4004933 3161562 3102888 Engine V-ribbed Belt Tensioner Pulley For QSM11 ISM11 ISMe

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 4004933 3161562 3102888 is engineered for maximum durability and precise fitment in QSM11 ISM11 ISMe Engine. 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: 4004933 3161562 3102888  

Condition: Brand New / High-Quality OEM / Aftermarket
Warranty: 6 Months / 1 Year
Engine Model: QSM11 ISM11 ISMe

Application:

QSM11: Flagship off-highway engine, 290–420 hp, specifically designed for construction machinery (such as rotary drilling rigs, mining trucks, port cranes, wheel loaders), generator sets, oilfield and rail equipment. It emphasizes high torque, durability, and fully electronic control (off-highway ECU), and is mostly matched to China V/Euro V emission standards.

ISM11: Mainstay for heavy-duty highway trucks, 308–450 hp (such as ISM11E4 China IV, ISM11E5 China V). Used in tractors, cargo trucks, dump trucks, and special-purpose vehicles. It adopts a high-voltage common rail electronic control system and is compatible with China IV/China V emission standards (new vehicles are no longer sold domestically; they are only for export or non-registration purposes).

ISMe (e.g., ISMe385): An early Euro III/China III version of the ISM series (the "e" suffix often indicates Euro III), with a power output of approximately 308–420 horsepower. It was used in heavy trucks and buses around 2010–2015, but is now largely phased out due to emission restrictions and is only found in second-hand or off-road machinery transitional equipment.

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.