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Lower Unit Gear Oil Pump, Gear Oil Pump for Standard Quart Bottle, Upgrade Gear Lube Pumps for Marine Lower Unit with 3/8" 8mm 10mm Metal Adapters, Fit Most Marine Boat Outboard Motors

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Product details

Management number 233749928 Release Date 2026/06/27 List Price US$4.80 Model Number 233749928
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Product DescriptionProduct: Lower Unit Gear Oil PumpCompatibility with: Most marine boat outboard motors, U.S.made outboards (Mercury/Mariner), foreign-made outboards (8mm-1.25, 10mm-1.25 thread), standard quart bottles (32-ounce containers, 28mm bottle openings); Not compatible with Volvo PentaSize: 8cc oil per stroke, 3/8"-16 swivel fitting, 8mm-1.25 male thread fitting, 10mm-1.25 male thread fitting, fits 28mm standard quart bottle openingsMaterial: Durable plastic, rubber pump body, galvanized reinforced steel adaptersMaterial: Natural siliconeFeatures:1. Made of durable plastic, rubber pump body and galvanized reinforced steel adapters, strong wear-resistant.2. Sealing and leak-proof, withstands repeated pressures and oil contact for extended service life.3. Delivers stable 8cc oil per stroke, enabling precise oil volume control to prevent overfilling. Protects outboard engine and ensures optimal gearbox oil levels.4. Includes 3 adapters: 3/8"-16 swivel (U.S. outboards), 8mm-1.25 & 10mm-1.25 male threads (foreign models).5. Easy installation: screw pump body onto standard quart bottle, connect matching adapter to engine oil filler port. Pump pressure transfers oil effortlessly, preventing spills and waste.6. Equipped with two rigid suction tubes to reach bottom of different height/spec gear oil bottles. Fits 32-ounce containers and standard 28mm bottle openings, zero leakage when fastened securely.Package Includes: 1 × Lower Unit Gear Oil Pump, 1 × hose, 2 × tubes, 3 × metal adapters

  • Premium Materials: This lower gear oil pump is made of durable plastic and rubber pump body with galvanized reinforced steel adapters, metal adapters are strong and wear-resistant, sealing, leak-proof and durable to withstand repeated pressures and oil contact for extended long service life.
  • High-Efficiency Performance: The lower cylinder gear oil pump delivers a stable 8cc of oil per stroke, enabling precise oil volume control to prevent overfilling. This protects the outboard engine and ensures it maintains optimal gearbox oil levels.
  • Wide Compatibility: This lower-case gear oil pump includes 3 basic adapters: 3/8"-16 swivel fitting (for U.S.made outboards like Mercury/Mariner), 8 mm-1.25 and 10 mm-1.25 male thread fittings (for foreign-made models). Note: Not compatible with Volvo Penta; verify engine compatibility before purchase.
  • Convenient Operation: This bottom-mounted gear oil pump installs simply by screwing the pump body onto a standard quart bottle. Then connect the matching adapter to the engine oil filler port, and the pump pressure effortlessly transfers oil, preventing spills and waste.
  • Ingenious Design: Equipped with two rigid suction tubes, this gear oil pump reaches the bottom of gear oil bottles of varying heights and specifications, perfectly compatible with 32-ounce containers. The pump cap fits standard 28mm bottle openings, ensuring zero leakage when securely fastened.
ASIN B0G1B56B7J
Brand winterrock
Item Weight 1 ounces
Manufacturer winterrock
Package Dimensions 0.04 x 0.04 x 0.04 inches
Manufacturer Part Number WIN15CK

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