Sea Water Pump Impeller for Volvo Penta Gas GM Engines 2005 and Newer – Replaces 21213664
Sea Water Pump Impeller for Volvo Penta Gas GM Engines 2005 and Newer – Replaces 21213664 is backordered and will ship as soon as it is back in stock.
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Sea Water Pump Impeller for Volvo Penta Gas GM Engines 2005 and New...
Sea Water Pump Impeller for Volvo Penta Gas GM Engines 2005 and Newer – Replaces 21213664 is backordered and will ship as soon as it is back in stock.
Product Details
This sea water pump impeller is an aftermarket replacement for selected Volvo Penta gas engines using the impeller specified for OEM part number 21213664. It is identified in marine parts catalogs as a 12-fin neoprene impeller for gas GM engines from 2005 and newer.
This listing is for the impeller only. It is not a complete sea water pump assembly or an impeller service kit, so gaskets, O-rings, keys, plugs, grease, and other installation hardware are not included unless specifically stated below.
- 12-fin neoprene impeller for marine cooling-water pump service.
- Designed as a replacement for Volvo Penta OEM part number 21213664.
- Suitable for the listed Volvo Penta gas engine applications when the original impeller matches the referenced part number.
- Inspect the pump cover, housing, shaft, seal, and related hardware before installation.
Part Number Cross-Reference
Use the following references to compare your original impeller. Part-number matching is recommended before ordering.
| Brand or Source | Reference | Relationship |
|---|---|---|
| Volvo Penta | 21213664 | OEM reference |
| Sierra | 18-30778 | Aftermarket replacement reference |
| RECMar | REC21213664 | Aftermarket replacement reference |
Engine Compatibility
Catalog references associate this impeller with selected Volvo Penta gas engines manufactured from 2005 onward. The application list below is provided as a model-family guide; confirm the OEM impeller number and pump configuration on your engine before purchase.
| Brand | Listed model applications | Engine type | Year condition | Reference |
|---|---|---|---|---|
| Volvo Penta | AQ60F, AQ90, AQ95, AQ95A, AQ100, AQ110, AQ120; AQ130A/B/C/D; AQ140A; AQ145A/B; AQ151A/B/C; AQ165A; AQ170A/B/C; AQ171A/C; AQ200B/C; AQ225B/C; AQ255A; BB100; BB115A/B/C; BB140A; BB145A; BB165A; BB170A/B/C; MB18/F; MB20A/B/C | Gasoline | Varies by model; listed catalog applications include 2005 and newer gas GM engines | 21213664 |
| Volvo Penta | 3.0GLP-J; 4.3GL-J/JF, 4.3GXi-B/BF/C/CF/D/DF/E/EF/J/JF, 4.3OSi-B/BF/C/CF/D/DF/E/EF; 5.0GXi-J/JF; 5.7Gi-300-J/JF; 5.7GXi-J/JF; 8.1Gi-J/JF; 8.1GXi-J/JF | Gasoline | 2005 and newer gas GM engine applications as cataloged | 21213664 |
| Volvo Penta | 3.0GL/GS; 4.3GL/GS/GLM; 5.0FL/Fi; 5.7GL/Gi/GIP; 5.8FL/Fi/FSi; 7.4GL; 8.2GLP; AQ200B/C; AQ225B/C; AQ255A | Gasoline | Application depends on the exact pump and engine configuration | Verify before ordering |
Important: Model names alone do not confirm fitment. Match the original impeller's OEM number, dimensions, fin count, hub, and pump configuration before installation.
Technical Specifications
- Product type
- Sea water pump impeller
- Replacement type
- Aftermarket direct replacement for the referenced application
- Material
- Neoprene
- Fin count
- 12 fins
- OEM reference
- Volvo Penta 21213664
- Aftermarket references
- Sierra 18-30778; RECMar REC21213664
What's in the Box
- 1 x Sea water pump impeller
Gaskets, O-rings, keys, plugs, lubricant, and installation tools are not included with this impeller-only listing.
Installation Notes
- Stop the engine, allow it to cool, and close the cooling-water seacock before servicing the pump.
- Remove the pump cover and retain the screws and any reusable hardware.
- Note the direction of the existing impeller fins before removal.
- Remove the old impeller with suitable pliers or an impeller puller, taking care not to damage the housing or shaft.
- Clean debris and old gasket material from the pump housing and cover.
- Inspect the pump housing, cover plate, shaft, seal, key, gasket, and O-ring. Replace damaged or worn parts as required; these components are not included with this listing.
- Lubricate the new impeller with clean cooling-system water or a lubricant approved for impeller installation. Do not run the pump dry.
- Install the impeller with the fins oriented as required by the pump design, then refit the cover with a suitable new gasket or O-ring if required.
- Open the seacock, start the engine, and check immediately for leaks and proper cooling-water flow.
Troubleshooting & FAQ
How do I confirm that this impeller fits my engine?
Compare your original impeller and pump application with OEM reference 21213664. Confirm the engine model, pump configuration, fin count, hub, and dimensions before ordering. The compatibility table is a guide and does not replace part-number verification.
Is this a complete impeller kit?
No. This product is one replacement impeller only. Gaskets, O-rings, keys, plugs, and other service parts are not included.
What are common signs of impeller wear?
Common signs include higher-than-normal engine temperature, reduced cooling-water discharge, damaged or missing fins, cracking, hardening, or deformation of the old impeller.
How often should a water-pump impeller be inspected?
Inspect the impeller according to the engine manufacturer's maintenance schedule and whenever cooling performance changes. Replacement intervals depend on operating hours, storage conditions, water quality, and whether the pump has been operated dry.
What can cause premature impeller failure?
Common causes include dry running, abrasive debris, extended storage, chemical or oil contamination, overheating, a damaged pump housing, or a worn shaft and seal.
Can I install this impeller myself?
Impeller replacement is a common maintenance procedure, but the work should be performed only by someone familiar with marine cooling systems. Follow the engine and pump manufacturer's service instructions and use appropriate safety precautions.
Is this an OEM part?
No. This is an aftermarket replacement impeller referenced to Volvo Penta OEM part number 21213664.
Safety & Important Information
- Close the cooling-water seacock and disable the engine before servicing the pump.
- Never operate the pump dry, even briefly.
- Verify the original part number and pump configuration before purchase.
- Replace damaged gaskets, O-rings, keys, covers, housings, or seals as necessary; they are not included with this impeller.
- If fitment or installation is uncertain, consult the engine manufacturer’s service information or a qualified marine technician.
After Installation
Run the engine with the seacock open and inspect the pump area for leaks. Confirm normal engine temperature and steady cooling-water discharge. Stop the engine immediately if cooling flow is abnormal or the pump leaks.
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