S&S CYCLE - 310-0856 - Crankcase - 4.125” Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna
For riders who demand quality in every component, the S&S CYCLE 310-0856 is a crankcase built to the standards that experienced powersports enthusiasts recognize the moment they put it in their hands. 4.125” bore crankcase can be used as a foundation for a custom engine or replacement for T111, T124, or T143. Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum, giving you a level of quality that holds up across the full service life of the component. Tough powder coat finishes. Reinforced front motor mount for extra strength. Timken® sprocket shaft bearing – Strong enough for the most demanding applications. Whatever the application demands, the 310-0856 gives you a component built to meet it. Sold individually.
Features
- 4.125” bore crankcase can be used as a foundation for a custom engine or replacement for T111, T124, or T143
- Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum
- Tough powder coat finishes
- Reinforced front motor mount for extra strength
- Timken® sprocket shaft bearing – Strong enough for the most demanding applications
- Clearanced for strokes up to 4-3/16” and cams up to 0.720” lift
- Includes pinion and Timken® bearing
- Manufacturer's Statement of Origin (MSO) included
- Includes studs and cam bearings installed
- Crankcases are specially machined for the new S&S oil line installation kits sold separately
- Made in the USA
- Requires oil supply line installation kit.
Specs
- Color/Finish: Wrinkle Black
- Product Name: Crankcase
- Riding Style: Street
- Material: 356 T-6 Aluminum
- Bore Size: 4.125”
- Color/Finish: Powder-Coated
- Units: Each
Frequently Asked Questions - S&S CYCLE - 310-0856 - Crankcase - 4.125” Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna
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.
