PRODUCT DETAILS
Water Pump Impeller Housing for Mercury / Mariner Outboards
High-quality water pump impeller housing, designed to restore correct cooling system operation on compatible Mercury and Mariner 4-stroke EFI outboards.
This housing forms the base of the water pump assembly and is suitable for engines with the gearcase and drive shaft configurations listed below.
Fitment – Mercury / Mariner Outboards
Engine Type
• 4-Stroke EFI & Carb models
• 3-Cylinder and 4-Cylinder engines
• Gear ratios 2:1 and 1.83:1 (model-dependent)
Horsepower Coverage
• 30 HP EFI
• 40 HP (Carb & EFI)
• 50 HP EFI
• 60 HP EFI
Serial Number Range
Fits engines with serial numbers including (but not limited to):
• 0P401000 & up
• 1B227000 – 1B344398
• 1C000001 & up
• 0P153500 – 0P515897
• 0T409000 – 1B344306
⚠️ Serial number and gearcase configuration are critical for correct fitment.
If you are unsure, please contact us before purchase with your engine serial number.
Replaces Mercury / Mariner OEM Part Number
• 14334A3
OEM part numbers are used for reference only.
Product Notes
• Water pump housing only
• Designed for correct impeller alignment and cooling flow
• Marine-grade quality aftermarket part
• Fully compatible and interchangeable with OEM
Buyer Responsibility
It is the buyer’s responsibility to confirm compatibility using the engine model, horsepower, and serial number.
Even if a part looks similar, it may not be correct for your outboard.
If unsure, please message us — our technical team will be happy to help.
For general guidance on choosing the correct outboard parts, visit our help page:
https://sssimarine.co.uk/blogs/news/blogs-news-how-to-order-the-correct-outboard-parts
About SSI Marine
All parts are held in UK stock and dispatched from our Leigh (Manchester) workshop.
Collection available Monday–Friday, 9am–5pm.
Orders placed before 1pm are dispatched the same working day.
VAT receipts available on request.
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.
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