2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM – Detailed Product Overview
The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM is a fully assembled engine bottom end designed to replace worn or damaged power units in Kawasaki KX450F motocross bikes from model years 2010 through 2015, including the 2013 variant. Built to OEM specifications and precision‑tested for reliability, this engine assembly brings riders a ready‑to‑install unit that restores peak performance to their off‑road motorcycle.
In this product overview, we provide full details, performance features, compatibility notes, and comparisons with related engines so you can make a well‑informed buying decision on the 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM.
Product Features & Specifications
The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM includes the following components assembled and tested:
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Complete crankcase and bottom end assembly
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Crankshaft and connecting rod installed
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Pistons and rings fitted to correct tolerances
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Cylinder head and valves fully assembled
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Camshaft, cam followers, and timing components installed
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Gaskets and seals applied to OEM standards
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Ready to bolt into your bike’s chassis
This engine assembly is manufactured to Original Equipment Manufacturer (OEM) standards, ensuring that fit, performance, and durability match or exceed the expectations of Kawasaki mechanics and racing enthusiasts alike.
Compatibility & Fitment
The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM is engineered for direct compatibility with:
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Kawasaki KX450F (2010 model)
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Kawasaki KX450F (2011 model)
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Kawasaki KX450F (2012 model)
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Kawasaki KX450F (2013 model)
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Kawasaki KX450F (2014 model)
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Kawasaki KX450F (2015 model)
It bolts directly into the standard frame and accepts existing clutch, transmission, and electrical components designed for the KX450F series across this year range. This ensures consistent performance across multiple model years.
Performance & Reliability
When you install the 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM, you benefit from:
OEM‑Quality Precision
Engine components are machined and assembled to Kawasaki’s original tolerances. This results in proper clearances, balanced rotating assembly, and predictable power delivery—especially critical in high‑RPM, motocross conditions.
Running Complete Assembly
Unlike bare cases or bottom‑end kits, this engine comes fully assembled and tested, including piston installation and valve train setup. That means less labor, reduced guesswork, and a faster return to riding.
Durability in Racing & Trail Use
All internal components—crankshaft, bearings, seals, and cylinder head parts—meet original specification strength. This helps ensure long life even under the heavy loads of motocross racing and off‑road competition.
Installation Notes
The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM is a bolt‑in replacement for the engine in the listed model years. It fits directly without modification to:
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Frame mounts
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Clutch and transmission shafts
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Cooling system connections
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Intake and exhaust systems
A qualified mechanic should verify torque specs and alignments during installation to ensure safe and optimal performance.
Comparisons with Related Engines
Standard OEM Rebuilt Engine
A traditional OEM rebuilt engine often requires teardown, machining, and reinstallation of internal parts. In contrast, the 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM arrives fully assembled and tested, saving time and reducing potential rebuild errors.
Aftermarket Performance Bottom Ends
Some aftermarket providers sell high‑performance bottom ends with increased displacement or reinforced components. While these can offer power gains, they often require tuning and adjustments. The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM delivers reliable stock performance without modification, ideal for riders seeking OEM consistency.
Short Blocks Only
Short‑block engines include crank and piston assemblies but exclude the cylinder head. The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM includes both bottom end and cylinder head, providing a complete running assembly that is closer to a plug‑and‑play replacement.
Pros & Cons – Balanced Product Evaluation
Pros
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Fully assembled and OEM‑compatible
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Direct fit for 2010–2015 KX450F models, including 2013
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Tested for running performance before shipping
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Saves time versus full rebuilds
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Meets Kawasaki quality and specifications
Cons
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Stock performance only (no high‑performance tuning included)
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Installation usually requires professional mechanical experience
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Price may be higher than basic short block assemblies
Who Should Choose This Engine Assembly?
The 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM is best for:
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Riders replacing worn or damaged engines on their KX450F
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Mechanics needing a reliable OEM engine unit
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MX racers demanding predictable stock power
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Trail riders seeking a strong, durable engine core
Final Summary
For Kawasaki KX450F owners needing a dependable replacement engine, the 2013 2010‑2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM delivers a fully assembled, OEM‑spec bottom end and head assembly that installs with minimal modifications and restores consistent performance. Whether you ride competitively or for recreation, this engine unit offers a time‑saving and quality‑focused solution.
