BMW Adjusting Pulley Assembly INA 11281720039

The BMW Adjusting Pulley Assembly by INA (manufacturer part number 5310004100) delivers OE supplier quality and performance for select BMW V12 models. Engineered as a direct replacement for BMW OE part number 11281720039, this assembly ensures reliable belt tension and smooth operation of critical engine accessories.

Key Features:

• Genuine INA component for premium reliability
• Designed for precise fit and operation with BMW models listed below
• OEM quality—meets or exceeds factory standards

Verified Fitment:

• BMW 750iL (E32, Sedan, 5.0L V12, 1988-1994): For Alternator/Power Steering Pump belt and A/C Compressor/Water Pump belt (quantity varies by application)
• BMW 750iL (E38, Sedan, 5.4L V12, 1995-1999): For A/C Compressor/Water Pump belt (see fitment notes for model years)
• BMW 850i & 850Ci (E31, Coupe, 5.0L/5.4L V12, 1991-1997): For Alternator/Power Steering Pump belt and/or A/C Compressor/Water Pump belt (application specific)
• BMW 850CSi (E31, Coupe, 5.6L V12, 1995): For Alternator/Power Steering Pump belt and A/C Compressor/Water Pump belt

For exact fitment, consult the vehicle's year, model, submodel, engine, body, and chassis as listed above. Choose INA 5310004100 for trusted OE supplier performance on your classic BMW V12.