Two yellow rubber washers on a white background

2 Drain & Vent Screw Seals Mercruiser & Mercury, Replaces 26-830749

RM10-10100

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • In stock, ready to ship
  • Backordered, shipping soon
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.

Regular price Β£8.84 Sale priceΒ£4.95 Save Β£3.89
/
Tax included.

Gearcase Drain Seal Pack (26-830749)

Premium Quality Aftermarket Replacement Seals

Maintaining your marine engine's gearcase is critical to preventing water intrusion and catastrophic gear failure. These premium gearcase drain and vent screw seals are designed to provide a perfect, leak-free seal every time you change your gear lube. Engineered to match the dimensions and performance of the original equipment, these seals are essential for any routine maintenance on Mercury and MerCruiser drive units.

RELIABILITY: Built to meet or exceed OEM specifications. These seals feature a tear-resistant design to ensure a tight fit against the 3/8-16 drain/fill screw holes.

Key Features

  • βœ” Pack of 2 replacement seals
  • βœ” Direct fit for 3/8-16 gearcase screws
  • βœ” High oil and corrosion resistance
  • βœ” Precision engineered for tear-resistance

Technical Specs

Outer Diameter: 14 mm
Inner Diameter: 9 mm (0.35")
Thickness: 1.5 mm
Screw Size: 3/8-16 Thread
Material: High-Grade Synthetic/Fiber

Compatibility / Fitment Guide

Make/System Model/Application Notes
Mercury / Mariner Most Outboard Models (40HP - 600HP) Excludes models of Japanese origin
MerCruiser All Sterndrive and Inboard Units Universal for 3/8-16 screws
Alpha & Bravo All Generations Standard maintenance part

OEM Cross Reference

Mercury / Quicksilver 26-830749, 26-8307491, 26-8M0204693
Sierra Marine 18-2945, 18-2430-9
Mallory Marine 9-52306
GLM Marine 00210

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number matches any of these, it is a guaranteed fit for standard 3/8-16 thread screws.

How often should these seals be replaced?

It is best practice to replace both the drain and vent seals every time you change your gear lube (typically annually or every 100 hours) to ensure a reliable seal.

Note: Please verify your original part number against the references above before purchasing. Distributed via 4boats.co.uk.

For the products under Β£150 the shipping is Β£6.99.

Free delivery for most items over Β£150.

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