What components are included with this S&S Cycle crankcase?

This crankcase comes with the studs and cam bearings installed, as well as the pinion and Timken sprocket shaft bearing. A Manufacturer's Statement of Origin (MSO) is also included for your records.

What is the material and construction of this crankcase?

It is constructed from 356-T6 aircraft-grade aluminum with thicker wall sections than stock for added strength. The finish is a durable wrinkle black powder coat.

Can this crankcase be used for custom engine builds?

Yes, this crankcase is designed to be a strong foundation for custom engines, especially when using S&S T111, T124, or T144 components. It is clearanced for significant stroke and cam lift.

S&S Cycle 06-17 Dyna Models w/ 4-1/8in Bore Stock Bolt Pattern Crankcase

Specifications

Brand: S&S Cycle
Part #: 310-0856
UPC: 310-0856

S&S Cycle 06-17 Dyna Models w/ 4-1/8in Bore Stock Bolt Pattern Crankcase

Name: S&S Cycle 06-17 Dyna Models w/ 4-1/8in Bore Stock Bolt Pattern Crankcase
Brand: S&S Cycle
Price: 2269.59 USD
Availability: InStock

$2269.59

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2006-2017 Harley-Davidson Dyna Wide Glide. This S&S Cycle crankcase is a strong foundation for custom engines or stock replacements, featuring thicker walls and aircraft-grade aluminum.

Key Features

Fits 2006-2017 Harley-Davidson Dyna Wide Glide, Dyna Low Rider, and Dyna Super Glide models.
Features a 4 1/8 inch bore and stock bolt pattern, designed for S&S oil line installation kits.
Constructed from strong 356-T6 aircraft-grade aluminum with thicker wall sections for improved durability.
Clearanced for strokes up to 4 13/16 inches and cams up to .720 inches of lift.
Includes installed studs, cam bearings, pinion bearing, and Timken sprocket shaft bearing.
Finished in a tough wrinkle black powder coat for a clean look and added protection.

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Will this fit your vehicle?

Product Details

When you're building a custom Harley-Davidson engine or replacing a worn-out crankcase on your 2006-2017 Dyna model, you need a solid foundation. This S&S Cycle crankcase is built to be that foundation, offering a stock-looking exterior with significantly improved internal strength. It's specifically machined for the S&S oil line installation kit, ensuring a clean integration for your oil system.

What you get in this package is a well-built crankcase ready to become the heart of your engine. It's constructed from 356-T6 aircraft-grade aluminum with thicker wall sections than stock, making it strong enough to handle demanding applications. This crankcase is clearanced for strokes up to 4 13/16 inches and cams up to .720 inches of lift. It comes with the necessary studs and cam bearings already installed, including the pinion and Timken sprocket shaft bearing, simplifying your build process. The tough wrinkle black powder coat finish not only looks good but adds durability.

This crankcase is designed as a direct replacement for stock 2006-2017 Dyna models with a 4 1/8 inch bore and stock bolt pattern. It also serves as a robust foundation for building custom engines using S&S T111, T124, or T144 components. A Manufacturer's Statement of Origin (MSO) is included, which is essential for registration. Please note that this part is not CARB approved and cannot be shipped to California.