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5409320 4090031 4096427 Excavator Engine Parts Cooling Water Pump For QST30

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5409320 4090031 4096427 Excavator Engine Parts Cooling Water Pump For QST30

Name: 5409320 4090031 4096427 Excavator Engine Parts Cooling Water Pump For QST30
Brand: Cum-mins
Price: 966 USD

Brand Name : Cum-mins

Model Number : QST30

Place of Origin : China

MOQ : 1

Price : $966 - $1148

Payment Terms : L/C,T/T,D/P,D/A

Supply Ability : 99

Delivery Time : 3-7 work days

Packaging Details : Wooden Box

Product Name : Engine Cooling Water Pump Assembly

Compatible Engine : QST30 / 12V140 Diesel Engine

OEM Part Numbers : 5409320, 4090031, 4096427

Cylinder Configuration : 3-cylinder (inline)

Drive Type : Gear-driven (top-mounted drive gear, matching engine camshaft drive)

Rated Flow & Speed : ~400-500 L/min (at rated engine speed) & 2000–2200 rpm

Seal Type : Mechanical seal (water-lubricated, high-temperature resistant)

Packing : Wooden Box

Payment : TT.Money Gram.Western Union. Paypal

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Excavator Engine Parts Cooling Water Pump 5409320 4090031 4096427 for QST30

Prevent catastrophic engine overheating and extend the service life of your powered heavy equipment with this premium 12V140 heavy-duty cooling water pump, engineered as a direct OEM replacement for part numbers 5409320, 4090031 and 4096427. Designed specifically for the high-horsepower QST30 diesel engine, this pump delivers consistent high-volume coolant flow to maintain optimal operating temperatures even under continuous full-load conditions. Built to withstand the extreme heat, vibration and dust of construction and mining sites, it features a reinforced housing and precision-balanced impeller for maximum durability and efficiency. Every unit undergoes comprehensive pressure and leakage testing before shipment to ensure reliable, leak-free performance.

Core Selling Points

✅ Exact OEM Fit for QST30

Precision-machined to match the exact mounting points, pulley configuration and coolant connections of the original water pump. No modifications are required, enabling straightforward bolt-on installation and minimizing equipment downtime.

✅ High-Volume Efficient Cooling Design

Features a precision-cast impeller optimized for maximum coolant flow and pressure. It delivers 20% higher flow rate than standard aftermarket pumps, ensuring efficient heat dissipation and preventing engine overheating during heavy operation.

✅ Industrial-Grade Durability

Constructed with a heavy-duty cast iron housing, stainless steel shaft and high-temperature mechanical seal. This design resists corrosion, cavitation and wear, providing 2-3 times longer service life than economy-grade alternatives.

✅ Rigorous Quality Assurance

Each pump undergoes hydrostatic pressure testing, rotational balance testing and leakage testing. It is ISO 9001:2015 certified and backed by a 6-month comprehensive manufacturer warranty for complete peace of mind.

Parameter	Specification
Product Name	Engine Cooling Water Pump Assembly
OEM Part Numbers	5409320, 4090031, 4096427
Compatible Engine	QST30 / 12V140 Diesel Engine
Application	Heavy-duty excavators, mining trucks, industrial equipment with QST30 engines
Drive Type	Gear-driven (top-mounted drive gear, matching engine camshaft drive)
Gear Teeth	24 teeth (standard for QST30 engine)
Rated Flow	~400-500 L/min (at rated engine speed)
Rated Speed	2000–2200 rpm
Operating Pressure	0.15–0.25 MPa
Seal Type	Mechanical seal (water-lubricated, high-temperature resistant)
Bearing Type	Heavy-duty double-row ball bearings
Housing Material	Cast iron (corrosion-resistant, high-pressure resistant)
Shaft Material	High-strength alloy steel
Mounting Type	Direct bolt-on fit (matches OEM mounting holes and flange)
Coolant Compatibility	Compatible with ethylene glycol-based antifreeze (coolant)
Certifications	RoHS, CE Compliant
Condition	New aftermarket replacement, pressure-tested
Key Features	High flow rate, durable mechanical seal, heavy-duty gear drive, corrosion-resistant housing, direct replacement

5409320 4090031 4096427 Excavator Engine Parts Cooling Water Pump For QST30

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