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Please, add your first item to the wishlist

Select vehicle to confirm fitment

Brake Master Cylinder Repair Kit

PART#: 18G1227
ACDelco
Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
1962ChevroletCorvetteBase5.3V8GASN/A
1961ChevroletCorvetteBase4.6V8GASN/A
1960ChevroletCorvetteBase4.6V8GASN/A
1959ChevroletCorvetteBase4.6V8GASN/A
1958ChevroletCorvetteBase4.6V8GASN/A
1957ChevroletCorvetteBase4.6V8GASN/A
1957PontiacBonnevilleBase5.7V8GASN/AVehicles Built For United States Market
1957PontiacChieftainBase5.7V8GASN/AVehicles Built For United States Market
1957PontiacChieftainCustom Safari5.7V8GASN/AVehicles Built For United States Market
1957PontiacChieftainCustom Safari Transcontinental5.7V8GASN/AVehicles Built For United States Market
1957PontiacStar ChiefCustom5.7V8GASN/AVehicles Built For United States Market
1957PontiacStar ChiefBase5.7V8GASN/AVehicles Built For United States Market
1957PontiacStar ChiefBase4.3L6GASN/AVehicles Built For United States Market
1957PontiacSuper ChiefBase5.7V8GASN/AVehicles Built For United States Market; w/ Manual Brakes
1956ChevroletCorvetteBase4.3V8GASN/A
1956PontiacChieftainBase5.2V8GASN/AVehicles Built For United States Market
1956PontiacStar ChiefCustom5.2V8GASN/AVehicles Built For United States Market
1956PontiacStar ChiefBase5.2V8GASN/AVehicles Built For United States Market
1956PontiacStar ChiefBase4.3L6GASN/AVehicles Built For United States Market
1955BuickSpecialBase4.3V8GASN/Aw/ Manual Brakes
1955BuickSuperBase5.3V8GASN/Aw/ Manual Brakes
1955CadillacSeries 62Base5.4V8GASN/Aw/ Manual Brakes
1955CadillacSeries 75 FleetwoodBase5.4V8GASN/Aw/ Manual Brakes
1955ChevroletCorvetteBase4.3V8GASN/A
1955ChevroletCorvetteBase3.8L6GASN/A
1955PontiacChieftainSafari4.7V8GASN/AVehicles Built For United States Market
1955PontiacChieftainBase4.7V8GASN/AVehicles Built For United States Market
1955PontiacStar ChiefCustom4.7V8GASN/AVehicles Built For United States Market
1955PontiacStar ChiefBase4.7V8GASN/AVehicles Built For United States Market
1955PontiacStar ChiefBase4.3L6GASN/AVehicles Built For United States Market
1954BuickSkylarkBase5.3V8GASN/Aw/ Manual Brakes
1954BuickSpecialBase4.3V8GASN/Aw/ Manual Brakes
1954BuickSuperBase5.3V8GASN/Aw/ Manual Brakes
1954CadillacSeries 62Base5.4V8GASN/Aw/ Manual Brakes
1954CadillacSeries 75 FleetwoodBase5.4V8GASN/Aw/ Manual Brakes
1954ChevroletCorvetteBase3.8L6GASN/A
1954PontiacChieftainBase4.4L8GASN/AVehicles Built For United States Market
1954PontiacChieftainCustom3.9L6GASN/AVehicles Built For United States Market
1954PontiacChieftainDeluxe3.9L6GASN/AVehicles Built For United States Market
1954PontiacChieftainSpecial3.9L6GASN/AVehicles Built For United States Market
1954PontiacChieftainDeluxe4.4L8GASN/AVehicles Built For United States Market
1954PontiacChieftainSpecial4.4L8GASN/AVehicles Built For United States Market
1954PontiacChieftainBase3.9L6GASN/AVehicles Built For United States Market
1954PontiacChieftainCustom4.4L8GASN/AVehicles Built For United States Market
1953BuickSpecialBase4.3L8GASN/Aw/ Manual Brakes
1953BuickSuperBase5.3V8GASN/Aw/ Manual Brakes
1953CadillacSeries 62Base5.4V8GASN/Aw/ Manual Brakes
