Stihl .325" Pitch - 7 Tooth Small Hole Rim Sprocket

Enhance the cutting speed and smoothness of your mid-range chainsaw with the STIHL .325" 8-Tooth Rim Sprocket (Small Hole). This genuine replacement part (0000 642 1234) is designed for saws equipped with the "Small" splined clutch drum system. Unlike a standard spur sprocket, this floating rim design slides along the splines to keep the chain perfectly centered with the guide bar groove, significantly reducing vibration and extending the life of your cutting equipment.

The 8-tooth configuration is a popular choice for operators looking to increase chain speed on high-performance saws like the MS 261 or MS 251. By providing a larger diameter than the standard 7-tooth rim, this sprocket allows the chain to move faster through the wood, making it ideal for limbing and light felling tasks. Because the rim is a separate wear component, you can replace it easily without the cost and labor of swapping the entire clutch drum assembly.

Fitment Note: This sprocket features the "Small" spline (SM) center hole. It is compatible with a wide range of STIHL's most popular homeowner, farm, and professional saws using .325" pitch chain.

Key Features & Benefits

• Increased Chain Speed: 8-tooth design offers higher RPMs at the chain for faster cutting in softer woods and limbing.
• Floating Rim Technology: Automatically aligns the chain with the bar for reduced friction and heat buildup.
• Small Spline (SM) Fitment: Engineered specifically for STIHL’s mid-size clutch drum systems.
• Cost-Effective Maintenance: Replace only the rim instead of the entire drum when the drive teeth become worn.
• Genuine STIHL Engineering: Constructed from hardened, high-wear steel for professional-grade durability.

Technical Specifications & Fitment