Johnson Pump — Impeller — 09-702B-1 — 189-09702B1
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Johnson Pump Impeller 09-702B-1
Johnson Pump 09-702B-1 is an MC97/EPDM flexible impeller for marine engine raw-water cooling pumps. SPX FLOW Johnson Pump catalogs 09-702B-1 as the replacement for Sherwood 10615K and Jabsco 18948-0001. The impeller measures 65.4 mm (2.57 in) outside diameter by 41.4 mm (1.63 in) wide and uses a keyed hub.
Key Features
- Johnson Pump part number: 09-702B-1
- Material: MC97/EPDM
- Outer diameter: 65.4 mm (2.57 in)
- Width: 41.4 mm (1.63 in)
- 12 flexible blades
- Keyed drive hub
- Shaft/hub bore of approximately 15.8 mm (0.622 in) for this impeller family
Compatible Applications
- Raw-water pump installations across Chris-Craft, Chrysler Marine, Commander, Crusader, Gray Marine, Isuzu, Marine Power, OMC, Perkins, Pleasurecraft Marine/PCM, Volvo Penta, and Westerbeke engines
- Specific references: Cummins 4B, Onan MDL6, Chris-Craft 454, Pleasurecraft 454
- Engine/pump references: Crusader 97179, Chrysler 3675763, Chrysler 4142878
Fitment Notice
Match this impeller to the existing pump or previous impeller number, not just the engine manufacturer. Johnson Pump 09-702B-1 is the correct Johnson replacement for Sherwood 10615K and Jabsco 18948-0001.
Jabsco 17954-0001 is a different part and is not the Johnson cross-reference for this impeller. SPX FLOW assigns 17954-0001 to Johnson Pump 09-703P-1, a larger impeller measuring 66.7 mm (2.63 in) diameter by 51 mm (2.01 in) wide. Confirm the exact Jabsco or Sherwood number on the old part before ordering.
When This Part Needs Replacement
- Cracked, torn, or missing vanes
- Hardened or permanently deformed blades
- Reduced raw-water flow
- Engine overheating related to inadequate seawater circulation
- Visible deterioration after extended storage
- Damage discovered during pump inspection
If pieces are missing from the old impeller, inspect downstream cooling passages, oil coolers, and heat exchangers for fragments before returning the engine to service.
Installation Notes
Inspect the pump housing, cover plate, and shaft before installing the new impeller, since a badly scored housing or cover plate can reduce pump performance even with a new impeller. Lubricate the impeller during installation, make sure the key engages correctly, and use the appropriate sealing component for the specific pump being serviced.
Part Details
- Manufacturer part number: 09-702B-1
- Cross-references: Sherwood 10615, Sherwood 10615K, Jabsco 18948-0001, Volvo Penta 835874, Cummins 3908220, Pleasurecraft/PCM R061017, Sierra 23-3300, Oberdorfer 8922, Westerbeke 13930
Technical FAQ
Does this replace Jabsco 17954-0001?
No. That number belongs to a different, larger impeller (Johnson 09-703P-1). This impeller replaces Jabsco 18948-0001.
Does this replace Sherwood 10615K?
Yes, Johnson Pump catalogs 09-702B-1 as the direct replacement for Sherwood 10615K.
How do I confirm fitment?
Match the existing pump or impeller number rather than the engine brand alone, since several similar-looking impellers exist across these engine families.
Parts Desk Insights
Best use case: Replacing a worn Sherwood 10615K or Jabsco 18948-0001 impeller on a raw-water cooling pump with a direct OEM-equivalent part.
Most common mistake: Confusing this impeller with the similar Jabsco 17954-0001, which is actually a larger part cross-referenced to a different Johnson kit (09-703P-1).
Sizing/fitment guidance: Confirm the outer diameter (65.4 mm) and width (41.4 mm) against the original impeller or pump number before ordering.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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For return authorization, please contact our support team before shipping anything back.