1953CadillacSeries 75 FleetwoodBase5.4V8GASN/Aw/ Manual Brakes
1953ChevroletCorvetteBase3.9L6GASN/A
1953ChevroletCorvetteBase3.8L6GASN/A
1953PontiacChieftainCustom3.9L6GASN/AVehicles Built For United States Market
1953PontiacChieftainSpecial3.9L6GASN/AVehicles Built For United States Market
1953PontiacChieftainBase4.4L8GASN/AVehicles Built For United States Market
1953PontiacChieftainDeluxe4.4L8GASN/AVehicles Built For United States Market
1953PontiacChieftainSpecial4.4L8GASN/AVehicles Built For United States Market
1953PontiacChieftainCustom4.4L8GASN/AVehicles Built For United States Market
1953PontiacChieftainDeluxe3.9L6GASN/AVehicles Built For United States Market
1953PontiacChieftainBase3.9L6GASN/AVehicles Built For United States Market
1952BuickSpecialBase4.3L8GASN/Aw/ Manual Brakes
1952BuickSuperBase4.3L8GASN/Aw/ Manual Brakes
1952CadillacSeries 62Base5.4V8GASN/Aw/ Manual Brakes
1952CadillacSeries 62DeVille5.4V8GASN/Aw/ Manual Brakes
1952CadillacSeries 75 FleetwoodBase5.4V8GASN/Aw/ Manual Brakes
1952PontiacChieftainDeluxe4.4L8GASN/A
1952PontiacChieftainBase4.4L8GASN/A
1952PontiacChieftainBase3.9L6GASN/A
1952PontiacChieftainDeluxe3.9L6GASN/A
1952PontiacChieftainSuper Deluxe3.9L6GASN/A
1952PontiacChieftainSuper Deluxe4.4L8GASN/A
1951BuickSpecialBase4.3L8GASN/Aw/ Manual Brakes
1951BuickSuperBase4.3L8GASN/Aw/ Manual Brakes
1951CadillacSeries 61Base5.4V8GASN/A
1951CadillacSeries 62DeVille5.4V8GASN/A
1951CadillacSeries 62Base5.4V8GASN/A
1951CadillacSeries 75 FleetwoodBase5.4V8GASN/Aw/ Manual Brakes
1951PontiacChieftainDeluxe3.9L6GASN/A
1951PontiacChieftainDeluxe4.4L8GASN/A
1951PontiacChieftainBase3.9L6GASN/A
1951PontiacChieftainBase4.4L8GASN/A
1951PontiacChieftainSuper Deluxe3.9L6GASN/A
1951PontiacChieftainSuper Deluxe4.4L8GASN/A
1951PontiacStreamlinerBase3.9L6GASN/A
1951PontiacStreamlinerBase4.4L8GASN/A
1950BuickRoadmasterBase5.2L8GASN/Aw/ Manual Brakes
1950BuickSpecialBase4.1L8GASN/Aw/ Manual Brakes
1950BuickSuperBase4.3L8GASN/Aw/ Manual Brakes
1950CadillacSeries 61Base5.4V8GASN/A
1950CadillacSeries 62Base5.4V8GASN/A
1950CadillacSeries 62DeVille5.4V8GASN/A
1950CadillacSeries 75 FleetwoodBase5.4V8GASN/Aw/ Manual Brakes
1950PontiacChieftainBase4.4L8GASN/A
1950PontiacChieftainBase3.9L6GASN/A
1950PontiacStreamlinerBase4.4L8GASN/A
1950PontiacStreamlinerBase3.9L6GASN/A
1949CadillacSeries 75 FleetwoodBase5.4V8GASN/A
1949CadillacSeries 62Base5.4V8GASN/A
1949CadillacSeries 62DeVille5.4V8GASN/A
1949CadillacSeries 61Base5.4V8GASN/A
1949PontiacChieftainBase3.9L6GASN/A
1949PontiacChieftainBase4.1L8GASN/A
1949PontiacStreamlinerBase4.1L8GASN/A
1949PontiacStreamlinerDeluxe---U/KN/A
1949PontiacStreamlinerBase3.9L6GASN/A
1948CadillacSeries 75 FleetwoodBase5.7V8GASN/A
1948CadillacSeries 62Base5.7V8GASN/A
1948CadillacSeries 61Base5.7V8GASN/A
1948ChevroletFleetmasterBase3.5L6GASN/AVehicles Built For United States Market
1948ChevroletStylemaster SeriesBase3.5L6GASN/AVehicles Built For United States Market
1948ChevroletFleetlineBase3.5L6GASN/AVehicles Built For United States Market
1948PontiacStreamlinerBase4.1L8GASN/A
1948PontiacStreamlinerBase3.9L6GASN/A
1948PontiacTorpedoBase3.9L6GASN/A
1948PontiacTorpedoBase4.1L8GASN/A
1947CadillacSeries 75 FleetwoodBase5.7V8GASN/A
