Description
Part Number: WP419N
Meziere GM LS High Flow Mechanical Race Water Pump
Engineered for extreme performance and high-RPM race applications, the Meziere WP419N high-flow mechanical water pump delivers ultimate cooling efficiency for GM LS family engines.
Key Product Features
- ☑ High-volume coolant circulation specifically designed for high-horsepower GM LS/LSX engines
- ☑ Precision 4.000″ CNC-machined billet aluminum impeller maximizes fluid dynamics
- ☑ Engineered for standard stock reverse-rotation serpentine belt drive configurations
- ☑ Integrated 4.950″ diameter pulley accommodates drive belts up to 2.000″ in width
- ☑ Rated for maximum operating speeds up to 7,000 RPM
- ☑ 100% rebuildable aircraft-grade billet aluminum housing for extreme endurance
Technical Specifications
| Brand | Meziere Enterprises |
|---|---|
| Part Number | WP419N |
| Engine Compatibility | GM LS / LSX Engines |
| Pump Type | High-Flow Mechanical Race Pump |
| Rotation | Reverse Rotation (Serpentine) |
| Impeller Size | 4.000″ Billet Impeller |
| Pulley Diameter | 4.950″ |
| Max Belt Width | 2.000″ |
| Max Operating RPM | 7,000 RPM |
| Pump Depth | 5.950″ |
| Weight | 11.60 lbs |
| Finish | Natural Billet Aluminum |
What’s Included in the Box
- 1x Meziere WP419N High Flow Mechanical Water Pump Assembly
- 1x Gasket Kit & Hardware Set
Built to handle the demanding cooling requirements of competitive motorsport and high-horsepower track setups, Meziere water pumps set the benchmark for quality and durability. Order your WP419N from JP Racing today to benefit from specialized technical support and fast UK dispatch.


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