Volvo Penta Transmission Oil 11 Synthetic 75W-90 GL-5 1141679 | 1 Qt
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Volvo Penta Transmission Oil 11 Synthetic — Part #1141679
Genuine Volvo Penta fully synthetic SAE 75W-90 API GL-5 gear oil — the factory-specified lubricant for many late-model Volvo Penta sterndrive and drive applications. The full-synthetic formulation provides superior protection across a wider temperature range than conventional gear oil, with better resistance to shear breakdown under sustained high-load operation.
Part Details
- Part Number: 1141679
- Alternate / Superseded References: 1141679-1, 3810106, 3851128, 3851128-1
- Brand: Volvo Penta OEM
- Official Product Name: Transmission Oil 11
- Viscosity: SAE 75W-90
- Specification: API GL-5
- Base: Fully Synthetic
- Size: 1 quart (946 mL)
- System: Sterndrive Gear / Transmission Lubrication System
Compatible Applications
- Volvo Penta SX sterndrive (where Transmission Oil 11 is specified)
- Volvo Penta DP-S sterndrive
- Volvo Penta XDP sterndrive
- Volvo Penta DPX sterndrive
- Volvo Penta IPS (Inboard Performance System) drive
- Other late-model Volvo Penta drives and transmissions where Transmission Oil 11 / 75W-90 GL-5 synthetic is specified
- Always confirm the required oil type in your Volvo Penta service manual or by drive serial number before filling — Volvo Penta drive oil requirements vary by model generation and some drives require a different specification
What This Product Does
Transmission Oil 11 lubricates and protects the gears, bearings, and clutch components inside compatible Volvo Penta sterndrive and IPS drive housings. The GL-5 extreme-pressure additive package protects hypoid and spiral bevel gears under high-load conditions. The full-synthetic base provides better low-temperature flow, higher-temperature stability, and longer service life compared to conventional 80W-90 petroleum gear oil.
Related Products
- Volvo Penta Transmission Oil 80W-90 GL-5 1141676 — 1 Qt (for older AQ/DuoProp drives)
- Volvo Penta Transmission Oil 1141681
- Volvo Penta Lower Gear Housing O-Ring SX-A DPS 3889786
- Volvo Penta DuoProp Propeller Shaft Sealing Ring 853807
- Volvo Penta Seal 3852272
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 Transmission Oil 11 or a different Volvo Penta oil?
A: Check the Volvo Penta service manual for your specific drive model and serial number. Late-model SX, DP-S, XDP, DPX, and IPS drives commonly specify Transmission Oil 11 (75W-90 GL-5 synthetic). Older AQ-series and early DuoProp drives typically use the conventional 80W-90 GL-5 Transmission Oil 1141676.
Q: Can I use a generic 75W-90 GL-5 synthetic instead of the Volvo Penta branded oil?
A: Volvo Penta recommends using their specified lubricant to ensure compatibility with seals, cone clutches, and gear materials in their drives. Some aftermarket 75W-90 GL-5 oils may contain friction modifiers that can affect cone-clutch performance. Using the OEM-specified product is the safest choice.
Q: My oil looks milky after draining — what does that mean?
A: Milky or grey gear oil indicates water contamination, most commonly from a failed seal or bellows. Inspect and replace the affected seals before refilling. Refilling without addressing the water source will cause rapid gear and bearing damage.
Parts Desk Insights
Best use case: This is the correct oil for annual drive service on late-model Volvo Penta SX, DP-S, XDP, DPX, and IPS drives. If you’re doing a full drive service — oil change, bellows inspection, and seal check — this is the oil to have on hand for those applications.
Common issues we see: Customers sometimes confuse this product with the conventional 80W-90 petroleum oil used in older drives. The two are not interchangeable — always confirm by drive model and serial number. We also see questions about the multiple superseded part numbers (3810106, 3851128, 3851128-1) — these all cross to 1141679, which is the current active part number.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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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.
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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:
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