1947CadillacSeries 62Base5.7V8GASN/A
1947CadillacSeries 61Base5.7V8GASN/A
1947ChevroletFleetmasterBase3.5L6GASN/AVehicles Built For United States Market
1947ChevroletStylemaster SeriesBase3.5L6GASN/AVehicles Built For United States Market
1947ChevroletFleetlineBase3.5L6GASN/AVehicles Built For United States Market
1947PontiacStreamlinerBase4.1L8GASN/A
1947PontiacStreamlinerBase3.9L6GASN/A
1947PontiacTorpedoBase3.9L6GASN/A
1947PontiacTorpedoBase4.1L8GASN/A
1946CadillacSeries 75 FleetwoodBase5.7V8GASN/A
1946CadillacSeries 62Base5.7V8GASN/A
1946CadillacSeries 61Base5.7V8GASN/A
1946ChevroletFleetmasterBase3.5L6GASN/AVehicles Built For United States Market
1946ChevroletStylemaster SeriesBase3.5L6GASN/AVehicles Built For United States Market
1946ChevroletDPBase3.5L6GASN/A
1946ChevroletDPBase3.8L6GASN/A
1946ChevroletFleetlineBase3.5L6GASN/AVehicles Built For United States Market
1946PontiacStreamlinerBase4.1L8GASN/A
1946PontiacStreamlinerBase3.9L6GASN/A
1946PontiacTorpedoBase4.1L8GASN/A
1946PontiacTorpedoBase3.9L6GASN/A
1942CadillacSeries 67Base5.7V8GASN/A
1942CadillacSeries 63Base5.7V8GASN/A
1942CadillacSeries 62Base5.7V8GASN/A
1942CadillacSeries 61Base5.7V8GASN/A
1942ChevroletFleetlineBase3.5L6GASN/AVehicles Built For United States Market
1942ChevroletBKBase3.8L6GASN/A
1942ChevroletBKBase3.5L6GASN/A
1942ChevroletFleetmasterBase3.5L6GASN/AVehicles Built For United States Market
1942PontiacTorpedoBase4.1L8GASN/A
1942PontiacTorpedoBase3.9L6GASN/A
1942PontiacTorpedoBase3.9L6GASN/A
1942PontiacStreamlinerBase3.9L6GASN/A
1942PontiacStreamlinerBase3.9L6GASN/A
1942PontiacStreamlinerBase4.1L8GASN/A
1941CadillacSeries 67Base5.7V8GASN/A
1941CadillacSeries 63Base5.7V8GASN/A
1941CadillacSeries 62Base5.7V8GASN/A
1941CadillacSeries 61Base5.7V8GASN/A
1941ChevroletSpecial DeluxeBase3.5L6GASN/A
1941ChevroletFleetlineBase3.5L6GASN/AVehicles Built For United States Market
1941ChevroletAKBase3.5L6GASN/A
1941PontiacTorpedoBase3.9L6GASN/A
1941PontiacTorpedoBase4.1L8GASN/A
1940CadillacSeries 62Base5.7V8GASN/A
1940CadillacSeries 60 SpecialBase5.7V8GASN/A
1940ChevroletMaster 85Base3.5L6GASN/A
1940ChevroletSpecial DeluxeBase3.5L6GASN/A
1940ChevroletKCBase3.5L6GASN/A
1940PontiacTorpedo Series 29Base4.1L8GASN/Aw/ Manual Brakes
1940PontiacSpecial Series 25Base---U/KN/Aw/ Manual Brakes
1940PontiacDeluxe Series 28Base4.1L8GASN/Aw/ Manual Brakes
1940PontiacDeluxe Series 26Base3.6L6GASN/Aw/ Manual Brakes
1939CadillacSeries 60 SpecialBase5.7V8GASN/A
1939CadillacSeries 61Base5.7V8GASN/A
1939ChevroletMaster 85Base3.5L6GASN/A
1939ChevroletJCBase3.5L6GASN/A
1939PontiacDeluxe Series 28Base4.1L8GASN/Aw/ Manual Brakes
1939PontiacDeluxe Series 26Base3.6L6GASN/Aw/ Manual Brakes
1938ChevroletMasterBase3.5L6GASN/A
1938ChevroletHCBase3.5L6GASN/A1" Bore Diameter
1938ChevroletMaster DeluxeBase3.5L6GASN/A
1937CadillacSeries 60Base5.7V8GASN/A
1937CadillacSeries 65Base5.7V8GASN/A
1937ChevroletMasterBase3.5L6GASN/A
1937ChevroletMaster Deluxe TruckBase3.5L6GASN/A
1937ChevroletGCBase3.5L6GASN/A
1937ChevroletGEBase3.5L6GASN/A1" Bore Diameter
1937ChevroletMaster DeluxeBase3.5L6GASN/A
1936ChevroletStandardBase3.4L6GASN/A
1936ChevroletMaster Deluxe TruckBase3.4L6GASN/A
Product info

