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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Jabsco 29040-3000 Replacement Hand Pump Assembly, Twist 'N' Lock Manual Marine Toilets, Fits Jabsco 29090 & 29120 Marine Toilet

Jabsco 29040-3000 Replacement Hand Pump Assembly, Twist 'N' Lock Manual Marine Toilets, Fits Jabsco 29090 & 29120 Marine Toilet

Product ID: 1604773

Details

Brand
Jabsco
Color
White
Item Weight
1 Pounds
Material
Plastic
Number of Items
1

🔄Twist 'n' Lock secure handle

⚙️Quick, tool-free installation

🛡️Corrosion-resistant durability

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Description

⚓ Keep your marine throne flawless with Jabsco’s twist-to-secure power!

MARINE GRADE DURABILITY - Built to resist corrosion and harsh sea conditions for long-lasting peace of mind.
PLUG PLAY REPLACEMENT - Swap your old pump in minutes without specialized tools or plumbing skills.
COMPACT LIGHTWEIGHT DESIGN - Optimized size and weight to keep your boat efficient without sacrificing power.
GLOBALLY TRUSTED PERFORMANCE - Join thousands of boaters worldwide who rely on Jabsco’s proven manual pump system.
EFFORTLESS TWIST N LOCK ACTION - Secure your marine head with a simple, reliable twist—no leaks, no mess.

The Jabsco 29040-3000 Replacement Hand Pump Assembly is a premium, corrosion-resistant manual pump designed for Twist 'n' Lock marine toilets (models 29090 & 29120). It offers a secure twist-lock handle to prevent waste backflow and flooding, ensures quick and easy installation without tools, and delivers trusted, durable performance in demanding marine environments. Ideal for boat owners seeking reliable, hassle-free sanitation solutions.

Specifications

ASIN	B001794BS0
Best Sellers Rank	#48,196 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2,781 in Boating & Sailing
Brand Name	Jabsco
Color	White
Customer Reviews	4.7 4.7 out of 5 stars (1,299)
Global Trade Identification Number	00671880587914
Included Components	Jabsco 29040-3000 Replacement Pump Assembly, Twist 'n' Lock Manual Toilets, Fits 29090 & 29120,White
Item Type Name	Jabsco 29040-3000 Replacement Pump Assembly, Twist 'n' Lock Manual Toilets, Fits 29090 & 29120,White
Item Weight	1 Pounds
Manufacturer	Jabsco
Manufacturer Part Number	29040-3000
Manufacturer Warranty Description	Warranty
Material Type	Plastic
Model Number	29040
UPC	784427364944 666670317321 611104319075 088020785374 086000297800 832428111125 796793947119 796793938445 190283683363 757183471904 078074776015 090090052751 671880587914
Unit Count	1.0 Count

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$293.07

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In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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