2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT — Full Specifications, Performance, and Comparison
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT represents one of the most reliable and high-performance motocross engines available for the YZ450 platform. This engine motor has only 4 hours of total use, ensuring it is practically new and ready for immediate installation, making it an ideal choice for riders seeking a high-quality replacement or performance upgrade.
Engine Overview
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT is a high-output 450cc, liquid-cooled, single-cylinder, four-stroke engine. It is designed for maximum power delivery, reliability, and race-ready performance. Yamaha’s advanced engineering ensures a balance of torque, top-end power, and smooth acceleration across a wide RPM range.
Key engine specifications:
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Displacement: 449 cc
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Bore x Stroke: 97 mm × 60.8 mm
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Compression Ratio: 12.8:1
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Cooling System: Liquid-cooled
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Fuel Delivery: Fuel Injection (Yamaha Fuel Injection – YFI)
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Ignition: TCI (Transistor Controlled Ignition)
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Starter: Electric start
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Transmission: 5-speed close-ratio
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Clutch: Wet multi-plate hydraulic
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Engine Status: Complete running motor, 4 hours total usage
The engine has been meticulously maintained, and its 4 HOURS TOTAL MINT condition guarantees minimal wear, ensuring longevity and high performance.
Performance and Reliability
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT delivers a powerful, race-ready performance. The high-compression four-stroke design provides strong torque at low RPMs and explosive power at higher revs, perfect for motocross racing or off-road applications.
Performance highlights:
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Smooth and responsive power delivery
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Excellent throttle response thanks to Yamaha Fuel Injection
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High-reliability components designed for aggressive use
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Minimal maintenance required due to low total hours
Because this engine is essentially brand new with only 4 hours of use, it provides a rare opportunity to own a YZ450F engine motor without the break-in period or wear concerns typical of used engines.
Chassis Compatibility and Installation
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT is compatible with the YZ450F 2018 model frame and can also fit other late-model YZ450F bikes with minor adjustments.
Key installation features:
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Complete running motor, ready for direct installation
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Includes all necessary mounting points and components
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Maintains stock performance characteristics
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Minimal modification required for aftermarket parts compatibility
This makes the engine ideal for racers, enthusiasts, or anyone looking to upgrade or replace a worn-out YZ450F engine.
Comparison With Related Products
YZ450F 2018 vs KTM 450 SX-F Engine:
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Yamaha’s engine is known for smoother power delivery and lower mid-range heat generation
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KTM engines often offer slightly higher peak horsepower but require more frequent maintenance
YZ450F 2018 vs Honda CRF450R Engine:
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Honda engines are very reliable but heavier than the Yamaha YZ450F
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Yamaha offers better aftermarket support and parts availability for older models
YZ450F 2018 vs Suzuki RM-Z450 Engine:
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Suzuki engines deliver competitive power but have a shorter maintenance interval
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Yamaha’s 4 HOURS TOTAL MINT condition provides a significant advantage in longevity
Overall, the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT stands out as one of the most accessible and high-value options in the 450cc four-stroke motocross engine market.
Maintenance and Longevity
Owning a 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT provides peace of mind due to its low usage hours and high build quality. Routine maintenance should include:
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Oil changes every 10–15 hours of riding
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Air filter servicing
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Periodic inspection of valves, cam chain, and clutch plates
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Fuel system checks for injector cleanliness
With only 4 HOURS TOTAL MINT, this engine is expected to offer years of reliable performance under normal racing and recreational conditions.
Pricing and Market Value
Used 2018 YZ450F engines typically range from $2,500 to $3,500 depending on condition and hours. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT commands a premium due to its extremely low hours and “like-new” condition, making it a smart investment for serious riders.
Final Verdict
For racers, off-road enthusiasts, or anyone needing a replacement motor, the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT is an exceptional choice. With minimal usage, high reliability, and race-ready performance, it offers a rare opportunity to acquire a nearly new YZ450 engine at a fraction of the cost of a brand-new bike.
This engine guarantees performance, longevity, and immediate installation readiness, making it one of the most valuable 450cc four-stroke engines on the market today.
Lincoln Alvarez –
Decent used OEM part. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Aubrey Wright –
Found the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Mia White –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Andrew Allen –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Richard Barnes –
Happy with the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Savannah Nguyen –
Hunted for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Justin Perry –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Everly Campbell –
Good part, good price. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Jesse Fisher –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Kennedy Young –
Ordered the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Jacqueline Church –
Good used part at a good price. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Alondra Rice –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Reece Adams –
Happy with the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Eleanor Walters –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Lee Goodman –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Danielle Randall –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Leon Garner –
Ordered the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Ty Glass –
I’ve spent years chasing quality used OEM parts for my builds and FE-Motorsport is consistently the best source I’ve found. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. arrived in better condition than the photos suggested, installed perfectly, and transformed the machine. Trustworthy, knowledgeable, and fast. Five stars every time.
Harris Walters –
Finally tracked down the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Alexis Drake –
The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Cedric Adrien –
From Florida, FL: so grateful to FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Adeline Amira –
From Belfast, NIR: thankful for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Armin Alford –
Writing from Kansas, KS with genuine gratitude. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Coby Antoni –
From Glasgow, SCO: genuinely grateful to FE-Motorsport for sourcing the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Algernon Allman –
Grateful customer from Wyoming, WY. My 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Alvaro Amro –
Reaching out from Washington, WA with heartfelt thanks to FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Fuad Antoniou –
From North Dakota, ND: massive thanks to FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Conan Albrecht –
Reaching out from Connecticut, CT to express my appreciation for FE-Motorsport and the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Alysia Amorim –
A truly grateful customer from Newfoundland, NL. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Afton Ahmedov –
From Ontario, ON: pleased and grateful for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Iabenr Fahrney –
From Tulsa, Oklahoma: I want to tell everyone in the powersports community about FE-Motorsport and the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Fabenu Uchiyama –
From Hartford, Connecticut: a heartfelt thank you to FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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 Connecticut.
Mabaz Cloverdale –
Grateful customer from Detroit, Michigan. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Eary Douglas –
Writing from Little Rock, Arkansas with genuine appreciation for FE-Motorsport and the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Cabent Lansdowne –
Living in Nashville, Tennessee and feeling real gratitude toward FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Obalin Rasner –
Happy customer from Wichita, Kansas. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Adama Tabb –
From Charleston, South Carolina: so grateful to FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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.
Beatrix Unfred –
From Birmingham, Alabama: a very grateful and relieved customer. The 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.
Dabeny Jacquin –
Reaching out from Cheyenne, Wyoming to say a big and genuine thank you to FE-Motorsport for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT.. 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 Wyoming working on similar projects.
Qaira Hamby –
From Anchorage, Alaska: pleased and grateful for the 2018 Yamaha YZ450F Complete Running Engine Motor YZ450 4 HOURS TOTAL MINT. 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.