MerCruiser® 8M0220728
MerCruiser® 7.4L MPI L29 IAC valve. Historical OEM 803149, current service number 8M0220728. Verified for 7.4L MPI L29 and 7.4L MPI MIE L29 (1998–2001).
Mercury superseded 803149 to current service number 8M0220728.
View 8M0220728 IAC Valve Page8M0220728 / 803149 is the L29-specific IAC valve. Do not substitute for 8M0239245 (pre-L29 MPI families) or 8M0181068 (ECM-555). Verify L29 engine designation and serial number before ordering.
Verified Engine Applications
Application rows are derived from the verified Mercury/Quicksilver fitment matrix.
| Engine Model | Years | Serial Range | Status |
|---|---|---|---|
| MerCruiser® 7.4L MPI L29 — 454 V8 | 1998–2001 | 0L010003–0M024330 | Verified |
| MerCruiser® 7.4L MPI MIE L29 — 454 V8 | 1998–2001 | 0L010003–0L674613 | Verified |
| MerCruiser® 350 MAG MPI — 350 V8 | 1999 | 0L331599–0L335999 | Verified |
| MerCruiser® 350 MAG MPI — 350 V8 | 1999–2001 | 0L340000–0M299999 | Verified |
| MerCruiser® 350 MAG MPI Horizon MIE — 350 V8 | 1999–2001 | 0L304700–0M299999 | Verified |
| MerCruiser® 350 MAG MPI MIE — 350 V8 | 1999–2001 | 0L302200–0M299999 | Verified |
| MerCruiser® 350 MAG MPI Ski — 350 V8 | 1999–2001 | 0L304600–0M299999 | Verified |
| MerCruiser® MX 6.2L MPI — 377 V8 | 2000–2001 | 0L680003–0M299999 | Verified |
Complete System — All Components
Components shown are derived from the verified fitment matrix for each engine row. DTS applications may have blank IAC / TPS fields — this is correct per Mercury documentation. Verify your exact engine model and serial number before ordering any component.
MerCruiser® 7.4L MPI L29 — 454 V8
1998–2001 · 0L010003–0M024330
MerCruiser® 7.4L MPI MIE L29 — 454 V8
1998–2001 · 0L010003–0L674613
MerCruiser® 350 MAG MPI — 350 V8
1999 · 0L331599–0L335999
MerCruiser® 350 MAG MPI — 350 V8
1999–2001 · 0L340000–0M299999
MerCruiser® 350 MAG MPI Horizon MIE — 350 V8
1999–2001 · 0L304700–0M299999
MerCruiser® 350 MAG MPI MIE — 350 V8
1999–2001 · 0L302200–0M299999
MerCruiser® 350 MAG MPI Ski — 350 V8
1999–2001 · 0L304600–0M299999