Original Porsche Part Genuine Porsche part 958903133A

Drive Belt & Pulley Kit 

Maintain the reliability and efficiency of your Porsche Macan's auxiliary drive system with this comprehensive OE Match Drive Belt & Pulley Kit. Manufactured to match original factory specifications, this complete service kit contains all the major wear components required to restore smooth and reliable operation of the auxiliary belt drive system.

Fits:

• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18 

Rather than replacing individual components as they fail, this kit allows you to renew the complete belt drive assembly in one service, helping to reduce the risk of future failures, eliminate unwanted belt noise and protect critical engine accessories.

Ideal for routine maintenance, preventative servicing or repairs, this OE Match kit provides factory-style fit, performance and long-term reliability.

Kit Contents

This complete OE Match kit includes:

• 1 × Auxiliary drive belt
• 1 × Belt tensioner damper with pulley assembly
• 2 × Idler pulleys
• 1 × Alternator overrunning pulley

All components are manufactured to closely replicate the original equipment design for straightforward installation and dependable performance.

What Does the Drive Belt & Pulley System Do?

The auxiliary drive belt system transfers engine power to several essential engine accessories.

These components work together to:

• Drive the alternator to maintain battery charging.
• Power engine accessories through the auxiliary belt system.
• Maintain correct belt tension throughout the engine's operating range.
• Reduce belt vibration and unwanted noise.
• Ensure smooth and efficient rotation of driven components.
• Improve overall reliability of the engine's front-end accessory drive.

A properly functioning belt drive system is essential for dependable charging performance and reliable day-to-day operation.

Why Do Drive Belt Components Fail?

The auxiliary belt system is subjected to continuous rotation, engine heat and varying loads every time the engine is running.

Common causes of wear include:

• Natural ageing of the drive belt.
• Bearing wear within idler pulleys.
• Fatigue of the tensioner damper.
• Seized or worn alternator overrunning pulley.
• Belt glazing, cracking or stretching.
• Dirt and moisture contamination.
• High mileage and repeated heat cycles.

As one component begins to wear, additional strain is placed on the remaining pulleys and belt, often accelerating further failures.

When Should the Kit Be Replaced?

Replacement is recommended when:

• The auxiliary belt shows signs of cracking or wear.
• Squealing or chirping noises develop from the front of the engine.
• Idler pulleys become noisy or rough.
• The belt tensioner exhibits excessive movement or vibration.
• The alternator pulley begins to seize or freewheel incorrectly.
• Carrying out major engine servicing.
• Preventative maintenance on higher mileage vehicles.

Replacing all wear components together helps restore smooth operation while reducing future labour costs and minimising the risk of roadside breakdowns.