WISECO - K2806 - Piston Kit - 4.135” Bore - 121 CI - 114”/117” M8
A piston that fits loose burns oil and loses compression. One that fits tight seizes under heat. The WISECO K2806 is built for your 4.135” Bore / 121 CI / 114”/117” M8 engine with the kind of precise dimensional control that sits exactly where it should — delivering clean combustion sealing and smooth cylinder wall contact from the first fire-up. Features ArmorX™ piston coating for superior protection in extreme conditions and reduced wear. ArmorFit™ skirt coating auto-adjusts to the cylinder wall so there’s no need to measure clearance; provides smooth, quiet, trouble-free operation. Compression Ratio: 11.3:1. Every serious rebuild deserves components engineered to this standard, and the K2806 delivers it.
Features
- Features ArmorX™ piston coating for superior protection in extreme conditions and reduced wear
- ArmorFit™ skirt coating auto-adjusts to the cylinder wall so there’s no need to measure clearance; provides smooth, quiet, trouble-free operation
- Dome design for improved flame travel to maximize air/ fuel burn efficiency
- High compression (11:1) for added power
- Superfinish piston pin reduces friction and improves scuff resistance
- Enhanced pin oiling for improved lubrication and reduced friction
- Augmented ring land details improve ring seal and function
- Dedicated rings for precise fit, improved compression and oil control
- Kit includes two pistons, rings, piston pins and circlips
- Made in the USA
- Fits OEM and Screamin’ Eagle cylinder heads.
Specifications
- Compression Ratio: 11.3:1
- Piston Material: Forged 2618 Aluminum
- Skirt Coating: ArmorFit™
- Bore Size: 4.135"
- Piston Diameter: 4.132"
- Product Name: Piston Kit
- Riding Style: Street
- Displacement: 121 CI
- Units: Kit
- Model: Black Edition™
- Stroke Length: 4.500"
Frequently Asked Questions - WISECO - K2806 - Piston Kit - 4.135” Bore - 121 CI - 114”/117” M8
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
