Impeller CFD optimized design (18% higher flow rate) 

Shaft core S45C steel hard chrome plated (HV850 hardness)

Pre-assembled with ARP 8740 bolt kit (180ksi shear strength)

Adapted to OE No. 52088401AE with Desert Edition Dust Kit

Jeep Wrangler TJ Water Pump

Direct Fit OEM Replacement Mechanical Water Pump for 4.0L Cooling System

As a trusted Automotive Mechanical Water Pump Supplier, OKAYPARTS offers premium Jeep Wrangler TJ Water Pump units engineered for direct fit, high performance, and long service life in thermal management applications. Our mechanical water pumps are designed to meet or exceed original equipment specifications, ensuring stable coolant circulation and reliable engine temperature control across a wide range of operating conditions.

Whether you are sourcing direct fit replacements, bulk volumes for aftermarket distribution, or customized solutions for off-road applications, our Jeep Wrangler TJ water pump product line delivers consistent quality and robust performance with industry-proven materials and manufacturing processes.

Application & Fitment – Jeep Wrangler TJ

This Jeep Wrangler TJ Water Pump is suitable for use on:

• Jeep Wrangler TJ (1997–2006) – direct fit mechanical pump

• Engine Compatibility: 4.0L Inline-6 (common cooling system application)

• Drive Type: Belt-driven mechanical water pump

• Use Cases: OEM replacement, aftermarket upgrade, heavy-duty cooling, off-road readiness

Typical users search for direct fit replacement water pump for Jeep Wrangler TJ 4.0L, Jeep TJ cooling system parts, and high-performance mechanical water pump for 4.0L Jeep engine — all of which are supported by this offering. 

Core OEM Reference & Interchange Numbers

To support accurate part matching and reduce ordering errors, we highlight key OEM and interchangeable references:

• AM003 Series: Includes OE numbers such as 05012366AF, 5012366AD, 5012366AC, 5012366AB, 5012366AA — compatible with Jeep Wrangler II (TJ) 4.0L and similar models.

• Cross-Reference Catalogs: Often compared with legacy Mopar/RockAuto references for Wrangler TJ applications, including similar part fits used across Cherokee/WJ and Wrangler II frames.

Providing clear OE references enhances buyer confidence and reduces the risk of incorrect part procurement.

Product Specifications

Materials & Manufacturing Strengths

We leverage high-quality raw materials and tightly controlled manufacturing processes:

• Aluminum Alloy Housing: Lightweight, corrosion-resistant and thermally stable.

• High-Performance Impeller: Optimized for flow efficiency and reduced cavitation.

• Dual Seal System: Ceramic/fluororubber sealing to prevent leaks under varying pressures.

• Precision Bearings: Engineered for extended life under high RPM and elevated temperatures.

• Surface Protection: Anti-corrosion treatments and dynamic balance testing reduce noise and vibration.

These features ensure your Jeep Wrangler TJ Water Pump delivers durable performance across urban, highway, and harsh terrain applications.

Quality Assurance & Testing Procedures

Each water pump undergoes a rigorous quality plan before shipment:

• 100% Leak Testing to ensure seal integrity;

• Dimensional Inspection via coordinate measuring machines;

• Flow & Pressure Simulation validate cooling performance;

• Dynamic Balance Rotation to minimize vibration;

• Material Hardness & Corrosion Resistance Checks confirm long-term reliability.

These steps underline the difference between “just parts” and engineered, dependable cooling system components.

OEM & Custom Manufacturing Support

OKAYPARTS offers flexible OEM/ODM options if your business needs:

• Custom branding and packaging

• Tailored impeller profiles for improved flow curves

• Modified mounting patterns for special projects

• Batch consistency programs for long-term contracts

With ISO9001, TS16949, and IATF16949 quality standards, our production capacity supports large-scale distribution and repeat orders. 

Why Choose Our Jeep Wrangler TJ Water Pump

✔ Designed for direct fit replacement with exact dimensions
✔ Manufactured with heavy-duty materials for long service life
✔ Precise tolerances to minimize leaks and noise
✔ Extensive compatibility with Wrangler TJ engine cooling systems
✔ Strong OEM/ODM support for aftermarket partners
✔ Competitive pricing and reliable international logistics

This combination boosts buyer conversion confidence and lowers perceived purchase risk — essential for B2B procurement decisions.

Request Quote, Sample & Support

Ready to source Jeep Wrangler TJ Water Pump for your parts inventory or project?
Contact us today for:

👉 Request a Quote
👉 Order a Sample
👉 Vehicle/VIN Compatibility Confirmation

Our engineers can assist with model fitment, technical specifications, and tailored pricing for your business.