Jabsco 29040-3000 Manual Pump Assembly, Twist 'n' Lock Handle, Fits 29090 and 29120 Series Toilets

The Jabsco 29040-3000 Manual Pump Assembly is a complete replacement hand pump for Jabsco Twist 'n' Lock manual marine toilets, covering both the 29090 compact bowl series and the 29120 regular bowl series. Rather than replacing individual internal seals and valves piece by piece, this assembly lets you unscrew the worn pump unit and install the entire replacement in one step, restoring full flushing performance without extensive plumbing work.

The pump uses Jabsco's Twist 'n' Lock handle design: a simple turn of the handle locks the pump in place and helps guard against waste backflow and siphonic flooding, which matters most on toilets installed at or below the waterline. The housing is molded in white plastic chosen for its corrosion resistance in the marine environment, so it holds up to continuous exposure to saltwater and onboard humidity.

This is a direct fit replacement for Jabsco's Twist 'n' Lock manual toilet line, specifically the 29090 and 29120 series, and it installs using the existing mounting points on those toilets. Because it is a genuine Jabsco part, buyers get exact fitment and consistent operation instead of the guesswork that comes with generic aftermarket pump substitutes.

Specifications

• Brand: Jabsco
• Manufacturer Part Number: 29040-3000
• Product Type: Manual Toilet Pump Assembly
• Material: Plastic
• Color: White
• Weight: 2.5 pounds
• Handle Type: Twist 'n' Lock
• Fits Models: Jabsco 29090 and 29120 series toilets
• UPC: 671880587914
• Category: Marine Toilet Parts

Fitment

• Jabsco 29090 series manual toilets (Twist 'n' Lock, compact bowl)
• Jabsco 29120 series manual toilets (Twist 'n' Lock, regular bowl)

Frequently Asked Questions

What does the Jabsco 29040-3000 pump assembly fit? The Jabsco 29040-3000 is a replacement manual pump assembly built for Jabsco Twist 'n' Lock toilets in the 29090 series (compact bowl) and the 29120 series (regular bowl).

Is this a full pump replacement or just a repair kit? It is a complete pump assembly, not a partial seal or gasket kit. The Jabsco 29040-3000 lets you unscrew the old pump unit and install the entire new assembly in one piece.

How does the Twist 'n' Lock handle work? On the Jabsco 29040-3000, the pump handle twists to lock into position, a design that helps prevent waste backflow and siphonic flooding when the toilet is installed at or below the waterline.

What material is the pump assembly made of? The Jabsco 29040-3000 pump assembly is molded in white plastic, chosen for corrosion resistance in marine sanitation systems.

How much does the Jabsco 29040-3000 weigh? The Jabsco 29040-3000 manual pump assembly weighs 2.5 pounds.

Is the Jabsco 29040-3000 a genuine Jabsco part? Yes, the 29040-3000 is a genuine Jabsco manual pump assembly, not a generic aftermarket substitute, so it matches the original fit and operation of Jabsco Twist 'n' Lock toilets.

Is installation difficult? No. The Jabsco 29040-3000 is designed as a direct swap: unscrew the existing worn pump assembly from the 29090 or 29120 toilet base and screw in the replacement unit.

Will this fit a Jabsco 29090 compact bowl toilet? Yes. The 29040-3000 pump assembly is a listed fit for the Jabsco 29090 series compact bowl manual toilet.

Will this fit a Jabsco 29120 toilet? Yes. The 29040-3000 pump assembly is a listed fit for the Jabsco 29120 series regular bowl manual toilet.

Does replacing the pump assembly stop leaks and siphoning? The Twist 'n' Lock design of the Jabsco 29040-3000 pump is built to guard against waste backflow and siphonic flooding, which is the main reason to replace a worn pump on a toilet installed at or below the waterline.

What color is the Jabsco 29040-3000 pump assembly? The pump assembly is white.