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Adapter & Extension Harnesses

Make quick work of installing your Holley engine harness by using our sensor adapter and extension harnesses. These harnesses make Holley's universal main harnesses application specific.

Part # Description Price Qty
100 02131 100-02131 Coolant Temperature Sensor Extension Harness 18 inches for GM TPI LT1 LS-Series $20.00
100 02377 100-02377 Oil and Fuel Pressure Sensor Extension Harness 24 inches for Holley® 100 PSI Stainless Fuel or Oil Pressure Sensor $25.00
100 02111 100-02111 TPS Adapter Harness - 92-97 LT1 TPS to Holley 558-102 Main Harness $25.00
100 02112 100-02112 CKP Adapter Harness - 96-97 LT1 CKP to Holley 558-102 Main Harness $25.00
100 02113 100-02113 CMP Adapter Harness - Gen IV LS-Series to Holley 558-102 Main Harness $25.00
100 02114 100-02114 Knock KS Adapter Harness - SBC LT1 to Holley 558-102 Main Harness $25.00
100 02115 100-02115 MAP Adapter Harness - 92-97 LT1 to Holley 558-102 Main Harness $25.00
100 02116 100-02116 Idle Air Control Valve IAC - 85-92 TPI and 92-93 LT1 to Holley 558-102 Main Harness $35.00
100 02120 100-02120 Male to Male Four Wire CAN Bus Adapter Harness for Holley EFI Systems $25.00

Wire Harnesses

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