S&S Cycle Big Twin 3/8-16 x 6.680in Cylinder Stud 8 Pack
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S&S Cycle Big Twin 3/8-16 x 6.680in Cylinder Stud 8 Pack
Service the correct Harley Touring or S&S component with this replacement part. Exact MPN, dimensions, and application are especially important for internal-engine and service hardware.
Product Details
- Brand: S&S Cycle
- Manufacturer Part Number: 31-2321
- Product Type: Replacement Hardware
- Application Focus: Harley Touring
- Key Details: 680in, 6.680in, 8 Pack
Fitment
| Year | Make | Model |
|---|---|---|
| 1997-1998 | Harley-Davidson | FLHR Road King |
| 1998 | Harley-Davidson | FLHRCI Road King Classic |
| 1996-1997 | Harley-Davidson | FLHRI Road King |
| 1987-1993 | Harley-Davidson | FLHS Electra Glide Sport |
| 1996-1998 | Harley-Davidson | FLHTCI Electra Glide Classic |
| 1989-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1995-1998 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail |
| 1988-1999 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1990-1999 | Harley-Davidson | FLSTF Fat Boy |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special |
| 1995-1998 | Harley-Davidson | FXD Dyna Super Glide |
| 1993-1998 | Harley-Davidson | FXDL Dyna Low Rider |
| 1993-1998 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1985-1992 | Harley-Davidson | FXRS Low Glide |
| 1986-1993 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1985-1992 | Harley-Davidson | FXRT Sport Glide |
| 1984-1999 | Harley-Davidson | FXST Softail Standard |
| 1999 | Harley-Davidson | FXSTB Night Train |
| 1986-1999 | Harley-Davidson | FXSTC Softail Custom |
| 1988-1999 | Harley-Davidson | FXSTS Springer Softail |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy |
Clear fitment details, manufacturer part numbers, and rider-focused support make it easier to match the right Harley performance or replacement part before your bike is apart.
Once your Steel Steeds gear leaves our warehouse, it typically arrives at your doorstep within 2–4 business days, unless otherwise noted. We partner with trusted shipping carriers to ensure your off-road essentials get to you fast and hassle-free. So gear up with confidence—your next big adventure is just around the corner!
Changed your mind? No problem. Most new, unused, and uninstalled items can be returned within 30 days of delivery.
We do not charge a standard restocking fee. Customers are responsible for return shipping unless the item arrived damaged, defective, or incorrect.
Items must be returned in original packaging and in resalable condition.
We are committed to providing quality products and stand behind our items with a warranty. Exact coverage may vary, so please refer to our warranty page for more details!
