Makita SPROCKET COVER ASSY UC4020A/3 - 135249-4

135249-4 supersedes older part numbers: 154761-5

Original Makita part 135249-4 — Sprocket cover complete with chain-tensioning components. Direct replacement for the chain drive housing on Makita electric chainsaws; it’s the full cover assembly that secures over the drive sprocket and incorporates the tensioner parts for proper chain adjustment.

Fits Makita UC3020A (guide bar 300 mm), UC3520A (350 mm) and UC4020A (400 mm). Use this if your original sprocket cover is cracked, missing or the tensioner assembly has failed — it replaces the factory cover and installs on the original mounting points.

Jump straight to the Makita spare parts diagrams:

• Makita UC3020A Parts
• Makita UC3520A Parts
• Makita UC4020A Parts

Browse our full range of Makita chainsaw parts.