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GM GENUINE PARTS

GM Genuine Parts 172-2777 (84089034) Front Driver Side Disc Brake Caliper Assembly

  • Based on 169 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

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Availability: Only 2 left in stock, order soon!
Fulfilled by World Parts Direct
Arrives Dec 5 – Dec 7
Order within 15 hours and 41 minutes
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Features

  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

Description

ACDelco GM Original Equipment Disc Brake Calipers are hydraulic components mounted over the brake rotor. The caliper acts as a clamp to press the brake pads against the brake rotor when the brakes are applied. These original equipment disc brake calipers have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Manufacturer: ‎ACDelco


Brand: ‎GM GENUINE PARTS


Model: ‎172-2777


Item Weight: ‎8.61 pounds


Product Dimensions: ‎14.7 x 7.2 x 7.2 inches


Item model number: ‎172-2777


Exterior: ‎Machined


Manufacturer Part Number: ‎84089034


OEM Part Number: ‎84089034


Position: ‎Front


Date First Available: August 11, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 5 – Dec 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great caliper!
Great caliper that has a bunch of different vehicle applications. Big brake brembos at a reasonable price. I just wish they could remove the Cadillac and powder coat them in red.
Reviewed in the United States on March 9, 2025 by Michael B.
    • Also a straight bolt on upgrade for C4 Corvettes.
Review Image by Logan King Logan King
Review Image by Logan King Logan King
Review Image by Logan King Logan King
Like the previous review for the C5 owner, I was curious about this for a C4 since the calipers are so cheap (barely any more expensive than the adapter brackets to do the C5 upgrade which is barely better than the C4 J55 brakes) and I was having clearance issues with the C5 one. Because of where they mount in relation to the knuckle vs on a C5/C6 I had to do minor filing if the inside of the rotor hat, they needed to be spaced out from the knuckle to center on the rotor (I used YFS CDC14060-8 Grade 12.9 socket cap bolts) and wheel clearance will be extra particular (they fit my OEM C5 Z06 18x10.5 58mm offset wheels), and instead of the C6 Z06 14" rotors I had to use the Powerstop C6 Z51 13.4" brake rotors (which aligns near perfectly with the brake pad area). All told a pretty good upgrade in style/feel that's barely any heavier than the stock J55 setup and actually about a pound lighter per side than the C5 calipers with the C5 adapter bracket and C6 J55 rotors. ... show more
Reviewed in the United States on February 9, 2024 by Logan King Logan King
    • As advertised, does not come with hardware
Just the calipers. They don't come with anything else. Other comments on here saying that they do mine did not.
Reviewed in the United States on October 7, 2023 by Chris D.
    • Great upgrade for my C5 Corvette
Review Image by Sam McLean Sam McLean
Review Image by Sam McLean Sam McLean
Review Image by Sam McLean Sam McLean
This caliper, matched to its twin on the other side, both mount to the C5 knuckles perfectly. Matched with some C6 Z06 rotors, throw alittle paint on them and boom you have a perfect budge OE brembo kit. Supper happy with the results.
Reviewed in the United States on August 8, 2022 by Sam McLean Sam McLean
    • Gr86
Review Image by Gr86 Break swap Gr86 Break swap
I did a break swap for my Gr86, and it went smoothly… no fitment problem but I did have to get a bracket/adaptor from Ctsv so it could mount on properly…. Running 12.6in rotors but I think anywhere from 12.6-12.8 will do the trick for these.
Reviewed in the United States on September 28, 2023 by Gr86 Break swap Gr86 Break swap
    • perfect
Review Image by Ashley kozlov Ashley kozlov
new perfect ,
Reviewed in the United States on June 12, 2024 by Ashley kozlov Ashley kozlov
    • ATS Swap
Review Image by Andres Andres
Review Image by Andres Andres
Review Image by Andres Andres
I used this caliper for the Cadillac ATS Swap on my GR86. It's not ment for my car but with the proper kit from CTS-V Brake Swap website. They fit no issue.
Reviewed in the United States on August 4, 2023 by Andres Andres
    • These are Brand new Factory Brembo calipers.
One caliper arrived in a plain beat-up box. The other one which was on a month long back-order came in a factory sealed AC Delco box. They come without pads or pad hardware.
Reviewed in the United States on November 16, 2022 by Rick H

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