Skip to content
Dealer Login About Support
20% Off Prime Line Small Engine Products
20% Off Prime Line Small Engine Products
Water Pump Repair Kit With Housing | 118-3147
SKU 118-3147

Water Pump Repair Kit With Housing | 118-3147

by SIERRA
Availability:
in stock, ready to be shipped
$175.19 - $175.19
$175.19
$175.19 - $175.19
$175.19

For Alpha One, Generation II S/N D469859 & later. Sierra Impeller repair kits are made from high-quality rubber compounds, stainless steel, and composite plastics to withstand harsh marine environments. Our kits circulate water for optimal temperature regulation - preventing overheating and costly engine repairs. Engine-specific water pump repair kits meet or exceed OEM standards. Interchangeable with 17275K05 / 817275A5.

Kit Includes

  • Drain Screw Gasket | 18-2945-9
  • Seal Ring | 18-2944-9
  • Gasket, Impeller | 18-2566-9
  • Impeller | 18-3056
  • Impeller Key | 18-3293
  • O-Ring | 18-7420-9
  • Carrier Seal | 18-2354
  • Face Seal and Tool | 18-2599
  • Impeller Plate | 18-3122
  • Impeller Gasket | 18-2564-2
OEM INTERCHANGE

Mallory: 9-48315

Mercruiser Sterndrive

  • 817275K05
  • 817275Q05
  • 817275Q4
  • 817275T4

Mercury Marine: 817275A5
A black padlock icon centered inside a black circle on a transparent checkerboard background.

Warranty

Sierra's limited lifetime warranty. Read more about warranty policies here.

California Proposition 65 Warning WARNING Cancer or Reproductive Harm — www.P65Warnings.ca.gov
  • Impellers manufactured from high quality rubber compounds to deliver and circulate water for optimum temperature regulation and overheat prevention
  • Periodic maintenance of the onboard water pump reduces downtime and the possibility of catastrophic engine failure resulting in high repair costs
  • High quality rubber compound, stainless steel, and composite plastics for superior durability in the harsh marine environment
  • Engine model specific water pump repair kits verified to meet or exceed OEM standards ensures proper fit, form, and function every time
  • Sierra's industry leading limited lifetime warranty against manufacturer defects and workmanship
  • Designed to resist wear and tear, extending the lifespan of the impeller and maintining performance over time
  • Premium wear resistance to maintain efficient water flow as the impeller ages
  • Impellers designed to adjust and flex in many conditions, ensuring smooth and repeatable operation reducing the risk of damage
  • Components are designed to withstand high operating temperatures generated by the engine

Logistics

  • Dimensions parcel depth, ["]: 5.38
  • Dimensions parcel height, ["]: 5.38
  • Dimensions parcel width, ["]: 5.38
  • Parcel weight, [lbs]: 1.69

