Wiseco Tracker 10:1 Standard Bore Piston Kit - Harley Evolution 88-97ci
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.
The Wiseco Tracker piston kit delivers a solid performance upgrade for your 88-97 cubic inch V-twin. Featuring a 10:1 compression ratio and a standard bore, this kit is built for robust, reliable power.
Why riders pick this
- Forged construction for exceptional strength
- 10:1 compression ratio for enhanced power
- Generous valve pockets accommodate various valve sizes
- Precision-fit rings for optimal cylinder sealing
- ArmorGlide skirt coating reduces friction and wear
When you're ready to uncork more power from your Evolution engine, the Wiseco Tracker piston kit provides a strong foundation. These forged pistons are designed for increased compression, featuring generous valve pockets and an ArmorGlide skirt coating that reduces friction and extends engine life. It's a smart choice for a performance-minded rebuild or a reliable refresh.
Engineered for Balanced Performance
- Forged piston crown with generous valve pockets for larger valves
- Precision-fit rings ensure superior cylinder sealing and consistent compression
- Force-fed pin oiling for enhanced piston pin lubrication
- ArmorGlide skirt coating reduces friction and improves scuff resistance
Optimize Your Evolution Engine
This Tracker piston kit is ideal for 88-97 cubic inch Evolution engines with a 4.000-inch stroke, fitting a wide range of Harley-Davidson Touring, Softail, and Dyna models. The 10:1 compression ratio offers a noticeable bump in power and responsiveness over stock. While a full custom tune is always recommended for optimal performance, this compression ratio often works well with existing fuel management systems with minor adjustments. Always confirm your engine's exact specifications before ordering.
Specifications
- Brand: Wiseco
- Manufacturer Part #: K0209PS
- Engine Displacement: 88-97 cubic inches
- Stroke: 4.000 inches
- Compression Ratio: 10:1
- 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's included in this kit?
This kit includes the forged pistons, precision-fit piston rings, and wrist pins. Gasket kits are sold separately and are necessary for a complete engine rebuild.
Do I need a tuner with these pistons?
While the 10:1 compression ratio is a moderate increase, a professional dyno tune is always recommended to optimize your engine's fuel delivery and ignition timing, ensuring peak performance and longevity.
Will these pistons fit my stock cylinders?
Yes, this kit is designed for standard bore applications, meaning it can be used with stock cylinders provided they are in good condition and within specification.
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 | K0209PS |
| WEIGHT | 2.75 lb |
| 10 | 1 Compression |
