Sierra Thrust Washer for Mercury/Mariner, Sierra #18-4220 image number 1
Online Exclusive

Sierra Thrust Washer for Mercury/Mariner, Sierra #18-4220

4.5 out of 5 Customer Rating 8 Reviews | Ask a Question
Item #: 314206
Sierra Thrust Washer for Mercury/Mariner, Sierra #18-4220
Sierra Thrust Washer for Mercury/Mariner, Sierra #18-4220
Delivery time calculated in checkout Delivery time calculated in checkout
Next Day Delivery
Not Available
  • Ships from vendor
Additional shipping charges may apply.

Ships from Vendor

In-Store Only

FREE Standard Shipping over $99. | Good Sam Members: FREE Shipping over $69

This item is excluded from all discounts and promotions.

Minimum order quantity of 1
Maximum order quantity of 100
Must purchase in increments of 1
Shipping Restrictions
This item cannot be shipped internationally.
Return Policy

We believe in offering the very best value, quality, and selection. Plus, we want you to enjoy your purchase! In the event you wish to send a product back to us, you may return most unused items for a refund or exchange, minus shipping, within 90 days from the date of purchase unless noted below under exceptions and exclusions. Refunds are issued to the original form of payment, unless returned in store where some exclusions may apply.

Worn or scored thrust washers and prop nuts can cause damage to your prop shaft and propeller face. Protect your drive system by changing your thrust washer and prop nut when replacing or inspecting your propeller.

Fits Mercury/Mariner: 40-60 hp BigFoot 4-Stroke; 75-125 hp 2-cycle & 4-Stroke; 135-275 hp 2-cycle.
Fits Force: 75 hp ('99); 90-150 hp ('95 and newer)
Fits MerCruiser Alpha and Bravo I sterndrives

GLM 21300
Mercruiser 77987A1, 13171, 12-835467, 12-8354671, 12-835467Q01
Mercury 77987, 12-8354671, 12-835467, 13171, 77987A1

Sierra Part No. 18-4220
  • For use with Mercury/Mariner
  • For use with Mercruiser Alpha & Bravo I
  • For use with Force 90-150 hp ('95 up)
  • Sierra Part No. 18-4220
Unit Weight
0.46 lb
MFG Part No.