This Genuine Stihl bumper spike is an OEM steel fitting for Stihl petrol chainsaws, designed to give a firm bite into the workpiece and a stable pivot point while cutting. Made from durable steel with a protective finish, it helps guide the bar accurately, improves control in tougher timber, and reduces scuffing to the clutch cover and crankcase area. It is engineered to the correct geometry for smooth feeding into the cut and dependable alignment. Supplied under Manufacturer Part Number (MPN) 1143 664 0500, it fits popular mid-range models such as the Stihl MS 231 and MS 251, making it a practical replacement for worn or bent spikes on saws used for firewood processing, pruning, and general estate or site work.

Key Features:
– Genuine Stihl OEM part for correct fit and reliable performance
– Steel construction with protective finish for long service life
– Provides a stable pivot point to improve cutting control and accuracy
– Helps protect the saw body from wear during regular use
– Matches original hole spacing and profile for straightforward installation
– Works with existing fixings on compatible models (no modifications required)
– Suitable for both professional and DIY users seeking consistent results
– Maintains intended bar angle and chain feed for clean, predictable cuts

Typical Applications:
Useful for felling small to medium trees, logging firewood, snedding, and cutting back overgrown branches. The spike anchors the saw to the timber so you can lever the bar smoothly through the cut, keeping the kerf straight and reducing chatter. Ideal for yard, farm, landscaping, and site maintenance tasks where control and repeatability matter.

Also known as:
Bucking spike, felling dog, bumper dog, saw tooth, chain saw spike bumper, bar spike, dogs, chain saw tooth, pivot spike.

Fits Models:
MS 231, MS 231 C, MS 241 C, MS 251, MS 251 C, MS231, MS231C, MS241C, MS251, MS251C

Alternate Part Numbers:
1143-664-0500, 11436640500

Product Specifications