Engines and Components› Harmonic Balancers

COMP Cams

ADAPTER, 5/8"-18 FOR BALANCER INSTA

$10.95

SKU: C007 5677CPG

In Stock
In Stock
Ships by Sep 21
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The COMP Cams 5677CPG is a thread adapter designed for harmonic balancer installer tools. It features a 5/8"-18 thread specification, allowing for proper mating of installer tools to engines requiring this thread pitch.

This adapter ensures correct and damage-free installation of harmonic balancers and vibration dampers. It is precision-machined for accurate thread engagement and reliable torque transfer, preventing damage to crankshaft threads. Its compact design allows for easy use in tight engine bays.
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ADAPTER, 5/8"-18 FOR BALANCER INSTA

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

BrandCOMP Cams
Part NumberC007 5677CPG
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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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