Buick Grand National / T-type 85 - 87 accumulator ball. (NEW) replaces AC Delco or GM part # 18038507. GM part # 25528382 is for 88 and newer.
Its made in Germany and comes with a manufacturers one-year warranty. It is similar to the original brake bowl with the nut inward and its slightly larger than the original. Original brake accumulator bowls were all black with the nut inward. The popular GM replacement item had yellow wording on it and had the nut on the outer edge. The original and replacement brake accumulator bowls are no longer available.
In many cases, it is the brake accumulator that has failed if the brake light is coming on when you hit the brakes. If you have blown the Powermaster fuse or you don't hear the motor running, the brake accumulator will not fix the problem.
We highly recommend that you also change the brake fluid when you replace the brake accumulator bowl.
If the proportioning valve has not been updated with the recall we will not warranty the accumulator ball. The iron units fail and the attacks the glue that holds the diaphragm in place. This causes premature failure occurring about every 3-5 years.
***New ACC Balls and we are now under a 5 year warranty no questions asked. As far as we know we are the only company giving a 5 year warranty on the accumulator balls from date of purchase. ONCE AGAIN ONLY IF THE PROPORTIONING VALVE HAS BEEN CHANGED FROM IRON TO BRASS!
We do carry new Brass proportioning valves.