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Cotter Pin 18-89961

Satisfaction rating 4 out of 5 (2 Ratings)
You save $0.13. (5%) $2.58
Leaves in 3-5 days
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Product Description

Mercury factory part. Search for more factory parts & parts diagrams.

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2 Product Reviews

Force 50 HP 507x5a

Repair Difficulty
Repair Time
More than 4 hours
Experience was good but paying $5 for shipping on a 1/8 ounce drive shaft pin is a bit ridiculous.

Problem fixed: Drained lower unit fluid after purchase. Found water and lube mixed and salt corrosion from prior owner. All seals were shot.

Complete lower unit gear seal replacement and water pump repairs/replacement. Used your drawing diagrams to identify seals and other replacement parts available. Placed order and proceeded to remove all old seals, clean bearings and use salt remover wash to aid corrosion removal. Pressure testing lower gear box soon to see if my work was effective at sealing lower unit back to specs.

Very good!

Product Fitment Grid

This guide is to be used as a reference only. You must verify fitment using your model or serial number.

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Supersession Chain

Name SKU Superceding SKU
PIN-COTTER 802028 89961
PIN SS F1027 89961
Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States.