Jabsco Twist ‘n’ Lock Manual Pump Assembly – 29040-3000

Essential Upgrade for 29090 & 29120 Series Manual Toilets

The Jabsco 29040-3000 is the complete replacement pump assembly featuring the innovative Twist ‘n’ Lock safety handle. Designed as a direct drop-in replacement for Jabsco manual toilets, this assembly is the most effective way to refresh your head system's performance and prevent the dreaded "backflow" or flooding often associated with marine toilets.

With a single 90° turn of the handle, the piston is locked down against the discharge valve, providing a physical seal that keeps waste in the plumbing and water out of the bowl.

Designed for 24V Jabsco Electric Toilets

Engineered specifically for 24V DC systems, this motor/pump assembly delivers the correct power, speed, and torque required for proper waste maceration and evacuation in compatible Jabsco 37010 Series toilets.

Complete Motor & Pump Replacement Assembly

This unit includes both the electric motor and pump, eliminating the need to replace individual components. It provides a direct-fit solution that simplifies repairs and reduces downtime when servicing marine toilets.

Reliable Waste Transfer Performance

The pump is designed to efficiently move waste and flush water through the sanitation system, ensuring smooth operation, consistent flushing, and reduced risk of clogs or incomplete evacuation.

Marine-Grade Construction

Built for the harsh marine environment, the 37041-0011 features:

• Corrosion-resistant components

• Sealed motor design for moisture protection

• Durable construction to withstand vibration and continuous marine use

This ensures long service life in both recreational and commercial vessels.

Easy Installation & Serviceability

As a genuine Jabsco replacement part, this motor/pump assembly installs directly into compatible toilets without modification. Using OEM components helps maintain factory performance, reliability, and warranty integrity.

Key Features & Benefits

• Twist ‘n’ Lock Safety: The handle features a locking mechanism that secures the discharge valve shut. This is a critical safety feature for installations where the toilet is below the waterline (heeled or at rest).

• Complete Overhaul in One Box: Instead of replacing individual O-rings and valves, this assembly replaces the entire pumping mechanism, including the cylinder, piston, handle, and seals.

• Universal Fit: Fully compatible with Jabsco Manual Toilet models 29090-Series (Compact) and 29120-Series (Regular Household Size).

• Smoother Operation: Features a self-priming, double-acting piston pump that makes flushing easier and more efficient than older, worn-out units.

• Multi-Angle Discharge: The pump can be mounted for left-handed or right-handed operation, providing flexibility for tight head compartments.⁶

Technical Specifications

Why Replace the Entire Assembly?

Over time, salt crystals and mineral deposits (calcium) build up inside the pump cylinder, creating friction that wears down the piston seal. While "service kits" are available, replacing the entire 29040-3000 assembly is often more cost-effective. It eliminates the risk of a cracked housing and ensures that every internal component is factory-new, providing "like-new" pumping action.

Installation & Maintenance Pro-Tips

• Drop-In Ready: The assembly is secured to the toilet base with four screws. It can be replaced in minutes without removing the entire toilet from the boat.

• Lubrication: For the longest life, apply a small amount of marine-grade silicone grease to the piston rod periodically.

• Winterization: Ensure all water is drained or replaced with marine-grade antifreeze during storage to prevent the plastic housing from cracking in freezing temperatures.

Upgrade Your Marine Head Today

Don't wait for a leak or a stuck handle to ruin your time on the water. Upgrade to the Jabsco 29040-3000 Twist ‘n’ Lock assembly from Anchor Express for a safer, more reliable marine sanitation system.

Ideal Applications

• Repair or refurbishment of Jabsco 37010 Series toilets

• Commercial vessels with 24V sanitation systems

• Recreational boats and yachts using 24V electric heads

• Preventive maintenance or replacement of worn components

Why Choose Genuine Jabsco Replacement Parts

Jabsco is a global leader in marine sanitation systems, trusted for quality, reliability, and long-term support. Using the 37041-0011 Motor/Pump Assembly ensures your toilet continues to operate as designed, with factory-approved performance and durability.