I have a 1998 series Jabsco - will this replace that pump unit? What is the diameter of the out to the bowl and the diameter of the freshwater intake.

I replaced an older version also. My boat was made in 2003. Should be a direct fit or upgrade. Check the manual or installation guide to be sure 100%.

Our marine toilet is a wilcox - crittendon (head-mate), the pump assembly is discontinued. would the jabsco unit work with it? thanks

Hello, No, the Jabsco pump assembly will not fit onto the head-mate. You will need to replace the complete toilet with the Jabsco 29090-5000. Regards, Xylem.

My jabsco manual pump sometimes works easily and sometimes it takes a lot of pressure to pump and water seeps back in. does this come with duckbills?

I can't imagine the "duck bill", otherwise know as the joker valve (if I understand your description), behaving this way. There are three possibilities that come to mind. One, there is a closed valve or clog somewhere down the discharge line. Second, (and I think this is the most likely option? the lever that you flip to either fill or evacuate the bowl is not completely switched to the side that allows you to pump the bowl empty. Third, the lines have become so constrained due to calcium build up that a wad of toilet paper jams in the narrowed section of pipe and keeps you from pumping. Hope this helps. Good luck.

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🔧 Lock in reliability with every twist — don’t let your boat’s comfort sink!

OPTIMIZED FLOW RATE - Delivers 12.7 liters per minute for quick, reliable waste removal
DURABLE MARINE GRADE BUILD - Crafted by Jabsco, the global leader in marine toilet systems
PRECISION FIT FOR POPULAR MODELS - Seamlessly replaces 29040-2000 in 29090 & 29120 toilets
SIMPLE INSTALLATION MAINTENANCE - Includes base valve gasket for a hassle-free replacement
EFFORTLESS TWIST N LOCK SECURITY - One 90° turn locks the pump, preventing backflow and flooding

The Jabsco 29040-3000 Replacement Pump Assembly is a precision-engineered manual pump designed for 29090 and 29120 series marine toilets. Featuring a secure Twist 'N' Lock handle to prevent siphonic flooding and backflow, it delivers a robust 12.7 L/min flow rate. Manufactured by Jabsco, the world’s leading marine toilet system brand, this durable white pump assembly includes a base valve gasket for easy installation and reliable performance on the water.

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Manufacturer	Jabsco
Part number	29040-3000
Item Weight	454 g
Product Dimensions	35.56 x 20.32 x 10.16 cm; 453.59 g
Item model number	29040
Size	Packs
Color	White
Style	Pump Assembly
Material	Plastic
Power source type	Manual
Voltage	12 Volts (DC)
Item Package Quantity	1
Flow Rate	12.7 Liters Per Minute
Specific uses	personal
Included components	Jabsco 29040-3000 Replacement Pump Assembly, Twist 'n' Lock Manual Toilets, Fits 29090 & 29120,White
Batteries Included?	No
Batteries Required?	No

Jabsco29040-3000 Replacement Pump Assembly, Twist 'N' Lock Manual Toilets, Fits 29090 & 29120,White

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