model02856

Thermostat housing for Mercruiser GM 4.3L - 8.2L, MD861188A1

Lieferung Wed 19. Aug - Mon 24. Aug 2026 **
24 months statutory warranty

For Mercruiser V6 / V8 models with closed cooling system.
Ref. no. 861188A1

This thermostat housing is suitable for the following models:

  • Mercruiser with closed cooling system (closed cooling)
  • 4.3L
  • 4.3L, FWC (1993-2002) S/N 0F000878 - 0M614999
  • 4.3L EFI, FWC (1998-2001) S/N 0L012009 - 0M299999
  • 4.3LH, FWC (1998-2002) S/N 0L010044 - 0M614999
  • 4.3LX, FWC (1993-1997) S/N 0F001220 - 0K999999
  • 4.3LXH, FWC (1996-1997) S/N 0F803114 - 0K999999
  • 5.0L
  • 5.0L (Gen +), FWC (1998-2002) S/N 0L015751 - 0M599999
  • 5.0L EFI, FWC (1998-2001) S/N 0L012052 - 0M299999
  • 5.7L
  • 350 Mag. MPI, FWC (1998-2001) S/N 0L010019 - 0M299999
  • 350 Mag. MPI Horizon MIE (1999-2001) S/N 0L304700 - 0M299999
  • 350 Mag. MPI MIE, FWC (1998-2001) S/N 0L002008 - 0M299999
  • 5.7L, FWC (1997) S/N 0K001527 - 0K999999
  • 5.7L (Gen +), FWC (1998-2002) S/N 0L010037 - 0M599999
  • 5.7L EFI, FWC (1997-2001) S/N 0K001506 - 0M299999
  • 5.7L EFI MIE (Gen +), FWC (1997) S/N 0K040300 - 0K999999
  • 5.7L MIE, FWC (1997-2002) S/N 0K040307 - 0M316999
  • 5.7LX, RWC (1997) S/N 0K001527 - 0K999999
  • 5.7LX Bravo EFI (Gen +), FWC (1997) S/N 0K001509 - 0K999999
  • 5.7LX EFI, FWC (1997) S/N 0K001506 - 0K999999
  • 6.2L
  • MX 6.2L MPI, FWC (2000-2001) S/N 0L680003 - 0M299999
  • 7.4L
  • 454 Mag MPI, FWC (1998-2001) S/N 0L010029 - 0M024999
  • 454 Mag MPI Horizon MIE (1998-2001) S/N 0L002200 - 0L674000
  • 7.4L EFI MIE, FWC (1996-1997) S/N 0F874815 - 0K999999
  • 7.4L MPI MIE, FWC (1995-2001) S/N 0F563052 - 0M025999
  • 8.2L
  • 502 Mag. MPI, FWC (1998-2001) S/N 0L017000 - 0M024999
  • 8.2L MPI MIE, FWC (1996-2001) S/N 0F819620 - 0L674200

Replaces the following manufacturer ref. no.

  • Mercruiser 861188A1

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