The Jabsco 22040-0501 is a genuine Jabsco bronze flexible impeller seawater pump built as a direct engine-mounted replacement for raw water cooling on specific marine diesel engines. It bolts to the engine through a six-bolt mounting flange, uses a five-screw end cover, runs a large size 270 neoprene impeller and has 2 inch (51 mm) ports, so it matches the original installation without changes to hoses or brackets.
One detail matters during installation or rebuild: the drive end of the shaft uses a left-hand thread. Treating it like a standard thread can strip the shaft or damage the drive. The bronze body resists salt water corrosion, and the flexible impeller self-primes and moves the high volume of cooling water a large diesel needs to stay at a safe temperature under load.
Key Features
- Genuine Jabsco engine-mounted seawater cooling pump
- Bronze body for long life in salt water
- Six-bolt mounting flange and five-screw end cover
- Size 270 flexible neoprene impeller for high cooling flow
- 2 inch (51 mm) ports
- Left-hand thread on the shaft drive end
Applications
- Raw water cooling on marine diesel engines that use pump 22040-0501
- Commercial, workboat and yacht engine rooms
- Replacing a worn or leaking original seawater pump
- Engine cooling system overhauls
Specifications
- Part Number: 22040-0501
- Pump Type: Flexible impeller, engine driven
- Body Material: Bronze
- Impeller: Neoprene, size 270
- Mounting: Six-bolt flange
- End Cover: Five-screw
- Port Size: 2 in (51 mm)
- Shaft Drive End: Left-hand thread
Frequently Asked Questions
Q: How do I confirm this pump matches my engine?
Compare the number on your existing pump's plate and the engine model with our team before ordering. Send us a photo of the pump plate and we will confirm it.
Q: What should I do before first start-up?
Make sure the seacock is open and the suction line is airtight. The pump self-primes, but it depends on water for lubrication and must not run dry.
Q: Which service parts should I keep ready?
Keep a spare impeller, end cover gasket and shaft seal aboard so the pump can be serviced without waiting on parts.
Q: Why is the left-hand thread important?
If the drive nut or coupling is turned the wrong way during removal, the shaft threads can be damaged. Always loosen in the correct direction for a left-hand thread.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct flange mount seawater cooling pump.
CLRMarine
