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Description
Water Pump Service Kit – Fits Mercury/Mariner 75-220 HP Outboards & MerCruiser I/R/MR/Alpha (Replaces 96148A8)Water Pump Service Kit Fits Mercury Mariner 75 220 HP Outboards & MerCruiser I R MR Alpha (Replaces 96148A8) This water pump service kit is designed for Mercury Mariner 65 220 HP 2 Stroke outboards with short vane impellers. It also fits MerCruiser I, R, MR, and Alpha sterndrives within the serial number range of 2491586 to 0D469858. This is a direct aftermarket replacement for Mercury part numbers 46 96148A8 and 96148A8, and Sierra part number 18
Water Pump Service Kit – Fits Mercury/Mariner 75-220 HP Outboards & MerCruiser I/R/MR/Alpha (Replaces 96148A8)
This water pump service kit is designed for Mercury/Mariner 65-220 HP 2-Stroke outboards with short-vane impellers. It also fits MerCruiser I, R, MR, and Alpha sterndrives within the serial number range of 2491586 to 0D469858.
This is a direct aftermarket replacement for Mercury part numbers 46-96148A8 and 96148A8, and Sierra part number 18-3320.
- Includes all necessary components for a complete upper water pump housing repair.
- Engineered as a direct OEM-equivalent replacement for straightforward installation.
- Features a durable plastic housing designed to meet or exceed original specifications.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Mercury | 46-96148A8 |
| Quicksilver | 96148A8 |
| Sierra | 18-3320 |
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 | Notes |
|---|---|---|---|---|
| Mercury/Mariner | 4-cylinder | 65-75 | 2-Stroke | |
| Mercury/Mariner | V6 | 75-220 | 2-Stroke | Models with short-vane impellers |
MerCruiser Sterndrives
| Brand | Model | Notes |
|---|---|---|
| MerCruiser | I Drive | Serial No. 2491586-0D469858 |
| MerCruiser | R Drive | Serial No. 2491586-0D469858 |
| MerCruiser | MR Drive | Serial No. 2491586-0D469858 |
| MerCruiser | Alpha Drive | Serial No. 2491586-0D469858 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Water Pump Service Kit |
| Installation | Direct OEM replacement |
| Housing Material | Plastic |
| Housing Color | Black |
| Weight | 0.60 lb (0.27 kg) |
| Other Technical Attributes | Complete water pump repair kit for upper housing assembly |
Package Contents
- 1 x Plastic Pump Housing Assembly
- 1 x Water Impeller
- 1 x Face Plate
- 1 x Gasket Set
- 1 x Drive Key/Pin
- 1 x Water Tube Guide Sleeve
- 1 x "O" Ring Set
- 1 x Gearlube Fill & Vent Screw Seals
- 1 x Face Seal
- 1 x Seal Carrier
- 1 x Water Tube Coupling
Installation Guide
Professional installation is recommended. The general steps are outlined below:
- Disconnect the Battery: Ensure the engine is off and disconnect the battery terminals for safety.
- Remove Lower Unit: Unbolt and remove the sterndrive or outboard lower unit (gearcase) from the engine.
- Access the Pump: Locate and remove the bolts securing the water pump housing. Slide the old housing assembly off the driveshaft.
- Inspect & Clean: Remove the old impeller, key, gaskets, and wear plate. Clean all mating surfaces thoroughly, removing any old gasket material or corrosion.
- Install New Components: Place the new gaskets and wear plate. Install the new impeller drive key onto the shaft and slide the new impeller on, turning the shaft clockwise to bed the vanes correctly.
- Seat New Housing: Apply a light coat of marine grease to the inside of the new housing and install it over the impeller. Reinstall the housing bolts and tighten them to the manufacturer's specified torque.
- Reassemble & Test: Reinstall the lower unit, ensuring the water tube aligns correctly with the pump outlet. Reconnect the battery, supply water to the engine using flushing muffs, and run it briefly to confirm proper water flow from the tell-tale outlet.
Troubleshooting & FAQ
- Q: How do I confirm this kit fits my specific engine?
- A: This kit fits MerCruiser I, R, MR, and Alpha sterndrives with serial numbers from 2491586 to 0D469858. It also fits Mercury/Mariner 65-220 HP 2-stroke outboards that use a short-vane impeller. Always verify using your engine's serial number and check against the part numbers listed.
- Q: What are the signs of a failing water pump?
- A: Common symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the "tell-tale" outlet, and in some cases, a steam-filled exhaust. A damaged impeller is the most common cause of failure.
- Q: How often should I replace the water pump impeller or service the kit?
- A: As a general rule, the impeller should be inspected annually and replaced every 1-2 years or every 100-200 hours of use, whichever comes first. This interval can be shorter if you operate in sandy, silty, or saltwater environments. Replacing the full kit is recommended for complete preventative maintenance.
- 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:
- 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
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 3
Fit My Dr Pen M7 Correctly, But Check Packaging Carefully Before Use
I purchased these replacement cartridges for my Dr Pen M7, and the fit was fine with no compatibility issues. They attached properly and worked as expected during use, so at least from a fit/function standpoint, they seem pretty standard.
