Product Introduction

• Structure: A robust centrifugal pump with a cast-iron housing, a sealed bearing assembly, and a belt-driven pulley. It features a corrosion-resistant impeller, a pressure relief valve, and a threaded coolant outlet for secure hose connection.

• Performance: Delivers a consistent flow of coolant through the engine block and radiator, efficiently dissipating heat to maintain optimal operating temperatures. The sealed bearing and durable construction ensure long service life even under heavy load and high-temperature conditions.

Core Function

1. Coolant Circulation: Circulates engine coolant between the engine block, cylinder head, and radiator to dissipate excess heat.

2. Temperature Regulation: Maintains a stable engine operating temperature, preventing overheating and ensuring efficient combustion.

3. System Protection: The integrated pressure relief valve prevents damage from excessive coolant pressure, protecting hoses, the radiator, and other system components.

Cooling Water Pump 6QAJ-1307010D YuChai – Premium OEM-Quality Replacement for Heavy-Duty Applications

When your engine overheats, every minute of downtime eats into your bottom line. The Cooling Water Pump 6QAJ-1307010D YuChai is engineered to deliver consistent, high-volume coolant circulation that keeps YuChai 6QAJ series engines running within optimal temperature ranges — even under the most punishing load conditions. Sourced directly from METTLEAD Truck Parts with strict factory quality control, this pump meets OEM specifications while offering the cost efficiency your procurement team demands.

Key Features and Benefits of Cooling Water Pump 6QAJ-1307010D

• OEM-Matched Performance: Designed to meet or exceed original YuChai specifications for part number 6QAJ-1307010D, ensuring seamless drop-in installation with zero modification.
• High-Efficiency Impeller Design: Precision-cast impeller delivers optimal coolant flow rates across the full RPM range, preventing hot spots and ensuring uniform engine temperature distribution.
• Heavy-Duty Mechanical Seal: Silicon carbide seal face resists cavitation, corrosion, and thermal cycling — engineered to prevent coolant leakage for over 200,000 km of operation.
• Premium Bearing Assembly: Dual-row sealed bearings provide extended service life and reduced NVH (Noise, Vibration, Harshness) compared to aftermarket alternatives.
• Corrosion-Resistant Housing: High-strength cast iron body with anti-corrosion treatment withstands aggressive coolant chemistries and thermal stress.
• Reduced Total Cost of Ownership: Factory-direct pricing from METTLEAD eliminates middlemen — giving procurement managers competitive per-unit costs without sacrificing reliability.

Technical Specifications

Application Scenarios — Where This Pump Works Hardest

The Cooling Water Pump 6QAJ-1307010D YuChai is the heartbeat of the cooling system in a wide range of heavy-duty commercial vehicles and industrial machinery powered by the YuChai 6QAJ engine platform:

• Long-Haul Trucks: Maintains stable coolant flow during continuous highway operation at full load — critical for trucks hauling 40+ tons across hot-climate corridors in Africa, Southeast Asia, and the Middle East.
• Construction and Mining Vehicles: Handles extreme dust, vibration, and thermal loads encountered in off-road dump trucks and loaders equipped with YuChai powertrains.
• Municipal and Utility Vehicles: Provides reliable cooling for city buses, sanitation trucks, and utility vehicles that face constant stop-and-go thermal cycling.
• Stationary Power and Generator Sets: Ensures thermal stability in YuChai 6QAJ-powered gensets running 24/7 in industrial and telecom backup applications.

Whether your fleet operates in the scorching heat of sub-Saharan logistics routes or the stop-start grind of urban delivery, this water pump is built to protect your engine investment.

