Ever noticed a slow drip under your hood from the brake master cylinder reservoir? It's usually that tiny gasket under the cap giving up after years of heat, pressure, and fluid exposure. This APDTY 53183 rubber gasket is the straightforward fix you've been needing—no need to replace the entire master cylinder.
Designed for precision, it fits select models across Buick (1987-2017), Cadillac (1987-2014), Chevrolet (1987-2019), GMC (1998-2019), Hummer (2003-2007), Oldsmobile (1987-2004), Pontiac (1987-2010), and Saturn (1991-2009). Replaces OEM numbers like 18014091, 18017123, and more. Always verify compatibility with your year, make, and model using the chart to ensure a perfect match.
Why does fit matter? A snug seal prevents air from entering the system, which could lead to spongy brakes or fluid loss. This gasket compresses just right under the cap, creating a durable barrier against leaks.
Installation takes minutes: pop off the old cap, peel away the damaged gasket, clean the surface, and press in the new one. No special tools required—just steady hands. You'll immediately see no more puddles and feel confident knowing your brakes are sealed properly.
Ideal for weekend mechanics tackling routine maintenance or anyone spotting low fluid levels without obvious external damage. Picture restoring that classic Chevy truck or keeping your daily driver GMC safe on wet roads. It's a small part that makes a big difference in safety and peace of mind.
Grab this gasket and get back to driving without worries. Note: California Prop 65 warning applies—contains chemicals known to the state to cause cancer and reproductive harm.
