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