Gear Oil Hand Pump – Fits Marine Outboard & Automotive Applications (28mm Thread)

Gear Oil Hand Pump – Fits Marine Outboard & Automotive Applications (28mm Thread)

This versatile fluid transfer pump is designed for standard quart bottles with a 28mm threaded cap. It provides a clean and efficient method for transferring gear oil, transmission fluid, and differential fluid in a wide range of applications, from marine outboard lower units to automotive transmissions and differentials.

This unit serves as a direct replacement for ZEELINE ZE1020 and the multipurpose Yamaha ACC-HNDPU-MP-01 pumps.

• Includes two suction tube sizes to fit standard and tall quart bottles.
• Compatible with gear oil, transmission fluid, and differential fluid up to 80W-90 viscosity.
• Installs directly by threading onto a standard 28mm bottle neck.

Part Number Cross-Reference

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

Compatible Applications

Confirm your application and bottle type in the table below.

Technical Specifications

Package Contents

Each package includes the following:

• 1 x Fluid Transfer Pump with 17-inch flexible delivery tube
• 1 x Short suction tube (6.25 inches) for standard bottles
• 1 x Long suction tube (10 inches) for tall bottles
• 1 x Third-hand adapter to secure fill tube while pumping (on some models)

Installation Guide

1. Select the appropriate suction tube (6.25" short or 10" long) based on your fluid bottle height and attach it firmly to the pump base.
2. Screw the pump assembly onto the 28mm threaded neck of the gear oil or fluid bottle until snug. Do not overtighten.
3. Insert the flexible 17-inch delivery tube into the fill port of your engine's lower unit, transmission, or differential.
4. If your model includes a third-hand adapter, clip it to a stable point to hold the delivery tube in place.
5. Begin pumping with smooth, full strokes to transfer the fluid. Each stroke delivers approximately 5-8cc of oil.
6. Monitor the fluid level and stop pumping once the correct level is reached.
7. After use, push the pump handle down and twist to lock it for leak-free storage.

Troubleshooting & FAQ

Q: How do I know if this pump will fit my oil bottle?
A: This pump is designed for standard quart bottles with a 28mm threaded neck. It will not fit wide-mouth bottles. Please measure your bottle's opening or check its specifications before ordering.

Q: How much fluid is transferred with each pump?
A: The fluid delivery rate is between 5-8cc per full pump stroke, depending on the specific model variant. This allows for precise, controlled filling of your gearcase or transmission.

Q: The pump isn't working. What should I do?
A: First, ensure the pump is screwed tightly onto the bottle to create a good seal. Second, check that the suction tube is fully submerged in the fluid. Finally, confirm the fluid's viscosity is not higher than the recommended 80W-90, as thicker fluids may be difficult to pump.

Q: What are the two different suction tubes for?
A: The pump includes a 6.25-inch short tube for standard quart bottles and a 10-inch long tube for taller or deeper bottles. This ensures you can reach the bottom and use all the fluid in either bottle type.

Q: OEM vs. Aftermarket?
A: 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?
A: 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?
A: 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.