Sold out Out of stock HEI GM Small Cap Ignition Harness 558-304 The Holley EFI HEI GM Small Cap Ignition Harness (part number 558-304) is a direct-fit replacement part. HEI Ignition Harness for Avenger EFI, HP EFI & Dominator EFISpecifications:Harness... $119.23 $76.05 Out of stock Compare
Sold out Out of stock Dominator EFI Auxiliary Harness 558-403 The Holley EFI Dominator EFI Auxiliary Harness (part number 558-403) is a direct-fit replacement part. Dominator EFI Connector J3 Auxiliary HarnessSpecifications:Harness TypeAuxiliaryEmissions: Not... $297.88 $190.00 Out of stock Compare
Sold out Out of stock Digital Dash I/O Adapter w/Unterminated Vehicle Harness 558-433 The Holley EFI Digital Dash I/O Adapter w/Unterminated Vehicle Harness (part number 558-433) is a direct-fit replacement part. Digital Dash I/O Adapter with unterminated Vehicle... $573.75 $374.95 Out of stock Compare
Sold out Out of stock Transmission Control Harness - 1998+ Ford 4R70W/4R75W 558-470 The Holley EFI Transmission Control Harness - 1998+ Ford 4R70W/4R75W (part number 558-470) is a direct-fit replacement part. For 1998+ Ford 4R70W/4R75WFeatures:Plug and play fully terminated... $442.07 $285.95 Out of stock Compare
Sold out Out of stock Dominator EFI Auxiliary Harness 558-402 The Holley EFI Dominator EFI Auxiliary Harness (part number 558-402) is a direct-fit replacement part. Dominator EFI Connector J2B Auxiliary HarnessSpecifications:Harness TypeAuxiliaryEmissions: Not... $297.88 $190.00 Out of stock Compare
Sold out Out of stock Injector Driver Harness 558-219 The Holley EFI Injector Driver Harness (part number 558-219) is a direct-fit replacement part. Plug and Play with Dominator ECUFeatures:Designed to work with the Holley EFI 554-143 injector driver... $536.34 $342.11 Out of stock Compare
Sold out Out of stock Gen III HEMI Main Harness Late w/ TPS and Idle Air Control Connections 558-116 The Holley EFI Gen III HEMI Main Harness Late w/ TPS and Idle Air Control Connections (part number 558-116) is a direct-fit replacement part. Gen III HEMI Main Harness w/Throttle Position Sensor &... $1,266.43 $849.95 Out of stock Compare
Sold out Out of stock Dominator EFI Auxiliary Harness 558-401 The Holley EFI Dominator EFI Auxiliary Harness (part number 558-401) is a direct-fit replacement part. Dominator EFI Connector J2A Auxiliary HarnessFeatures:J2A Connector#2 Wide band oxygen sensor... $378.49 $242.95 Out of stock Compare
Sold out Out of stock Ford V8 Injector Harness 558-213 The Holley EFI Ford V8 Injector Harness (part number 558-213) is a direct-fit replacement part. Evenly spaced Ford V8 Injector Harness for Jetronic "Bosch EV1" style InjectorsSpecifications:Harness... $350.54 $223.59 Out of stock Compare
Sold out Out of stock Crank/Cam Ign. Harness. Fully terminated harness. 558-431 The Holley EFI Crank/Cam Ign. Harness. Fully terminated harness. (part number 558-431) is a direct-fit replacement part. Crank/Cam Ign. Harness for Ferrous Crank/Magnetic Cam Hall Effect Sensors... $173.67 $110.78 Out of stock Compare
Sold out Out of stock Ford 2V and 4V Modular Main Harness 558-108 The Holley EFI Ford 2V and 4V Modular Main Harness (part number 558-108) is a direct-fit replacement part. Ford 2V & 4V Modular Main Harness, For HP EFI & Dominator EFIFeatures:For Dominator and HP... $1,368.21 $872.72 Out of stock Compare
Sold out Out of stock Connector J1A/B Input/Outputs Auxiliary Harness 558-400 The Holley EFI Connector J1A/B Input/Outputs Auxiliary Harness (part number 558-400) is a direct-fit replacement part. For Dominator, HP, Terminator X and Terminator X MaxFeatures:(8) Metri-Pack... $226.84 $144.69 Out of stock Compare
