Gearcase Seal Kit for Mercury Mariner 135-220HP Lower Unit 26-89238A2, 18-2655
Gearcase Seal Kit for Mercury Mariner 135-220HP Lower Unit 26-89238A2, 18-2655
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Gearcase Seal Kit for Mercury Mariner
This gearcase seal kit is designed for Mercury Mariner outboard lower units from 135 to 220 horsepower, providing all necessary seals to prevent water ingress and maintain gearcase integrity. OEM cross-reference numbers include 26-89238A2 and 18-2655.
Overview
This gearcase seal kit replaces worn seals in Mercury Mariner lower units, ensuring proper sealing of the gearcase to prevent water contamination. It fits 135-220HP outboard models and includes multiple seals for a complete overhaul. Use this seal kit to restore your lower unit's performance and extend its service life.
Built For Performance
- Includes all necessary seals for a complete lower unit reseal
- Manufactured to OEM specifications for reliable fit and function
- High-quality rubber compounds resist oil and water degradation
- Easy to install with basic hand tools
- Prevents gearcase oil leaks and water intrusion
- Cost-effective alternative to dealer parts
Fits These Machines
- for Mercury Mariner 135HP lower unit
- for Mercury Mariner 150HP lower unit
- for Mercury Mariner 175HP lower unit
- for Mercury Mariner 200HP lower unit
- for Mercury Mariner 220HP lower unit
On-The-Job Use
- During routine lower unit maintenance and seal replacement
- When rebuilding Mercury Mariner outboard gearcases
- To fix water in gearcase oil or oil leaks
- For marine mechanics and DIY boaters performing repairs
- In saltwater and freshwater applications
Specs At A Glance
| Part Number(s) | 26-89238A2, 18-2655 |
| Application | Mercury Mariner 135-220HP Lower Unit |
| Kit Contents | Multiple seals, O-rings, gaskets |
| Material | Nitrile Rubber |
Good To Know
Q: Will this kit fit a Mercury Mariner 200HP with serial number 0W123456? A: The kit is designed for 135-220HP lower units, but serial number variations may affect fit. Cross-check your lower unit part numbers with the provided references.
Q: Are all necessary seals included? A: Yes, the kit includes the drive shaft seal, prop shaft seal, shift shaft seal, and associated O-rings for a complete reseal.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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