Sprockets & Clutch · SKU B0CN6N5P46

MS391 Chainsaw 3/8" -7T Spur Clutch Drum Sprocket Bearing 5pcs Kit

Name: MS391 Chainsaw 3/8" -7T Spur Clutch Drum Sprocket Bearing 5pcs Kit
Brand: YUTACOREX
SKU: B0CN6N5P46

$18 Amazon rating ★ 3.9

MS391 Chainsaw 3/8" -7T Spur Clutch Drum Sprocket Bearing 5pcs Kit for Stihl MS391 MS311 Replacement Parts with Needle Bearing Clutch Washer E-Clip

Bar length8"

Pitch3/8"

CategorySprockets & Clutch

Part numberB0CN6N5P46

ConditionNew — aftermarket replacement

What the listing states

Listed as compatible with: Stihl MS391 MS311 Replacement Parts with Needle Bearing Clutch Washer E-Clip

From our Amazon listing, checked September 25, 2026. Model and part-number matches are the seller's; confirm against the part on your machine.

Compatibility

The seller's listing names these models as compatible. Always confirm the model number stamped on your machine before ordering.

✓Stihl MS391 MS311 Replacement Parts with Needle Bearing Clutch Washer E-Clip

Not sure which part you need? See our guide: How to measure your bar or How to read the stamp on your guide bar.

Before you buy — how to verify fitment

Locate the part number on your current part or in your equipment manual.
Compare specifications in the table above with your current part.
Check the compatibility list for your exact equipment model.

Frequently asked questions

How do I know my sprocket needs replacing?

Look for hooked or worn teeth, visible grooves where the chain rides, or a chain that derails frequently. A worn sprocket accelerates chain and bar wear.

Do I need to replace the clutch drum with the sprocket?

Inspect the drum bearing surface. If it spins freely with no play, the drum is fine. If the bearing feels rough or the drum is scored, replace both together.