Seller notes

Replaces GM part # 25509419 This brake proportioning valve comes in brass and will fit all G-Body's & many other GM vehicles, trucks etc from the 80's & 90's. The original was made in iron. It was re-called. This was due to the iron deteriorating & causing damages to the accumulator ball. What happens is the Iron attacks the glue that attaches the seal to the steel ball. When this happens the diaphragm looses it charge. If your replacing your Acc ball or power master this is a must to keep your ...

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