SKU: 22877255503

Water Pump Repair Kit – Fits Mercury/Mariner Outboards 75-225HP & MerCruiser Alpha One Stern Drives (Replaces 96148Q8, 46-96148A8)

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Description

Water Pump Repair Kit – Fits Mercury/Mariner Outboards 75-225HP & MerCruiser Alpha One Stern Drives (Replaces 96148Q8, 46-96148A8)Water Pump Repair Kit Fits Mercury Mariner Outboards 75 225HP & MerCruiser Alpha One Stern Drives This water pump repair kit provides the essential components needed to restore the cooling system on a wide range of Mercury Mariner outboards and MerCruiser stern drives. It is designed for 75 225HP 2 Stroke outboards (4 cylinder and V6 models) and MerCruiser Pre Alpha, R, MR, and Alpha One stern drives (1970 1990) within the serial number range 2495186

Water Pump Repair Kit – Fits Mercury/Mariner Outboards 75-225HP & MerCruiser Alpha One Stern Drives

This water pump repair kit provides the essential components needed to restore the cooling system on a wide range of Mercury/Mariner outboards and MerCruiser stern drives. It is designed for 75-225HP 2-Stroke outboards (4-cylinder and V6 models) and MerCruiser Pre-Alpha, R, MR, and Alpha One stern drives (1970-1990) within the serial number range 2495186 to 0D469858.

Engineered as a direct replacement for multiple OEM part numbers, this kit ensures a precise fit and restores cooling performance. It is cross-compatible with Mercury parts 46-96148A8, 96148Q8, 96148T8, 96148B8, 96148A5, and Sierra parts 18-3217, 18-3316, 18-3517.

  • Complete Kit: Includes a neoprene rubber impeller, housing, gaskets, seals, and other necessary hardware for a full replacement.
  • Durable Materials: Features a marine-grade key plate, nylon PA66 plastic housing, and neoprene seals for longevity in marine environments.
  • Direct Installation: Designed to fit the original water pump housing without modifications; follow your factory service manual for installation.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Mercury 46-96148A8 / 96148Q8 / 96148T8 / 96148B8 / 96148A5
Quicksilver 96148Q8
Sierra 18-3217 / 18-3316 / 18-3517
Marinepro 96148Q8

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Mercury/Mariner Outboards

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury/Mariner 4-Cylinder 65 2-Stroke Serial #1542745-3293183 46-96148A8
Mercury/Mariner 4-Cylinder 70 2-Stroke Serial #1503959-1566239 46-96148A8
Mercury/Mariner 4-Cylinder 75 2-Stroke Serial #6432901 & Up 46-96148A8
Mercury/Mariner 4-Cylinder 80 2-Stroke Serial #2559001-6432900 46-96148A8
Mercury/Mariner 4-Cylinder 85 2-Stroke Serial #1566240-4861998 46-96148A8
Mercury/Mariner 4-Cylinder 90 2-Stroke Serial #1766824 & Up 46-96148A8
Mercury/Mariner 6-Cylinder 100SS 2-Stroke Serial #1503332-2836018 46-96148A8
Mercury/Mariner 6-Cylinder 110 2-Stroke Serial #1870204-2314955 46-96148A8
Mercury/Mariner 6-Cylinder 115 2-Stroke Serial #2836019 & Up 46-96148A8
Mercury/Mariner 6-Cylinder 125 2-Stroke Serial #2314956-2839368 46-96148A8
Mercury/Mariner 6-Cylinder 135 2-Stroke Serial #2839369-3293233 46-96148A8
Mercury/Mariner 6-Cylinder 140 2-Stroke Serial #3293234 & Up 46-96148A8
Mercury/Mariner 6-Cylinder 150 2-Stroke Serial #3502806 & Up 46-96148A8
Mercury/Mariner 6-Cylinder 175 2-Stroke Serial #4301235 & Up 46-96148A8
Mercury/Mariner 6-Cylinder 200 2-Stroke Serial #4839034 & Up 46-96148A8 Not including V-200 DFI 3.0L
Mercury/Mariner 6-Cylinder 220 2-Stroke Serial #OB117316 & Up 46-96148A8
Mercury/Mariner V6 V150, V175, V200, V225 2-Stroke All 46-96148A8
Mercury/Mariner XR4/Magnum II All 2-Stroke All 46-96148A8

MerCruiser Stern Drives

Brand Model Years OEM Part No. Notes
MerCruiser Pre-Alpha 1970-1983 46-96148A8
MerCruiser R Up to 1983 46-96148A8
MerCruiser MR 1984-1985 46-96148A8
MerCruiser Alpha One 1983-1990 46-96148A8 Serial #2495186-0D469858

Technical Specifications

Specification Value
Product Type Water Pump Repair Kit
Installation Direct replacement; follow factory service manual
Connection Direct installation to water pump housing
Housing Material Marine grade key plate and cup, nylon PA66 plastic housing
Housing Color Black/Natural
Dimensions Package: 152mm × 101mm × 80mm (5.98" × 3.98" × 3.15")
Weight 0.30kg (10.72 oz)
Fitting Type Direct fit
Other Technical Attributes Neoprene rubber water pump impeller, CR neoprene rubber impeller seals

Package Contents

  • 1 x Water Pump Impeller (Replaces 46-96148A8)
  • 1 x Impeller Housing
  • 1 x Impeller Key
  • 1 x Face Plate
  • 2 x Gaskets
  • 1 x Seal
  • 1 x Water Tube Guide Sleeve
  • 1 x O-ring
  • 2 x Drain Plug Washers

