Jabsco 6-7779003 Pulley-Driven Engine Cooling Pump Nitrile Impeller

Jabsco 6-7779003 Pulley-Driven Engine Cooling Pump

Heavy-duty pulley-driven flexible impeller pump for engine raw water cooling applications. Features a bronze body and stainless steel shaft engineered for the marine environment, with a nitrile impeller suited for raw water circuits that may be exposed to petroleum contamination.

• Drive type: Pulley-driven
• Impeller material: Nitrile
• Self-priming: Up to 10 ft
• Body: Bronze
• Shaft: Stainless steel
• Rotation: Bidirectional
• Port orientations: Multiple available to suit installation requirements
• Cam and wearplate: Replaceable for extended service life
• Part number: 6-7779003 (Jabsco catalog: 7779-003)
• Weight: 2,812g
• Applications: Engine cooling, wash-down, circulation, general-purpose onboard or dockside use

Service Parts & Related Products

• Jabsco 6-8360003P Nitrile Impeller 836 Series replacement impeller (nitrile)
• Jabsco 6-8360001P Neoprene Impeller 836 Series replacement impeller (neoprene)
• Jabsco Neoprene Impeller Kit JAB-836-0001-P 836 series full service kit
• Jabsco 900920004 Service Kit with Nitrile Impeller Nitrile full service kit
• Jabsco 6-Hole Pump End Cover Plate JAB-11831-0000 Pump end cover for Jabsco flexible impeller pumps

Parts Desk Insight Best Use

The 6-7779003 is a complete pulley-driven pump unit not a service kit or bare impeller. At $992 and 2,812g this is a full pump assembly intended for OEM-style installation or direct replacement of a failed unit. The pulley-drive configuration is common on older inboard engine installations where the pump is belt-driven off the engine rather than flange-mounted. Key service advantages: the replaceable cam and wearplate design means the pump housing can be rebuilt rather than replaced when internal wear occurs stock the 836 series impeller and service kit alongside this unit to support post-sale service calls. Nitrile impeller is correct for raw water circuits with potential petroleum exposure; if the installation is a clean raw water circuit, a neoprene impeller swap at first service is acceptable. Bidirectional rotation simplifies installation confirm port orientation required before ordering as multiple configurations exist in the 7779 series.