SKU: 39338435959

Water Pump Impeller Repair Kit – Fits MerCruiser Alpha One Gen II & Vazer Drives (Replaces 817275Q05)

Sale price$66.60 Regular price$74.00
Save 10%

Pay in installments of $18.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Water Pump Impeller Repair Kit – Fits MerCruiser Alpha One Gen II & Vazer Drives (Replaces 817275Q05)Water Pump Impeller Repair Kit Fits MerCruiser Alpha One Gen II & Vazer Drives This complete upper water pump service kit is designed for MerCruiser Alpha One Gen II sterndrive units (1991present) with serial numbers D469859 and above, as well as MerCruiser Vazer drives. It also fits a range of Mercury 2 stroke outboard engines from 225 to 250 HP. This is a direct aftermarket replacement for Mercury MerCruiser part numbers 817275Q05, 817275A4,

Water Pump Impeller Repair Kit – Fits MerCruiser Alpha One Gen II & Vazer Drives

This complete upper water pump service kit is designed for MerCruiser Alpha One Gen II sterndrive units (1991–present) with serial numbers D469859 and above, as well as MerCruiser Vazer drives. It also fits a range of Mercury 2-stroke outboard engines from 225 to 250 HP.

This is a direct aftermarket replacement for Mercury MerCruiser part numbers 817275Q05, 817275A4, 817275A5, 817275K05, 817275Q4, 817275T4, 847275A5, and 817275A1, and can also replace Sierra 18-3147 and GLM 12414.

  • Complete Service Kit: Includes all necessary components for a full upper water pump overhaul.
  • Durable Construction: Features a robust one-piece stainless steel housing for longevity and corrosion resistance.
  • Direct Fit: Engineered to meet OEM specifications for a hassle-free installation.

Part Number Cross-Reference

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

Brand Part Number
Mercury MerCruiser 817275Q05
Mercury MerCruiser 817275A1
Mercury MerCruiser 817275A4
Mercury MerCruiser 817275A5
Mercury MerCruiser 817275K05
Mercury MerCruiser 817275Q4
Mercury MerCruiser 817275T4
Mercury MerCruiser 847275A5
Sierra 18-3147
GLM 12414

Compatible Engine Models

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

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.

Brand Model Rated HP Stroke Years OEM Part No. Notes
MerCruiser Alpha One Gen II Drive N/A N/A 1991–1997 817275Q05 Serial numbers D469859–0F679999
MerCruiser Alpha One Gen II Drive N/A N/A 1997–1998 817275Q05 Serial numbers 0F680000–0K999999
MerCruiser Alpha One Gen II Drive N/A N/A 1998+ 817275Q05 Serial numbers 0L100040 & Up
MerCruiser Vazer Drive N/A N/A All Years 817275Q05
Mercury 225 (3.0L Carb) 225 2-Stroke All Years 817275Q05 Serial numbers 0D280813-0G760299
Mercury 225 (3.0L EFI) 225 2-Stroke All Years 817275Q05 Serial numbers 0G129222-0G760299
Mercury 225 Marathon (3.0L Carb) 225 2-Stroke All Years 817275Q05 Serial numbers 0G245605-0G760299
Mercury 225 SeaPro (3.0L Carb) 225 2-Stroke All Years 817275Q05 Serial numbers 0G245605-0G760299
Mercury 250 (3.0L EFI) 250 2-Stroke All Years 817275Q05 Serial numbers 0G129222-0G760299

Technical Specifications

Specification Value
Product Type Upper Water Pump Repair Kit
Installation Direct OEM replacement
Housing Material Stainless steel (one-piece body)
Other Technical Attributes Complete 11-piece kit
Warranty Manufacturer warranty against defects

Package Contents

  • 1 x Upper Water Pump Housing
  • 1 x Impeller (47-43026T-2)
  • 1 x Water Guide Fittings
  • 1 x Impeller Plate
  • 1 x Key
  • 1 x Gasket
  • 1 x O-Ring
  • Additional Gaskets, Seals, and Hardware to make a complete 11-piece kit

Installation Guide

  1. Prepare the Drive: Disconnect the battery. Safely secure the vessel and trim the sterndrive to the full up position before removing it from the transom assembly.
  2. Access the Pump: Separate the lower unit from the upper unit to expose the water pump assembly.
  3. Remove Old Components: Unbolt and remove the existing water pump housing. Carefully pull out the old impeller, wear plate, gaskets, and seals, noting their order and orientation.
  4. Clean Surfaces: Thoroughly clean the mounting surfaces, ensuring all old gasket material and sealant are removed.
  5. Install New Kit: Assemble the new components in reverse order. Install the new wear plate, gaskets, and key. Apply a light lubricant to the new impeller and inside the new housing.
  6. Seat the Impeller: Slide the impeller down the driveshaft, turning the shaft clockwise to seat the vanes correctly within the housing.
  7. Reassemble: Install the new housing and tighten the bolts to the manufacturer's specified torque. Reassemble the lower and upper units.
  8. Final Check: Reinstall the sterndrive, connect the battery, and test the engine in the water. Ensure a strong, steady stream of water is exiting the tell-tale port.

