Restore ultra-smooth cutting performance and maximum power transfer to your chainsaw with the Genuine OEM STIHL .325" 9-Tooth Rim Sprocket Kit (Part #1128 007 1011). Designed as a floating rim drive system, it allows the saw chain to float and self-align naturally with the guide bar groove—dramatically reducing wear, vibration, and chain strain. This complete direct-fit replacement kit contains all key mounting hardware for a quick drive line overhaul.
Why Choose Genuine OEM over Aftermarket? Professional-grade high-torque powerheads exert severe rotational force on drive components. Cheap aftermarket rim kits often use soft steel rims that groove prematurely, out-of-spec drums, and sub-standard E-clips that risk sudden failure under heavy cutting stress. STIHL OEM assemblies ensure exact dynamic balance, precise bearing tolerances, and commercial-grade durability.
What's Included
- (1) Heavy-Duty Clutch Drum
- (1) Replaceable .325" 9-Tooth Rim Sprocket
- (1) Precision Clutch Washer
- (1) Factory E-Clip Retaining Ring
Key Features
- 100% Genuine OEM STIHL Quality: Engineered from high-density, heat-treated structural steel alloys to withstand high RPMs and heavy loads.
- High-Speed .325" 9-Tooth Configuration: The 9-tooth rim profile increases chain speed for rapid bore cutting, limbing, and fast cross-cutting performance.
- Self-Aligning Floating Rim: Floating rim design keeps drive links meshing centered in the bar slot, extending both chain and guide bar lifespan.
- Cost-Effective Maintenance: Allows you to replace only the outer rim sprocket during routine servicing rather than replacing the entire drum unit.
- Complete Direct-Fit Kit: Includes the essential mounting washer and clip hardware required for a fast, hassle-free installation.
Product Specifications & Compatibility
| Brand / Tier | STIHL® Genuine OEM Component Kit |
| Part Number / SKU | 1128 007 1011 (1128-007-1011 / 11280071011) |
| Chain Pitch / Teeth | .325" Pitch | 9-Tooth (9T) Rim |
| System Design | Replaceable Floating Rim Sprocket & Clutch Drum System |
| Kit Contents | Clutch Drum, Rim Sprocket, Clutch Washer, E-Clip |
| Verified Compatible Models | • 044 Series: 044 R • 046 Series: 046 Magnum, 046 Magnum R • MS 361 Series: MS 361, MS 361 C-B • MS 362 Series: MS 362, MS 362-R, MS 362 C-M, MS 362 C-M R, MS 362-VW • MS 440 Series: MS 440 Magnum, MS 440-R Magnum, MS 440-VW Magnum Arctic • MS 441 Series: MS 441, MS 441-R, MS 441-VW • MS 460 Series: MS 460 Magnum, MS 460-R Magnum, MS 460-VW Magnum Arctic |
| Note | Needle bearing sold separately. Always inspect bearing during drive overhaul. |