Full Synthetic Marine Gear Lube Quart | Sierra 18-9680-2
Full Synthetic Marine Gear Lube Quart | Sierra 18-9680-2
Sierra
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Full Synthetic Marine Gear Lube Quart | Sierra 18-9680-2
Sierra Full Synthetic Marine Gear Lube Quart |18-9680-2
Sierra's full synthetic lower unit gear lube optimizes gear life by reducing friction while providing wear protection in severe operating conditions.
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- Sierra full synthetic gear lube
- Engineered to protect gears, bearings, and internal gearcase components of outboards and stern drives under high load operating conditions
- Formulated for use in freshwater or saltwater marine applications
- Unique lubricant is shear stable and resists oxidation to ensure high performance over a wide range of ambient operating temperatures
- 1 quart bottle
- 75W-90 weight
- API GL-5 / MIL-L-210E
- Gold color
- Optional gear lube pump P/N 18-9781 – sold separately
- Replaces Volvo Penta 1141679
- Replaces Bel-Ray 99741-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.