3095684 Engine Drive Belt Idler Tensioner Pulley For NTA855 N14

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 3095684 is engineered for maximum durability and precise fitment in NTA855 N14 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: 3095684

Condition: Brand New / High-Quality OEM / Aftermarket
Warranty: 6 Months / 1 Year
Engine Model: NTA855 N14

Application:

NTA855: A mainstay model from the 1970s to the 1990s, featuring mechanical direct injection, turbocharging, and no electronic control. Commonly used in construction machinery (such as the SD22/TY160 bulldozer), mining trucks, marine main propulsion (NTA855-M series), stationary generators (NTA855-G series, 250–300kW), and early heavy trucks; power range approximately 250–545 hp (186–407 kW), with emission standards typically ranging from China 0 to China II.

N14 (including N14-C series, such as C280/C350/C400, etc.): An upgraded platform from the 1980s to 2000s, employing an "electronically controlled unit pump" (A2C/A3C fuel system), and featuring more advanced cooling and structural design. Widely used in heavy-duty highway tractors, port tractors, large buses, medium and large generator sets (N14-C400 approximately 400kW), railway auxiliary power, and marine auxiliary power; power ranges from 300–525 hp (224–391 kW), with some later models meeting China III emission standards. 

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