5+2PCS O-Ring Part 3855081 for Vent or Drain and Part 3852045 Dipstick Outdrive Gearlube O-Ring Replaces 955981 955974 with 311598 Nylon Washers Compatible with Volvo Penta Fuel Cap and Filler
【Compatibility and Fitment】 O ring kit compatible with Volvo Penta DuoProp drives including SX A, SX M, DPS A, and DPS B models. Covers common gear ratios such as SX A 1.43 1.51 1.60 1.79 1.89 1.97 2.18, DPS A 1.68 1.78 1.95 2.11 2.14 2.32, and DPS B 1.78 1.95 2.14 2.32. Match your drive model and ratio before ordering
【Replaces OEM Part Numbers】 Includes seals matched to the service points: Vent O ring 3855081, Drain O ring 3855081, Dipstick O ring 3852045, plus 2 pack 311598 nylon washers. Built for routine lower unit service and gear lube maintenance
【Sealing for Gear Lube Service】 Helps seal the vent screw, drain screw, and dipstick to reduce the chance of gear lube seepage and water intrusion at the service screws. Using the correct O ring for each location supports a consistent seal during scheduled maintenance
【Nitrile Rubber Material】 Made from nitrile rubber NBR for good resistance to oil and water commonly found around lower unit gear lube service. Suitable for marine environments where seals are exposed to heat, splash, and routine handling
【Simple Installation Steps】 Clean the sealing surfaces, lightly oil the O rings, place each O ring on its matching part, then reinstall and torque to the manufacturer specification. Straightforward replacement without specialized tools