3694434 5582944 5621364 3695924 محرك محرك الحزام العاطل المضغوطة المضغوطة لـ ISG12 X12

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 3694434 5582944 5621364 3695924 is engineered for maximum durability and precise fitment in ISG12 X12 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: 3694434 5582944 5621364 3695924

Condition: Brand New / High-Quality OEM / Aftermarket
Warranty: 6 Months / 1 Year
Engine Model: ISG12 X12

Application:

ISG12 (e.g., ISG12Ge5-350/380/400): Designed primarily for heavy-duty vehicles using National V emission standard natural gas (LNG/CNG) engines, commonly found in tractors, cargo trucks, engineering vehicles, and urban buses/logistics vehicles, with a power output of 350–400 horsepower. Some early National IV diesel versions were also used in heavy-duty trucks, but National V and lower diesel engines are no longer sold (they cannot be registered for National VI emission standard vehicles).

X12 (e.g., X12NNS6B360/440/460/510): Covering both diesel and natural gas (X12N) engines, with a power output of 360–510 horsepower, used for high-efficiency long-haul traction, heavy-duty transportation, dump trucks, mixer trucks, and refrigerated trucks, emphasizing intelligent control (ADEPT), lightweight design, and overall lifecycle economics.

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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.