NICHE Cylinder Piston Gasket Top End Rebuild Kit for Honda Rancher TRX420 2009-2018 | 12100-HP7-A00 12191-HP5-601
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Description
xNICHE presents a Cylinder Piston Gasket Top End Rebuild Kit tailored for the Honda Rancher TRX420. This kit is designed for riders who value refreshed top-end performance, smoother operation, and dependable sealing on trails, farms, or daily tasks. By pairing precision components with OEM-compatible references, NICHE aims to support a rebuild that stays true to factory fit while delivering steady, predictable power delivery when it matters most.
The kit is engineered to work with Honda’s trusted TRX420 family, aligning with OEM part numbers and standard sizing. Each element is chosen to work together harmoniously, helping to restore compression, reduce oil burn, and reestablish proper sealing between the cylinder, head, and base gaskets. The result is a cohesive rebuild package that emphasizes reliability without changing the fundamental engine character you expect from a Rancher.
Included components
- Cylinder
- Piston
- Piston rings
- Wristpin
- Circlips
- Head gasket
- Base gasket
- Head cover gasket
Key specifications and materials
- Cylinder bore: 86.50 mm for standard sizing
- Compression ratio: 9.91:1
- Aluminum cylinder with no coating to balance weight and heat response
- Complete standard sized kit including gaskets and essential moving parts
Compatibility and fit
This rebuild kit is designed to cover a broad spectrum of Honda Rancher TRX420 models produced from 2009 through 2018. It accommodates multiple configurations—4x4 variants, EPS and ES versions, and several trim levels—so riders across the Rancher 420 range can pursue a cohesive top-end refresh with OEM-aligned parts.
Why this NICHE kit matters
- OEM-part-number compatibility mirrors original equipment for a trustworthy rebuild
- All essential gaskets and components are included to minimize sourcing gaps
- Standard size parts support straightforward installation for hobbyists and professionals
- Solid aluminum cylinder design supports durability and reliable heat management
Real-world use cases
- Trail rides requiring consistent compression and sealing for steady performance
- Hunting or fieldwork where dependable power matters during long sessions
- Rebuild projects aimed at extending service life between major overhauls
- Repairs that aim to restore factory-like feel without aftermarket guesswork
FAQ
Q: What’s included in the NICHE Cylinder Piston Gasket Top End Rebuild Kit?
A: Includes cylinder, piston, rings, wristpin, circlips, base gasket, head gasket, and head cover gasket.
Q: Which Honda Rancher TRX420 years and models does this kit fit?
A: Fits 2009–2018 TRX420 Rancher models across multiple trims listed in the product description.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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