Jabsco 51510-9001 Flexible Impeller Engine Cooling Pump
If you're dealing with a raw water pump that's lost its prime, worn out its impeller, or just isn't keeping your engine as cool as it should, the Jabsco 51510-9001 is built to solve that problem reliably. This bronze pedestal pump uses a flexible neoprene impeller design that's become the standard for engine cooling on both leisure and work boats, and it does the job without needing a running head start — it self-primes straight from dry, even after long periods of sitting unused.
What makes this pump versatile is that it isn't locked into a single use case. While engine cooling is its most common job, the same construction handles bilge pumping, general water circulation, washdown duties, and even non-marine tasks like agricultural liquid transfer and industrial mixing. It can spin in either direction without losing efficiency, resists airlocking, and tolerates a fair amount of solids in the water without clogging — the kind of practical durability that matters when a pump is doing double duty in less-than-ideal conditions.
Because it's a bare-shaft pedestal pump end, it's meant to pair with your existing drive setup rather than replace the whole assembly, which keeps installation straightforward for anyone already familiar with their engine's cooling circuit. Combined with a carbon/ceramic mechanical seal, a stainless steel shaft, and sealed ball bearings, it's built from the kind of corrosion-resistant materials that hold up in saltwater environments over the long haul.
Key Features
- Self-priming flexible impeller design, primes from dry
- Bronze pump body for corrosion resistance
- Neoprene impeller for reliable water transfer
- Carbon/ceramic mechanical shaft seal
- Stainless steel 12mm shaft
- Sealed ball bearings for extended service life
- Bare-shaft pedestal pump end (no motor included)
- Runs in either rotational direction without loss of efficiency
- Resists airlock and handles solids in suspension
Applications
- Marine engine cooling
- Bilge pumping
- Water circulation
- Washdown systems
- Industrial circulating and transferring
- Velocity mixing
- Agricultural water transfer for livestock
- Liquid ballast transfer
Specifications
- Port size: 3/8" NPT
- Flow rate: approximately 2.2–2.3 GPM (10–10.5 LPM) at 1500 RPM
- Self-priming lift: up to 11 ft (3.5 m) from dry
- Impeller material: Neoprene
- Seal type: Carbon/ceramic mechanical
- Shaft material: Stainless steel, 12mm
- Bearing type: Sealed ball
- Body material: Bronze/brass
FAQs
Q: Does the Jabsco 51510-9001 include a motor?
No, this is a bare-shaft pedestal pump end only. It's designed to be driven by your existing engine or motor setup rather than sold as a complete motorized unit.
Q: Can this pump run continuously without water flow?
No. Like most flexible impeller pumps, running it dry for extended periods can damage the neoprene impeller. It's designed to self-prime quickly from dry, not to operate without liquid moving through it.
Q: Is the 51510-9001 suitable for freshwater use, or only saltwater?
It works in both. The bronze body and stainless steel shaft are built to resist saltwater corrosion, but the pump performs equally well in freshwater cooling, circulation, or transfer applications.
Q: What impeller kit is compatible with this pump?
It uses a Jabsco impeller kit matched to the 51510-9001 model, along with corresponding minor and major service kits for seals and wear components during routine maintenance.
Q: Can the pump rotation direction be changed after installation?
Yes. The flexible impeller design allows it to pump effectively in either rotational direction, so it can be adapted to different drive orientations without a performance penalty.
CLRMarine
