Water Pump Housing for Mercury, Mariner & Force 30–60 HP Outboards – OEM 14334A3
Water Pump Housing for Mercury, Mariner & Force 30–60 HP Outboards – OEM 14334A3 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Housing for Mercury, Mariner & Force 30–60 HP Outboa...
Water Pump Housing for Mercury, Mariner & Force 30–60 HP Outboards – OEM 14334A3 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Water Pump Housing is a replacement upper housing for selected Mercury, Mariner and Force outboard water-pump assemblies. It supports applications using OEM reference 14334A3 and is designed to retain the water-pump impeller in the cooling system.
This listing is for the housing only. It is not a complete water-pump kit and does not include an impeller, base, plate, gaskets, washers, key or other service components.
- Replacement upper water-pump housing for selected 2-stroke and 4-stroke applications.
- Customer-facing OEM reference: Mercury/Mariner/Force 14334A3.
- Aftermarket component supplied as one housing.
- Verify the engine model, horsepower, stroke, serial number and original housing before ordering.
Reference Information
Catalog references identify 14334A3 as a water-pump upper housing or upper housing service component for selected Mercury, Mariner and Force applications. Other numbers associated with water-pump kits or individual components are not automatically interchangeable with this housing.
| Brand | Reference | Part description | Important note |
|---|---|---|---|
| Mercury / Mariner / Force | 14334A3 | Water pump upper housing | Primary manufacturer reference for this housing. |
| Mercury / Mariner / Force | 812966A12 | Water-pump service or impeller-kit reference | Do not use this kit reference alone to identify the housing-only product. |
| Sierra | 18-3578 | Circulating water pump reference | Not confirmed as an equivalent to this outboard water-pump housing. |
Engine & Model Compatibility
Available catalog evidence places housing reference 14334A3 in selected Mercury, Mariner and Force outboard water-pump applications in the approximately 30–60 HP range, including both 2-stroke and 4-stroke families. Some catalog listings also group related applications by model series, rather than by a single universal year range.
Compatibility can vary by stroke, model variant, gearcase, production year and serial-number range. The horsepower range below is a guide only and is not a substitute for checking the exact engine identification label and the original housing.
| Brand family | Model range shown in catalog references | Rated horsepower | Stroke | Fitment condition |
|---|---|---|---|---|
| Mercury / Mariner / Force | Selected standard and Formula outboard applications | 30–60 HP | 2-stroke and 4-stroke | Confirm model and serial number before purchase. |
| Mercury / Mariner / Force | Selected 4-stroke water-pump applications | 25–60 HP | 4-stroke | Use the original housing and engine identification to verify the match. |
| Mercury / Mariner / Force | Selected 2-stroke water-pump applications | 30–70 HP | 2-stroke | Not every engine in this horsepower range uses the same housing. |
Important: Bigfoot, Jet, EFI, carbureted and other model variants may use different water-pump components even when the horsepower rating is similar. Do not rely on horsepower alone.
Technical Specs
- Product Type
- Water pump upper housing
- Application
- Selected Mercury, Mariner and Force outboard water-pump assemblies
- Reference Part Number
- 14334A3
- Stroke Coverage
- Selected 2-stroke and 4-stroke applications; verify exact fitment
- Typical Horsepower Range
- Approximately 30–60 HP, depending on model and serial-number conditions
- Product Configuration
- Single housing; not a complete pump kit
- Material / Color
- Aftermarket housing; verify appearance and dimensions against the original part
What’s in the Box
Each order contains:
- 1 × Water Pump Housing
Not included: impeller, impeller key, pump base, plate, coupler or guide tube, washers, gaskets, O-ring, bolts or complete water-pump service kit.
Installation Notes
- Confirm the engine model, year, stroke, horsepower and serial number before beginning work.
- Disconnect the battery and place the outboard in neutral. Follow the engine manufacturer’s service procedure.
- Remove the lower unit and water-pump cover or housing, keeping all components in their original order.
- Inspect the impeller, key, plate, base, gaskets and related components. Replace worn parts as required; they are not included with this housing.
- Clean the mating surfaces and check that the replacement housing matches the original in shape, height and fit.
- Install the housing with the correct gaskets and lubricant for the engine application. Do not reuse damaged sealing components.
- Reassemble the water pump and lower unit according to the manufacturer’s torque and alignment specifications.
- After assembly, run the engine only with an appropriate water supply and confirm a steady tell-tale stream and normal operating temperature.
Troubleshooting & FAQ
Is this a complete water-pump kit?
No. This listing is for one water-pump housing only. The impeller, base, plate, gaskets, key and other service parts must be purchased separately if required.
What OEM reference does this housing replace?
The primary catalog reference for this housing is Mercury/Mariner/Force 14334A3. Confirm the number and physical configuration against your original part before ordering.
Does reference 812966A12 identify this housing?
812966A12 appears in catalog material as a water-pump service or impeller-kit reference. It should not be treated by itself as confirmation that a housing-only replacement fits your engine.
Will this fit every Mercury or Mariner 40–60 HP engine?
No. Fitment depends on the exact model family, stroke, production year, serial number and water-pump design. Compare the original housing and verify the engine’s complete identification before purchase.
Can I replace only the housing?
Yes, if the impeller, plate, base, seals and other water-pump components remain serviceable and the replacement housing is the correct match. Inspect the complete assembly during service.
Is this an OEM component?
No. This is an aftermarket replacement component intended for applications using the referenced housing specification.
Safety & Important Information
- Verify the complete engine model and serial-number range before ordering.
- Compare the replacement housing with the original part, including its shape, height, sealing surfaces and impeller fit.
- Do not operate an outboard without an adequate cooling-water supply.
- Professional installation is recommended when lower-unit removal or water-pump service is unfamiliar.
About Sea Sierra
- We supply aftermarket marine replacement parts for maintenance and repair applications.
- Parts are selected by application and reference number to help support accurate ordering.
- For the best fitment result, provide the engine brand, model, horsepower, stroke and serial number when requesting assistance.
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