The ACDelco Brake Master Cylinder Repair Kit (part number 18G1227) is an essential component for maintaining your Buick, Cadillac, Chevrolet, or Pontiac’s braking system performance. This kit includes all the necessary components for repairing your brake master cylinder and ensuring optimal performance.

This brake master cylinder repair kit is made with high-quality materials and is designed to meet or exceed OEM specifications. With its reliable and durable construction, it offers long-lasting performance and guarantees your safety while driving.

The kit features a range of benefits, including easy installation, compatibility with various Buick, Cadillac, Chevrolet, and Pontiac models, and enhanced braking performance. It is perfect for car enthusiasts who want to ensure their braking system is in top condition and for mechanics who need reliable and efficient brake repair parts.

With the ACDelco Brake Master Cylinder Repair Kit (part number 18G1227), you can enjoy improved braking performance, minimized brake noise, and reduced brake failure risk. Make sure your car’s braking system is at its best with this top-quality repair kit.

About ACDelco

When it comes to top-notch auto parts, one brand that stands tall is ACDelco. Popular for its commitment to quality and innovation, ACDelco has been a trusted name in the automotive industry. At Newparts.com, we're proud to offer a wide selection of ACDelco auto parts, including ACDelco spark plugs, ACDelco alternators, and ACDelco air filters, and other ACDelco parts, all at discounted prices.

ACDelco spark plugs are engineered to deliver exceptional performance and reliability, ensuring optimal engine operation and fuel efficiency. Whether you're cruising down the highway or navigating city streets, you can trust ACDelco spark plugs to keep your engine firing on all cylinders.

When it comes to power generation, ACDelco alternators are second to none. Designed to withstand the challenges of daily driving, ACDelco alternators deliver consistent power output to keep your vehicle's electrical systems running smoothly. With ACDelco alternators from Newparts.com, you can count on reliable performance mile after mile.

In addition to spark plugs and alternators, we also offer a range of ACDelco air filters to help keep your engine breathing clean, fresh air. ACDelco air filters are designed to trap dirt, dust, and other contaminants, preventing them from entering your engine and causing damage. With a high-quality ACDelco air filter from Newparts.com, you can enjoy improved engine performance and extended engine life.

At Newparts.com, we understand that getting the right parts quickly is essential. That's why we offer fast shipping on all ACDelco auto parts, so you can get back on the road with confidence. Plus, with our discounted prices, you can save big on the parts you need to keep your vehicle running smoothly. In case you want to purchase parts by phone, feel free to call us at 855-505-2886 and our customer service team will help you out. 

Whether you're in need of spark plugs, alternators, air filters, or any other ACDelco auto parts, Newparts.com has you covered. Shop our selection today and experience the quality and reliability of ACDelco for yourself.

Specifications
Boot IncludedYES
Cup MaterialRubber
Master Cylinder Cap IncludedNo
Piston IncludedYES
Pushrod IncludedNo
Seals IncludedYes
Springs IncludedYES
Warranty
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!
Delivery & Returns

Delivery Info

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

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