Dayco 89554 Accessory Drive Belt Idler Pulley - Supercharger (Lower)

Dayco 89554 Accessory Drive Belt Idler Pulley

The Dayco 89554 accessory drive belt idler pulley is a steel serpentine pulley built for supercharger lower drive applications. It is listed for select Cadillac CTS and Chevrolet Camaro models, with fitment covering 2009-2015 Cadillac CTS Supercharger (Lower) and 2012-2015 Chevrolet Camaro Supercharger (Lower).

Key Features

• Steel pulley construction for accessory drive belt service
• Serpentine belt type application
• Flat pulley design
• One bearing design
• Bearing inner diameter: 10.5 mm
• Bearing width: 29.6 mm
• Maximum belt width: 8 rib

Detailed Description

Dayco 89554 is an accessory drive belt idler pulley engineered for supercharger lower positions in select performance applications. The steel body and single-bearing design support serpentine belt routing where consistent belt tracking and pulley alignment are critical. For buyers searching for a Dayco 89554 idler pulley for Cadillac CTS supercharger lower or a Dayco 89554 pulley for Chevrolet Camaro supercharger lower, this part matches the listed vehicle applications and belt specifications.

Compatible With 2009-2015 Cadillac CTS, Supercharger (Lower), and 2012-2015 Chevrolet Camaro, Supercharger (Lower). This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Is Used For

• Replacing a worn or noisy supercharger drive idler pulley
• Restoring proper serpentine belt routing in the lower supercharger drive
• Addressing belt squeal caused by pulley wear or bearing roughness
• Correcting belt tracking issues related to pulley surface wear
• Supporting consistent accessory drive operation in listed CTS and Camaro applications

Installation Notes and Tips

Verify the pulley position before ordering, since this part is listed for the supercharger lower location only. Confirm belt width, bearing dimensions, and rib count against the existing component during service. Inspect the belt, adjacent pulleys, and tensioner at the same time to avoid repeat labor on the accessory drive belt system.

Quality Assurance

Dayco is a recognized name in belt drive components, and this pulley is built to match the listed fitment and dimensional requirements for the specified applications. Part number 89554 should be matched to the vehicle year, model, and supercharger lower position before installation.