Volvo Penta Impeller Kit 21951352 – Raw Water Pump Service Kit
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The Volvo Penta Impeller Kit 21951352 is a complete raw water pump service kit designed to maintain proper cooling system performance in Volvo Penta marine engines. This kit includes a precision-molded impeller along with sealing components and installation lubricant to ensure reliable water flow and long service life.
The impeller is responsible for circulating seawater through the engine cooling system. Over time, the flexible vanes can wear, harden, or crack, reducing efficiency and increasing the risk of overheating. Replacing the impeller at recommended intervals ensures consistent cooling performance and helps protect your engine from damage.
This kit is commonly used across a range of Volvo Penta diesel engines, making it an essential maintenance item for dependable operation.
Key Features
- Complete Volvo Penta impeller service kit
- High-quality flexible rubber impeller
- Includes gasket, O-ring, and installation lubricant
- Maintains proper raw water flow and cooling performance
- OEM fit and function
- Designed for marine diesel applications
Engine Compatibility
Volvo Penta Engine Series
Diesel Engines
- D4 Series
- D6 Series
Other Applications
- Select Volvo Penta IPS systems
- Compatible inboard diesel engines
➡️ Designed for engines equipped with matching raw water pump configurations.
Serial Number Fitment Notice
Fitment depends on:
- Engine model and variant
- Pump configuration
- Engine serial number
⚠️ Always confirm compatibility using your engine serial number before ordering.
Impeller Specifications
- Flexible multi-blade impeller
- Designed to OEM Volvo Penta specifications
- Hub type varies by pump configuration
What’s Included in the Kit
- Impeller
- Pump cover gasket
- O-ring / sealing components
- Installation lubricant
When This Part Needs Replacement
Replace the impeller if you notice:
- Reduced or no cooling water flow
- Engine overheating
- Cracked, missing, or stiff vanes
- After seasonal storage
Recommended service interval: every 100 hours or annually
Installation Notes
- Lubricate impeller before installation
- Install with correct vane direction
- Replace all gaskets and O-rings
- Inspect pump housing and wear surfaces
- Check system for broken vane debris
Alternate / Superseded Part Numbers
OEM Cross References
- Volvo Penta: 21951352
Aftermarket Cross References
- Johnson Pump: 09-812B-1 (verify application)
- Sierra: 18-3057 (verify fitment)
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
💡 Parts Desk Insight
Many Volvo Penta impellers in this range look nearly identical but differ slightly in size or hub design. Even small differences can affect cooling performance, so always match by part number or engine serial to ensure proper fit 👍
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.