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4642089A5 Water Pump Impeller Repair Kit for Mercury Mariner Outboard 6 15 HP

4642089A5 Water Pump Impeller Repair Kit for Mercury Mariner Outboard 6 15 HP

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$63.69
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This Water Pump Impeller Repair Kit is a replacement water pump impeller repair kit compatible with Mercury Mariner outboard engines (6-15 HP) and matches OEM Part# 46-42089A5.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.

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Product Overview

This water pump impeller repair kit contains all necessary components to restore cooling system function on Mercury and Mariner outboard motors. Designed for 6-15 HP models, this kit ensures reliable water flow to prevent engine overheating. Ideal for boat owners and marine mechanics performing routine maintenance.

Key Features & Performance

  • Premium rubber impeller provides consistent water pumping for optimal engine cooling
  • Includes gaskets, seals, and O-rings for a complete rebuild
  • Corrosion-resistant materials extend service life in saltwater environments
  • Precision-molded to OEM specifications for perfect fitment
  • Easy to install with basic hand tools

Fitment & Compatibility

  • Mercury outboard 6 HP, 8 HP, 9.9 HP, 15 HP (select years)
  • Mariner outboard 6 HP, 8 HP, 9.9 HP, 15 HP (select years)

Common Uses

  • Replacing worn or damaged water pump impeller on small outboard engines
  • Annual maintenance to prevent overheating and engine damage
  • Restoring cooling system performance after debris clogging
  • Rebuilding water pump assembly during lower unit service

Technical Specifications

  • Part Number(s): 46-42089A5
  • Material: Rubber impeller, stainless steel insert
  • Fitment: Mercury/Mariner 6-15 HP 2-stroke and 4-stroke outboards

Frequently Asked Questions

Q: Is this impeller kit compatible with both 2-stroke and 4-stroke Mercury outboards? A: Yes, the 46-42089A5 kit fits both 2-stroke and 4-stroke Mercury and Mariner outboards within the 6-15 HP range.

Q: Does the kit include the housing or only the impeller and seals? A: This is a repair kit that includes the impeller, gaskets, seals, and O-rings; the water pump housing is not included.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.

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