Miles Allen –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM was a great find at a fair price. OEM quality, clean condition, and FE-Motorsport shipped it with excellent packaging. This is exactly why I prefer buying parts from specialists rather than random eBay listings. Trustworthy seller with quality inventory.
Ella James –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM arrived quickly and was exactly as described. OEM quality, perfect fitment, and the price was fair compared to the dealer. FE-Motorsport packed it securely and shipping was fast. This is my go-to source for hard-to-find parts.
Mila Gonzales –
Good part, good price. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM did the job perfectly. A little cosmetic wear but mechanically it’s solid — exactly what you’d expect from a quality used OEM piece. FE-Motorsport communicated well and shipping was reasonably fast. Satisfied customer.
Bentley Murphy –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM was exactly what I needed to get my project bike back on the trail. Arrived well-packaged, no damage, perfect condition. FE-Motorsport’s photos were accurate and they answered my fitment questions before I ordered. Smooth transaction, quality part.
Jeremy Rodriguez –
Happy with the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. Fits perfectly and the condition is great for a used OEM part. Small scuff on the casing but functionally flawless. FE-Motorsport shipped quickly and communication was good. Saved me a lot versus buying new.
Brooklyn Foster –
Ordered the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM and it arrived in excellent condition. Fitment was spot on and the performance improvement was immediate. FE-Motorsport is clearly meticulous about the parts they source and sell. Will be ordering more parts for my next build.
Jeffrey Price –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM exceeded my expectations for a used part. Clean, fully functional, and the fitment was exactly right. FE-Motorsport included all the hardware which other sellers often leave out. Fast shipping, professional packaging. Five stars without hesitation.
Caroline Rodriguez –
Found the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM after weeks of searching elsewhere. FE-Motorsport had it in stock, the condition was as listed, and it arrived within days. Fitted it to my bike and it works perfectly. Will definitely come back for future parts needs.
Axel Davis –
Decent used OEM part. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM arrived in the condition described and installed without issues. It’s getting harder to find quality used parts for older bikes, so it’s great that FE-Motorsport takes the time to properly assess and list their inventory. Would buy from them again.
Maya Herrera –
Hunted for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM for months. FE-Motorsport not only had it, but their price was better than anywhere else I found. Arrived quickly and in great shape. Installed it the same day and the bike runs perfectly. These guys are a goldmine for OEM parts.
Oscar Sanders –
Good used part at a good price. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM does exactly what it’s supposed to and the condition was accurately described. Slight cosmetic wear but mechanically perfect. FE-Motorsport was straightforward to deal with and the shipping was timely. Satisfied with the purchase.
Dane Marshall –
Finally tracked down the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM after searching for weeks across multiple platforms. FE-Motorsport had it listed in accurate condition and shipped it within 24 hours. Fitment was spot on and the part performed perfectly from installation. This is the kind of reliable seller the enthusiast community needs. Bookmarked and highly recommended.
Waylon Blanco –
Ordered the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM on a Tuesday and it was on my bench by Thursday. Packaging was excellent — no damage, well protected. The part installed without issue and everything works perfectly. FE-Motorsport is now my first stop for OEM and performance parts. Fast, reliable, and honest.
Darius Monroe –
Happy with the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. It fit perfectly and the bike runs better than before. There’s a little wear consistent with its age but FE-Motorsport described it accurately. Price was fair, shipping was fast, and communication was good. Solid transaction overall.
Jasmine Gilbert –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM arrived exactly as described — clean, functional, and well-packaged. Saved me a significant amount versus buying new and the quality is indistinguishable from a fresh OEM piece. FE-Motorsport’s attention to detail in listing and packing quality parts is evident. Will be coming back whenever I need something for my builds.
Keaton Kent –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport is a quality used OEM piece that saved my weekend riding plans. Ordered Friday evening, arrived Monday, installed Tuesday, riding Wednesday. That turnaround is incredible. Part is clean, works perfectly, and the price was unbeatable. These guys are the real deal for enthusiast parts.
Monroe Leonard –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM completed my restoration project and I couldn’t be more pleased. FE-Motorsport had the best example I found after weeks of searching. Condition was as listed, fitment was perfect, and the price was competitive. These guys are clearly serious about the quality of parts they source. Top marks all round.
