CAT Pumps 899110 Econo Valve Kit NBR 6 Assemblies - 1652

Restore Reliable Pressure in Minutes

The Cat Pumps 899110 Econo Valve Kit is an OEM-style replacement set designed to restore pressure and flow in 5DX, 6DX, 66DX, and select 5CP series plunger pumps. Built around six complete valve assemblies with stainless steel construction and NBR sealing components, this kit is designed to bring worn pump heads back to full operating spec without sourcing individual parts one at a time.

What Makes the 899110 Kit Different from Generic Valve Sets

The 899110 Econo Valve Kit is engineered around the specific flow and pressure characteristics of these popular Cat Pumps models. The Econo design offers an economical servicing solution compared to individual pieces, without sacrificing fit or material quality.

• Matched stainless steel valve assemblies – All inlet and discharge valves are balanced as a set for consistent sealing force and lift height across every bore.

• NBR (Buna-N) components for general-service fluids – Using quality NBR components ensures tight seals under high-pressure conditions, with reliable resistance to water and common cleaning detergents.

• Direct drop-in fit for specified models – Seat diameters, cage geometry, and spring dimensions are designed to match OEM manifold tolerances on 5DX, 6DX, 66DX, and compatible 5CP pumps.

• Time-saving complete kit packaging – Technicians receive the full quantity of valve assemblies needed for a complete head refresh in one package, eliminating part-number hunting across multiple catalogs.

• Optimized for econo manifolds – Compatible with Cat Pumps "ECONO MFLD" style heads, so there's no guessing about which valve configuration your economy manifold requires.

Product Details:

• Intended pump families – The Econo Valve Kit fits 5DX, 6DX, 66DX, and 5CP pumps, including models such as 5CP3120, 5PP3140, and related econo-manifold variants (CSS, 66PPX designations).

• Valve construction – It includes stainless steel valve assemblies with NBR components, matching Cat Pumps' original material specifications for corrosion resistance and sealing performance.

• Number of valves included – Six complete valve assemblies per kit, providing the full quantity of inlet and discharge valves required to service one pump head.

• Configuration – Assemblies typically arrive pre-built with cage, spring, poppet/plate, and sealing element grouped together, reducing assembly errors and speeding up installation.

• Fluid compatibility – Suited for cold and moderate-temperature water (standard operating range of 34°F to approximately 140°F), detergents, and many general cleaning solutions.

• Model identification – Verify the pump tag (e.g., 5DX50G1, 66DX40G1I, 5CP3120) against service literature before ordering. Pump Data Sheets list specifications and parts for each model, making cross-referencing straightforward. Repair kits contain material codes for parts construction, so confirming the correct code ensures material compatibility.

Maintenance Tips to Maximize Valve Kit Life

• Maintain clean inlet water – Use proper inlet filtration and strainers to keep debris, sand, and scale from reaching the manifold. Even small particles can nick stainless steel valve seats or hold a valve open, causing immediate pressure loss.

• Avoid extended dry-running – Operating without adequate water supply quickly overheats valves and seals. Even a few seconds of dry running can damage NBR components beyond recovery. If you notice the pump losing prime, shut down and investigate before continuing.

• Use compatible fluids and temperatures – Confirm that chemicals and operating temperatures fall within the recommended range for stainless/NBR construction (standard range up to approximately 140°F).

Frequently Asked Questions

Which Cat pump models does the 899110 kit fit? The Econo Valve Kit fits 5DX, 6DX, 66DX, and 5CP pumps, including specific models such as 5CP3120, 5PP3140, and related econo-manifold variants (CSS, 66PPX). Always verify against your pump nameplate or service literature before ordering.

Does this kit include seals or only valves? The 899110 is a valve-focused kit containing six complete valve assemblies. Seal kits (covering plunger seals, O-rings, and related wear components) are sold separately under different part numbers. For a comprehensive overhaul, you may need both. Check your pump's parts list to determine the correct seal kit to pair with the 899110.

Ready to Bring Your Cat Pump Back to Spec?

The Cat Pumps 899110 Econo Valve Kit gives you everything needed to restore reliable pressure and smooth operation in your 5DX, 6DX, 66DX, or compatible 5CP pump-six matched valve assemblies, stainless steel construction, and NBR sealing components, all in one package.