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Allison > 4000 SERIES, B500, T400, and T500 > J-42048
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Tool Number: J-42048
Tool Name: Retarder Control Valve Spring Compressor
Applications: 3000 SERIES, B200, B300, B400, T200, and T300, 4000 SERIES, B500, T400, and T500, 4700/4800 (formerly 4070/4076)
J-42048
This tool is used to compress valve springs on the HD and MD transmissions
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