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For Your Every Summer RSVP, with Code: SUMMER15
Description
Water Pump Kit – Fits Mercury/Mariner 6–15 HP (Replaces 46-42089A5)Water Pump Kit Fits Mercury Mariner 615 HP (Replaces 46 42089A5) This water pump repair kit is designed for Mercury Mariner 2 Stroke 615 HP (1986Up) and 4 Stroke 815 HP (19952004) outboard motors with standard gearcases (non BigFoot models). It provides a reliable solution for maintaining your engine's cooling system. This kit serves as a direct replacement for Mercury Mariner part numbers 46 42089A5, 46 42089A4, and 46 42089A3. It is also compatible
Water Pump Kit – Fits Mercury/Mariner 6–15 HP (Replaces 46-42089A5)
This water pump repair kit is designed for Mercury/Mariner 2-Stroke 6–15 HP (1986–Up) and 4-Stroke 8–15 HP (1995–2004) outboard motors with standard gearcases (non-BigFoot models). It provides a reliable solution for maintaining your engine's cooling system.
This kit serves as a direct replacement for Mercury/Mariner part numbers 46-42089A5, 46-42089A4, and 46-42089A3. It is also compatible with select 1998 Force/Sears 9.9–15 HP models.
- Engineered for direct OEM replacement and fit.
- Features a durable metal alloy housing and a neoprene rubber impeller for optimal performance.
- Includes all necessary gaskets, seals, and hardware for a complete overhaul.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Mercury/Mariner | 46-42089A5 |
| Mercury/Mariner | 46-42089A4 |
| Mercury/Mariner | 46-42089A3 |
| Force/Sears | Compatible with 9.9 & 15 HP (1998) |
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.
Confirm your engine model/year in the table below.
Mercury/Mariner 2-Stroke Models
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | Standard | 6 | 2-Stroke | 1986–Up | 46-42089A5 | Serial Number 0A197112 and Up (USA) |
| Mercury/Mariner | Standard | 6 | 2-Stroke | 1986–93 | 46-42089A5 | Serial Number 9461526 and Up (BEL) |
| Mercury/Mariner | Standard | 8 | 2-Stroke | 1986–Up | 46-42089A5 | Serial Number 0A197112 and Up (USA) |
| Mercury/Mariner | Standard | 8 | 2-Stroke | 1986–93 | 46-42089A5 | Serial Number 9461526 and Up (BEL) |
| Mercury/Mariner | Standard | 9.9 | 2-Stroke | 1986–98 | 46-42089A5 | Serial Number 0A197112 and Up (USA) |
| Mercury/Mariner | Standard | 9.9 | 2-Stroke | 1986–93 | 46-42089A5 | Serial Number 9461526 and Up (BEL) |
| Mercury/Mariner | Standard | 15 | 2-Stroke | 1988–98 | 46-42089A5 | Serial Number 0B292414 and Up (USA) |
| Mercury/Mariner | Standard | 15 | 2-Stroke | 1988–93 | 46-42089A5 | Serial Number 9542620 and Up (BEL) |
| Mercury/Mariner | XR10, Sea Pro, 10 Mag, Marathon | 10 | 2-Stroke | 1990–98 | 46-42089A5 | Serial Number 0D038000 and Up (USA) |
| Mercury/Mariner | XR10, Sea Pro, 10 Mag, Marathon | 10 | 2-Stroke | 1990–98 | 46-42089A5 | Serial Number 9596000 and Up (BEL) |
| Mercury/Mariner | 15 Sea Pro, Marathon | 15 | 2-Stroke | 1994–98 | 46-42089A5 | Serial Number 0G044365 and Up (USA) |
| Mercury/Mariner | 15 Sea Pro, Marathon | 15 | 2-Stroke | 1997–98 | 46-42089A5 | Serial Number 9927000 and Up (BEL) |
Mercury/Mariner 4-Stroke Models
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | Standard (232cc) | 8 | 4-Stroke | 1995–2004 | 46-42089A5 | Serial Number 0G760300–0T178499 |
| Mercury/Mariner | Standard (232cc) | 8 | 4-Stroke | - | 46-42089A5 | Serial Number 0H017100–0H017349 (BEL) |
| Mercury/Mariner | Standard (232cc) | 9.9 | 4-Stroke | 1995–98 | 46-42089A5 | Serial Number 0H000058–0H016909 (USA) |
