MerCruiser® 861126A1 Cooler-Mounted Fuel-Pressure Regulator
MerCruiser® 861126A1 Cooler-Mounted Fuel-Pressure Regulator
No newer Mercury supersession verified in the approved dataset.
This is a cooler-mounted regulator rated at 43 PSI. The 7.4L L29 uses BOTH a rail regulator (802630T01 / 8M0069803) AND this cooler regulator simultaneously — verify your exact fuel-system architecture.
This cooler-mounted regulator applies to the 454 MAG MPI, 7.4L MPI L29, and 502 Magnum MPI engine families. Verify your exact engine model, serial number, and existing OEM part number before ordering.
Verified Engine Applications
Application relationships are verified against Mercury Marine primary source documentation.
Customers Replacing This Part Also Consider
Related components are shown only for verified engine/application matches. The 454 MAG MPI and 7.4L L29 use different IAC, TPS, and injector families — do not mix.
MerCruiser® 454 MAG MPI — 454 V8 — 1999–2001
MerCruiser® 454 MAG MPI Horizon MIE — 454 V8 — 1999–2001
MerCruiser® 7.4L MPI L29 — 454 V8 — 1998–2001
MerCruiser® 7.4L MPI MIE L29 — 454 V8 — 1998–2001
MerCruiser® 502 Magnum MPI — 502 V8 — 1999–2001
MerCruiser® 8.2L MPI MIE — 502 V8 — 1999–2001
MerCruiser® MX 6.2L MPI Horizon ECM-555 — 377 V8 — 2002–2004
MerCruiser® MX 6.2L MPI Horizon MIE ECM-555 — 377 V8 — 2002–2004
MerCruiser® MX 6.2L MPI MIE ECM-555 — 377 V8 — 2002–2004
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