Common to JM404 JM454 JM504 with 490/495/498BT engine.
Constant overflow with left rotation. Same side inlet / outlet. 15mm OD input shaft with 4 splines. 100mm x 70mm mounting bolt centres. Inlet 4xM8 threads at 38mm centres. M18x1.5 outlet thread.
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Common to JM404 JM454 JM504 with 490/495/498BT engine.
Constant overflow with left rotation. Same side inlet / outlet. 15mm OD input shaft with 4 splines. 100mm x 70mm mounting bolt centres. Inlet 4xM8 threads at 38mm centres. M18x1.5 outlet thread.