Volvo Penta Inboard Water Pump Impeller Service Kit – Replaces Sierra 18-3205
Volvo Penta Inboard Water Pump Impeller Service Kit – Replaces Sierra 18-3205 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Volvo Penta Inboard Water Pump Impeller Service Kit – Replaces Sier...
Volvo Penta Inboard Water Pump Impeller Service Kit – Replaces Sierra 18-3205 is backordered and will ship as soon as it is back in stock.
Product Details
This Volvo Penta inboard water pump impeller service kit is designed for servicing the raw-water pump system on compatible Volvo Penta inboard applications. It is intended as a maintenance replacement for the corresponding pump service components rather than as a complete water pump assembly.
The kit is listed as a replacement for Sierra 18-3205 and corresponds to Volvo Penta reference 875574. Always compare the existing pump, component layout, and reference numbers before ordering.
- Service-kit format for compatible Volvo Penta inboard water pump applications.
- Helps restore raw-water pump service components during scheduled maintenance or repair.
- Does not include a complete water pump housing or pump assembly.
Part Number Matrix
The following references are documented in the available interchange information. They identify the service-kit cross-reference and should be checked against the pump application before installation.
| Brand | Part Number | Reference Type |
|---|---|---|
| Sierra | 18-3205 | Aftermarket replacement reference |
| Volvo Penta | 875574 | OEM reference |
Compatibility Information
This service kit is associated with Volvo Penta inboard water-pump service applications. This listing does not specify a complete engine model, year, horsepower, serial-number, stroke, or pump-housing range. Compatibility should therefore be confirmed using the engine identification information and the original pump or service-part reference.
| Application | Information |
|---|---|
| Engine brand | Volvo Penta |
| Engine type | Inboard |
| Service area | Raw-water pump / water-pump impeller service |
| Model, year, and serial conditions | Verify for your engine |
Technical Specifications
- Product Type
- Inboard engine water pump impeller service kit
- Application
- Volvo Penta inboard raw-water pump service
- Installation
- Replacement service installation in a compatible pump assembly
- Water Pump Housing
- Not included
- OEM Reference
- Volvo Penta 875574
- Aftermarket Reference
- Sierra 18-3205
What's in the Box
This listing is for a water pump impeller service kit. The product is a service kit but does not provide a verified item-by-item component or quantity list. Confirm the supplied contents against the product packaging or current kit documentation before disassembly.
- Water pump impeller service kit for the stated application
- Complete water pump housing and pump assembly are not included
Installation Notes
- Make sure the engine is switched off and cool. Disconnect the battery as appropriate for the vessel and close the seacock before opening the raw-water pump.
- Remove the pump cover and retain the fasteners in a clean location.
- Remove the worn service components carefully and inspect the pump cavity, cover, shaft, keyway, seals, and bushings for wear or damage.
- Clean all gasket and debris residue from the mating surfaces without damaging the pump housing.
- Install the replacement service components in the correct orientation for the pump design. Follow the pump manufacturer's service procedure where available.
- Reinstall the cover and fasteners evenly. Replace damaged sealing parts rather than reusing them.
- Reconnect the hoses, open the seacock, and reconnect the battery after the work area has been checked.
- Start the engine and immediately check for raw-water flow, overheating, and leaks around the pump.
Troubleshooting & FAQ
How do I confirm that this service kit fits my engine?
Compare the original pump and service-part reference with Sierra 18-3205 or Volvo Penta 875574. Because this listing does not list model-year or serial-number boundaries, confirm the application with the engine or pump documentation before ordering.
What are common signs of a failing water-pump service component?
Possible symptoms include engine overheating, reduced raw-water discharge, visible leakage around the pump, damaged impeller material, or unusual wear at the shaft and sealing areas. Inspect the complete pump system to identify the underlying cause.
Does this listing include the complete water pump?
No. This is a water pump impeller service kit. The complete pump housing and pump assembly are not included.
Is this an OEM part?
This listing is for an aftermarket service kit. Volvo Penta 875574 is shown as the OEM reference, and Sierra 18-3205 is shown as the aftermarket interchange reference.
When should the water-pump service components be replaced?
Replacement timing depends on operating conditions, service history, inspection results, and the engine manufacturer's maintenance recommendations. Replace worn, cracked, hardened, damaged, or leaking components promptly.
Safety & Important Information
- Verify the engine, pump, and reference numbers before purchase and installation.
- Do not operate the engine with the seacock closed except as required for a controlled service procedure.
- Inspect the complete raw-water pump system if an impeller has failed, because loose material may have moved downstream.
- Professional installation is recommended when pump disassembly, seal replacement, or shaft and bushing inspection is required.
- This is an aftermarket replacement service kit and is not an original Volvo Penta component.
About Sea Sierra
- Marine Service Parts — We supply replacement components for marine maintenance and repair applications.
- Application-Focused Support — Confirming the original pump and reference numbers helps ensure the correct service part is selected.
- Manufacturer-Direct Value — We work with manufacturing partners to offer practical replacement solutions for marine equipment.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
