Kustom Products Inc is THE go to specialist when it comes to Engine Conversion Harnesses.  Our Engine Swap Harnesses include a Detroit Conversion Harness, a Caterpillar Conversion Harness, and a Cummins Conversion Harness.  The Kustom Engine Swap Wiring Harnesses are complete Custom Engine Harnesses that include everything from the ECM Wiring Harness to Engine Adapters and Adaptor Harnesses to Dash Harnesses. If you are considering an Engine Upgrade or Engine Conversion, take a look at the Kustom Products Custom Conversion Harnesses.