Shop by Part

MerCruiser® IAC Valves

Idle Air Control valve replacements for MerCruiser® EFI and MPI engines. Each product family is referenced by both historical OEM number and current Mercury replacement.

IAC valve compatibility is engine-generation specific. The earlier EFI/TBI and 454 MAG MPI families use a different IAC architecture than the 7.4L L29, ECM-555, and 496/8.1L families. Do not select by displacement alone.

Have Your OEM Part Number?

Enter your existing MerCruiser® IAC OEM number to find the current replacement family.

IAC Valve Families

8M0239245replaces 805224A1

MerCruiser® 8M0239245 IAC Valve

Earlier EFI/TBI, 454 MAG MPI, 502 Magnum MPI — 1998–2001 applications

Sourcing in Progress

8M0220728replaces 803149

MerCruiser® 8M0220728 IAC Valve

7.4L MPI L29 — 1998–2001 applications

Sourcing in Progress

8M0181068replaces 862998

MerCruiser® 8M0181068 IAC Valve

ECM-555 MPI, 496 Mag, 8.1L MIE — verified mechanical-throttle applications

Sourcing in Progress

Shop by Engine

Earlier EFI / TBI805224A1 / 8M0239245 454 MAG MPI / 7.4L MPI454 MAG → 805224A1; 7.4L L29 → 803149 ECM-555 MPI862998 / 8M0181068 496 Mag / 8.1L MIE862998 / 8M0181068

Related Part Categories

Fuel Injectors TPS Sensors MAP / MAPT Sensors Fuel-Pressure Regulators Seals & Service Parts