Sierra 18-3147 Water Pump Kit with Housing Mercruiser Alpha One Gen II 817275K05
18-3147
- Dispatched in 2-3 days
- 30 Day Return Policy
- Low stock - 1 item left
- Backordered, shipping soon
Sierra 18-3147 Water Pump Repair Kit
Premium Cooling Solution for Mercruiser Alpha One Gen II
The Sierra 18-3147 Water Pump Kit is a comprehensive cooling system rebuild solution designed specifically for Mercruiser Alpha One Generation II sterndrives. This all-in-one kit includes the critical water pump housing and internal components required to maintain optimal engine temperature and prevent catastrophic overheating.
What's in the Box?
- β 18-3056 Water Pump Impeller
- β Stainless Steel Pump Housing
- β 18-3122 Impeller Plate
- β 18-2354 Carrier Seal
- β Complete Gasket & O-Ring Set
- β Impeller Key & Installation Tool
Technical Specs
| Part Number: | 18-3147 |
| Impeller Type: | Sierra 18-3056 |
| Housing Material: | Stainless Steel / Composite |
| Weight: | Approx. 0.77 kg (1.7 lbs) |
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Mercruiser | Alpha One Generation II | S/N D469859 & Above (1991+) |
| Mercury / Mariner | 65hp - 225hp Outboards | Requires verification via Serial Number |
OEM Cross Reference
| Brand | Reference Number |
|---|---|
| Mercury Marine | 817275K05, 817275Q05, 817275T4 |
| Mercruiser | 817275A5, 817275Q4, 847275A5 |
| Mallory Marine | 9-48315 |
| GLM | 12020 |
Questions & Answers
Is this a genuine original part?
This is a premium quality Sierra aftermarket replacement part, manufactured by Dometic to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
This kit is specifically for the Alpha One Gen II drive. If your sterndrive was manufactured after 1991 and has the serial number D469859 or higher, this is the correct kit.
Does this kit include the housing and the impeller?
Yes, the 18-3147 is a full kit that includes both the stainless steel pump housing and the high-performance 18-3056 impeller, along with all necessary gaskets and seals.
Note: Please verify your original part number or drive serial number against the references above before purchasing. Distributed by 4boats.co.uk.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.
