Product Description
40375/40376/40377 Looper Set
This matched looper set (40375, 40376, 40377) gives you related looper components for overlock machines using this part number series, in one convenient order.
Fits
- Overlock sewing machines using the 40375-series looper set
Why Replace It
Replacing loopers as a matched set avoids pairing new and worn components, which can cause timing mismatches between related parts.
FAQ
Do all three parts wear at the same rate?
Not always, but replacing together as a set ensures consistent timing and avoids repeat servicing shortly after a partial fix.
