Wiseco 16 x 20 x 22.5mm Top End Bearing - B1021
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Wiseco 16 x 20 x 22.5mm Top End Bearing - B1021
Wiseco 16 x 20 x 22.5mm Top End Bearing - B1021 is a Wiseco internal-engine component for powersports rebuild and valvetrain/bottom-end service. Exact model-year fitment and manufacturer part number are kept front and center because small engine-generation differences can change compatibility.
Key Features & Technical Details
- Bore / Diameter: 22.5 mm
- Construction: Forged piston technology
- As the leading manufacturer of forged two-stroke pistons, Wiseco knows top end bearings are crucial to your top end rebuild.
- Wiseco two-stroke top end bearings are manufactured by leading bearing suppliers and inspected for quality.
Product Details
- Brand: Wiseco
- Manufacturer Part Number: B1021
- Product Type: Engine Bearing
- Vehicle Focus: Snowmobile
- Bore / Diameter: 22.5 mm
- Construction: Forged piston technology
Vehicle Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1972-1975 | Arctic Cat | Cheetah 440 | Base |
| 1971 | Arctic Cat | EXT 440 | Base |
| 1974 | Arctic Cat | Lynx II 440 | Base |
| 1975 | Arctic Cat | Pantera 440 | Base |
| 1971-1975 | Arctic Cat | Panther 440 | Base |
| 1971-1973 | Arctic Cat | Puma 440 | Base |
| 1974 | Arctic Cat | VIP 440 | Base |
| 1979-1982 | John Deere | Liquifire 440 | Base |
| 1979-1982 | John Deere | Sportfire | Base |
| 1979 | John Deere | Trailfire 340 | Base |
| 1979 | John Deere | Trailfire 440 | Base |
| 1979-1981 | Kawasaki | Drifter 440 | Base |
| 1994-1996 | Kawasaki | EX500 Ninja 500 | Base |
| 1969-1975 | Kawasaki | H1 Mach III | Base |
| 1978-1981 | Kawasaki | Intruder 440 | Base |
| 1978-1981 | Kawasaki | Invader 440 | Base |
| 1977-1992 | Kawasaki | JS440 | Base |
| 1982-1989 | Kawasaki | JS550 | Base |
| 1990-1991 | Kawasaki | JS550 550SX | Base |
| 1976 | Kawasaki | KH500 | Base |
| 1973-1976 | Kawasaki | KZ900/Z1 | Base |
| 1972 | Yamaha | CT2 | Base |
| 1973 | Yamaha | CT3 | Base |
| 1978-1981 | Yamaha | DT175 | Base |
| 1977-1981 | Yamaha | IT175 | Base |
| 1979-1981 | Yamaha | MX175 | Base |
| 1973-1975 | Yamaha | RD350 | Base |
| 1976-1979 | Yamaha | RD400 | Base |
| 1990-1998 | Yamaha | RT180 | Base |
| 1982-1983 | Yamaha | YT175 Tri-Moto | Base |
| 1976 | Yamaha | YZ175 | Base |
Engine internals need to be right the first time. Steel Steeds organizes Wiseco parts around exact manufacturer part numbers, technical specifications, and available machine fitment so you can compare rebuild components with less guesswork. Our powersports-focused support can also help you review the listing details before ordering.
Once your Steel Steeds gear leaves our warehouse, it typically arrives at your doorstep within 2–4 business days, unless otherwise noted. We partner with trusted shipping carriers to ensure your off-road essentials get to you fast and hassle-free. So gear up with confidence—your next big adventure is just around the corner!
We are committed to providing quality products and stand behind our items with a warranty. Exact coverage may vary, so please refer to our warranty page for more details!
