Sierra 18-3212-1 Water Pump Kit
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Sierra 18-3212-1 Water Pump Kit Product Description
Keep your boat's engine running cool and reliable with the Sierra 18-3212-1 Water Pump Kit. Designed as a direct replacement for common marine outboard and stern drive applications, this kit ensures optimal coolant flow to prevent overheating during long days on the water. Boaters trust Sierra for its precision engineering that matches or exceeds original equipment standards, delivering peace of mind without the premium price tag.
Key Features and Benefits
- Complete Kit Contents: Includes impeller, housing, wear plate, gaskets, and hardware for a full rebuild—everything you need in one package to minimize downtime.
- High-Quality Materials: Nitrile rubber impeller resists heat and wear, while durable bronze or stainless components handle corrosive saltwater environments effortlessly.
- Precision Fit: Engineered to OEM specifications for seamless installation, restoring factory-level performance and efficiency.
- Enhanced Durability: Superior impeller vanes provide consistent water pressure, reducing the risk of cavitation and extending service life.
- Cost-Effective Reliability: Save on maintenance costs compared to dealer parts while enjoying the same level of protection for your investment.
Whether you're prepping for fishing trips, weekend cruises, or competitive racing, this water pump kit keeps temperatures in check, protecting your engine from costly damage.
Application Fit and Installation Insights
Cross-reference Sierra's detailed catalog to confirm compatibility with your specific engine model. This kit suits a range of popular outboards and inboards from leading brands, making it a go-to for mechanics and DIY enthusiasts alike.
Pro Installation Tips
- Drain the cooling system and remove the lower unit or pump assembly carefully to avoid damaging gears.
- Inspect the old impeller for signs of glazing or chunks—replace the kit fully if debris is present.
- Lubricate the new impeller with marine grease before installation; twist it into place without forcing.
- Torque bolts to manufacturer specs and test-run the engine on muffs before hitting the water.
- Prime the system by running freshwater through it to bleed air pockets.
Most installs take under an hour with basic tools. Always wear gloves—the impeller edges can be sharp. A common pitfall? Skipping the wear plate inspection, which leads to premature failure. Address it proactively for longevity.
Maintenance Best Practices
Inspect your water pump annually or every 100 hours of operation, whichever comes first. In saltwater use, flush after every outing to combat corrosion. Watch for symptoms like steam from the exhaust, rising temps on gauges, or reduced pee stream from the tell-tale—early indicators of impeller distress.
Pair this kit with a fresh zinc anode and thermostat for comprehensive cooling system health. Regular upkeep not only extends engine life but boosts fuel efficiency and performance.
Why Choose Sierra Engine Parts?
Sierra stands out in the marine aftermarket with decades of expertise, producing millions of parts trusted by professionals worldwide. Their rigorous testing ensures vibration resistance, pressure handling, and flow rates that rival factory units. Boaters rave about the easy availability and consistent quality—no more hunting for obscure OEM pieces.
Frequently Asked Questions
What does the Sierra 18-3212-1 Water Pump Kit include?
The kit comes complete with a new impeller, pump housing, wear plate, O-rings, gaskets, and necessary hardware for a straightforward replacement.
How do I know if this kit fits my engine?
Consult Sierra's catalog by part number and engine model for exact matches. It's designed for various outboard and stern drive setups.
What are the signs my water pump needs replacing?
Look for overheating, weak tell-tale flow, unusual engine noise, or visible impeller chunks in the strainer. Proactive replacement prevents breakdowns.
Can I install the Sierra 18-3212-1 kit myself?
Yes, it's DIY-friendly with standard tools. Follow a step-by-step guide: remove old unit, clean surfaces, lube and install new parts, then test.
How often should I replace the water pump impeller?
Every season or 100 hours in freshwater; more frequently (every 50-75 hours) in saltwater to combat accelerated wear.
Is the Sierra impeller as good as OEM?
Sierra impellers use premium neoprene or urethane materials tested to OEM specs, offering comparable flow and durability at a fraction of the cost.
Does this kit work in saltwater environments?
Absolutely—corrosion-resistant components make it ideal for brackish and saltwater use, but always flush after exposure.
Save $25 when you buy the Sierra 18-3212-1 Water Pump Kit for only $44 from NVN Marine! Same day shipping before 3pm.
Sierra 18-3212-1 Water Pump Kit Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Sierra Engine Parts |
| Weight: |
0.46 lb |
| Description: |
Water Pump Kit: OMC Cobra Sterndrives Replaces OEM # OMC# 984461 |
Sierra 18-3212-1 Water Pump Kit User Reviews
Sierra 18-3212-1 Water Pump Kit Shipping & Return
| Shipping Weight: |
0.46 lb |
|---|---|
| Box Sizes: |
3.00 (h) x 6.00 (w) x 11.00 (l) |
| Cubic Feet: |
198.0 |
| Returnable: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.