Tools› Engine-Related

Proform

Mini Spring Tester

$187.39

SKU: P022 66842

In Stock
In Stock
Ships by Aug 7
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

Part #: 66842

With this all-in-one tool, you will no longer need to using a ruler to measure spring height. Simple set the spring height with the highly refined measurement micrometer tube (0.01in increments), put it in the vise and start testing. The digital gauge includes a backlighting feature, and can switch from pounds to kilograms. Max spring diameter is 1.7in.

Digital Engine Valve Spring Tester With Micrometer Combo

MIA's Description

The Proform 66842 is a digital engine valve spring checker and measuring micrometer combo. It offers a 0-700 lb range with 2 lb increments and a backlit LCD display. This tool eliminates the need for an inaccurate ruler for spring height measurements, allowing users to set height with the micrometer tube in 0.01-inch increments.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandProform
Part NumberP022 66842

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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