Holley EFI 558-122 Engine Wiring Harness
Holley EFI 558-122 Engine Wiring Harness
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Holley EFI 558-122 Engine Wiring Harness

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Key item features

  • Plug and Play Coyote Main Engine Harness
  • Connectors are labeled for easy identification
  • Terminated with Ford TPS and IAC Connectors for DBW to Cable Driven Throttle Body Conversions (99-04 Style Connectors)
  • Includes Power Tap Connector for additional powers and grounds for sensors or solenoids
  • Single CAN connector for optional accessories, such as the Holley EFI Digital Dash (553-106)
  • Optional Fuel and Oil Pressure transducer connectors pre-terminated for datalogging or gauge monitoring
Current price is $972.95
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  • Free 30-day returns

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Columbus, 43215
Arrives by Mon, Feb 9
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Sold and shipped by SuperShops
4.405017921146953 stars out of 5, based on 279 seller reviews(4.4)
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Comparison Chart:
Vehicle makeFordHolley EFI 558-122 Engine Wiring HarnessGMHolley EFI 558-220 GDI Sub Harness - Early LTx EngineGMHolley EFI 558-221 GDI Sub Harness - Late LTx EngineChevy500434 57 Chevy Classic Update Wiring SystemPackard1999-2002 LS1 Engine Wiring Harness, ExtendedHPHolley EFI 558-500 Fuel Injection Harness-Holley EFI 558-446 Pro Dash Service Harness
Vehicle modelF150, MUSTANGHolley EFI 558-122 Engine Wiring HarnessLTxHolley EFI 558-220 GDI Sub Harness - Early LTx EngineLTxHolley EFI 558-221 GDI Sub Harness - Late LTx Engine-500434 57 Chevy Classic Update Wiring System-1999-2002 LS1 Engine Wiring Harness, ExtendedLS1/6Holley EFI 558-500 Fuel Injection Harness-Holley EFI 558-446 Pro Dash Service Harness
Vehicle year2011Holley EFI 558-122 Engine Wiring Harness-Holley EFI 558-220 GDI Sub Harness - Early LTx Engine-Holley EFI 558-221 GDI Sub Harness - Late LTx Engine1957500434 57 Chevy Classic Update Wiring System19991999-2002 LS1 Engine Wiring Harness, Extended-Holley EFI 558-500 Fuel Injection Harness-Holley EFI 558-446 Pro Dash Service Harness
Automotive electrical part & accessory typeConnectorsHolley EFI 558-122 Engine Wiring HarnessWiresHolley EFI 558-220 GDI Sub Harness - Early LTx EngineWiresHolley EFI 558-221 GDI Sub Harness - Late LTx EngineWires500434 57 Chevy Classic Update Wiring SystemWires1999-2002 LS1 Engine Wiring Harness, ExtendedWiresHolley EFI 558-500 Fuel Injection HarnessWiresHolley EFI 558-446 Pro Dash Service Harness
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