Impeller Kit – Fits Volvo Penta 3.0-8.1L GM Gas Engines (Replaces 21213664, 3842786)
Impeller Kit – Fits Volvo Penta 3.0-8.1L GM Gas Engines (Replaces 21213664, 3842786) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Impeller Kit – Fits Volvo Penta 3.0-8.1L GM Gas Engines (Replaces 2...
Product Details
This Impeller Kit – Fits Volvo Penta 3.0-8.1L GM Gas Engines (Replaces 21213664, 3842786) is a direct replacement raw water cooling pump impeller designed for a wide range of Volvo Penta engines. It is engineered for 3.0L, 4.3L, 5.0L, 5.7L, and 8.1L GM-based gas engines manufactured from 2006 and newer (including some late 2005 models) and also fits Volvo Penta D3 series diesel engines.
It serves as a direct interchange for multiple OEM and aftermarket part numbers, including Volvo Penta 21213664, 22307636, 21951354, 3842786, 21951352, Sierra 18-30778, and others.
- Engineered for both gas and diesel fuel type applications.
- Features a 7-spline insert for a secure, reliable connection to the pump shaft.
- Kit includes all necessary components for a standard replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 21213664 |
| Volvo Penta | 22307636 |
| Volvo Penta | 21951354 |
| Volvo Penta | 3842786 |
| Volvo Penta | 21951352 |
| Yanmar | 119773-42600-01 |
| Sierra | 18-30778 |
| EMP | 47-47286 |
| WFLNHB | 21213664 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta owners: This impeller fits a wide range of gas engines from 3.0L to 8.1L (2006+) and all D3 series diesel models. Please check your specific model variant.
For Yanmar owners: This part is compatible with select 6LP series engines. Confirm your OEM part number is 119773-42600-01.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | 3.0GLP-D | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 3.0GLP-E | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 3.0GLP-J | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 3.0GLP-N | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 3.0GXi-J | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 3.0GXiC-J | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3Gi-200-R | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GL-E/EF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GL-G/GF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GL-J/JF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GL-P | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXi-225-R/S | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXi-F/FF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXi-G/GF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXi-J/JF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXi-P/Q | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXiE-225-R/S | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3GXiE-M/P/Q | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3OSi-F/FF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3OSi-G/GF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 4.3OSi-J/JF | 4-Stroke | 2006 and newer | 21213664 | ||
| Volvo Penta | 5.0 Series (Multiple variants) | 4-Stroke | 2006 and newer | 21213664 | Includes GiC, GL, GXi, GXiC, GXiE, OSi, OSiE models | |
| Volvo Penta | 5.7 Series (Multiple variants) | 4-Stroke | 2006 and newer | 21213664 | Includes Gi, GiC, GiE, GiI, GXi, GXiC, GXiE, OSi, OSXi models | |
| Volvo Penta | 8.1 Series (Multiple variants) | 4-Stroke | 2006 and newer | 21213664 | Includes Gi, GiC, GiE, GiI, GXi, GXiE, GXiI, IPS, OSi, OSiE models | |
| Volvo Penta | D3-110I-A through D3-110I-H | 110 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-130A-A through D3-130A-C | 130 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-130I-A through D3-130I-C | 130 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-140A-D through D3-140A-H | 140 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-140I-D through D3-140I-H | 140 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-150I-D through D3-150I-H | 150 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-160A-A through D3-160A-C | 160 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-160I-A through D3-160I-C | 160 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-170A-D through D3-170A-H | 170 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-170I-D through D3-170I-H | 170 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-190A-B through D3-190A-C | 190 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-190I-A through D3-190I-C | 190 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-200A-D through D3-200A-H | 200 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-200I-D through D3-200I-H | 200 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-220A-D through D3-220A-H | 220 | 4-Stroke | 21213664 | ||
| Volvo Penta | D3-220I-D through D3-220I-H | 220 | 4-Stroke | 21213664 | ||
| Yanmar | 6LP(A)-DTE(P) | 4-Stroke | 119773-42600-01 | |||
| Yanmar | 6LP(A)-STE(P) | 4-Stroke | 119773-42600-01 | |||
| Yanmar | 6LP(A)-DTZE(P) | 4-Stroke | 119773-42600-01 | |||
| Yanmar | 6LP(A-DTZEP1 | 4-Stroke | 119773-42600-01 | |||
| Yanmar | 6LP(A-STZE(P) | 4-Stroke | 119773-42600-01 | |||
| Yanmar | 6LP(A-STZEP1 | 4-Stroke | 119773-42600-01 |
Technical Specs
- Product Type
- Raw Water Cooling Pump Impeller Kit
- Installation
- Direct replacement
- Fuel Type
- Gas & Diesel
- Connection
- 7-spline insert type
- Dimensions
- 57mm OD × 48.2mm length × 16mm ID
- Fitting Type
- Raw water cooling pump
- Warranty
- Varies by manufacturer
- Other Technical Attributes
- 12 blades
What’s in the Box
- 1 x Impeller (21213664)
- 2 x O-ring
Installation Notes
- Turn off the engine, allow it to cool, and close the raw water intake valve (seacock).
- Access the raw water pump and carefully remove the screws from the cover plate.
- Gently remove the old impeller. Use impeller pullers or two flat-head screwdrivers if it's stuck.
- Clean the interior of the pump housing and inspect for scoring or wear.
- Lightly lubricate the new impeller and O-rings with a marine-safe lubricant (e.g., glycerin or dish soap).
- Insert the new impeller, making sure to bend the blades in the correct direction of the pump's rotation.
- Install the new O-ring into its groove, reinstall the cover plate, and tighten the screws evenly.
- Open the seacock, start the engine, and immediately check for proper water flow and any leaks around the pump cover.
Troubleshooting & FAQ
How do I find out if this impeller will fit my engine?
This impeller is designed for most Volvo Penta gas engines from 3.0L to 8.1L (2006 and newer) and D3 series diesels. To guarantee fitment, check your engine model and year against our compatibility table and cross-reference your current part number with those in the Part Number Matrix.
What are the signs of a faulty impeller?
Key indicators of a worn or damaged impeller include the engine running hotter than normal, a noticeable reduction in water flow from the exhaust, and visible damage like cracks, tears, or missing blades upon inspection.
How often should I replace my engine's impeller?
For preventative maintenance, we recommend inspecting your impeller annually and replacing it every 1 to 2 years or every 100-200 hours of operation, whichever comes first. This interval can shorten in vessels operated in silty or sandy water.
Why is my engine overheating after I installed the new impeller?
The most common cause is incorrect installation. The impeller blades must be bent in the same direction as the pump's normal rotation. If installed backward, the blades can be damaged and will not pump water. Also, verify that the seacock is fully open and the intake lines are not clogged.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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