Restore ultra-smooth cutting performance and maximum power transfer to your chainsaw with the Genuine OEM STIHL 3/8" 7-Tooth Rim Sprocket Kit (Part #1128 007 1000). 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 fast 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 3/8" 7-Tooth Rim Sprocket
- (1) Precision Clutch Washer
- (1) Factory E-Clip Retaining Ring
Key Features
- 100% Genuine OEM STIHL Quality: Precision-machined, heat-treated steel components for maximum longevity under severe commercial loads.
- 3/8" Pitch, 7-Tooth Configuration: Calibrated for optimal chain speed, high pulling torque, and clean chip clearance in dense hardwoods.
- Self-Aligning Floating Rim: Floating rim design keeps drive links centered in the bar slot, extending both chain and guide bar lifespan.
- Economical Maintenance: Allows you to replace only the outer rim sprocket during routine servicing rather than replacing the entire drum unit.
- Complete Replacement Hardware: Includes required drive line washer and retaining clip to ensure a fast, reliable installation.
Product Specifications & Compatibility
| Brand / Tier | STIHL® Genuine OEM Component Kit |
| Part Number / SKU | 1128 007 1000 (1128-007-1000 / 11280071000) |
| Chain Pitch / Teeth | 3/8" Standard 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 | • 044 Series: 044 R • 046 Series: 046 Magnum, 046 Magnum R • MS 341 Series: MS 341 • 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 C-M, MS 441 C-M R, MS 441-VW • MS 460 Series: MS 460 Magnum, MS 460-R Magnum, MS 460-VW Magnum Arctic • MS 462 Series: MS 462, MS 462-R, MS 462 C-M, MS 462 C-M R, MS 462 C-M R Rescue |
| Note | Needle bearing sold separately. Always inspect bearing during drive overhaul. |