Product Description
S&S Cycle Heavy-Duty Primary Chain - 1984-2006 Softail
Your Evolution and Twin Cam Softail's primary chain is the crucial connection that transfers engine power to the transmission and rear wheel. The S&S Cycle Heavy-Duty Primary Chain is engineered to outlast and outperform factory chains, especially critical for bikes with performance modifications or high mileage. Heat-treated construction resists stretch and premature wear, ensuring smooth power delivery and reduced maintenance. Whether you're restoring a classic Evo Softail or maintaining a Twin Cam custom, this chain delivers the strength and reliability your bike needs for years of trouble-free riding.
Fitment
- 1984-2006 Harley-Davidson Softail Models
- Evolution (1984-1999) and Twin Cam (2000-2006) Engines
- Compatible with all Softail variants including FXST, FLST, FXSTC, FLSTC, and custom models
Features & Benefits
- 11% Stronger Than OEM - Superior tensile strength handles performance engines and high-torque applications
- Extended Chain Life - Heat-treated components resist stretch and wear for longer service intervals
- Direct OEM Replacement - Drop-in installation using stock procedures with no modifications required
- Precision Manufactured - Tight tolerances ensure smooth operation and consistent power transfer
- Reduced Maintenance - Enhanced durability means fewer adjustments and extended replacement cycles
- Proven Performance - Trusted by builders working on classic Softails and performance builds
Why Upgrade?
Original equipment primary chains on Evolution and early Twin Cam Softails were engineered for stock power levels and often show stretch after years of use or when subjected to performance modifications. The S&S Heavy-Duty Primary Chain is built to handle the increased stress from big-bore kits, performance cams, and high-compression builds common in the custom Softail scene. This upgrade eliminates the noise, slop, and premature wear that plague aging factory chains, providing peace of mind whether you're cruising or pushing your motor to its limits.
Note: Part Number 560-0446. Designed for 1984-2006 Softail models with Evolution (Evo) and Twin Cam engines. Does not fit 2007+ models. Professional installation recommended for proper primary service and chain tensioning.
Fitment
| 2006 | Harley-Davidson | FLSTI Heritage Softail | - | - |
| 2006 | Harley-Davidson | FLSTFSE2 Screamin Eagle Fat Boy | - | - |
| 2005-2006 | Harley-Davidson | FLSTFSE Screamin Eagle Fat Boy | - | - |
| 2005-2006 | Harley-Davidson | FLSTN Softail Deluxe | - | - |
| 2005-2006 | Harley-Davidson | FLSTNI Softail Deluxe | - | - |
| 2005-2006 | Harley-Davidson | FLSTSC Softail Springer Classic | - | - |
| 2005-2006 | Harley-Davidson | FLSTSCI Softail Springer Classic | - | - |
| 2004 | Harley-Davidson | FXSTDSE2 Screamin Eagle Softail Deuce 2 | - | - |
| 2003-2004 | Harley-Davidson | FXSTDSE Screamin Eagle Softail Deuce | - | - |
| 2001-2006 | Harley-Davidson | FXSTDI Softail Deuce | - | - |
| 2001-2006 | Harley-Davidson | FLSTCI Heritage Softail Classic | - | - |
| 2001-2006 | Harley-Davidson | FXSTI Softail Standard | - | - |
| 2001-2006 | Harley-Davidson | FXSTSI Springer Softail | - | - |
| 2001-2006 | Harley-Davidson | FXSTBI Night Train | - | - |
| 2001-2006 | Harley-Davidson | FLSTFI Fat Boy | - | - |
| 2001-2003 | Harley-Davidson | FLSTSI Heritage Springer | - | - |
| 2000-2006 | Harley-Davidson | FXSTD Softail Deuce | - | - |
| 1999-2006 | Harley-Davidson | FXSTB Night Train | - | - |
| 1997-2004 | Harley-Davidson | FLSTS Heritage Springer | - | - |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy | - | - |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special | - | - |
| 1993 | Harley-Davidson | FLSTN Heritage Softail Nostalgia | - | - |
| 1990-2006 | Harley-Davidson | FLSTF Fat Boy | - | - |
| 1988-2006 | Harley-Davidson | FLSTC Heritage Softail Classic | - | - |
| 1988-2006 | Harley-Davidson | FXSTS Springer Softail | - | - |
| 1986-1999 | Harley-Davidson | FXSTC Softail Custom | - | - |
| 1986-1990, 2006 | Harley-Davidson | FLST Heritage Softail | - | - |
| 1986-1987 | Harley-Davidson | Softail Heritage Classic FLSTC | - | - |
| 1984-2006 | Harley-Davidson | FXST Softail Standard | - | - |
| MPN | 560-0467 |