Johnson Pump F8B-5 Electric Clutch Pump — 1-1/4" NPT — 12V — 2xA Pulley — 101302284
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Johnson Pump F8B-5 Electric Clutch Pump — 1-1/4" NPT — 12V — 2xA Pulley — 101302284
The Johnson Pump F8B-5 is a heavy-duty engine-driven electric clutch pump designed for bilge and washdown applications on commercial and offshore vessels. The electromagnetic clutch allows the pump to be engaged and disengaged on demand at the push of a button — without being at the pump — giving you full pumping power exactly when you need it. Built with a bronze body, stainless steel shaft, and permanently lubricated double ball bearings, this is a pump built for long service life in demanding marine environments.
Key Features
- Electromagnetic clutch — engage and disengage pump on demand from a remote button
- Bronze pump body for corrosion resistance
- Stainless steel shaft with permanently lubricated double ball bearings
- Mechanical seal
- 1-1/4" NPT inlet/outlet connections
- 12V electromagnetic clutch
- 2xA groove pulley
- Full or reduced cam configuration available
- Vacuum switch connection port included
- Wearing parts are field-replaceable; service kits available
- Includes pump and clutch assembly
Specifications
- Model: F8B-5
- Connection: 1-1/4" NPT
- Voltage: 12V
- Pulley: 2xA groove
- Body: Bronze
- Shaft: Stainless steel
- Bearings: Permanently lubricated double ball bearings
- Seal: Mechanical
- Weight: approx. 10 lbs (4.5 kg)
- Note: GPM rating measured at 1,750 RPM — contact us for full performance curve data
Compatibility
Direct replacement for Jabsco 6400-0004. Verify belt and pulley compatibility with your engine drive configuration before ordering.
Parts Desk Insights
Best use case: The F8B-5 electric clutch pump is the right choice for commercial fishing vessels, offshore sportfishers, and workboats that need a high-capacity bilge or washdown pump that can be controlled remotely without manual engagement at the pump. The electromagnetic clutch is particularly valuable in engine rooms where access is limited — the pump can be run from the helm or a remote switch without anyone entering the engine compartment. The bronze body and stainless shaft make it well-suited for saltwater environments. Service kits are available for all wearing parts, making long-term maintenance straightforward. If you are replacing a Jabsco 6400-0004, this is the correct direct replacement. Confirm belt size and pulley groove compatibility with your engine before ordering.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.