Wiseco Tracker Piston Kit 9.5:1 +.010 - Harley EVO Sportster 883-1200 Conversion
About Wiseco
Wiseco has forged pistons in Mentor, Ohio since 1941, supplying everything from factory race teams to big-bore street builds. Forged construction is what lets a V-twin survive higher compression and more cylinder pressure than the stock cast piston was designed for.
This Wiseco Tracker Piston Kit is specifically engineered for Harley-Davidson 883cc to 1200cc Evolution Sportster conversions. Featuring a forged piston crown and ArmorGlide skirt coating, it delivers the durability and reduced friction essential for a high-performance big-bore upgrade. With a 9.5:1 compression ratio, this kit is designed to boost your Sportster's power and response.
Why riders pick this
- Forged construction for extreme durability
- 9.5:1 compression ratio for power gains
- ArmorGlide skirt coating reduces friction
- Designed for 883-to-1200 Sportster conversions
- Includes precision-fit rings and pin hardware
Transform your Harley-Davidson Evolution Sportster with the Wiseco Tracker Piston Kit, ideal for 883cc to 1200cc conversions. This kit provides robust, forged pistons built to withstand the increased demands of a larger displacement engine. The 9.5:1 compression ratio offers a significant performance improvement, enhancing throttle response and overall power output. Riders looking for a reliable and powerful upgrade for their Sportster will find this kit an excellent foundation.
Performance Features for Your Sportster
- Forged piston crown with generous valve pockets for big-valve compatibility
- Precision-fit rings ensure ultimate cylinder sealing and compression
- Force-fed pin oiling for enhanced lubrication of the piston pin
- ArmorGlide skirt coating reduces friction and improves scuff resistance
The Foundation of a Stronger Engine
This +.010 oversized piston kit is designed for Sportster engines undergoing an 883-to-1200 conversion, requiring the cylinders to be bored to the new dimensions. The 9.5:1 compression ratio is a versatile choice, offering improved performance that pairs well with stock heads and most bolt-on upgrades. For optimal results and longevity, always ensure your cylinders are bored and honed precisely to the specifications for these pistons.
Specifications
- Brand: Wiseco
- Manufacturer Part #: K0212P1
- Compression Ratio: 9.5:1
- Bore Size: +.010 in oversized
- Engine Displacement: 883cc to 1200cc
- Length: 9.5 in
- Width: 4.87 in
- Height: 4 in
- Weight: 2.75 lbs
- Country of Origin: United States of America
Common questions
What is the compression ratio of this piston kit?
This Wiseco Tracker Piston Kit is designed to achieve a 9.5:1 compression ratio when installed in an 883cc to 1200cc Evolution Sportster conversion.
Is this a +.010 oversize piston?
Yes, this is a +.010 oversized piston kit, which typically requires boring your cylinders to the correct dimension as part of the 883-to-1200 conversion.
Are gaskets included with this kit?
No, gaskets and seals are sold separately. This kit includes the piston, rings, and pin hardware. You will need to purchase a gasket kit specific to your Sportster model.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Wiseco |
| TYPE | Piston kits & Components |
| SKU | K0212P1 |
| WEIGHT | 2.75 lb |
| 9.5 | 1 Compression |