| Mercury/Mariner | Standard (323cc, Non-BigFoot) | 9.9 | 4-Stroke | 1999–2004 | 46-42089A5 | Serial Number 0G760300–0T979999 (USA) |
| Mercury/Mariner | Standard (323cc, Non-BigFoot) | 9.9 | 4-Stroke | - | 46-42089A5 | Serial Number 0P075166–0P325499 (BEL) |
| Mercury/Mariner | Standard (323cc, Non-BigFoot) | 15 | 4-Stroke | 1998–2004 | 46-42089A5 | Serial Number 0G590000–1B727495 (USA) |
| Mercury/Mariner | Standard (323cc) | 15 | 4-Stroke | 1998 | 46-42089A5 | Serial Number 0G590000 and Up (USA) |
| Mercury/Mariner | Standard (323cc) | 15 | 4-Stroke | - | 46-42089A5 | Serial Number 9973100 and Up (BEL) |
Force/Sears Models
| Brand | Model | Rated HP | Stroke | Years | Notes |
|---|---|---|---|---|---|
| Force/Sears | Standard | 9.9 | 2-Stroke | 1998 | Compatible with 1998 models |
| Force/Sears | Standard | 15 | 2-Stroke | 1998 | Compatible with 1998 models |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Water Pump Impeller Repair Kit with Housing |
| Installation | Direct replacement for OEM applications |
| Housing Material | Metal alloy |
| Impeller Material | Neoprene rubber |
| Weight | 298g (10.5 oz) |
Package Contents
- 1 x Impeller (47-42038-2)
- 1 x Wear Plate (42200)
- 2 x Gasket (27-19202/27-19204-3)
- 2 x Gasket (12-19183)
- 2 x Gasket (19643)
- 1 x Pump Base (46-420T5)
- 1 x Pump Housing (46-42089A2)
- 1 x Retainer (42375)
- 2 x Oil Seal (26-41365-1)
- 2 x Seal (26-33613/26-42133)
- 1 x Screw (10-48408)
- 2 x Washer (12-16448)
- 1 x Quad Ring (25-822236)
Installation Guide
- Disconnect Power: Disconnect the battery and spark plug wires to prevent accidental starting.
- Drain Gearcase: Drain the gearcase oil to avoid spills.
- Remove Lower Unit: Unbolt and carefully lower the gearcase assembly from the outboard.
- Access the Pump: Locate and remove the bolts securing the water pump housing.
- Disassemble Old Pump: Remove the old housing, impeller, wear plate, and gaskets. Note the orientation of the old parts.
- Clean Surfaces: Thoroughly clean the mating surfaces on the gearcase and driveshaft.
- Install New Components: Install the new gaskets, wear plate, impeller (rotate shaft clockwise), and seals from the kit.
- Reassemble Housing: Apply a light coat of marine grease to the inside of the new housing and install it over the impeller. Secure with bolts.
- Reinstall Lower Unit: Guide the lower unit back into place, ensuring the driveshaft, shift shaft, and water tube align. Torque bolts to spec.
- Refill and Test: Refill the gearcase with fresh oil. Reconnect the battery and start the engine in water to verify a strong water stream from the tell-tale outlet.
Troubleshooting & FAQ
Q: How do I confirm this kit fits my specific Mercury engine?
A: The most reliable method is to match your engine's serial number to the ranges listed in the compatibility tables. The serial number is typically found on a tag on the transom bracket. Use our linked serial number guide for help locating it.
Q: What are the signs that my water pump needs to be replaced?
A: Common indicators include the engine running hotter than normal, an intermittent or weak water stream from the "tell-tale" outlet, and visible cracking or damage to the old impeller upon inspection.
Q: How often should the water pump impeller be replaced?
A: For preventative maintenance, it is highly recommended to replace your impeller every 1-2 years or every 100-200 hours of operation, depending on usage and water conditions (saltwater vs. freshwater).
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