Exterior Components› Body Panels and Components

Proform

Harmonic Balancer Installation Tool Kit

$55.45

SKU: P022 66520

In Stock
In Stock
Ships by Sep 28
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Overview

The Proform 66520 is a harmonic balancer installation tool kit designed for universal application.

This kit includes 12 adapters to fit a wide variety of GM, Ford, Chrysler, and metric crankshafts. It features a roller thrust bearing to reduce friction during installation and comes with a durable plastic molded storage case.

To use, thread the appropriate adapter into the crankshaft and rotate the nut, which presses against the balancer.
Show original supplier description

Part #: 66520

One tool set to install just about any balancer out there. With 12 adapters to fit a variety of applications, this one-stop shop kit will allow a builder to keep everything together in a neat and organized way. Roller thrust bearing included to reduce friction. Plastic molded storage case included. Included adapters are as follows: 7/16-20, 1/2-20, 9/16-18, 5/8-18, 3/4-16, M12-1.75, M12-1.5, M10-1.5, M14-1.5, M14-1.5, M16-2.0, and M16-20.

Harmonic Balancer Installation Tool Kit

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandProform
Part NumberP022 66520

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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