Engine Fitment for 118-3147

Brand Engine Model Year Serial Number Range Horsepower
Mercruiser Stern Drive ALPHA ONE GEN.II 1991 0D469859-0F679999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1992 0D469859-0F679999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1993 0D469859-0F679999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1994 0D469859-0F679999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1995 0D469859-0F679999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1996 0F680000-0K999999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1997 0F680000-0K999999 —
Mercruiser Stern Drive ALPHA ONE GEN.II 1998-UP 0L100040-up —
Mercury Marine 225 MARATHON CARB 1994 0G245605-0G760299 225
Mercury Marine 225 SEAPRO CARB 1994 0G245605-0G760299 225
Mercury Marine 225 (3.0L CARB) 1994 0D280813-0G760299 225
Mercury Marine 225 SEAPRO CARB 1995 0G245605-0G760299 225
Mercury Marine 225 MARATHON CARB 1995 0G245605-0G760299 225
Mercury Marine 225 (3.0L EFI) 1995 0G129222-0G760299 225
Mercury Marine 225 (3.0L CARB) 1995 0D280813-0G760299 225
Mercury Marine 250 EFI 1995 0G129222-0G760299 250
Mercury Marine 225 (3.0L EFI) 1996 0G129222-0G760299 225
Mercury Marine 225 SEAPRO CARB 1996 0G245605-0G760299 225
Mercury Marine 225 MARATHON CARB 1996 0G245605-0G760299 225
Mercury Marine 225 (3.0L CARB) 1996 0D280813-0G760299 225
Mercury Marine 250 EFI 1996 0G129222-0G760299 250
Mercury Marine 200 DFI 1997 0G386496-0G589999 200
Mercury Marine 225 (3.0L EFI) 1997 0G129222-0G760299 225
Mercury Marine 225 MARATHON CARB 1997 0G245605-0G760299 225
Mercury Marine 225 SEAPRO CARB 1997 0G245605-0G760299 225
Mercury Marine 225 (3.0L CARB) 1997 0D280813-0G760299 225
Mercury Marine 250 EFI 1997 0G129222-0G760299 250
Mercury Marine 200 DFI 1998 0G590000-0G760299 200
Mercury Marine 225 (3.0L EFI) 1998 0G129222-0G760299 225
Mercury Marine 225 DFI 1998 0G590000-0G760299 225
Mercury Marine 225 MARATHON CARB 1998 0G245605-0G760299 225
Mercury Marine 225 SEAPRO CARB 1998 0G245605-0G760299 225
Mercury Marine 225 (3.0L EFI) 1998 0G760300-0T408999 225
Mercury Marine 225 (3.0L CARB) 1998 0D280813-0G760299 225
Mercury Marine 250 EFI 1998 0G129222-0G760299 250
Mercury Marine 250 EFI 1998 0G760300-0T408999 250
Mercury Marine 300 EFI SUPERMAGNUM 1998 0G610221-0T105297 —
Mercury Marine 200 DFI 1999 0G760300-0G960499 200
Mercury Marine 225 DFI 1999 0G760300-0G960499 225
Mercury Marine 225 SEAPRO CARB 1999 0G760300-0T408999 225
Mercury Marine 225 MARATHON CARB 1999 0G760300-0T408999 225
Mercury Marine 225 (3.0L CARB) 1999 0G760300-0T408999 225
Mercury Marine 225 (3.0L EFI) 1999 0G760300-0T408999 225
Mercury Marine 250 EFI 1999 0G760300-0T408999 250
Mercury Marine 300 EFI SUPERMAGNUM 1999 0G610221-0T105297 —
Mercury Marine 200 DFI 2000 0G960500-0T178499 200
Mercury Marine 225 SEAPRO CARB 2000 0G760300-0T408999 225
Mercury Marine 225 MARATHON CARB 2000 0G760300-0T408999 225
Mercury Marine 225 (3.0L CARB) 2000 0G760300-0T408999 225
Mercury Marine 225 (3.0L EFI) 2000 0G760300-0T408999 225
Mercury Marine 225 DFI 2000 0G960500-0T178499 225
Mercury Marine 250 EFI 2000 0G760300-0T408999 250
Mercury Marine 300 EFI SUPERMAGNUM 2000 0G610221-0T105297 —
Mercury Marine 250XB EFI 2000 0G980600-0T800999 —
Mercury Marine 200 DFI 2001 0T178500-0T598999 200
Mercury Marine 225 (3.0L EFI) 2001 0G760300-0T408999 225
Mercury Marine 225 SEAPRO CARB 2001 0G760300-0T408999 225
Mercury Marine 225 MARATHON CARB 2001 0G760300-0T408999 225
Mercury Marine 225 (3.0L CARB) 2001 0G760300-0T408999 225
Mercury Marine 225 DFI 2001 0T178500-0T598999 225
Mercury Marine 250 EFI 2001 0G760300-0T408999 250
Mercury Marine 250XB EFI 2001 0G980600-0T800999 —
