MerCruiser® 8M0069803 Rail-Mounted Fuel-Pressure Regulator
MerCruiser® 8M0069803 Rail-Mounted Fuel-Pressure Regulator
Both 802630T01 (7.4L L29 application) and 881692001 (496 Mag / 8.1L MIE earlier production) route to current Mercury replacement 8M0069803. These are distinct engine applications — verify your exact engine model and production period.
This is a rail-mounted regulator. The 7.4L L29 also uses a cooler-mounted regulator (861126A1) simultaneously — verify your complete fuel-system architecture. The 496 Mag / 8.1L MIE later production may use a different regulator (892681) — verify production period.
This rail regulator applies to the 7.4L MPI L29 (802630T01) and 496 Mag / 8.1L MIE earlier production (881692001). Later 496/8.1L production may use 892681 instead. Verify your exact engine model, production period, serial number, and existing OEM part number before ordering.
Aftermarket cross-reference: Sierra 18-7663 — aftermarket replacement cross-reference. Verify fitment by engine model and serial number before ordering. Sierra part numbers are aftermarket references only and are not Mercury OEM numbers.
Verified Engine Applications
Application relationships are verified against Mercury Marine primary source documentation. Production-period regulator differences for 496/8.1L are preserved.
Customers Replacing This Part Also Consider
Related components are shown only for verified engine/application matches. The 7.4L L29 and 496/8.1L use different injector and sensor families — do not mix recommendation sets.
MerCruiser® 7.4L MPI L29 — 454 V8 — 1998–2001
MerCruiser® 7.4L MPI MIE L29 — 454 V8 — 1998–2001
MerCruiser® 8.1L MIE — 496 V8 — 2001–2004
MerCruiser® 8.1L HO MIE — 496 V8 — 2001–2004
MerCruiser® 496 Mag — 496 V8 — 2001–2004
MerCruiser® 496 Mag HO — 496 V8 — 2001–2004
MerCruiser® 496 Mag DTS — 496 V8 — 2001–2004
MerCruiser® 496 Mag HO DTS — 496 V8 — 2001–2004