Sierra 18-3315-2 Johnson/Evinrude Water Pump Kit
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Sierra 18-3315-2 Johnson/Evinrude Water Pump Kit Product Description
Keep Your Outboard Running Cool with Reliable Water Pump Performance
Outboard motors rely on a robust water pump to circulate coolant efficiently, preventing overheating during long days on the water. A worn or damaged pump can lead to engine damage, reduced power, and unexpected breakdowns. This Sierra water pump kit steps in as a dependable replacement, engineered to match the original equipment specifications for seamless integration and peak performance.
Crafted with high-quality, corrosion-resistant materials, it handles the harsh marine environment—from saltwater spray to freshwater lakes—ensuring longevity and consistent water flow. Boaters and mechanics alike appreciate its straightforward design, which minimizes downtime and restores your engine's cooling system to factory-fresh operation.
Perfect Fit for Your Johnson/Evinrude Models
This kit is tailored for a wide range of Johnson and Evinrude outboards, making it a go-to choice for V4, V6, and V8 powerheads. It fits models like the 90/115SL from 1995 and up, 120/125ESX from 1993-94, and 120 through 175HP along with V6/V8 configurations from 1993 onward. Cross-references OMC numbers 435929 and 5001595 for easy verification against your service manual.
- Ensures precise impeller alignment and housing fitment for vibration-free operation.
- Compatible with both conventional and some EFI setups in these engine families.
- Ideal for repowers or rebuilds where original parts are scarce or pricey.
Always double-check your engine's serial number against the compatibility list to confirm a hassle-free swap.
Easy Installation and Pro Maintenance Advice
Swapping out your water pump doesn't have to be a full-day project. With basic tools like a socket set, impeller puller, and sealant, most DIYers complete the job in under two hours. Start by flushing the cooling system, removing the lower unit, and inspecting the gearcase for wear. The kit includes all necessary gaskets, seals, and hardware for a leak-proof rebuild.
Pro tips for maximum lifespan:
- Inspect and replace the impeller annually or every 100 hours of use, especially in sandy or debris-heavy waters.
- Run the engine on a flush kit after every saltwater trip to clear salt buildup.
- Monitor tell-tale stream for steady flow; weak output signals pump issues early.
- Pair with fresh gear lube and a new driveshaft seal for comprehensive lower unit health.
These steps not only extend pump life but also safeguard your investment in a high-performance outboard.
Boost Reliability and Engine Longevity
A fresh water pump delivers optimal impeller geometry for maximum water uptake, even at high RPMs or idle. You'll notice smoother idling, quicker plane times, and cooler exhaust temps—key indicators of a healthy cooling circuit. Sierra's attention to detail, like precision-molded impellers and durable wear plates, resists cavitation and erosion common in lesser kits.
Unlike some generics, this kit prioritizes balance and flow rates matching OEM, reducing strain on the thermostat and powerhead. Anglers pushing limits in tournaments or families on weekend cruises benefit from the peace of mind that comes with proven marine-grade construction.
Frequently Asked Questions
What models does the Sierra 18-3315-2 water pump kit fit?
It fits Johnson/Evinrude 90/115SL (1995-Up), 120/125ESX (1993-94), 120/130/140/150/175/V6/V8 (1993-Up), and cross-references OMC 435929, 5001595. Verify with your engine serial number.
How often should I replace my outboard water pump?
Replace annually or every 100 hours, or sooner if you notice weak tell-tale flow, overheating, or rubber debris in the pee stream.
Is this kit a direct OEM replacement?
Yes, Sierra designs it to OEM specs with compatible impeller size, housing, and seals for plug-and-play installation.
What tools do I need for installation?
Basic tools include a socket set, impeller puller or extractor, gasket scraper, marine sealant, and torque wrench. No special factory tools required.
Can I use this in saltwater environments?
Absolutely, its corrosion-resistant components handle saltwater, but flush thoroughly after use and inspect seasonally.
What if my water pump is seized?
Apply penetrating oil, gently tap with a mallet, or use heat if needed. If damaged, replace the lower unit key or gearcase to avoid further issues.
Does it include all necessary parts?
Yes, the complete kit features impeller, liner, gaskets, seals, O-rings, and hardware for a full rebuild.
Save $12 when you buy the Sierra 18-3315-2 Johnson/Evinrude Water Pump Kit for only $64 from NVN Marine! Same day shipping before 3pm.
Sierra 18-3315-2 Johnson/Evinrude Water Pump Kit Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Sierra Engine Parts |
| Weight: |
1.68 lb |
Sierra 18-3315-2 Johnson/Evinrude Water Pump Kit User Reviews
Sierra 18-3315-2 Johnson/Evinrude Water Pump Kit Shipping & Return
| Shipping Weight: |
1.68 lb |
|---|---|
| Box Sizes: |
5.00 (h) x 5.00 (w) x 5.00 (l) |
| Cubic Feet: |
125.0 |
| Returnable: |
Yes |
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