# YMD-GL4PM-P1 Yamalube Gear Oil Pump 1ltr | Genuine OEM Yamaha Outboard Part

🔧 Product Description

  

Genuine Yamaha Yamalube One-Litre Gear Oil Bottle Pump - Part Number: YMD-GL4PM-P1

  

A genuine Yamaha hand pump designed to fit one-litre Yamalube GL4 and GL5 gear-oil bottles.

  

The pump allows clean, controlled filling of an outboard or sterndrive gearcase through the lower drain and fill opening, reducing spills and trapped air during lower-unit servicing.

  

⚙️ Key Features

  

• Genuine Yamaha gear-lube service pump

• Correct Yamaha part number YMD-GL4PM-P1

• Designed for one-litre Yamalube gear-oil bottles

• Supplied with hose and Yamaha gearcase filling adaptor

• Suitable for Yamaha two-stroke and four-stroke lower units

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• YMD-GL4PM-P1 current Yamaha accessory reference

  

OEM / Related Numbers:

  

• YMD-GL4PM-P1

• YMD-GL4PM-P1-00

• YMDGL4PMP100

• Yamalube GL4 one-litre gear oil

• Yamalube GL5 one-litre gear oil

  

Aftermarket / Verified Equivalents:

  

• Universal one-litre marine gear-oil bottle pump

• Lower-unit filling pump with Yamaha threaded adaptor

• Mercury adaptor may be supplied with selected pump versions

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha outboard and sterndrive gearcases

• Yamalube one-litre GL4 and GL5 gear-oil containers

  

Typically suits:

  

• Engine models:

• Yamaha two-stroke outboards

• Yamaha four-stroke outboards

• Yamaha HPDI outboards

• Yamaha standard-rotation and counter-rotation lower units

• Yamaha sterndrives with compatible fill-plug threads

• Yamaha HPDI high-pressure pump filling where the workshop procedure specifies this pump

  

• HP Range: Yamaha portable through high-horsepower outboards

• Engine Type: Yamaha two-stroke, HPDI and four-stroke outboard

• Bottle Compatibility: One-litre Yamalube GL4 and GL5 containers

  

🔌 Function

  

The pump transfers fresh lubricant into the lower unit from the bottom fill opening until oil exits the upper vent.

  

Typical use:

  

• Remove the upper vent plug

• Remove the lower drain and fill plug

• Thread the pump adaptor into the lower opening

• Pump lubricant until clean oil exits the upper vent

• Refit the upper plug before disconnecting the pump

• Refit the lower plug using new sealing washers

  

Common signs a filling pump is useful:

  

• Filling directly from the bottle is slow or messy

• Air becomes trapped inside the gearcase

• Gear oil spills while changing bottles

• The lower unit requires controlled bottom-up filling

• Repeated marine servicing requires a reusable pump

  

📦 Condition

  

• Genuine Yamaha accessory

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 25.0 AUD
- **Vendor:** Yamaha
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 25.00 AUD | In stock |

## Images

- YMD-GL4PM-P1 Yamalube Gear Oil Pump 1ltr | Genuine OEM Yamaha Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/ymd-gl4pm-p1-yamalube-gear-oil-pump-1ltr)
> Updated: 2026-07-11