# 955989 O-Ring | Genuine Volvo Penta Part ## 🔧 Product Description Genuine Volvo Penta o-ring supplied in the gasket kit and available separately under this number, listed for 361 applications across the MD, D, TD, AQ, AQD and TMD families - the widest fitment of any o-ring in this group. It supersedes 833278, which was catalogued earlier as a thermostat housing, so on older engines the seal alone now covers what was once ordered as a housing. ## 🚤 Compatibility - **Engine Family:** MD, D, TD, AQ, AQD, TMD, AD, TAMD, AQAD, TSK, BB, MS, B, IPS, DP, SP, DPX, HS, S, PJX, PT, MB, KAD, KAMD - **HP Range:** 75-480 HP Full model list at the end of this description. ## ⚙️ Key Features - Included in the gasket kit - Supersedes 833278, previously catalogued as a thermostat housing - 361 applications across six engine families - Available as a single ring - Quantity varies by assembly, most commonly one ## 📋 Kit Contents - Included in gasket kit. ## 🔌 Function Seals the joint between two faces, squeezed into its groove to hold coolant or oil in. ## ⚠️ Common Signs of Failure - Coolant or oil weeping at the joint - Ring hardened, flattened or gone shiny - Nicks or splits from assembly damage - Swelling or softening from the wrong fluid - Slow coolant loss with no obvious drip ## 🛠️ Service Notes - Because 833278 was a housing rather than a seal, an order raised against the old number may leave you short of the housing itself - check what is actually damaged ## 🔄 Supersession & Cross Reference ### OEM Supersession Chain - 955989 → Supersedes 833278 ### OEM / Related Numbers - 833278 earlier number superseded by this part ### Aftermarket / Verified Equivalents - SLP: OR-989 ## 📦 Condition - Genuine Volvo Penta part - Brand new - Supplied in original or equivalent packaging ## 🔎 Full Model Compatibility Typically suits: - Volvo Penta 2003, 2003R, 2003R SOLAS, 100S, 110S, 120S, 120S-B, 740B, 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q, 500A, 501A, 501B, 570A, 572A, 740A, 430A, 430B, 431A, 431B, 432A, 434A, 2003TB, 2003TB SOLAS, 230A, 230B, 231LB, 250A, 250B, 251A, 271LB, 275A, 280B, 285A, 290A, 290DP, 120SC, 120S-D, 120S-E, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 570, 500B, 500, 2002, 571A, 430, 2001R - Volvo Penta D6-330D-E, D6-370D-E, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370D-F, D6-300D-F, D6-310D-D, D6-310D-C, D6-310D-E, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-435D-D, D6-435D-E, D6-435D-F, D6-435D-C - Volvo Penta TAMD31L, TAMD31L-A, TAMD31M, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31A, TAMD31B, TAMD31D, TAMD31P-B - Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-E, DP-A, DP-A1, DP-A2, DP-B, DP-B1 - Volvo Penta TAMD41B, TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41M-A, TAMD41P-A, TAMD41P, TAMD41P-B, TAMD41A - Volvo Penta AD41P-B, AD41B, AD41D, AD41L-A, AD41P-A, AD41, AD41A, AD41BJ - Volvo Penta D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F - Volvo Penta Shield, Shield for 290, Shield for 740A, Shield for DP, Shield for DPX, Shield for SP, Shield with by-pass, Shield with power trim - Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31L-A, AD31P-A, AD31XD - Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B - Volvo Penta IPS-A, IPS-B, IPS-F, IPS-C, IPS-D, IPS-E - Volvo Penta