Sierra 18-3256 Water Pump Kit W/O Housing
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Sierra 18-3256 Water Pump Kit W/O Housing Product Description
Upgrade Your Outboard's Cooling System with Reliable Performance
Keeping your boat's engine cool under pressure is non-negotiable, especially during long days on the water. This water pump kit delivers the essential components needed to restore optimal coolant flow without the bulk of a full housing. Designed for seamless integration into existing setups, it tackles common issues like overheating and impeller wear that can sideline your adventures.
Boat owners swear by these kits for their straightforward rebuild process, saving time and effort compared to sourcing individual parts. Whether you're prepping for summer cruises or routine maintenance, it ensures consistent water circulation to prevent costly engine damage.
Engineered for Durability and Precision Fit
- High-Quality Impeller: Flexible rubber construction resists cracking and deformation, even in high-heat conditions.
- Wear Plate Included: Protects against erosion for longer service life and smoother operation.
- O-Rings and Gaskets: Precision-molded seals that maintain a watertight fit, reducing leaks.
- Key and Hardware: All necessary fasteners for a secure, vibration-resistant assembly.
- Corrosion-Resistant Materials: Built to withstand saltwater exposure and freshwater demands alike.
Unlike makeshift repairs, this kit uses materials tested for marine environments, promoting efficient heat dissipation and reliable startups every time.
DIY Installation: Simple Steps for Quick Results
Revitalizing your water pump doesn't require a marine yard. With basic tools like a socket set, screwdriver, and sealant, you can complete the job in under an hour.
- Drain the cooling system and remove the lower unit if needed.
- Disassemble the existing pump, discarding the old impeller and wear plate.
- Inspect the housing for damage—clean thoroughly before installing new components.
- Lubricate the impeller with marine grease, align the key, and reassemble with provided hardware.
- Torque to spec, reinstall, and test flush the system on muffs before hitting the water.
Pro tip: Always prime the new impeller by soaking it in hot water beforehand to ensure it expands properly on first run.
Maximize Longevity: Essential Care After Install
A fresh water pump kit shines brightest with proactive upkeep. Monitor engine temps closely post-install, and inspect annually or every 100 hours of use. Flushing after saltwater trips prevents salt buildup, while checking for play in the pump shaft catches issues early.
Common pitfalls? Running dry or ignoring tell-tale stream flow—these accelerate wear. Pair this kit with a flush kit for year-round reliability, extending your outboard's life and your time on the water.
Perfect Match for Popular Outboard Models
Engineered as a direct replacement for select two-stroke and four-stroke outboards, this kit fits a range of horsepower ratings common in recreational boating. It's a go-to for mechanics servicing mid-range powerheads where housing reuse is standard practice.
Cross-check your engine's serial number against the manufacturer's reference guide to confirm fitment—peace of mind starts with the right match.
Frequently Asked Questions
What does this water pump kit include?
It comes complete with impeller, wear plate, O-rings, gaskets, key, and necessary hardware for a full rebuild.
Do I need to replace the pump housing too?
No, this kit is designed for use with your existing housing, provided it's in good condition without cracks or excessive wear.
How often should I replace the water pump impeller?
Inspect annually or every 100 hours; replace if rubber is cracked, glazed, or chunks are missing to avoid overheating.
Can I install this kit myself?
Yes, it's beginner-friendly with basic tools. Follow a step-by-step guide and torque specs for best results.
Will this kit work in saltwater environments?
Absolutely—materials are corrosion-resistant, but flush thoroughly after use to prolong life.
What are signs my water pump needs rebuilding?
Look for weak tell-tale stream, steam from the cowling, high engine temps, or unusual noise from the lower unit.
Does it fit four-stroke engines?
Confirm via your engine's service manual, as it's compatible with many popular four-stroke models in the mid-HP range.
Save $8 when you buy the Sierra 18-3256 Water Pump Kit W/O Housing for only $22 from NVN Marine! Same day shipping before 3pm.
Sierra 18-3256 Water Pump Kit W/O Housing Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Sierra Engine Parts |
| Weight: |
0.1 lb |
| Fits: |
DF 9.9/15 (1997-04) DT 9.9 (1985-87) DT 15 (1993-88), DT15C (1989-97) |
| Replaces: |
17400-93951 |
Sierra 18-3256 Water Pump Kit W/O Housing User Reviews
Sierra 18-3256 Water Pump Kit W/O Housing Shipping & Return
| Shipping Weight: |
0.1 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 4.00 (w) x 7.00 (l) |
| Cubic Feet: |
28.0 |
| Returnable: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.