Skip to product information
Upper Seal Kit for MerCruiser R-MR Alpha I Gen I 26-32511A1 32511A2 18-2648

Upper Seal Kit for MerCruiser R-MR Alpha I Gen I 26-32511A1 32511A2 18-2648

Write Review

Your Source for Aftermarket Parts

$48.39
Sale price  $48.39 Regular price 

Available to Order

Usually ships in 2–4 business days.
This Upper Seal Kit is a replacement seal set compatible with MerCruiser R-MR Alpha I Gen I drives and matches OEM part numbers 26-32511A1, 32511A2, and 18-2648.
Industrial Retailer parts support representative

Need help finding the right part? Talk with a parts expert today.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

Call us

I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.

Randy W. — Verified customer

Product Overview

This upper seal kit is designed for MerCruiser R-MR Alpha I Gen I sterndrives. It includes all necessary seals, gaskets, and O-rings to repair upper unit leaks. Ideal for boat owners and marine mechanics performing maintenance on MerCruiser outdrives.

Key Features & Performance

  • Complete upper seal kit for MerCruiser Alpha I Gen I drives
  • Includes all seals, gaskets, and O-rings needed for upper unit rebuild
  • Manufactured to OEM specifications for reliable performance
  • Helps prevent fluid leaks and ensures proper drive operation
  • Direct replacement for worn or damaged upper seals

Fitment & Compatibility

  • MerCruiser R-MR Alpha I Gen I sterndrive models
  • Replaces OEM part numbers 26-32511A1, 32511A2, and 18-2648

Common Uses

  • Repairing upper seal leaks in MerCruiser Alpha I Gen I outdrives
  • Rebuilding the upper unit during routine maintenance
  • Restoring seal integrity to prevent water intrusion
  • Replacing worn seals on older MerCruiser drives

Technical Specifications

  • Part Number(s): 26-32511A1, 32511A2, 18-2648
  • Kit Components: Upper seals, gaskets, O-rings
  • Application: MerCruiser R-MR Alpha I Gen I drives

Frequently Asked Questions

Q: Is this seal kit compatible with MerCruiser Alpha One Gen II? A: No, this kit is specifically designed for MerCruiser R-MR Alpha I Gen I drives only.

Q: Does the kit include all necessary hardware? A: Yes, the kit includes all upper seals and gaskets needed for a complete rebuild.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.

Customers also purchased

Keywords (Used as search references only) View IP policy.