Stihl 9643 950 1160 Oil Seal, 12x16x3 Type_Bolt Cover 1 and EN 357 -

1 and EN 357 - meaning it meets both OSHA CFR1910 and ANSI Z133 requirements

the Stop Buffer reduces stress on surrounding parts

The next generation ISC Rigging Pulleys are up to 150% stronger than the equivalent ISC standard Rigging Pulley models

it generally stays sharp longer than full-chisel options during typical use and is easier to maintain and sharpen

Stihl 9643 950 1160 Oil Seal, 12x16x3 Type_Bolt Cover 1 and EN 357 -The Sealing Ring 12x16x3 is a Genuine Stihl part essential for ensuring tight, leak free joints in Stihl chainsaws, specifically models 028 and 045. Crafted from durable, engine grade sealing material, this sealing ring is engineered to withstand heat, vibration, and exposure to oil and fuel, making it a reliable choice for your chainsaw maintenance needs. Designed for applications requiring a precise 12 mm internal diameter seal, the Sealing Ring