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Dorman - First Stop Brake Master Cylinder with High Quality Materials for 1980-78 Buick Chevrolet GMC Oldsmobile Pontiac M99031

Dorman - First Stop Brake Master Cylinder with High Quality Materials for 1980-78 Buick Chevrolet GMC Oldsmobile Pontiac M99031

Regular price $35.57
Regular price Sale price $35.57
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28 in stock

Quantity

Shipping & returns

Shipping details

In-stock orders are processed within 48 hours; transit time is additional.

International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.

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Returns

Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.

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Return details & how to start

Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.

Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.

After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.

For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

Specifications

Shipping weight
4.7 lb
Barcode
082702402306

Billable shipping weight; may include dimensional weight.

Brake Master Cylinder for 1980-78 Buick Chevrolet GMC Oldsmobile Pontiac

Built to meet the manufacturer’s design intent with high-quality materials and precision engineering, this master cylinder meets rigorous SAE International standards for reliable service.

Key Features

  • Precision-engineered to match original master cylinder design
  • Made of new high-quality materials
  • Meets rigorous SAE International standards
  • Part number M99031
  • Dimensions 9.1in x 5.2in x 4.8in, weight 4.7lbs

Benefits

  • Reliable braking performance for daily driving
  • Durable replacement that reduces risk of repeat repairs
  • Easy installation with direct fit to OEM design
  • Long-lasting fix that keeps vehicle operating safely

Application

This part is for owners of 1980-78 Buick Chevrolet GMC Oldsmobile Pontiac vehicles needing a new master cylinder, such as replacing worn or failing components and restoring braking system performance.

Fitment Notes

  • Buick 1980-78
  • Chevrolet 1980-78
  • GMC 1980-78
  • Oldsmobile 1980-77
  • Pontiac 1980-78

Why Choose Dorman - First Stop?

  • Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What’s in the Box

  • 1 PC

Item Dimensions

  • 9.1in x 5.2in x 4.8in, 4.7lbs
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Vehicle fitment