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ARP 129-2503 Harmonic Balancer Bolt Kit M18 x 1.5 12-Point Damper Bolt

Part of: ARP Balancer Bolt Kit

Other options in this family: ARP 147-2502 ARP 154-2501 ARP 150-2505 ARP 147-2503 ARP 135-2501

Manufacturer

Picture for manufacturer ARP

Part Number

129-2503
19 reviews
Sale Price

$25.30

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The ARP 129-2503 balancer bolt kit, also called a harmonic damper bolt or crankshaft damper bolt, secures the harmonic balancer to the crankshaft on GM Duramax diesel engines. It is intended as an upgrade over the factory bolt.

Key Features:

  • Thread: M18 x 1.5
  • Underhead length: 2.750 in.
  • Head: low-profile 36mm 12-point head that accepts a deep socket
  • Material: chromoly steel
  • Finish: black oxide

The 12-point head helps lock the balancer in position and reduces the risk of stripping the head during installation.

First time customer, easy to order online, received the package quickly. Very happy with the over all service.

Great experience. Fast ship time.

Great price

Quick & Great Price

Cheaper than anywhere else and received shipment in a timely manner.

Website easy to navigate, found parts quickly. Prices lower than competitors.

Thank you for your prompt service.

I can't wait for parts

Great customer service

EASY

Found what I needed quickly.

Great price and fast shipping...took only 2 days to deliver. Very satisfied customer

To be seen

Great price

Easy to navigate

Your website said that these would not fit my vehicle. However, every other site says they do, including the manufacturer's website.

Awesome Products!

Sitting at home, having a beer, ordering parts and saving money, can't beat that!!

Pictures are clear, price is reasonable and the check out was fast and easy.

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