Gecko AquaFlo 4.0 HP XP3 Wet End Pump Two and a Half Inch MBT and Six Point Three Inch Diameter 48 56 Frame

Gecko AquaFlo 4.0 HP XP3 Wet End (91042140-000) is built for spa enthusiasts who demand precision, reliability, and effortless performance from their hot tub pump system. Backed by Gecko Alliance’s 25 years of experience in designing intuitive interfaces and robust controls, this wet end delivers a seamless, long-lasting pump experience that spa owners and service professionals can trust. The XP3 wet end is engineered to be not just powerful, but straightforward to install, rotate, and service, so your spa stays in top condition with minimal downtime.

Key advantages that set this wet end apart

• 2-1/2" MBT suction and discharge designed for reliable flow and a compact footprint, with a 2-1/2" pipe size on both inlet and outlet for compatibility with many spa plumbing configurations.
• 4.0 HP XP3 compatibility tailored for 48 or 56 frame thru-bolt motors, with the flexibility of single or dual-speed motor options to suit varying spa performance needs.
• Side discharge orientation plus a 90-degree rotation capability, letting you easily adjust the discharge position to fit your spa cabinet layout without rearranging plumbing.
• Durable, easy-to-service wet end featuring a complete assembly that includes volute, impeller, seal, wear ring, suction cover, O-rings, drain plug and screws — designed for quick replacement and minimal downtime.
• Precise connections with 3-1/16" od suction and discharge connections and Male Buttress Thread (MBT) for secure, leak-resistant piping. Drain plug can be positioned at 3, 4, 6, or 9 o'clock for flexible maintenance access.
• Strong build, clear part lineage volute fastened with 8 screws to ensure a tight seal and reliable performance over the long term.

What’s included with the complete wet end

• Volute and sealplate assembly (with 8 screws)
• Impeller (Gecko part 91698400)
• Wear ring
• Suction cover and o-ring
• Drain plug and drain plug o-ring
• Suction cover screws
• All necessary hardware for a complete, ready-to-install wet end

Specifications at a glance

• Motor compatibility: 4.0 HP, 48 or 56 frame thru-bolt (motor and unions sold separately)
• Frame options: 48/56 frame wet end for XP3 pump
• Suction/Discharge: 2-1/2" MBT
• Discharge direction: Side discharge with 90° rotation capability
• Connections: 3-1/16" OD suction and discharge, MBT threads
• Drain position options: 3, 4, 6, or 9 o'clock
• Included component IDs: Volute/Sealplate 92770735; Impeller 91698400

Who is this wet end ideal for?

Owners upgrading aging spa pumps or replacing worn components will appreciate the straightforward compatibility with 4.0 HP XP3 systems and the flexible discharge orientation that makes installation in tight spa cabinets much easier. Service technicians benefit from a complete, assembled wet end that reduces downtime and streamlines repairs. If you’re maintaining a spa that uses Gecko Alliance equipment, this wet end offers a reliable, cost-efficient path to restoring peak performance without unnecessary customization.

Why choose Gecko Alliance and this XP3 wet end?

Gecko’s design philosophy centers on the user’s experience—from intuitive pump controls to dependable, efficient performance. The AquaFlo XP3 wet end embodies that approach with thoughtful features like 90-degree discharge rotation, MBT connections, and a comprehensive kit that covers all essential components. Compared to other options, this wet end emphasizes serviceability, precise fitment, and long-term reliability, backed by Gecko’s extensive product manuals and support network. Bath & Spa Parts Online stands behind Gecko, offering fast delivery and expert guidance to help you select, install, and maintain the right components for your spa system.

Note: Motor and unions are sold separately. If you’re unsure about compatibility with your existing setup, our Product Specialists are ready to assist by phone, chat, or email during normal business hours. This Gecko AquaFlo XP3 wet end is designed to deliver dependable performance, helping you enjoy smoother operation, quieter operation, and longer service intervals for your spa.