Installation Guide

  1. Disconnect Power: Disconnect the battery before starting work.
  2. Drain Gear Lube: Drain the gear lube from the lower unit.
  3. Remove Lower Unit: Unbolt and carefully detach the lower unit (gearcase) from the outboard leg.
  4. Access Pump: Locate and unbolt the water pump housing.
  5. Remove Old Components: Remove the old housing, impeller, wear plate, gaskets, and seals. Note their orientation.
  6. Clean Surfaces: Thoroughly clean all mating surfaces, ensuring they are free of old gasket material and corrosion.
  7. Install New Components: Install the new gaskets, wear plate, and impeller key.
  8. Install Impeller: Slide the new impeller onto the driveshaft. Rotate the shaft clockwise while pushing down to seat the vanes correctly inside the housing.
  9. Secure Housing: Install the new housing and torque the bolts to the manufacturer's specified values.
  10. Reinstall Lower Unit: Reattach the lower unit to the engine leg and tighten all bolts securely.
  11. Refill and Test: Refill the lower unit with fresh gear lube. Reconnect the battery and test the engine's cooling system operation in water, checking for a strong tell-tale stream.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Mercury engine?

A: Check the serial number of your engine. This kit fits specific serial ranges for 75-225HP 2-stroke outboards and MerCruiser Alpha One stern drives from 1970-1990 (serial #2495186-0D469858). Always refer to the detailed compatibility tables on this page to verify your specific model and serial number before ordering.

Q: What are the signs my water pump is failing?

A: Common signs of a failing water pump include the engine overheating (especially at idle or low speeds), a weak or non-existent water stream from the "telltale" outlet, or finding a brittle, cracked, or deformed impeller during a routine inspection.

Q: How often should I replace the water pump impeller?

A: For preventative maintenance, it is highly recommended to replace the water pump impeller every 1 to 2 years, or every 100-200 hours of operation. The interval may vary based on usage (e.g., saltwater vs. freshwater) and operating conditions.

Q: OEM vs. Aftermarket?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22877255503

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I found reloading my Amazon gift card balance much easier than expected. The process was simple and took about 5 minutes at most. Here are the exact steps to do it: ​Login: In the Amazon app or on Amazon.com, log in to your account. ​ Menu: Tap the 3 lines on the bottom right corner of your screen (next to Rufus, Amazon's AI). ​ Find Category: In the section highlighted "Shop by category," tap on Gifting & Registry (3rd option down in that section) and a drop-down menu will appear. ​ Select Gift Cards: On the drop-down menu, tap Gift Cards (first option). ​ Choose Your Action: "The Gift Card Shop" will appear. There you will have three options: "Redeem a gift card," "View your balance," and "Reload." ​ Start Reload: To add funds, tap Reload. ​ Select Type: Scroll down to "Add funds directly to your Amazon Gift Card balance" and tap which reload type you want (one-time, low balance auto-reload, or scheduled auto-reload). ​ Enter Amount: Choose your reload amount. The default is $25, but you can type in your own amount as well (the minimum amount is $5.00). ​ Finish: Tap the orange "Buy Now" tab. ***I used the Amazon app using the u i OneUI version 8.0 these Amazon app on Android version 16 (Baklava) on a Samsung Galaxy S25 Ultra. Others may have a slight variation of the menu setup on the Amazon app.***
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Easy way to add balance
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Reloading my Amazon gift card balance has been easy and convenient. I like using it when I want to keep a little money set aside for Amazon orders or make checkout quicker without thinking about which card I want to use. The process is straightforward, the balance shows up fast, and it has been reliable every time I have used it. It is also helpful for budgeting because I can add a set amount and then use that balance for regular purchases. Nothing complicated about it, which is exactly why I like it.
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Not a glamorous review, but a genuinely useful tip for Subscribe & Save users. I reload about $100 to my gift card balance once a month, a week or two before my S&S order processes. Amazon pulls each Subscribe & Save item as a separate transaction, which means 10+ individual charges hitting your bank account on before or on ship day. A headache for budgeting and a minor anxiety trigger if you're watching your account for unauthorized activity. Loading the balance first consolidates everything into one clean transaction. Your S&S order then pulls from the gift card balance rather than your card directly, and your bank statement stays tidy. The side benefit is built-in budget discipline. I set about $100 as my monthly Amazon ceiling - if my cart runs over, something gets pushed to next month. It's a simple system that keeps spending intentional without any extra effort. If you're a regular S&S user who wants cleaner finances and less ""wait, who charged this and what was that charge?"" moments, this is worth making a habit.
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Fort Morgan, US
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Great for Budgeting – Instant Balance and Easy to Use
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I use Amazon’s gift card reload feature to plan my spending. It’s perfect when I know I want to make a purchase but prefer to set the funds aside first. I love that it’s immediate—no worries about pending charges or accidental spending from my card. It gives me peace of mind knowing that when I’m ready to buy, the balance is just sitting there, waiting. Pros: easy to use, instant balance update, helps with budgeting and avoiding overspending Cons: funds are locked into Amazon once reloaded, doesn’t count toward certain account requirements like review eligibility Overall, it’s a convenient and reliable way to manage spending on Amazon, especially if you like having control over your purchases.
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