Description

The Jabsco JAB-836-0001-P Neoprene Impeller Kit is a genuine Jabsco flexible impeller kit for marine engine cooling, fresh or salt water transfer, and compatible flexible impeller pump applications. This 9-blade neoprene impeller uses a brass spline-drive insert and is sized at 3-3/4″ diameter x 2-1/2″ depth with a 1″ shaft diameter. The kit is commonly supplied with the impeller, gasket, spline seal, and lubricant for proper service replacement.

Key Features

• Genuine Jabsco neoprene impeller kit.
• Designed for engine cooling and fresh or salt water transfer use.
• 9-blade flexible impeller design.
• Spline-drive hub with brass insert.
• Dimensions: 3-3/4″ diameter x 2-1/2″ depth.
• Shaft diameter: 1″ / 25.4 mm.
• Jabsco profile: O.
• Kit contents commonly include impeller, gasket, spline seal, and lubricant.

Engine Compatibility

This impeller is used in compatible Jabsco flexible impeller pumps for marine engine cooling and water-transfer applications. Jabsco references this impeller profile for the 836-0001 neoprene impeller, and current kit references show 836-0001-P as the service kit version. Common pump-family references include 4360, 4800, 6400, 6590, 7870, 10630, 10770, 10880, 10980, 11790, 21090, 21180, 51200, and Dual applications.

Common engine / OEM cross-reference applications include:

• Cummins: 160596, 166758, 556540, 556850, 21601R
• Caterpillar: 1L4774
• Detroit Diesel: 5193553
• Perkins: 0460027
• Johnson Pump: 09-1029B

Serial Number Fitment Notice

Impeller fitment should always be confirmed by matching the existing impeller, pump model, OEM part number, or engine serial-number parts lookup. Marine engine cooling pumps can vary by engine model, pump assembly, production year, and previous service replacement, so matching by dimensions alone is not always enough.

When This Part Needs Replacement

Replace the impeller if the engine is overheating, raw-water flow is weak, the pump has been run dry, vanes are cracked, stiff, permanently bent, missing, or showing wear at the tips. Jabsco impeller guidance commonly recommends replacing flexible impellers at least once per year, or sooner depending on engine duty and pump use.

Installation Notes

Lubricate the new impeller before installation. Greasing the impeller helps it slide into the pump bore and gives added protection during initial priming. After replacing the impeller and gasket, reinstall the end cover securely and confirm raw-water flow immediately after startup. Never run a flexible impeller pump dry, as lack of water can quickly damage the impeller.

Alternate/Superseded Part Numbers

• JAB-836-0001-P
• 836-0001-P
• 8360001P
• 836-0001
• 00836-0001
• 00836-0001-P
• 331-0001
• UPC: 671880588225

Parts Desk Insight

The safest way to match this impeller is by pump model or original part number first, then by diameter, depth, shaft size, blade count, and drive type. Neoprene is the normal choice for engine cooling and clean water transfer, while oily or heavily contaminated bilge applications may require a different impeller material.

Shipping: Ships same or next day for fast Canada wide shipping.