Jabsco Twist ‘n’ Lock Manual Marine Toilet Pump Assembly

The Jabsco 29040-3000 Twist 'N' Lock Pump Assembly is a complete replacement manual pump for compatible Jabsco 29090 and 29120 toilets.

It replaces current Twist 'N' Lock and earlier grey- or black-handle pump assemblies while retaining the existing bowl and base. The 90-degree locking handle closes the base outlet valve after pumping.

Product Identification

• Brand: Jabsco
• Product name: Jabsco 29040-3000 Twist 'N' Lock Pump Assembly
• Model / part number: 29040-3000
• Marine Scene SKU: JAB-29040-3000
• Product category: Manual marine toilet replacement pump assembly
• Quantity supplied: One selected product or kit

What Is the Jabsco 29040-3000 Used For?

It replaces a worn, damaged or obsolete manual pump assembly on compatible compact and regular Jabsco marine toilets.

What Is Included?

• One complete 29040-3000 pump assembly
• Discharge elbow fitted to the assembly
• Base valve gasket supplied with the replacement pump

What Is Not Included?

• The complete parent product
• Other seals, gaskets, fasteners or accessories unless specifically listed

Which Products or Systems Is This Compatible With?

• Current Jabsco Twist 'N' Lock manual toilets
• Compatible 29090 compact toilet series
• Compatible 29120 regular toilet series
• Earlier grey-handle and black-handle manual toilet pumps where Jabsco specifies replacement by 29040-3000

How Do I Select the Correct Model or Confirm Compatibility?

• Check the toilet model and existing pump arrangement
• Choose a service kit instead where only seals and valves require renewal
• Choose the complete pump assembly where the pump body, piston or lock mechanism is damaged

Construction and Design

• Complete manual piston-pump assembly
• Twist 'N' Lock handle and valve-closing mechanism
• Rotatable discharge elbow
• Corrosion-resistant moulded components

Installation and Safety

Confirm the exact Jabsco model and part number before dismantling the equipment. Isolate electrical power where applicable, close seacocks or valves, drain and clean the system, and follow the manufacturer’s service procedure. Do not overtighten fasteners into plastic components.

Maintenance

Inspect the repaired assembly for leakage, secure mounting and normal operation. Recheck connections after the first use and retain the old part number for future servicing reference.

Key Features

• Complete replacement pump
• Fits compact and regular compatible toilets
• Twist 'N' Lock backflow control
• Supplied with base gasket
• Serviceable marine construction

Frequently Asked Questions

Does this include the toilet base?
No. This listing is for the pump assembly. The 29041-1000 base is a separate component unless buying the dedicated pump-and-base bundle.

Is it preferable to the service kit?
Use the service kit for routine seal and valve renewal; use the complete pump assembly when major pump components or the locking mechanism need replacement.

How do I know whether this part is compatible?
Match the exact Jabsco model or part number first, then confirm the connection size, voltage, dimensions and application shown in the specification table.

Are installation accessories included?
Only the components listed under “What Is Included?” are supplied. Hose, wiring, fittings, switches and fasteners are excluded unless stated otherwise.

Specifications