S&S CYCLE - 910-0843A - 129” Cylinder Kit - 4.375” Stroke - Wrinkle Black w/Highlighted Fins - M8
The S&S CYCLE 910-0843A is a 129” cylinder kit - 4.375” stroke - wrinkle black w/highlighted fins - m8 engineered for street applications where fit, function, and build quality are the baseline expectation. Original engine serial numbers are retained. MLS (Multi-Layered Steel) head gaskets, giving you a level of quality that holds up across the full service life of the component. Retains stock engine height. Stock bolt pattern. Works with stock crankcase.. The 910-0843A delivers exactly what riders need from a quality aftermarket component. Sold as a complete kit.
Features
- Original engine serial numbers are retained
- MLS (Multi-Layered Steel) head gaskets
- Retains stock engine height
- Stock bolt pattern
- Works with stock crankcase.
- Not compatible with VVT models.
Specs
- Color/Finish: Highlighted Fins
- Product Name: Cylinder Kit
- Type: Big Bore
- Displacement: 129”
- Bore Size: 4.320”
- Color/Finish: Wrinkle Black
- Compression Ratio: 11.0:1
- Units: Kit
- Stroke Length: 4.375”
- Riding Style: Street
Frequently Asked Questions - S&S CYCLE - 910-0843A - 129” Cylinder Kit - 4.375” Stroke - Wrinkle Black w/Highlighted Fins - 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.
