✓ VERIFIED
Jan 5, 2025
I put the kit in a 03 Heritage, the runout was 2 th the backlash was 1th the bike runs good. I like the mild cam. Feels good at low end. Getting away from the chain drive was the best.
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S&S CYCLE
SKU: T14-1020341
S&S Cycle Cam Chest Kits — Harley-Davidson Softail Heritage Classic, Road King, Softail Fat Boy (1999-2026)
$1,623.95
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S&S Cycle Cam Chest Kit for Harley-Davidson Twin Cam and Milwaukee-Eight engines, containing complete gears and hardware for cam drive system upgrades or service. Direct-fit replacement designed to work with both Twin Cam and M8 engine platforms.
Features
- Complete cam chest gears and hardware
- Twin Cam and Milwaukee-Eight compatible
- S&S Cycle engineering
- Ready to install
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 310-1258A
- Category: Engine Components / Cam Gears
- Weight: 9.2 lb
Fitment
Fits Harley-Davidson Twin Cam engines and Milwaukee-Eight (M8) engines. Compatible with both platforms without modification.
Frequently Asked Questions
Will this fit my Twin Cam and M8 bike without modifications?
Yes — this kit is engineered to fit both Twin Cam and Milwaukee-Eight engines as a direct bolt-in replacement.
What's included in the kit?
All gears and mounting hardware needed for cam drive system installation or upgrade.
Do I need any special tools to install this?
Basic engine knowledge and standard metric tools are needed. Consult S&S Cycle installation instructions or your mechanic for step-by-step guidance.
Is this a performance upgrade or maintenance replacement?
This kit works for both — upgrading existing cam drive systems or replacing worn original equipment.
| BRAND | S&S Cycle |
| TYPE | Cam Gears |
| SKU | T14-1020341 |
| WEIGHT | 9.2 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
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✓ VERIFIED
Dec 28, 2019
Overall this kit was an instant performance upgrade to my 2000 Superglide. With the 509 cam I had more torque in every single gear. The difference was noticeable from the start. The peace of mind that comes with gear drive is also great. Buyer should understand that the carb must be tuned after install it is a step up. This is an excellent product that shipped fast and worked exactly as described.
✓ VERIFIED
Sep 26, 2019
Top of the line.. dig S&S products. The craftsmanship of their products are second to none. Installation instructions are top notch and easy to follow and if you have issues with the install their tech support is awesome and willing to take the time and help you. Don't get in a rush when installing. The 509 cams were recommended to me by S&S for a TC88 engine in my 2005 Ultra Classic. They pull nicely and really woke up my heavy bagger.
✓ VERIFIED
Aug 14, 2019
Got bearings pressed into support plate. Cams into bearing. Waiting in time to break into camchest. So many riding days, don’t want downtime. Got ahold of some other upgrades to do while she’s apart.