Towing Equipment› Hitches

Fastway/Equal-i-zer

5/8IN LOCK WASHER FOR 4K

$22.74

SKU: F011 90-03-9420

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Fastway/Equal-i-zer 5/8" lock washer is a zinc-plated split washer designed for use with 4K Equal-i-zer hitches. This part, with the number 90-03-9420, is a replacement component for hitch hardware.

This lock washer is specifically a 5/8" split lock washer, intended to help secure connections within the hitch assembly. It is part of the replacement hardware available for Fastway and Equal-i-zer towing products.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandFastway/Equal-i-zer
Part NumberF011 90-03-9420

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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