OEM/ODM Capabilities

METTLEAD Truck Parts understands that every market has unique requirements. Our manufacturing facility offers flexible OEM and ODM services tailored to your brand and regional needs:

• White-Label Packaging: Receive the Cooling Water Pump 6QAJ-1307010D in neutral packaging or under your own brand — ideal for distributors building their private-label parts catalog.
• Custom Packaging Solutions: We design packaging to meet your logistics specifications, including multi-language labeling, barcoding, and regional compliance markings.
• Strict Quality Control: Every unit undergoes multi-stage inspection — dimensional verification, seal pressure testing, and dynamic balance testing — before shipment.
• MOQ Flexibility: Whether you need a trial order of 10 pieces or a container-load of 2,000 units, our production line adapts to your procurement schedule.
• Factory Visits Welcome: We invite procurement teams to visit our facility, inspect production lines, and audit our QC processes firsthand.

Customer Case Study: Fleet Operator in West Africa

A fleet management company operating 120+ YuChai-powered trucks across Nigeria and Ghana was experiencing frequent cooling system failures with locally sourced water pumps. Seal leakage and bearing failure were causing unplanned downtime averaging 3 days per incident — translating to significant revenue loss on time-sensitive cargo routes.

After switching to the Cooling Water Pump 6QAJ-1307010D YuChai supplied by METTLEAD, the fleet reported:

• A 72% reduction in cooling system-related breakdowns over 12 months.
• Average pump service life exceeding 210,000 km — surpassing the previous supplier’s products by over 60%.
• Per-unit procurement cost reduced by 35% compared to their previous OEM channel, thanks to METTLEAD’s factory-direct pricing model.

The client now sources all YuChai engine cooling components — including thermostats, hoses, and radiator assemblies — exclusively through METTLEAD. Explore our full range of YuChai engine parts to see what else we can supply for your fleet.

Frequently Asked Questions — Cooling Water Pump 6QAJ-1307010D YuChai

Is this cooling water pump an original YuChai part or an aftermarket replacement?

This is an OEM-equivalent aftermarket part manufactured to match original YuChai specifications for part number 6QAJ-1307010D. It undergoes the same dimensional and performance testing as genuine parts — delivering identical fit, flow rate, and durability at a more competitive price point.

What is the expected service life of the Cooling Water Pump 6QAJ-1307010D?

Under normal operating conditions — proper coolant concentration, belt tension within spec, and regular maintenance intervals — this pump is designed to deliver at least 200,000 km of trouble-free service. Real-world fleet data from our customers consistently shows performance beyond this benchmark.

How can I verify that 6QAJ-1307010D is the correct part number for my engine?

Cross-reference the number stamped on your existing water pump housing or consult your YuChai 6QAJ engine maintenance manual. If you are uncertain, send us your engine nameplate photo or VIN and our technical team will confirm compatibility within 24 hours.

What causes premature failure in cooling water pumps, and how does this pump address those issues?

The three most common failure modes are seal leakage (caused by cavitation or contaminated coolant), bearing failure (from over-tensioned belts or lack of lubrication), and impeller erosion (from abrasive particles in the coolant). The 6QAJ-1307010D addresses all three with its silicon carbide seal, sealed dual-row bearings, and corrosion-resistant impeller alloy.

Can I order a sample before committing to a bulk purchase?

Absolutely. We encourage procurement managers to order 1–5 sample units for bench testing or trial installation before scaling up. Sample orders ship within 48 hours of payment confirmation.

Does this pump come with a warranty?

Yes. Every Cooling Water Pump 6QAJ-1307010D shipped by METTLEAD carries a quality warranty. If a manufacturing defect is identified within the warranty period, we provide replacement at no charge.

Ready to Secure Your Supply of Cooling Water Pump 6QAJ-1307010D YuChai?

Your engines depend on consistent cooling, and your business depends on reliable parts supply. Stop paying premium prices for inconsistent quality — partner with METTLEAD Truck Parts for factory-direct access to genuine-quality YuChai cooling system components.

Get your competitive quote today:

• Tell us your required quantity and delivery destination.
• Receive a detailed quotation within 12 hours.
• Enjoy flexible payment terms, fast production lead times, and door-to-door logistics support.

👉 Contact us now to request a quote — our team is standing by to support your procurement needs.

Browse our complete catalog of YuChai engine replacement parts for water pumps, oil pumps, fuel injection components, and more.