4-Stroke Water Pump Impeller Kit with Plate – for Honda BF75/BF90 AT & AW Early Mercury Gear Cases – Replaces 06193-ZW1-305
4-Stroke Water Pump Impeller Kit with Plate – for Honda BF75/BF90 AT & AW Early Mercury Gear Cases – Replaces 06193-ZW1-305 is backordered and will ship as soon as it is back in stock.
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4-Stroke Water Pump Impeller Kit with Plate – for Honda BF75/BF90 A...
4-Stroke Water Pump Impeller Kit with Plate – for Honda BF75/BF90 AT & AW Early Mercury Gear Cases – Replaces 06193-ZW1-305 is backordered and will ship as soon as it is back in stock.
Product Details
This 4-stroke water pump impeller service kit with plate is designed for specified Honda BF75 and BF90 AT/AW outboards using an early Mercury gear case. It provides the key water-pump service components needed to renew the impeller and plate in the cooling-water pump assembly.
The kit is an aftermarket replacement associated with Honda Marine OEM reference 06193-ZW1-305. Confirm the exact engine model, gear-case configuration, and existing part number before ordering.
- For Honda BF75/BF90 AT and AW applications with an early Mercury gear case.
- Includes a water pump impeller and matching plate for the specified application.
- Supports restoration of proper cooling-water circulation when the original impeller or plate is worn.
- Application-specific replacement; not a universal fit for all Honda, Mercury, or MerCruiser engines.
Part Number Reference
Use the following manufacturer reference to compare with the part removed from your engine.
| Brand | Reference Type | Part Number |
|---|---|---|
| Honda Marine | OEM reference | 06193-ZW1-305 |
Engine & Gear-Case Compatibility
This kit is intended for the application listed below. Model, suffix, gear-case style, and serial-number conditions must all match your engine before installation.
| Brand | Model | Stroke | Gear-Case Condition | Reference |
|---|---|---|---|---|
| Honda Marine | BF75 AT / BF90 AT | 4-Stroke | Early Mercury gear case | 06193-ZW1-305 |
| Honda Marine | BF75 AW / BF90 AW | 4-Stroke | Early Mercury gear case | 06193-ZW1-305 |
Important: The fitment is limited to the specified BF75/BF90 AT or AW configuration with the applicable early Mercury gear case. Do not rely on horsepower alone to determine compatibility.
Technical Specifications
- Product Type
- 4-Stroke Water Pump Impeller Service Kit with Plate
- Application
- Honda BF75/BF90 AT and AW outboards with an early Mercury gear case
- Installation
- Replacement service part for the water pump assembly
- Included Component Type
- Water pump impeller and water pump plate
- OEM Reference
- Honda Marine 06193-ZW1-305
- Brand Status
- Aftermarket replacement; not an OEM-branded component
What’s in the Box
- 1 x Water pump impeller
- 1 x Water pump plate
Package contents are limited to the impeller and plate identified for this application. Additional gaskets, seals, keys, fasteners, or housing components are not stated as included and should not be assumed to be part of this kit.
Installation Notes
- Turn off the engine, disconnect the battery where applicable, and allow the engine to cool completely.
- Use the manufacturer’s service procedure for removing the lower unit and accessing the water pump.
- Record the original component orientation before disassembly.
- Remove the worn impeller and plate, then clean the pump-cover and mating surfaces thoroughly.
- Inspect the pump housing, drive key, shaft, gaskets, and seals. Replace any damaged parts before reassembly.
- Install the replacement plate and impeller in the correct orientation for the specified BF75/BF90 gear-case configuration.
- Lubricate the impeller with an appropriate water-based lubricant during installation; do not use petroleum grease on the impeller unless the service manual specifically permits it.
- Reassemble the water pump and lower unit, tightening fasteners to the manufacturer’s specified torque values.
- After installation, run the engine using the correct water supply procedure and verify a steady cooling-water tell-tale stream.
Maintenance & Troubleshooting
What are common signs of a failing water pump impeller?
Typical signs include a weak or missing tell-tale stream, an overheating warning, unusually high operating temperature, or visible cracking and deformation of the impeller vanes. Stop operation if the engine overheats and inspect the cooling system before further use.
Does this kit fit every Honda BF75 or BF90?
No. The listed application is limited to BF75/BF90 AT and AW models using the applicable early Mercury gear case. Verify the model designation, gear-case configuration, and existing reference number before ordering.
Does the kit include the water-pump housing?
No. This product is an impeller-and-plate service kit. A water-pump housing and other components are not stated as included.
Are gaskets, O-rings, and an impeller key included?
They are not stated as included in this product package. Inspect the existing parts and consult the engine service manual to determine whether additional service components are required.
Is this an OEM Honda part?
No. This is an aftermarket replacement kit that references Honda Marine OEM part number 06193-ZW1-305 for application comparison.
Safety & Important Information
- Verify the complete engine model and gear-case configuration before purchase.
- Do not operate the engine without an adequate cooling-water supply.
- Never run the engine if the tell-tale stream is absent or the engine shows signs of overheating.
- Use the manufacturer’s service manual for removal, installation, inspection, and torque specifications.
- Professional installation is recommended when lower-unit or water-pump service is unfamiliar.
About Sea Sierra
- Application-focused marine replacement parts for routine service and repair.
- Clear part-number and fitment information to help match the correct component.
- Aftermarket solutions for maintaining dependable marine cooling-system performance.
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