Description
The Sherwood 17000K Impeller Kit is a complete raw water pump service kit designed for Sherwood 17000 series pumps used in marine engine cooling systems. This kit includes a precision-molded neoprene impeller along with sealing components and hardware to restore proper water flow and ensure reliable engine cooling.
Built from marine-grade neoprene with a brass hub and keyed drive, this impeller provides excellent flexibility, durability, and resistance to heat and saltwater environments. Replacing a worn impeller helps maintain consistent cooling performance and prevents overheating or engine damage.
This is a very common mid-size diesel impeller, widely used across Caterpillar, Cummins, and John Deere marine engines.
Key Features
- Genuine Sherwood impeller service kit
- Marine-grade neoprene rubber construction
- 12-blade flexible impeller design
- Brass hub with keyed drive
- Includes O-ring, gasket, key, and plug
- OEM-spec fit and performance
Engine Compatibility
Caterpillar Marine Engines
Common applications include:
- CAT 3116
- CAT 3126 / 3126B
- CAT 3208
- CAT C7
- CAT C9
Cummins Marine Engines
- Cummins 6BTA 5.9
- Cummins 6CTA 8.3
- Various Cummins diesel applications using Sherwood pumps
John Deere Marine Engines
- Various John Deere diesel engines using Sherwood raw water pumps
- Cross reference: RE49896
Sherwood Pump Compatibility (Primary Fitment)
Fits Sherwood 17000 series pumps, including:
- P1710 / P1710A / P1710C / P1710X
- P1716 / P1716C / P1716X
- P1719 / P1719X
- P1722 / P1722C / P1722X
- P1726 / P1726X
- P1727 / P1727C / P1727X
- P1730 / P1730C / P1730X
- P1731 / P1732 / P1732C / P1732X
- P1733X
- P176 / P176X
Impeller Specifications (Fitment Critical)
- Diameter: 3-1/4″ – 3-5/16″ (≈84 mm)
- Width: 2-7/8″ (73 mm)
- Shaft: 20 mm (25/32″) keyed
- Keyway: 3/16″
- Blade Count: 12 blades
- Material: Neoprene rubber
What’s Included in the Kit
- Impeller
- O-ring
- Gasket
- Key / drive pin
- End plug / insert (varies by version)
When This Part Needs Replacement
Replace the impeller if you notice:
- Reduced or no cooling water flow
- Engine overheating
- Cracked, missing, or stiff vanes
- Reduced performance under load
Recommended service interval: every 100 hours or annually
Installation Notes
- Lubricate impeller before installation
- Install with correct vane direction
- Ensure key is properly seated
- Replace gasket/O-ring during service
- Check for broken vane debris in system
Alternate / Superseded Part Numbers
OEM Cross References
- Sherwood: 17000K
Major Cross References
- Caterpillar: 7E0321, 1W5664
- Cummins: 3802444, 3897337, 3916852, 3925236
- John Deere: RE49896
Aftermarket Cross References
- Jabsco: 18958-0001
- Johnson Pump: 09-704BT-1
Shipping
Shipping: Ships same or next day for fast Canada wide shipping.
Parts Desk Insight
The 17000K sits right in the middle of Sherwood’s lineup—bigger than 10615K but smaller than 18000K. The key identifier is the 20mm keyed shaft + 12 blades—that combo eliminates most guesswork
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