Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)
Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

Vendor: JLM Marine
Availability: In Stock
$12.99
$15.00
$12.99
Subtotal: $12.99

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Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

$15.00 $12.99
Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

$15.00 $12.99
Descripción

Lower Unit Gear Oil Pump – Fits Most Marine Outboard Motors (Multiple Adapters)

This lower unit gear oil pump is designed to fit standard quart bottles with 28mm openings and works with most marine outboard motors, excluding Volvo Penta. It includes multiple adapters to provide compatibility across a wide range of popular outboard brands.

Direct Replacements: Similar to Slippery Pete Lower Unit Gear Oil Pump, RETEPIF Lower Unit Gear Oil Pump, Bentolin Lower Unit Gear Oil Pump

  • Adapters included: 3/8" swivel, 8mm, and 10mm metal adapters
  • Compatible with: Most outboard motors from Mercury, Yamaha, Nissan, Tohatsu, Honda, Johnson/Evinrude
  • Installation: Direct thread onto standard quart bottles (28mm opening)

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number Superseded By Notes
Mercury/Mariner 3/8" swivel adapter compatibility
Yamaha 10mm-1.25 male adapter compatibility
Nissan 10mm-1.25 male adapter compatibility
Tohatsu 10mm-1.25 male adapter compatibility
Honda 8mm-1.25 male adapter compatibility
Johnson/Evinrude 8mm-1.25 male adapter compatibility
Volvo Penta Not compatible

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson Serial Number Guide.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury/Mariner Most outboard models Various 2-Stroke & 4-Stroke All N/A 3/8" swivel adapter compatibility
Yamaha Most outboard models Various 2-Stroke & 4-Stroke All N/A 10mm-1.25 male adapter compatibility
Nissan Most outboard models Various 2-Stroke & 4-Stroke All N/A 10mm-1.25 male adapter compatibility
Tohatsu Most outboard models Various 2-Stroke & 4-Stroke All N/A 10mm-1.25 male adapter compatibility
Honda Most outboard models Various 2-Stroke & 4-Stroke All N/A 8mm-1.25 male adapter compatibility
Johnson/Evinrude Most outboard models Various 2-Stroke & 4-Stroke All N/A 8mm-1.25 male adapter compatibility
Volvo Penta All models N/A N/A N/A N/A Not compatible

Technical Specifications

Specification Value
Product Type Lower Unit Gear Oil Pump
Installation Direct thread onto standard quart bottles (28mm opening)
Connection Multiple adapters: 3/8 inch metal swivel, 8mm and 10mm metal adapters
Housing Material Plastic and aluminum
Flow Rate 8-10cc per pump stroke
Compatibility Most marine outboard motors (not compatible with Volvo Penta)
Included Adapters 3/8" swivel adapter, 8mm male adapter, 10mm male adapter
Hose Type Flexible discharge hose
Bottle Compatibility Standard quart bottles with 28mm openings
Application Lower unit gear oil refilling

Package Contents

  • 1 x Lower Unit Gear Oil Pump
  • 1 x 3/8" Metal Swivel Adapter
  • 1 x 8mm Metal Adapter
  • 1 x 10mm Metal Adapter
  • 1 x Short Suction Tube
  • 1 x Long Suction Tube
  • 1 x Flexible Discharge Hose

Installation Guide

  1. Drain old oil from your lower unit by removing both drain plugs (upper and lower).
  2. Attach the appropriate adapter to the pump based on your engine brand.
  3. Screw the pump assembly onto a standard quart bottle of gear oil.
  4. Insert the adapter into the lower drain hole of your engine.
  5. Pump oil into the lower unit until it begins to flow out of the upper vent hole.
  6. Quickly replace the upper vent plug, then remove the pump and replace the lower drain plug.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?
Check the compatible engine models table for brand and model fitment. Use the provided brand-specific serial number guides to verify your engine details before purchase.

Q: How often should I replace the gear oil pump?
Replacement is generally needed when the pump shows signs of wear or leaks. Regular inspection during maintenance is recommended.

Q: Can I use this pump with Volvo Penta engines?
No, this pump is not compatible with Volvo Penta models.

Q: How does this aftermarket pump compare to OEM?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Envío

Podemos enviar a prácticamente cualquier dirección del mundo con envío gratuito disponible para la mayoría de las regiones.

Para nuestros clientes típicos de EE. UU. y Canadá , nuestros plazos de envío son los siguientes:

  • Amazon FBA : los pedidos se entregarán dentro de 1-5 días hábiles después de realizar el pedido (durante ciertos períodos especiales como promociones importantes, Navidad, etc., el tiempo de entrega de Amazon FBA puede verse afectado).
  • Envío al almacén de EE. UU .: los pedidos se entregarán dentro de los 7 días posteriores a la realización del pedido.
  • Envío al almacén de China : los pedidos se entregarán aproximadamente 12 días después de realizar el pedido.

Al realizar un pedido, estimaremos las fechas de envío y entrega según la disponibilidad de sus artículos y las opciones de envío que elija. Dependiendo del proveedor de envío que elija, las fechas de envío estimadas podrían aparecer en la página de presupuestos de envío.

Tenga en cuenta también que las tarifas de envío de muchos de los artículos que vendemos se basan en el peso. Puede consultar el peso de cada artículo en su página de detalles. Para reflejar las políticas de las empresas de envío que utilizamos, todos los pesos se redondearán a la libra superior.

Acerca de JLM Marine

Fundada en 2002, JLM Marine se ha consolidado como un fabricante dedicado de piezas marinas de alta calidad, con sede en China. Nuestro compromiso con la excelencia en la fabricación nos ha ganado la confianza de las principales marcas marinas a nivel mundial.

Como proveedor directo, evitamos intermediarios, lo que nos permite ofrecer precios competitivos sin comprometer la calidad. Este enfoque no solo promueve la rentabilidad, sino que también garantiza que nuestros clientes reciban el mejor valor directamente del proveedor.

Estamos entusiasmados de ampliar nuestro alcance a través de canales minoristas, llevando nuestra experiencia y compromiso con la calidad directamente a los propietarios de embarcaciones y entusiastas de todo el mundo.

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