Volvo Penta Transmission Oil 80W-90 GL-5 1141676 | 1 Qt Gear Lube
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Volvo Penta Transmission Oil 80W-90 GL-5 — Part #1141676
Genuine Volvo Penta SAE 80W-90 API GL-5 petroleum gear oil for compatible older sterndrive and transmission applications. Formulated to protect drive and transmission gears under load, resist high-temperature breakdown, and provide corrosion protection in the demanding marine drivetrain environment.
Part Details
- Part Number: 1141676
- Supersedes / Related References: 3855834, 38558342
- Brand: Volvo Penta OEM
- Official Product Type: Transmission / Sterndrive Gear Oil
- Viscosity: SAE 80W-90
- Specification: API GL-5
- Base: Petroleum (mineral)
- Size: 1 quart (946 mL)
- System: Sterndrive Gear / Transmission Lubrication System
Compatible Applications
- Volvo Penta AQ-series sterndrive applications specifying SAE 80W-90 GL-5 gear oil
- Volvo Penta 280DP DuoProp sterndrive
- Volvo Penta 290DP DuoProp sterndrive
- Volvo Penta 290SP sterndrive
- Volvo Penta SP-A sterndrive
- Volvo Penta SP-A1 sterndrive
- Volvo Penta DP-A sterndrive
- Other older Volvo Penta single-prop and DuoProp drives where SAE 80W-90 GL-5 is specified
- Always confirm the required oil type in your Volvo Penta service manual or by drive serial number before filling — some drives require a different lubricant specification
What This Product Does
The transmission oil lubricates and protects the gears, bearings, and clutch components inside the sterndrive or transmission housing. The GL-5 rating indicates the oil contains extreme-pressure additives that protect hypoid and spiral bevel gears under high-load conditions. Using the correct viscosity and specification prevents premature gear wear, overheating, and corrosion inside the drive housing.
Related Products
- Volvo Penta Transmission Oil 75W-90 GL-5 Synthetic 1141679
- Volvo Penta Transmission Oil 1141681
- Volvo Penta Lower Gear Housing O-Ring SX-A DPS 3889786
- Volvo Penta DuoProp Propeller Shaft Sealing Ring 853807
Service Interval
Replace drive or transmission oil at the interval specified in your Volvo Penta service manual — typically every 100 hours or annually, whichever comes first. Also replace immediately if the oil appears milky or discoloured (indicating water intrusion), if metal debris is found on the magnetic drain plug, or after any major drive service involving seal replacement or disassembly.
Technical FAQ
Q: How do I know if my drive takes 80W-90 GL-5 or a different oil?
A: Check the Volvo Penta service manual for your specific drive model and serial number. Older AQ-series and early DuoProp drives commonly specify 80W-90 GL-5. Later SX and DPS drives may require a different specification — do not substitute without confirming.
Q: Can I use a synthetic 75W-90 GL-5 instead of this 80W-90 petroleum oil?
A: Some Volvo Penta drives accept synthetic GL-5 gear oil, but the service manual for your specific drive is the authoritative reference. If your manual specifies 80W-90 petroleum, use this product. If synthetic is approved, see our Volvo Penta Synthetic 75W-90 GL-5 Transmission Oil 1141679.
Q: My oil looks milky after draining — what does that mean?
A: Milky or grey-coloured gear oil indicates water contamination, most commonly from a failed seal or bellows. Before refilling, inspect and replace the affected seals. Refilling with fresh oil without addressing the source of water intrusion will result in rapid gear and bearing damage.
Parts Desk Insights
Best use case: This is the correct oil for annual drive service on older Volvo Penta AQ-series and early DuoProp sterndrive applications. It’s a straightforward fill for owners doing their own seasonal maintenance on these drive families.
Common issues we see: The most common problem is customers selecting gear oil by viscosity alone without confirming the drive model. Volvo Penta has used different oil specifications across drive generations — some later drives require a specific synthetic or a different GL rating. Always confirm by drive serial number or service manual before ordering. We also see customers unsure whether 1141676 or the superseded numbers (3855834 / 38558342) are the same product — they are; 1141676 is the current part number.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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