Dorman 917-139 harmonic balancer bolt for the 2018 Chevrolet Equinox 4-cylinder 2.0L and other vehicles secures the harmonic balancer to the crankshaft.
- Part of the Dorman OE Solutions line
- Torque-to-yield bolt
- Single-use bolt, not meant to be reinstalled once removed
- Steel construction for reliable performance and long service life
- Replaces a bolt that is missing or has failed from fatigue
Quick facts
- Part: Dorman 917-139 harmonic balancer bolt
- Also called: engine harmonic balancer bolt
- Fits: 2018 Chevrolet Equinox 4-cylinder 2.0L and other vehicles
- Material: Steel
- Condition: New
A vibration or knocking from the front of the engine can mean the engine harmonic balancer bolt has loosened or failed, though a damaged harmonic balancer or a worn crankshaft pulley can be behind it too, so pin down which one it is before you buy parts.
Fits
This bolt is a direct-fit replacement, listed for a wide range of Chevrolet, Buick, Cadillac and GMC models, led by the 1999-2013 Chevrolet Silverado 1500 V8 4.8L or 5.3L, the 2003-2013 Silverado 1500 V8 6.0L and the 2009-2013 Silverado 1500 V8 6.2L, and the 2014-2019 Chevrolet Impala 4-cylinder 2.5L. If your car or truck is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Quantity per listing: 1
Build and materials
- Material: Steel
- Torque-to-yield: Yes
- One-time use: Yes
- Condition: New
- Country of origin: United States
In the box
One harmonic balancer bolt. This listing holds one, and each vehicle takes one.
Interchange: 12557840 · B75001
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does the 917-139 harmonic balancer bolt fit a 2003-2013 Chevrolet Silverado 1500 V8 6.0L?
Yes. Dorman 917-139 is listed for the 2003-2013 Chevrolet Silverado 1500 V8 6.0L, and each vehicle takes one bolt. For other years or engines, check the "Vehicles it fits" section.
Can I reuse a torque-to-yield harmonic balancer bolt?
No. Dorman 917-139 is a torque-to-yield, one-time-use bolt, so a new bolt goes in rather than the old one being reused.
Does the Dorman 917-139 come with a new harmonic balancer?
No. The package holds one harmonic balancer bolt only. The balancer itself is a separate part.
Could vibration at the front of the engine come from a loose harmonic balancer bolt?
It can. A loose or failed bolt may show up as vibration or knocking up front, but a damaged balancer or worn pulley can too. A shop can inspect it.
Does the Dorman 917-139 bolt cross to number 12557840?
Yes. 12557840 is listed as an interchange number for Dorman 917-139, along with B75001.
