3891066R EFCO Screw

3891066R EFCO Screw

Part number:3891066R
SKU Number:EFC-3891066R
Warranty:1 Year
Fits Models:View Models List

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$8.84

Efco 3891066R Repair Part

Keep your machine working the way it should: 3891066R EFCO Screw is a straightforward replacement option for everyday repairs. This is the kind of maintenance move that pays off in reliability when you need it most.


A replacement part is often the smartest path especially when the rest of the equipment is still in good shape. It’s a sensible upgrade in reliability when your equipment needs a refresh. Verify compatibility with your model before ordering, then install with standard tools and get back to work with confidence.

Fits Models

This part fits 1 models:

EFCO MT-4400 ChainSaw

EFCO MT-4400 ChainSaw

View Model
Customer Reviews (2)
5 out of 5
2 reviews
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4 stars
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Alice K.
29 Jul, 2025

The part was exactly what I needed. Installation instructions were clear.

Kevin X.
26 May, 2025

Worked as expected. The 3891066R Efco Screw arrived on time and performed well. Instructions could be clearer, but overall satisfied.