Chainsaw Engine Cover Screw Set – MS311 & MS391 | M6x20
Chainsaw Engine Cover Screw Set – MS311 & MS391 | M6x20
Chainsaw Engine Cover Screw Set – MS311 & MS391 Compatible (Part #90223191300)
Keep your chainsaw running at its best with this precision-engineered Engine Cover Screw Set, designed as a direct OEM-spec replacement for MS311 and MS391 chainsaws. Made from durable alloy steel and plastic composite, these M6×20 screws and bar nuts are built to withstand demanding outdoor conditions — delivering a secure, rattle-free fit every time.
Whether you're doing routine maintenance or replacing worn hardware after heavy use, this kit gives you the exact parts you need — no guessing, no ill-fitting generics.
Key Features
- Precise Compatibility: Engineered specifically for MS311 and MS391 chainsaws — a direct drop-in replacement that ensures a perfect fit.
- OEM Part Numbers: Matches part numbers 90223191300 and 9022 319 1300, so you can confidently order the correct screws for your chainsaw's top engine cover.
- M6×20 Specification: Industry-standard screw size providing excellent tensile strength and longevity even in harsh, high-vibration operating environments.
- Durable Construction: Made from alloy steel and plastic — colour: silver and white — resisting corrosion, wear, and vibration over extended use.
- Improved Reliability: Replacing stripped or damaged cover screws restores smoother operation and keeps your chainsaw's engine cover firmly secured during use.
Specifications
- Material: Alloy Steel + Plastic
- Screw Size: M6×20
- Colour: Silver + White
- Compatible Models: MS311, MS391
- Part Numbers: 90223191300 / 9022 319 1300
- Country of Origin: Made in China
Package Contents
- 1 × Chainsaw Engine Cover Screw Set (bar nuts strip + screws)
Note: Actual colour may vary slightly due to monitor settings. Please allow minor measurement tolerances (±1–2 mm).
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Frequently Asked Questions
Q: Which chainsaw models are compatible with this engine cover screw set?
A: This screw set is specifically designed for the MS311 and MS391 chainsaws. The part numbers 90223191300 and 9022 319 1300 match the OEM top engine cover screws for these models, ensuring a direct, secure fit without modification.
Q: What size are the chainsaw engine cover screws included in this set?
A: The screws in this set are M6×20 in size, meeting OEM specifications for the MS311 and MS391 chainsaw top cover. This standard metric size provides the strength and thread engagement needed for reliable performance under high vibration.
Q: How do I know if my chainsaw engine cover screws need replacing?
A: Signs that your engine cover screws need replacement include a loose or rattling cover during operation, visible stripping or corrosion on the screw heads, or difficulty tightening the cover securely. Replacing worn screws with this OEM-spec set restores a firm, safe fit.