Product Introduction

• Structure: A robust centrifugal pump with a blue-painted 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. The pulley is secured with four high-strength bolts for reliability.

• 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.

Engine Water Pump 6QAJ-1007010 YuChai – OEM-Grade Cooling Performance for Heavy-Duty Applications

Your engine’s longevity lives and dies by its cooling system. The Engine Water Pump 6QAJ-1007010 YuChai circulates coolant with relentless precision, preventing thermal stress before it ever becomes a problem. Engineered to meet YuChai OEM specifications, this water pump delivers consistent flow rates across demanding operating conditions — keeping your fleet on the road and your maintenance costs under control.

METTLEAD Truck Parts supplies this genuine-quality YuChai engine water pump at factory-direct pricing, backed by strict quality control protocols and ready-to-ship inventory for buyers who cannot afford downtime.

Why This YuChai Water Pump Outperforms Aftermarket Alternatives

• Precision-Engineered Impeller: The cast impeller maintains optimal coolant velocity across the entire engine block, eliminating hot spots that degrade cylinder liners and head gaskets prematurely.
• Heavy-Duty Mechanical Seal: A silicon carbide seal face resists coolant corrosion and thermal cycling, delivering 3x the service life of standard rubber seals in high-temperature environments.
• OEM-Matched Bearing Assembly: Pre-loaded double-row bearings absorb radial and axial loads from belt tension without play, reducing vibration-induced wear on adjacent timing components.
• Direct Bolt-On Fitment: Mounting dimensions, port orientation, and pulley alignment match OEM blueprint 6QAJ-1007010 exactly — zero modifications, zero adapter plates, zero guesswork.
• Corrosion-Resistant Housing: The aluminum alloy body withstands aggressive coolant chemistries (including OAT and hybrid formulations) without pitting or electrolysis damage.

Technical Specifications – Engine Water Pump 6QAJ-1007010

Application Scenarios – Where This Water Pump Works Hardest

The Engine Water Pump 6QAJ-1007010 is purpose-built for YuChai YC6A and YC6J series diesel engines — powertrains that serve as the beating heart of medium- and heavy-duty commercial vehicles across Southeast Asia, Africa, the Middle East, and South America.

You will find this pump performing under load in:

• DONGFENG heavy-duty trucks equipped with YuChai diesel power
• FOTON commercial logistics vehicles running YC6J configurations
• King Long, Yutong, and Higer buses relying on YuChai engines for long-haul passenger routes
• Construction and mining equipment powered by YC6A engines operating in extreme ambient temperatures

In every scenario, the water pump’s job stays the same: move coolant fast enough to pull heat away from combustion zones before thermal damage begins. At rated engine speed, this pump circulates over 250 liters of coolant per minute through the block and radiator circuit — keeping cylinder temperatures within the narrow window where efficiency peaks and wear slows down.

OEM/ODM Capability – Your Brand, Our Manufacturing Precision

METTLEAD supports bulk procurement with flexible customization options designed for distributors and fleet operators who need consistency at scale:

• White-Label Packaging: Your brand identity on every box. We provide custom-printed packaging with your logo, part numbers, and barcodes — ready for your warehouse shelves.
• Custom Packaging Configurations: Individual retail boxes, multi-pack cartons, or palletized bulk — configured to your logistics workflow.
• Strict Quality Control: Every water pump undergoes pressure testing, seal integrity verification, and dimensional inspection before it leaves our facility. Defect rate held below 0.3%.
• Flexible MOQ: Whether you need 50 units for a trial order or 5,000 for a regional distribution rollout, we scale production without compromising lead times.

Customer Case Study – Engine Water Pump 6QAJ-1007010 YuChai in Action

A fleet management company operating 120+ DONGFENG trucks in Nigeria experienced repeated coolant loss and overheating failures during peak season. Their existing aftermarket water pumps were failing at 40,000 km intervals — half the expected service life.

After switching to METTLEAD’s Engine Water Pump 6QAJ-1007010 YuChai, the results spoke clearly:

• Zero premature pump failures across the first 12-month replacement cycle
• 22% reduction in coolant-related downtime compared to the prior year
• Average service life exceeded 95,000 km before scheduled replacement
• Unit cost savings of 35% versus their previous supply chain, thanks to METTLEAD’s factory-direct pricing

The procurement manager noted: “We stopped chasing leaks and overheating calls. The 6QAJ-1007010 pump from METTLEAD fits perfectly and simply lasts longer than anything else we’ve sourced for our YuChai-powered fleet.”

Frequently Asked Questions – Engine Water Pump 6QAJ-1007010 YuChai

What engines does the 6QAJ-1007010 water pump fit?

This water pump is designed specifically for YuChai YC6A and YC6J series diesel engines. It matches OEM dimensional standards and flow specifications for direct replacement without modification.

How long does the Engine Water Pump 6QAJ-1007010 typically last?

Under normal operating conditions with proper coolant maintenance, expect 80,000–120,000 km of reliable service. The silicon carbide mechanical seal and pre-loaded bearing assembly are the durability advantages that push lifespan beyond generic aftermarket pumps.

Can I use this YuChai water pump with extended-life coolant (OAT)?

Yes. The aluminum alloy housing and seal materials are fully compatible with OAT (Organic Acid Technology), hybrid, and conventional coolant formulations. No special adaptation needed.

What are the warning signs that my 6QAJ-1007010 water pump needs replacement?

Watch for coolant seepage near the weep hole, unusual bearing noise at idle, fluctuating engine temperature readings, or visible impeller erosion during scheduled inspections. Any of these signals mean the pump is approaching end-of-life.

Does this engine water pump come with a gasket and mounting hardware?

Yes. Each unit ships with the OEM-spec gasket and necessary mounting bolts for a complete, hassle-free installation.

What is the minimum order quantity for the Engine Water Pump 6QAJ-1007010?

METTLEAD accommodates orders from single-unit samples through bulk fleet orders. Contact our team for volume pricing and lead time details specific to your quantity.

Ready to Secure Reliable Cooling for Your YuChai Fleet?

Every hour of engine overheating costs more than the pump that prevents it. Lock in factory-direct pricing on the Engine Water Pump 6QAJ-1007010 YuChai and give your fleet the cooling reliability it deserves.

Contact METTLEAD now to request a quote
— our team responds within 12 hours with pricing, availability, and shipping options tailored to your region.

Browse our complete range of YuChai engine components — water pumps, oil pumps, turbochargers, and more — in our
YuChai Engine Parts catalog