Troubleshooting & FAQ

How do I confirm this kit fits my MerCruiser Alpha One Gen II drive?
Check your drive's serial number. This kit is specifically for MerCruiser Alpha One Gen II sterndrives with serial numbers D469859 and above (manufactured from 1991 to present) and all MerCruiser Vazer drives.

What are the signs my water pump impeller needs replacement?
Common symptoms include the engine overheating, a weak or inconsistent water stream from the "tell-tale" outlet, or finding brittle, cracked, or missing vanes on your existing impeller during inspection.

How often should I replace the water pump impeller?
As a critical part of preventative maintenance, we recommend replacing the impeller every 1-2 years or every 100-200 hours of use. This interval may be shorter if you operate in saltwater or water with high sediment levels.

Is this a complete kit for the job?
Yes, this is a complete 11-piece kit that contains the upper housing, impeller, wear plate, gaskets, seals, and other hardware required for a full upper water pump service on compatible models.

OEM vs. Aftermarket?
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.

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

What is your warranty and return policy?
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: 39338435959

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Schlitty
West Palm Beach, US
★★★★★ 5
Didn't Know What I Was Missing All This Time
I saw a random video about "safe cut"(or "safety") can openers and comparing them to the traditional can openers that are more known and popular. I was skeptical because it made no sense why something that performed like that wouldn't be the known and popular style of can opener. But I was intrigued enough to try one out and was very happy to see a AmazonBasics option. AmazonBasics proves to be worth the savings more often than not compared to their counterparts. I was happy to take a roll on it. The video was no gimmick, these things are amazing. No more lining up wheels, grip crushing levers, and clunky grinding cranking. No more sharp edges or lids falling into what you want to eat. The clean cut is amazing. Put it in place and start spinning, it grabs and does the job. The lid doesn't fall in. And there's no sharp edges. It's baffling that these aren't the "known" can opener. These are what you should think of when somebody says can opener, not the ones you do. This AmazonBasics Safe Cut Can Opener is built well and I expect it to last for many, many years. MAYBE it can't tackle every can. But I've yet to run into one I can't open with it. Couple that with the ever growing prevalence of manual pull tab cans and my traditional can opener hasn't been touched since I got this a year ago. And hopefully never will. I'm a convert. Safe cut is the right cut!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2023
R
Verified Purchase
RoJo
Carnegie, US
★★★★★ 5
Amazon basic manual can opener
Easy to use, locks on the can tight, No sharp edges after the can is open. It’s compact and the handle makes turning easy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
M
Verified Purchase
Muy buen producto y buen precio
Massapequa, US
★★★★★ 5
Great item
Great item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
V
Verified Purchase
V
Chelsea, US
★★★★★ 1
doesn't open can, leaves aluminum shavings
could not cut through rim of can at all, it barely even grabbed on even after trying on multiple cans. Just spun almost in place and left small aluminum shavings and slivers from the can on the counter. the mechanism does not compress and bit into the can enough to get through, just enough to tear it up
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
K
Verified Purchase
Kyle
Fort Morgan, US
★★★★★ 5
Excellent Can Opener – Safe, Effortless, and Smartly Designed!
I’m so impressed with this electric can opener! From the moment I took it out of the box, it was incredibly easy to use—just one touch and it does all the work for you. What really sets it apart is how it opens cans with a smooth edge, so there's absolutely no worry about scratching yourself or dealing with sharp, jagged lids. That’s a huge relief, especially for someone like me who cooks often and has had accidents with traditional openers in the past. The design is compact and sleek, making it easy to store in a drawer, and it feels solid and well-made in the hand. It’s also surprisingly quiet while running. I’ve used it on all types of cans, and it works like a charm every time. Honestly, I didn’t expect to love a can opener this much, but it makes such a difference in the kitchen. If you're thinking about getting one, this is 100% worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2025

recommand products