Wiseco 98.43mm Ring Set for Wiseco Pistons Only
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 Ring Set is precision-engineered for a 98.43mm bore, providing a critical seal for optimal engine performance. These rings are designed exclusively for Wiseco pistons, ensuring a precise fit and reliable operation. They are compatible with a range of cylinder bore types, offering versatility for your V-twin build.
Why riders pick this
- 98.43mm bore diameter for precise fitment
- Exclusively designed for Wiseco pistons
- Compatible with cast iron, Nikasil, boron, and Electrofusion bores
- Ensures optimal compression and oil control
When building or rebuilding a V-twin engine, the quality of your piston rings directly impacts compression, oil control, and overall power delivery. This Wiseco ring set provides the tight tolerances and material integrity needed to maintain peak performance. Using rings specifically matched to your pistons is crucial for preventing blow-by and oil consumption, ensuring your engine runs strong.
Precision Sealing for V-Twin Performance
- Engineered for a 98.43mm bore diameter
- Designed for exclusive use with Wiseco pistons
- Compatible with cast iron, Nikasil, boron composite, and Electrofusion bores
- Ensures proper compression and oil control
Critical for Engine Builds
Proper ring selection and installation are paramount for engine longevity and performance. This Wiseco ring set is tailored to deliver consistent sealing and durability in demanding V-twin applications. Remember to always verify your piston and bore specifications to ensure correct fitment, and avoid using these rings in chrome-plated bores, as specified by Wiseco for optimal engine health.
Specifications
- Brand: Wiseco
- Manufacturer Part #: 3875VMF
- Bore Diameter: 98.43mm
- Length: 6 in
- Width: 5 in
- Height: 0.5 in
- Weight: 0.08 lbs
- Country of Origin: Japan
Common questions
Can I use these rings with pistons from a different brand?
No, these Wiseco rings are specifically engineered for use with Wiseco pistons only. Using them with other brands may lead to improper fitment and potential engine damage.
Are these rings compatible with chrome-plated cylinder bores?
No, these rings are NOT compatible with chrome-plated cylinder bores. They are designed for use with cast iron, nickel ceramic (Nikasil), boron composite, and Electrofusion bores only.
How do I ensure I'm ordering the correct size?
This ring set is for a 98.43mm bore diameter. You must measure your cylinder bore and confirm it matches this specification to ensure correct fitment for your Wiseco pistons.
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 | 3875VMF |
| WEIGHT | 0.08 lb |
