4-Stroke Water Pump Service Kit for Honda BF75/BF90 AT and Early Mercury Gear Cases
4-Stroke Water Pump Service Kit for Honda BF75/BF90 AT and Early Mercury Gear Cases 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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4-Stroke Water Pump Service Kit for Honda BF75/BF90 AT and Early Me...
4-Stroke Water Pump Service Kit for Honda BF75/BF90 AT and Early Mercury Gear Cases is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket 4-stroke water pump service kit is intended for selected Honda Marine outboards and early Mercury gear-case applications. The company fitment information identifies Honda BF75AT and BF90AT models, plus an early Mercury gear case application.
Use the original component, engine model, and service-manual information to verify the application before ordering. Compatibility depends on the exact model and gear-case configuration; the fitment information does not establish compatibility with every Mercury or Mariner outboard, every horsepower range, or MerCruiser Alpha One sterndrive.
- Designed for water pump service on selected 4-stroke outboard applications.
- Suitable for the Honda BF75/90 AT application identified by the company catalog.
- Also listed for an early Mercury gear-case application.
- Aftermarket replacement service component; not an OEM-branded Honda or Mercury part.
Part Number Reference
The following manufacturer reference is listed for this product. Part-number reference alone does not replace model and configuration verification.
| Brand | Manufacturer Part Number |
|---|---|
| Honda Marine | 06193-ZW1-305 |
Compatibility
Confirm the complete model designation and gear-case configuration before installation.
| Brand or application | Model or configuration | Stroke | Fitment note |
|---|---|---|---|
| Honda Marine Outboard | BF75AT | 4-Stroke | Company-listed application |
| Honda Marine Outboard | BF90AT | 4-Stroke | Company-listed application |
| Mercury | Early Mercury gear case | Not specified | Verify the exact gear-case configuration before purchase |
Technical Specifications
- Product Type
- 4-stroke water pump service kit
- Application
- Honda BF75/90 AT and early Mercury gear-case applications as listed
- Manufacturer Reference
- 06193-ZW1-305
- Product Construction
- Kit contents and individual component materials may vary by application; verify the supplied parts against the original service assembly before installation.
- Brand Status
- Aftermarket replacement
What’s in the Box
This listing is for a water pump service kit. The company catalog does not provide a verified itemized component list or confirm whether a housing is included for every catalog variation. Compare the supplied components with the original assembly and the applicable service manual before beginning work.
Installation Notes
- Switch off the engine, remove the ignition key, disconnect the battery where applicable, and allow the engine to cool.
- Confirm the engine model, gear-case configuration, and replacement reference before disassembly.
- Remove the lower unit according to the applicable manufacturer service procedure.
- Remove the water pump cover and existing service components, keeping track of the original arrangement.
- Clean the mating surfaces and remove old gasket material without damaging the sealing surfaces.
- Install the service-kit components in the configuration specified by the service manual.
- Reassemble the water pump and lower unit, tightening fasteners to the manufacturer’s specified torque.
- Reconnect the water tube and shift mechanism as applicable, then verify correct alignment.
- Test the engine using an appropriate water supply and check for proper cooling-water discharge and leaks.
Maintenance and Troubleshooting
How do I verify that this kit fits my engine?
Check the full model designation, stroke, gear-case configuration, and the reference number 06193-ZW1-305 against your service manual or parts diagram. The listed applications are Honda BF75AT, Honda BF90AT, and an early Mercury gear case; do not assume that other horsepower ratings or later gear cases use the same kit.
What are common signs of a worn water pump service assembly?
Possible signs include weak cooling-water discharge, overheating, temperature alarms, or visible wear, cracking, deformation, or damage during inspection. Stop operation if the engine overheats and diagnose the cooling system before continued use.
When should the water pump be serviced?
Follow the maintenance schedule for your specific engine and inspect the water pump whenever cooling performance changes or the lower unit is serviced. Saltwater, sand, silty water, and extended storage can increase service needs.
Do I need special tools?
Basic hand tools and the tools specified by the applicable service manual are required. A torque wrench is recommended for reassembly. Use the manufacturer’s procedure for lower-unit removal, shift-shaft alignment, and fastener tightening.
Is this an OEM part?
No. This is an aftermarket replacement service kit. Honda and Mercury names and part numbers are used only to identify the intended application and reference numbers.
Safety and Fitment Information
- Verify the engine model, model year where applicable, gear-case configuration, and reference number before purchase.
- Do not install the kit if the supplied components differ from the original assembly or the service-manual illustration.
- Never operate an outboard without an adequate water supply.
- Professional installation is recommended when lower-unit removal or water-pump service is outside your experience.
- This product is an aftermarket replacement and is not manufactured or branded by Honda Marine or Mercury Marine.
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