3936210 3973827 3914854 3934822 5333480 3973822 3934817 SP120022 Engine V-ribbed Belt Tensioner Pulley For 6CT 6CT8.3 ISLe

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 3936210 3973827 3914854 3934822 5333480 3973822 3934817 SP120022 is engineered for maximum durability and precise fitment in 6CT 6CT8.3 6BT 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:  3936210 3973827 3914854 3934822 5333480 3973822 3934817 SP120022

Condition: Brand New / High-Quality OEM / Aftermarket
Warranty: 6 Months / 1 Year
Engine Model: 6CT 6CT8.3 6BT

Application:

6CT (including variants such as 6CTA/6CTAA): Widely used in heavy-duty trucks, medium-duty trucks, heavy-duty pickups, construction machinery (power approximately 198–220 kW / 270–300 hp), marine auxiliary machinery (6CT8.3-GM series, 50–155 kW), and special vehicles (fire trucks, engineering vehicles).

ISC8.3 (Interact Series 8.3): Primarily used in heavy-duty trucks, commonly found in 230–292 hp models meeting China IV emission standards (e.g., ISC8.3-245E40A, -270E40A, -292E40A), suitable for 9–12 meter cargo trucks and tractors, often paired with a Fast 9-speed transmission.

QSC8.3 (Quik-Start/Commercial Series 8.3): Designed for fixed or mobile off-highway equipment such as construction machinery, ships, generator sets, fire trucks, and forklifts, it emphasizes high torque and low speed performance and is commonly found in excavators, cranes, generators, etc., and is not a mainstream truck power source. 

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.