Description
Jabsco 8-Blade Impeller Kit - Nitrile Drive | Boat Supply Store
This Jabsco 8-blade impeller kit is engineered to restore optimal performance to your raw water cooling system, preventing engine overheating during demanding use. Constructed from durable nitrile material, it ensures robust operation in various marine environments. The 2-9/16" diameter and spline drive interface guarantee precise engagement with compatible pump shafts, critical for maintaining consistent coolant flow, especially when navigating the shallow waters of the Gulf Coast.
Key Features
- Guarantees optimal raw water pump function with an 8-blade design.
- Ensures longevity and resistance to petroleum products with nitrile construction.
- Provides a secure fitment via the spline drive connection.
- Restores efficient engine cooling capabilities.
- Prevents premature wear and tear on vital cooling components.
- Minimizes downtime with a direct replacement solution.
- Designed for high-performance marine applications.
- Maintains consistent fluid transfer for engine protection.
Specifications
| Product Specifications | |
|---|---|
| Blade Count | 8 |
| Material | Nitrile |
| Diameter | 2-9/16" |
| Drive Type | Spline Drive |
| Brand | Jabsco |
| MPN | 920-0003-P |
Who This Is For
Boat owners requiring a direct replacement for a worn or damaged Jabsco 8-blade nitrile impeller with a spline drive. This kit is essential for maintaining the health and operational efficiency of marine raw water cooling systems.
How It Compares
| Feature | Jabsco 8-Blade Impeller Kit - Nitrile Drive | Johnson Pump |
|---|---|---|
| Blade Count | 8 | 6 |
| Material | Nitrile | Neoprene |
| Diameter | 2-9/16" | 2-1/2" |
| Drive Type | Spline Drive | Keyway Drive |
Common Concerns Answered
Will this impeller fit my existing raw water pump?
This Jabsco impeller kit features a 2-9/16" diameter and a spline drive connection, ensuring compatibility with Jabsco pumps designed for this specific configuration. Always verify your pump's shaft type and impeller dimensions.
How often should I replace my marine impeller?
Impellers are wear items and typically require replacement annually or after 100-200 operating hours, whichever comes first, to prevent catastrophic engine damage due to cooling loss. Regular inspection for nicks, tears, or stiffness is recommended.
What is the advantage of a nitrile impeller over neoprene?
Nitrile impellers offer superior resistance to oil and fuel contamination compared to neoprene, making them ideal for marine applications where exposure to petroleum products is common. They also tend to have a longer service life in demanding conditions.
Frequently Asked Questions
What does 'spline drive' refer to on this impeller?
Spline drive indicates that the impeller has a shaft bore with multiple longitudinal grooves (splines) designed to engage with a corresponding splined shaft on the water pump, providing a positive and secure rotational connection.
Can I use this 8-blade impeller if my old one had fewer blades?
While an 8-blade impeller generally provides increased flow, it is critical that the impeller's diameter, thickness, and drive type match the specifications of your pump's housing and shaft. Using an impeller with incorrect dimensions can lead to poor performance or damage.
What is the specific advantage of an 8-blade design?
An 8-blade configuration typically offers a higher fluid displacement volume per rotation compared to impellers with fewer blades, potentially leading to more efficient cooling, especially at lower engine RPMs.
What is the difference between a 2-9/16" diameter and other sizes?
The diameter is a critical dimension that must match the internal diameter of your raw water pump housing. A mismatch can result in inadequate sealing, reduced flow, or premature wear of the impeller and pump housing.
How do I confirm this impeller is the correct replacement for my boat's cooling system?
Cross-reference the Jabsco MPN (920-0003-P) and the SKU (CWR50256) with your boat's service manual or the specifications of your existing raw water pump. Verifying the blade count, diameter, and drive type is essential.
