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Replacement Parts for HLY-550-1621
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Engine Management Systems, Holley EFI, Terminator X Max, Up to 8-Injectors, 8-Coils, Analog Input/Outputs, Trans Controller, Chevy, Ford, Dodge, Each
Part Number: HLY-554-153
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Oxygen Sensors, Holley EFI, Replacement, O2 Sensor, Bosch LSU Style, 3-wire, Thread-in, Wire Harness, for Sniper EFI or Terminator X Systems, Each
Part Number: HLY-554-155
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Ignition Coil Wiring Harnesses, Holley EFI, Replacement, LS Coil Harness, Plug-and-Play, OE Connectors, Not for LS1/LS6, Chevy, LS Engine, Pair
Part Number: HLY-558-321
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Sensors, Replacement, Air Temperature, Brass, 3/8 in. NPT, for Holley EFI, Pro-Jection Systems, Each
Part Number: HLY-534-20
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
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This is a custom order part. You can order this part by Contacting Us.