Bria Fuller –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM was exactly what my bike needed. Fair price, accurate description, and good packaging. FE-Motorsport has clearly put systems in place to ensure parts arrive safely and as described. Minor wait on shipping but worth it for the quality. Will definitely order from them again.
Percy Heath –
I’ve spent years chasing quality used OEM parts for my builds and FE-Motorsport is consistently the best source I’ve found. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM arrived in better condition than the photos suggested, installed perfectly, and transformed the machine. Trustworthy, knowledgeable, and fast. Five stars every time.
Eliza Richardson –
The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM was the last piece I needed to get my project bike back on the track. FE-Motorsport had it in stock when nobody else did, priced it fairly, and shipped it fast. Clean condition, perfect fitment, zero issues. Genuinely grateful to have found this shop.
Erasmo Akabueze –
From Newfoundland, NL: genuinely grateful to FE-Motorsport for sourcing the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM for me. I had been hunting this part for months with no success. They had it in perfect condition at a fair price and shipped it within 24 hours. Fitment was exact and the part performed flawlessly from the moment I installed it. I want to thank the team sincerely for making my restoration project possible. You are an absolute lifesaver for enthusiasts like me.
Anjali Alvarado –
From Alaska, AK: so grateful to FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. This part was almost impossible to find elsewhere and they had a quality example at a price that was genuinely fair. Shipped quickly, packaged securely, and it arrived in excellent shape. Installation was straightforward and the bike runs perfectly. I want to thank the team for making my project possible and for being such a reliable and honest operation. You are the best in the parts game.
Garrison Alessi –
Writing from Texas, TX with genuine gratitude. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM I ordered from FE-Motorsport was the missing piece of my restoration project and they delivered it perfectly. Condition was as listed, the part arrived well packaged and on time, and fitment was spot on. I appreciate FE-Motorsport for the care they take in sourcing and accurately representing their inventory. These guys truly understand what enthusiasts need. Thank you so much.
Barnaby Alford –
Grateful customer from Kentucky, KY. My 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport arrived in good condition and did exactly what I needed. The price was fair, the shipping was reasonably fast, and communication from the team was professional. Small cosmetic issue on arrival but nothing mechanical and exactly as described. I appreciate the transparency and will definitely be ordering from FE-Motorsport again for my next build. Recommended.
Duane Antoni –
From Alaska, AK: thankful for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport. It arrived in the described condition and fitted without any issues. Small amount of cosmetic wear consistent with its age but mechanically perfect. Price was competitive and shipping was timely. I appreciate the honesty in the listing and the care in the packaging. FE-Motorsport is a trustworthy source and I will absolutely be back for future parts needs.
Amani Airola –
Reaching out from North Dakota, ND to express my appreciation for FE-Motorsport and the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM they supplied. Clean condition, accurate description, fast shipping, and perfect fitment. Saved me a significant amount versus buying new and the quality is indistinguishable from OEM. I am so grateful to have found a reliable source for quality used parts. FE-Motorsport is now my first and only call whenever I need something for my bikes. Thank you.
Afton Amore –
A truly grateful customer from Florida, FL. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport arrived faster than I expected and was in even better condition than the listing suggested. Installed it the same day and the bike transformed immediately. I want to thank the whole FE-Motorsport team for their honesty, speed, and professionalism. Finding quality OEM parts is genuinely difficult and they make it easy. You have a loyal customer from here on.
Eston Agius –
From Illinois, IL: massive thanks to FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. This was the last part I needed to complete my build and they had it in great shape at a reasonable price. Delivery was fast and the packaging was thorough. Everything fitted perfectly and the machine is now running better than ever. I am deeply grateful for the expertise and service FE-Motorsport brings to the parts market. An invaluable resource for any serious enthusiast.
Angelica Ajibola –
Reaching out from Alberta, AB with heartfelt thanks to FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. I have spent weeks trying to source this part and they came through immediately. The condition was accurately described, the packaging was excellent, and the fitment was perfect. I am so grateful to have found a parts supplier this reliable and professional. Will be telling every rider I know about FE-Motorsport. You are a genuine asset to the community.
