BE-Cooling Parts Mercury Mariner 2-Stroke 40 50 HP Outboard Water Pump Impeller Service Kit # 25KM283
BE-Cooling Aftermarket Impeller Kits matches factory part numbers, all-in-one kits contain OEM quality replacement parts needed for a complete Impeller replacement, for your reliable Mercury Mariner's cooling system still running strong.
 
Details：
161542 Outboard Water Pump Impeller Service Kit for Mercury Mariner 40 50 HP 2 Stroke Motors
 
  • Engine Compatibility: Used for Mercury Mariner marine 2-Stroke 40 50 HP Outboard.
  • OEM Replacement Specs: Mercury Mariner 161542.
  • Kit Contains: Gasket, Guide Plate, Key, Impeller, Drain Gasket, see package include information.
  • Be-Cooling marine parts are manufactured to rigorous quality standards for an exact fit and long service life to provide performance, protection and peace of mind.
  • Pump impellers are manufactured from premium quality rubber material for outstanding longevity and performance. Stainless steel hardware is included for superior corrosion resistance.

Application:

Compatible with Mercury Mariner Marine Outboard Motor Models Specifications:

2-Stroke 40 50 HP Motor's Water Pump
Compatible with Mercury Mariner Outboard 40 HP (International) - 0N056165 & Up
Compatible with Mercury Mariner Outboard 40 HP LIGHTNING (International) - 0N000001 THRU 0N056164
Compatible with Mercury Mariner Outboard 40 HP LIGHTNING XR (International) - 0N000513 THRU 0N056164
Compatible with Mercury Mariner Outboard 40 HP LIGHTNING XR (International) - 0N056165 & Up
Compatible with Mercury Mariner Outboard 40 HP MXL MARATHON - 0N037781 THRU 0N056164
Compatible with Mercury Mariner Outboard 40 HP MXL SEAPRO - 0N037781 THRU 0N056164
Compatible with Mercury Mariner Outboard 50 HP MH - 0N051023 THRU 0N056164
Compatible with Mercury Mariner Outboard 50 HP MH - 0N056165 & Up
 
 
Package Include:
1X Gasket 161584
1X Gasket 161583
1X Guide Plate 851857
1X Key 161551
1X Impeller 161542
2X Drain Gasket 12-19183 3
 
Genuine Official Service Manual Advice：
  • Inspect the water pump impeller every 100 operating hours or annually, especially in salt water, brackish, or dirty conditions.
  • Replace every 200 hours or every 2 years in fresh water to keep cooling strong and prevent engine damage.
  • In saltwater, swap it every 100 hours or annually – salt and sand chew up impellers fast!
  • Always replace the impeller whenever the lower unit is disassembled for any other service.
  • Don't wait for weak tell-tale stream, that's already too late!
NOTE: If you can not sure which impeller service kit fit your outboards, pls leave message to us, we will help you find the right one.

On Mar 11, 2026 at 00:59:35 PDT, seller added the following information:

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