Marine Engine Oil 25W-40 4-Stroke Quart | Sierra 18-9400-2
Marine Engine Oil 25W-40 4-Stroke Quart | Sierra 18-9400-2
Sierra
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Marine Engine Oil 25W-40 4-Stroke Quart | Sierra 18-9400-2
Marine Engine Oil 25W-40 4-Stroke Quart | Sierra 18-9400-2
Sierra's Premium Blend engine oil is specially formulated to meet the needs of inboard & stern drive marine engines.
- Sierra premium blend inboard engine oil
- SAE 25W-40
- 1 quart bottle
- Recommended for use with inboard and sterndrive engines
- Developed specifically for the marine environment and the high running stresses marine engines encounter
- Outperforms standard 4 cycle automotive engine oils
- Protects internal engine components from rust, corrosion, and from sticking piston rings
- Premium blend features high detergency, anti-oxidants, and antiwear proprties
- Excellent low temperature operating properties
- Meets or exceeds quality performance API, SJ, CF-4, and CH-4
- Ideal for use in Mercruiser, OMC and Volvo Penta engines
- NMMA FC-W certified
- Replaces Mercruiser 92-802837Q1, 92-858048Q01, 92-8M0078627
- Replaces Yamaha LUB-20W40-FC-12
- Replaces Bel-Ray 99730-BT1
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.