Mercury Marine 200 (3.0L EFI) 2002 0T750164-0T800999 200
Mercury Marine 200 DFI 2002 0T178500-0T598999 200
Mercury Marine 3.0L EFI SEAPRO 2002 0T409000-0T800999 225
Mercury Marine 225 (3.0L EFI) 2002 0T409000-0T800999 225
Mercury Marine 3.0L EFI MARATHON 2002 0T409000-0T800999 225
Mercury Marine 225 DFI 2002 0T178500-0T598999 225
Mercury Marine 250 EFI 2002 0T409000-0T800999 250
Mercury Marine 250XB EFI 2002 0G980600-0T800999 —
Mercury Marine 200 (3.0L EFI) 2003 0T750164-0T800999 200
Mercury Marine 200 (3.0L DFI)(DTS) 2003 0T980000-1B417701 200
Mercury Marine 200 DFI 2003 0T599000-0T800999 200
Mercury Marine 225 (3.0L-DFI)(DTS) 2003 0T599000-1B417701 225
Mercury Marine 225 DFI 2003 0T599000-0T800999 225
Mercury Marine 225 (3.0L EFI) 2003 0T409000-0T800999 225
Mercury Marine 3.0L EFI SEAPRO 2003 0T409000-0T800999 250
Mercury Marine 3.0L EFI MARATHON 2003 0T409000-0T800999 250
Mercury Marine 250 EFI 2003 0T409000-0T800999 250
Mercury Marine 200 DFI 2004 0T801000-1B417701 200
Mercury Marine 200 (3.0L EFI) 2004 0T801000-1B417701 200
Mercury Marine 200 (3.0L DFI)(DTS) 2004 0T980000-1B417701 200
Mercury Marine 225 (3.0L-DFI)(DTS) 2004 0T599000-1B417701 225
Mercury Marine 225 (3.0L EFI) 2004 0T801000-1B417701 225
Mercury Marine 225 (3.0L EFI) MARATHON 2004 0T801000-1B417701 225
Mercury Marine 225 (3.0L EFI) SEAPRO 2004 0T801000-1B417701 225
Mercury Marine 225 DFI 2004 0T801000-1B417701 225
Mercury Marine 250 EFI 2004 0T801000-1B417701 250
Mercury Marine 200 DFI 2005 0T801000-1B417701 200
Mercury Marine 200 (3.0L EFI) 2005 0T801000-1B417701 200
Mercury Marine 200 (3.0L DFI)(DTS) 2005 0T980000-1B417701 200
Mercury Marine 225 (3.0L-DFI)(DTS) 2005 0T599000-1B417701 225
Mercury Marine 225 (3.0L EFI) MARATHON 2005 0T801000-1B417701 225
Mercury Marine 225 (3.0L EFI) SEAPRO 2005 0T801000-1B417701 225
Mercury Marine 225 DFI 2005 0T801000-1B417701 225
Mercury Marine 225 (3.0L EFI) 2005 0T801000-1B417701 225
Mercury Marine 250 EFI 2005 0T801000-1B417701 250
Mercury Marine 200 DFI 2006 0T801000-1B417701 200
Mercury Marine 200 (3.0L EFI) 2006 0T801000-1B417701 200
Mercury Marine 200 (3.0L DFI)(DTS) 2006 0T980000-1B417701 200
Mercury Marine 200 (3.0L EFI) 2006 1B417702-1B504988 200
Mercury Marine 200 DFI 2006 1B417702-1B504988 200
Mercury Marine 225 (3.0L EFI) MARATHON 2006 0T801000-1B417701 225
Mercury Marine 225 (3.0L-DFI)(DTS) 2006 0T599000-1B417701 225
Mercury Marine 225 (3.0L EFI) 2006 0T801000-1B417701 225
Mercury Marine 225 (3.0L EFI) SEAPRO 2006 0T801000-1B417701 225
Mercury Marine 225 DFI 2006 0T801000-1B417701 225
Mercury Marine 225 (3.0L EFI) 2006 1B417702-1B504988 225
Mercury Marine 225 (3.0L-DFI)(DTS) 2006 1B417702-1B504988 225
Mercury Marine 225 DFI 2006 1B417702-1B504988 225
Mercury Marine 250 EFI 2006 0T801000-1B417701 250
Mercury Marine 250 EFI 2006 1B417702-1B504988 250
Mercury Marine 200 (3.0L DFI)(DTS) 2007 1B417702-1B504988 200
Mercury Marine 225 (DFI) 3.0L 0T801000-1B417701 —
Mercury Marine 225 (DFI) 3.0L 1B417702-1B504988 —

Free Shipping

When you spend $50+

Contact Support

Talk to a real human on our team

Find a Dealer

Find your local SIERRA or Dometic dealer

Interchange for Water Pump Repair Kit With Housing | 118-3147

Mallory: 9-48315

Mercruiser Sterndrive

  • 817275K05
  • 817275Q05
  • 817275Q4
  • 817275T4

Mercury Marine: 817275A5

*Can't find what you're looking for? Search the entire SIERRA catalog with our parts-finder tool

60 YEARS OF SIERRA

SIERRA has a 60-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. The SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive brands formerly known as Shields and Moeller.

Learn More