Equip your high-displacement chainsaw for extreme-duty cutting and heavy timber processing with the Genuine OEM STIHL .404" 7-Tooth Rim Sprocket Kit (Part #1122 007 1002). Designed specifically for heavy .404" pitch chain setups, this floating rim drive system allows the chain to float and self-align naturally with the guide bar groove—dramatically reducing friction, bar wear, and chain stress under massive load. This complete direct-fit replacement kit contains all key hardware for a fast drive line overhaul.
Why Choose Genuine OEM over Aftermarket? High-torque 80cc to 90cc+ forestry saws running heavy .404" cutting systems subject drive components to immense rotational force. Cheap aftermarket rim kits frequently feature soft metal rims that groove rapidly, out-of-spec drums, and weak retaining clips that risk sudden failure during severe felling or bucking. STIHL OEM assemblies guarantee exact dynamic balance, precise bearing tolerances, and maximum operational safety.
What's Included
- (1) Heavy-Duty Clutch Drum
- (1) Replaceable .404" 7-Tooth Rim Sprocket
- (1) Precision Clutch Washer
- (1) Factory E-Clip Retaining Ring
Key Features
- 100% Genuine OEM STIHL Quality: Built from high-density, heat-treated structural steel alloys engineered to withstand severe commercial timber harvesting conditions.
- Heavy-Duty .404" Pitch 7-Tooth Profile: Calibrated specifically to handle the larger drive links and extreme pulling torque of professional .404" chain systems.
- Self-Aligning Floating Rim: Keeps heavy chain drive links centered in the bar slot, extending both guide bar and chain service life while smoothing out operation.
- Cost-Effective Maintenance: Allows you to replace only the worn outer .404" rim sprocket during routine servicing rather than replacing the entire drum assembly.
- Complete Direct-Fit Kit: Includes the required drive line washer and retaining clip to ensure a fast, hassle-free installation.
Product Specifications & Compatibility
| Brand / Tier | STIHL® Genuine OEM Component Kit |
| Part Number / SKU | 1122 007 1002 (1122-007-1002 / 11220071002) |
| Chain Pitch / Teeth | .404" Heavy-Duty Pitch | 7-Tooth (7T) Rim |
| System Design | Replaceable Floating Rim Sprocket & Clutch Drum System |
| Kit Contents | Clutch Drum, Rim Sprocket, Clutch Washer, E-Clip |
| Verified Compatible Models | • 064 Series: 064, 064 R, 064 RW • 066 Series: 066 M, 066 MR • MS 650 Series: MS 650 Magnum, MS 650-R Magnum • MS 660 Series: MS 660 Magnum, MS 660-R Magnum • MS 661 Series: MS 661 Magnum, MS 661-R Magnum, MS 661 C-M Magnum, MS 661 C-M R Magnum |
| Note | Needle bearing sold separately. Always inspect bearing during drive overhaul. Ensure your bar and chain are configured for .404" pitch. |