VAICO Deflection Pulley V-Ribbed Belt BMW

The VAICO deflection pulley (also called an idler pulley or belt guide pulley) guides and routes the V-ribbed serpentine belt on BMW engines. It keeps the belt on the correct path and maintains proper belt wrap around the driven accessories. Those accessories include the alternator, water pump, power steering pump and A/C compressor.

Key Features:

• Made as an OE-quality replacement for the original deflection pulley
• Smooth-running bearing for quiet operation and a long service life
• Durable pulley body built to hold up to heat, load and constant rotation
• Precision-machined belt surface for correct V-rib tracking and less belt wear
• Helps prevent belt slip, squealing and vibration

A worn deflection pulley can cause bearing noise, belt wobble, premature belt wear or accessory drive failure. Replacing it when you replace the belt or tensioner helps restore a quiet, reliable accessory drive. VAICO is a brand of the Germany-based Vaico group. It supplies replacement parts developed to meet or exceed original equipment requirements. Choose the correct variant for your application from the options on this page.