Search  for anything...

ACDelco Professional 18M391429 Brake Master Cylinder Assembly

  • Based on 4 reviews
Condition: New
Checking for product changes
$219.63 Why this price?

Buy Now, Pay Later


As low as $36.61 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Jun 4
Order within 6 hours and 15 minutes
Available payment plans shown during checkout

Features

  • Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
  • Pressure tested to ensure safe and confident braking
  • Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
  • Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
  • Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear

Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Model: ‎Master Cylinder Assembly


Item Weight: ‎2.1 pounds


Product Dimensions: ‎6.7 x 4.1 x 9.3 inches


Country of Origin: ‎Taiwan


Item model number: ‎18M391429


Exterior: ‎Painted


Manufacturer Part Number: ‎18M391429


OEM Part Number: ‎19336904


Date First Available: June 7, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 4

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Does not fit 1992 Corvette even though it says it does
It's missing a connection on the reservoir. Connection is missing completely!
Reviewed in the United States on August 6, 2023 by joe upton

  • Incorrect reservoir.
Incorrect reservoir for 1992 Corvette. You either need to purchase the correct reservoir separately, reuse your old one, or buy a different product. The master cylinder was adequate.
Reviewed in the United States on December 27, 2020 by M.M.

  • Incorrect Reservoir
It was the improper reservoir, I was required to buy another, but the Master Cylinder itself was perfect!
Reviewed in the United States on September 8, 2018 by 96 Dream

Can't find a product?

Find it on Amazon first, then paste the link below.