SP-C, SP-E, SP-A2, SP-C1, SP-A, SP-A1 - Volvo Penta AQ225D, AQ225E, AQ225B, AQ225C, AQ225F - Volvo Penta AQD70B, AQD70BL, AQD70CL, AQD70D, AQD70C - Volvo Penta B230, B230E, B230F, B230FB, B230FX - Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B - Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D - Volvo Penta AQ200D, AQ200C, AQ200B, AQ200F - Volvo Penta AQ271A, AQ271C, AQ271B, AQ271D - Volvo Penta BB225A, BB225AV, BB225B, BB225C - Volvo Penta D41, D41B, D41D, D41L-A - Volvo Penta TAMD70B, TAMD70E, TAMD70C, TAMD70D - Volvo Penta TMD31A, TMD31B, TMD31D, TMD31L-A - Volvo Penta TMD41A, TMD41B, TMD41D, TMD41L-A - Volvo Penta TSK DP-G, TSK DP-S, TSK DPX-A, TSK DPX-C - Volvo Penta AQ151A, AQ151B, AQ151C - Volvo Penta AQ170B, AQ170C, AQ170A - Volvo Penta BB115A, BB115B, BB115C - Volvo Penta BB170B, BB170C, BB170A - Volvo Penta BB260AV, BB260B, BB260C - Volvo Penta DPX-R, DPX-S1, DPX - Volvo Penta MB20A, MB20B, MB20C - Volvo Penta MD5A, MD5B, MD5C - Volvo Penta MS2B-A, MS2B, MS2V - Volvo Penta PJX-C, PJX-C1, PJX-S - Volvo Penta TAMD72A, TAMD72P-A, TAMD72WJ-A - Volvo Penta TMD40A, TMD40B, TMD40C - Volvo Penta AQ115A, AQ115B - Volvo Penta AQ125B, AQ125A - Volvo Penta AQ145B, AQ145A - Volvo Penta AQ171A, AQ171C - Volvo Penta AQ205LB, AQ205A - Volvo Penta AQ231A, AQ231B - Volvo Penta AQ255A, AQ255B - Volvo Penta AQ260A, AQ260B - Volvo Penta AQ311A, AQ311B - Volvo Penta AQAD40B, AQAD40A - Volvo Penta AQD21A, AQD21B - Volvo Penta IPS10-A, IPS10-B - Volvo Penta KAD42A, KAD42B - Volvo Penta KAMD42A, KAMD42B - Volvo Penta MD11C, MD11D - Volvo Penta MD17C, MD17D - Volvo Penta MD2010-C, MD2010-D - Volvo Penta MD2020-C, MD2020-D - Volvo Penta MD2030-C, MD2030-D - Volvo Penta MD2040-C, MD2040-D - Volvo Penta MD21B, MD21A - Volvo Penta MD22, MD22A - Volvo Penta MD6A, MD6B - Volvo Penta MD7B, MD7A - Volvo Penta MD70B, MD70C - Volvo Penta MS3B, MS3C - Volvo Penta MS4B, MS4A - Volvo Penta MS5A, MS5B - Volvo Penta TAMD40A, TAMD40B - Volvo Penta TAMD63L-A, TAMD63P-A - Volvo Penta TAMD71B, TAMD71A - Volvo Penta TAMD73P-A, TAMD73WJ-A - Volvo Penta TMD70C, TMD70B - Volvo Penta AD30A - Volvo Penta AD40B - Volvo Penta AQ120B - Volvo Penta AQ140A - Volvo Penta AQ165A - Volvo Penta AQ175A - Volvo Penta AQ190A - Volvo Penta AQ211A - Volvo Penta AQ240A - Volvo Penta AQ290A - Volvo Penta AQAD30A - Volvo Penta AQD2B - Volvo Penta AQD40A - Volvo Penta B20 - Volvo Penta BB140A - Volvo Penta BB145A - Volvo Penta BB165A - Volvo Penta BB231A - Volvo Penta BB261A - Volvo Penta BB740A - Volvo Penta D2-75B - Volvo Penta D2002AG - Volvo Penta D2003AG - Volvo Penta D70CHC - Volvo Penta HS1A - Volvo Penta MD1B - Volvo Penta MD2B - Volvo Penta MD3B - Volvo Penta MD30A - Volvo Penta MD31A - Volvo Penta MD40A - Volvo Penta MD67C - Volvo Penta PT93 - Volvo Penta TAMD30A - Volvo Penta TAMD42B - Volvo Penta TAMD61A - Volvo Penta TAMD62A - Volvo Penta TAMD75P-A - Volvo Penta TD70CHC - Volvo Penta TMD22A - Volvo Penta TMD30A ## Details - **Price:** 1.57 AUD - **Vendor:** Volvo Penta - **Type:** Gaskets & Seals - **Tags:** Volvo Penta ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1.57 AUD | In stock | ## Images - 955989 O-Ring | Genuine Volvo Penta Part - 955989 O-Ring | Genuine Volvo Penta Part - photo 2 of 2 --- > Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/955989-o-ring-genuine-volvo-penta) > Updated: 2026-09-18