1145A046 Genuine Mitsubishi Belt

The oil pump belt (balancer timing belt) is an engine component in some cars, also known as the balancer shaft timing belt.

Oil pump belt specifications:

Country of Origin: Japan

Product Brand: Mitsubishi

Product number: 1145A046

Compatible Models: Mitsubishi Galant (2001-2013)

Mitsubishi Grandis

Mitsubishi Space Wagon

🧩 Main function:

The balancer belt is responsible for transmitting motion to the balancer shafts , which rotate in the opposite direction to the crankshaft to reduce vibrations caused by engine rotation, especially in four-cylinder engines that naturally suffer from some imbalance.

🔧 Its location in the engine:

• It is usually located on the front of the engine , next to the main timing belt.
• Connects the crankshaft and balance shafts.

⚙️ Its features:

• Similar to a regular timing belt but usually smaller in size.
• It works in precise synchronization with the rest of the engine to reduce vibration and improve smoothness.

🔁 When will it be changed?

• It is often changed along with the main timing belt , i.e. between 80,000 and 100,000 km (according to the manufacturer's recommendations).
• Neglecting to change it may result in belt failure, annoying vibrations, or internal engine damage.

🚗 Cars that contain it:

• Not all cars have this belt.
• It is found in some Mitsubishi, Honda, Hyundai, some Toyota, and Mazda engines , especially engines designed to improve balance without using dual crankshafts.

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