Click to expand Tap to zoom AA04RSP-4DRC | 4 Pin AMP to Caterpillar Adapter by Sensor-1 Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $51.00 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Adapt 4-Pin AMP Monitor to Caterpillar Challenger 85C