4316726 Engine Drive Belt Idler Tensioner Pulley For QSZ13-G10 Z13 ISZ13 QSZ

A belt tensioner is a device that applies a predetermined amount of tension to the engine's accessory drive belt (serpentine belt). Its primary function is to maintain constant, optimal tension on the belt as it wears and stretches over time. This prevents the belt from slipping, squealing, or throwing off, ensuring that critical components like the alternator, water pump, and A/C compressor operate reliably. This belt tensioner 4316726 is engineered for maximum durability and precise fitment in QSZ13-G10 Z13 ISZ13 QSZ engines. Manufactured to meet or exceed OEM standards, it ensures optimal engine performance and a long service life under heavy-duty conditions.

Whether for full engine rebuilds or quick replacements, DDP Engine provides you with the most reliable parts at unbeatable wholesale prices.

Parameter Details
Product Name: Belt Tensioner
Part Number: 4316726

Condition: Brand New / High-Quality OEM / Aftermarket
Warranty: 6 Months / 1 Year
Engine Model: QSZ13-G10 Z13 ISZ13 QSZ

Application:

ISZ13 (such as ISZ480, ISZ520, etc.): Primarily used in heavy-duty tractors, trucks, and other commercial vehicles on highways. Emissions are mostly China IV/China V standards, with a power output of 425–560 horsepower. It is a high-torque diesel engine for vehicles.

QSZ13-G10 (and QSZ13 series): Designed specifically for off-road applications, such as generator sets (commonly 410–460kW rated/standby power), construction machinery (cranes, pump trucks), and marine auxiliary machinery. It emphasizes steady-state power generation performance and continuous load capacity. Emission standards are mostly China III or off-road China III/China IV standards.

Why Choose DDP Engine:
100% Quality Guaranteed: All parts undergo rigorous testing to ensure perfect compatibility and premium performance.
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