Jabsco 17937-0001-P Flexible Neoprene Impeller, Service Kit

As the inventor of the flexible impeller pump and an OEM partner to leading engine manufacturers, Jabsco stands worldwide for reliable engine cooling under the harshest conditions. Numerous engines come standard with Jabsco raw water pumps. The original impellers developed for this purpose are used in both seawater cooling systems and demanding industrial applications, and are known for their high dimensional accuracy and long service life.

Technical Data & Parameters

• Manufacturer: Jabsco (Xylem)
• Part Number (MPN): 17937-0001-P
• Impeller Profile / Blades: Y-profile / 10 blades
• Outer Diameter (A): 2-9/16" / 65 mm
• Width/Depth (B): 2" / 51 mm
• Shaft Diameter (C): 5/8" / 16 mm
• Drive Type: Spline Drive
• Hub Material: Corrosion-resistant brass
• Body Material: Premium Neoprene (optimized for fresh, salt, and process water)
• Temperature Range: Approx. 4 °C to 80 °C

Scope of Delivery (Service Kit)

In addition to the high-performance impeller, the complete set includes the exact-fit housing gasket for the most common pump types as well as special impeller lubricant for a professional replacement:

• 1 x Original Jabsco Impeller (17937-0001)
• 1 x Gasket Set / O-Ring (890-0000)
• 1 x Spline Seal / Shaft Plug (4345)
• 1 x Impeller Lubricant (Glycerin, 4g tube)

OEM References & Cross-References

• Caterpillar: 7C3286, 7C-3286
• Mercruiser / Mercury: 47-8013326-01, 8M0067063
• Oberdorfer: 7441
• Perkins: 0460024, 24880031
• Sherwood: 182000, 18200
• Vetus: IMP00301, STM8250
• Volvo Penta: 21951356, 3841697, 801277, 825941, 877061-2, 21422632
• VW: 065.121.021, 065 121 021, 065121021, 065.198.243, 065 198 243, 065198243
• Yanmar: 127610-42200, 127610-42270, 120650-42310

Model Comparison: 17937 Versions at a Glance

• 17937-0001-P (this article): The complete service kit including lubricant and the most common body gasket for a professional impeller replacement.
• 17937-0001B: Single impeller (bulk) without any accessories.
• 17937-0003: Version made of oil-resistant Nitrile (NBR) for bilge, ballast, or industrial applications with media containing mineral oil.

Note on Impeller Markings: Original Jabsco impellers often have the internal production number 17937-0001 or 17937-0101 molded directly into the rubber. These represent the identical component, and the service kit 17937-0001-P provides the exact matching replacement.

The Advantages of Jabsco Original Quality

• Specific Rubber Compound: Guarantees precise elasticity and dimensional stability even at extreme fluid temperatures.
• Constant Flow Rate: Reliably stable volume flow over many operating hours.
• Vulcanized Core: The high-strength vulcanization bond between the robust brass hub and the neoprene body prevents the elastomer from detaching under load. The maximum drive torque is fully maintained, and spinning on the shaft is effectively minimized.
• Excellent Memory Effect: The blades straighten up precisely millions of times, ensuring fast and powerful self-priming.
• Dimensional Accuracy: Tight manufacturing tolerances ensure an optimal fit in the pump housing and maximize efficiency.

Maintenance, Storage & Service Life

• Replacement Interval: As a central wear part of the raw water cooling system, the impeller should be replaced annually as a precaution. A failure can lead to overheating and severe engine damage. Commercial or intensively used systems may require shorter maintenance intervals.
• Dry Run Protection: Always use the supplied glycerin-based impeller lubricant during installation to prevent friction damage (scorch marks) during the first startup.
• Storage: Store in a cool, dark, and dry place. Maximum shelf life before initial commissioning: 5 years.

Practical Tip: Always carry at least one spare kit in your inventory or on board for critical systems. Use an impeller puller for removal to avoid damaging the bronze pump housing.