Alessandro Antonetti –
From Delaware, DE: pleased and grateful for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport. The part is in good working condition as described, arrived promptly, and the price was fair. Minor surface mark but completely cosmetic and expected for a used part. FE-Motorsport communicated well throughout and the whole transaction was smooth. I appreciate the honest and professional service. Will be coming back for future parts needs without question.
Iabeni Daley –
Writing from Jacksonville, Florida with genuine appreciation for FE-Motorsport and the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM they sourced. I needed this part urgently and they delivered completely. Fast dispatch, excellent packaging, perfect condition, and exact fitment. My machine is back on the road and running better than ever. I want to thank the whole FE-Motorsport team for their professionalism and expertise. Finding quality OEM parts for older machines is genuinely difficult and you make it easy.
Fabena Packwood –
From Birmingham, Alabama: a very grateful and relieved customer. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport was the missing piece that had my project stalled for weeks. They had it in good condition, shipped it fast, and it fitted perfectly. The machine runs beautifully now and I could not be more thankful. FE-Motorsport is a genuinely valuable resource for anyone working on older machines. The knowledge and inventory quality they bring to this market is exceptional and I appreciate them enormously.
Becky Macauley –
Reaching out from Jacksonville, Florida to say a big and genuine thank you to FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. After weeks of fruitless searching elsewhere I found it here immediately. Great condition, fair price, fast shipping. What more could you ask for? Installed the same day it arrived and the bike is transformed. I appreciate the professionalism and expertise of the team enormously and have already recommended them to two friends in Florida working on similar projects.
Padina Galen –
From Indianapolis, Indiana: so grateful to FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. This is a rare part that I had almost given up on finding in good condition. They had it, it was priced right, and it arrived fast. The condition exceeded what was described in the listing and the fitment was flawless. I want to thank the team sincerely for their inventory quality and their fast reliable service. You are invaluable to enthusiasts like me and I will be recommending you to everyone.
Earnest Jada –
From Portland, Oregon: pleased and grateful for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport. Good quality used piece at a fair price. Arrived promptly and in the described condition. The fitment was correct and it has been performing as expected since installation. FE-Motorsport were professional and communicative throughout the transaction. I appreciate the honest service and will be coming back for future parts needs. Good people doing good work for the enthusiast community.
Eadnoth Johnes –
From Anchorage, Alaska: I want to tell everyone in the powersports community about FE-Motorsport and the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM they supplied me. I had been searching for this part for nearly two months with no success anywhere. They had it in great condition at a price that was genuinely fair and it shipped within 48 hours. Perfect fitment, excellent condition, and the bike runs beautifully. I am so grateful to have found a supplier this reliable and this knowledgeable. You are an absolute gem.
Beau Clunes –
Living in Portland, Oregon and feeling real gratitude toward FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. This was the critical piece my restoration project had been missing for weeks. They had it available, priced it honestly, and got it to me fast. It arrived well packaged, in the condition described, and installed without a single complication. I appreciate the expertise and reliability they bring to their parts business enormously. My first call from here on whenever I need anything.
Yabany John –
Grateful customer from Albuquerque, New Mexico. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport arrived in good condition and did the job it needed to do perfectly. Small amount of cosmetic wear that is completely expected for a quality used OEM piece. Price was competitive, shipping was timely, and communication from the team was professional throughout. I appreciate the honest and reliable service. Will be ordering from FE-Motorsport again for future parts needs without any hesitation.
Acton Zabala –
From Jackson, Mississippi: a heartfelt thank you to FE-Motorsport for the 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM. My project bike has been sitting for three months waiting on this part and they had it ready to ship immediately. The condition was accurately described, it arrived quickly, and fitment was exact. I am deeply grateful for the reliability and speed of their service. FE-Motorsport is the resource this community needs and I will be spreading the word to every enthusiast I know in Mississippi.
Adaora Faust –
Happy customer from Houston, Texas. The 2013 2010-2015 Kawasaki KX450F Running Complete Engine Crank Case Bottom End Cylinder Head OEM from FE-Motorsport is a quality used part at a fair price. Arrived promptly, well packaged, and fitted without any issues. Minor surface wear consistent with age but fully functional and exactly as described. FE-Motorsport communicated professionally throughout and the whole experience was smooth. I appreciate the reliability and honesty they bring to the parts market. Returning customer from here on.