2874377 Engine Drive Belt Idler Tensioner Pulley For ISZ13 QSZ13

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 2874377 is engineered for maximum durability and precise fitment in ISZ13 QSZ13 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: 2874377

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

Application:

ISZ13: Primarily used in heavy-duty tractors and trucks, with power ranging from 425 to 560 horsepower, meeting China IV/China V emission standards, and classified as vehicle power.

QSZ13: Mostly used in off-highway equipment, such as mining machinery, port cranes, large trenchless drilling rigs, and marine auxiliary power, emphasizing high torque and continuous load capacity, and is not a standard truck configuration.

Why Choose DDP Engine:
100% Quality Guaranteed: All parts undergo rigorous testing to ensure perfect compatibility and premium performance.
Fast Worldwide Shipping: Large inventory in stock. Orders are typically processed within 3-7 working days with reliable global express and Transportation.
Professional Technical Support: Unsure about the part number? Contact our engineering team for exact cross-reference matching.
Flexible Solutions: Providing Genuine, OEM, and premium Aftermarket spare parts to fit your budget.