369-1255 3691255 Belt Tensioner for C4.4 C7.1 Engine 323 320GC 312E 314E 316E 318E Excavator

369-1255 Belt Tensioner for C4.4 C7.1 Engine

The 369-1255 / 3691255 Belt Tensioner is designed for selected construction machinery powered by C4.4 and C7.1 diesel engines, including 323, 320GC, 312E, 314E, 316E and 318E applications.

The belt tensioner is an important component of the engine accessory drive system. It helps maintain proper tension on the drive belt, supporting stable belt tracking and reliable operation of belt-driven engine accessories.

Manufactured with a robust metal housing and durable pulley assembly, this 3691255 engine belt tensioner is suitable for replacing a worn, noisy, damaged or malfunctioning tensioner in compatible heavy equipment.

Product Specifications

Key Features

• Stable Belt Tension – Helps maintain appropriate drive belt tension during engine operation.
• Reliable Pulley Operation – Designed to support smooth belt movement and consistent accessory drive performance.
• Heavy-Duty Construction – Robust metal body is suitable for demanding construction machinery environments.
• Durable Pulley Assembly – Built for reliable operation under vibration and continuous engine use.
• Direct Replacement Design – Suitable for replacing compatible belt tensioners using part number 369-1255.
• Easy Maintenance Replacement – Application-specific mounting design helps simplify installation during engine servicing.

Compatible Engine Models

C4.4
C7.1

Compatible Equipment Models

The 369-1255 belt tensioner is suitable for selected applications including:

323
320GC
312E
314E
316E
318E

Compatibility can vary according to the machine serial number, engine configuration and production year. Please confirm the original part number before ordering.

What Does an Engine Belt Tensioner Do?

The engine belt tensioner applies controlled tension to the accessory drive belt. Maintaining correct tension helps the belt remain properly engaged with the pulleys while the engine is running.

A worn or damaged tensioner may result in symptoms such as:

• Belt squealing or unusual noise
• Excessive belt vibration
• Loose or slipping drive belt
• Irregular pulley movement
• Visible tensioner or pulley wear
• Premature drive belt wear
• Reduced reliability of belt-driven accessories

If these symptoms occur, both the belt and tensioner assembly should be inspected to determine the cause.

Designed for Heavy-Duty Applications

The 3691255 belt tensioner is suitable for construction machinery working in demanding environments where engine components are regularly exposed to vibration, dust and extended operating hours.

Typical applications include:

Earthmoving · Excavation · Road Construction · Quarrying · Mining · General Construction

Why Choose JISION?

JISION supplies replacement parts for excavators, wheel loaders, diesel engines and other construction machinery.

Our product range includes:

Belt Tensioners · Pulleys · Fuel Injection Pumps · Turbochargers · Fuel Injectors · Water Pumps · Sensors · Solenoid Valves · Wiring Harnesses · ECU Controllers · Hydraulic Parts

We support machinery owners, repair workshops, distributors and construction equipment parts dealers with professional parts matching, competitive pricing, international shipping and B2B wholesale supply.

Confirm Compatibility Before Ordering

To make sure 369-1255 / 3691255 is the correct belt tensioner for your machine, please provide:

Part Number + Engine Model + Machine Model + Machine Serial Number + Photo of the Original Part

Our team can help compare the mounting position, pulley configuration and part number before shipment.

Request a Quote

Looking for a 369-1255 3691255 Belt Tensioner for C4.4 or C7.1 Engine?

Contact JISION today for current price, stock availability, delivery time and wholesale quotation.