Wear at the multiple accumulator bores on these various units is very common. This wear allows component apply oil to exhaust, resulting in delayed engagements, slipping or flare shifts and burned clutches. Drop-in-place Sonnax accumulator piston kit 57917E-19K incorporates an O-ring for positive sealing, even in worn bores.

• No machining or special tools required
• O-Ring provides positive seal even in worn bores
• O-Ringed piston fits multiple locations
• Drop-in Zip Valve™ parts install quickly and easily