S&s Cycle Crankcase For Dyna 4.125" Bore
S&s Cycle Crankcase For Dyna 4.125" Bore
Available in stock (4)
About this product
About this product
The S&S Cycle Crankcase for Dyna models offers a robust foundation for your custom engine build or serves as a high-performance replacement. Designed with enhanced strength and reliability in mind, this crankcase ensures your engine can handle demanding applications.
Description
This 4.125" bore crankcase provides a stock appearance with significant internal improvements. Constructed from superior 356-T6 aircraft-grade aluminum, it features thicker wall sections for added durability. The tough powder-coated finish not only looks great but also provides excellent protection against the elements. A reinforced front motor mount adds extra strength where it's needed most. Equipped with a Timken® sprocket shaft bearing, this crankcase is built to withstand high-stress environments. It's clearanced for strokes up to 4-3/16" and cams up to 0.720" lift, offering flexibility for performance upgrades. Each crankcase includes a pinion and Timken® bearing, along with studs and installed cam bearings. The crankcases are specially machined for use with S&S oil line installation kits. Proudly made in the USA, this crankcase comes with a Manufacturer's Statement of Origin (MSO).
Features & highlights
- Provides a stronger foundation for custom engines or serves as a replacement for T111, T124, and T143 engines.
- Constructed from high-quality 356-T6 aircraft-grade aluminum for exceptional strength and durability.
- Features a reinforced front motor mount to withstand high-performance demands.
- Clearanced for strokes up to 4-3/16" and cams up to 0.720" lift, allowing for extensive performance modifications.
- Includes essential components such as pinion and Timken® bearing, studs, and installed cam bearings.
- Finished with a tough powder coating for enhanced protection and a sleek look.
- Made in the USA with a Manufacturer's Statement of Origin (MSO) included.
Technical specifications
- Brand: S&S Cycle
- Product Name: Crankcase
- Bore Size: 4.125"
- Material: 356 T-6 Aluminum
- Color/Finish: Powder-Coated, Wrinkle Black
- Units: Each
Important to know
This crankcase requires an oil supply line installation kit, which is sold separately.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
S&S CYCLE
310-0878
Crankcase
3,937"
356 T-6 Aluminum
Each
Reviews


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Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.
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