I also appreciate that the pack includes a variety of cartridge types and needle/pin counts instead of only one style. Having different options is useful depending on the area being treated and personal preference.
One thing I did notice though is that the cartridges arrived in Dr Pen branded packaging, and I honestly wasn’t completely sure about the legitimacy/authenticity of them. They may very well be genuine, but it did make me pause a little since there wasn’t much additional verification information included.
My biggest concern was that although the packages are labeled sterile, I noticed some type of brown residue/spotting inside one of the sealed cartridge packages. It appeared in multiple spots inside that particular package, so I immediately decided to throw that cartridge away rather than risk using it.
Because of that, I would strongly recommend inspecting each cartridge carefully before use and sterilizing again yourself for extra precaution. With microneedling products especially, cleanliness and safety matter a lot.
Overall, the cartridges themselves fit and functioned properly with my device, and I like the variety included, but quality control/sterility is something I’d advise paying close attention to before using them.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great replacement micro needling cartridges.
Picked today up for replacements for my Dr Pen micro needler.
They arrived individually sealed, ready for use. They appear to be compatible good quality product just like my originals. Love the price point and savings.
They fit my device perfectly.
These arrived at the Dr Pen cartridge box although do not have Dr Pen brand on cartridges appear high-quality similar in packaging of the originals. They do not have the pen, cap safety guard, but that's really not a needed part of the product.
Make sure to verify you have the right device.
Be aware they do not fit correctly in M8 devices.
Great value for the money you get 21 piece micro, needling cartridges, various needle styles. The kit comes with 36 needle, 12 needle and nano cartridges.
I have already used the Nano cartridge and they are super comparable to original cartridges quality, They do not drag on the skin easily move and dispense face serum product.
So far, I've been super happy with the replacements.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
21 Piece Pen Cartridges
This 21 piece microneedling cartridge set is an excellent value and gives a lot of versatility for different skincare needs. I really like that it includes three different tip styles: nano, 12 pin, and 36 pin. There are 7 of each variety included, which makes it easy to customize treatments depending on what area I’m focusing on and how gentle or intensive I want the session to be.
The cartridges fit my Dr Pen device well and feel securely attached during use. Everything came individually packaged and clean, which is important for at home microneedling routines. The nano tips are great for product infusion and glow-focused treatments, while the 12 and 36 pin options work well for more targeted skin texture care. Overall, this is a convenient and affordable replacement set that’s perfect for anyone wanting multiple cartridge options in one package.
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Reviewed in the United States on May 22, 2026
★★★★★ 4
Wish I Knew if it is Surgical Grade Steel
I have a Dr. Pen A6, and these non-OEM cartridges are a great value. You receive twenty-one cartridges in various sizes, and each cartridge is individually wrapped.
These pins come in three sizes: thirty-six pin, twelve pin, and nano. I had no issue inserting the cartridge and locking it into place, and I didn't notice any wiggling or looseness. The pins were sharp and did not tear or drag on my skin. Of course, you will see small pinpricks where you have treated.
One thing I would like to know is whether these are made with surgical grade steel. I would prefer that they are, but I don't see that information anywhere in the listing. That said, I didn't notice any unusual irritation.
I now have a good variety of cartridges to be more consistent with my pen usage. I will update this review if I notice anything related to the steel used.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Perfect for Husbands but Wives may Enjoy Reading it Too!
For a long time I've wondered what my love language is in particular because they all sound good to me. I love receiving stuffed animals from my husband so maybe it is gifts. But then I also adore undivided attention when we watch movies nearly every night, so maybe it is quality time. When my husband empties the dishwasher that is good so maybe it is acts of service. Well how about a compliment, that is nice too. I think I'm greedy, I want it all. lol So don't think your wife will only like just one love language. Maybe she wants touch, quality time and acts of service too.
This book explains what the typical differences are in what men and women want in regards to love languages. It also wisely explains how to apologize to a woman in a sincere way that will make her melt. It deals with anger and women want less of that!
At the end of the book there are two tests, one for him, one for her. You can then figure out what each other's love languages are. As the books says, sometimes you are bilingual. Also there are various dialects.
This book also makes you realize why sometimes the love language works and at other times it does not get the points you think you are getting. Like when a woman is really busy, some things mean more than others. While she's in the kitchen she might want help with the kids instead of touch or when she is feeling down she might want a compliment to make her feel appreciated.
So I think learn all the love languages and use them wisely. I'm a fan! Any man who adds these languages to his skill set is going to be way more desired than usual. Women pay attention and this is a way of getting your point across. Oh and at the end of the chapters there is an easy "phrase book" so you get tips on specific things you can do to speak each language.
I'm giving this book to my husband and I really hope he reads it! I'm also happy I read it because I've got myself more figured out. To my husband I say more love languages please!!!!
~The Rebecca Review
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Reviewed in the United States on August 18, 2024