Vehicle Fitment
| Make | Chevrolet |
| Model | COPO |
| Year | 2019+ |
| Engine Size | 350 ci LSX with Magnuson TVS2650 Supercharger |
| Replaces OEM Part Number | Dayco 89413 |
Billet Racing Belt Tensioner - COPO Magnuson
This billet racing belt tensioner is specifically designed for COPO Camaro vehicles equipped with the Magnuson 2650 supercharger. Precision CNC-machined from 6061-T6 billet aluminum with our custom high-tension spring, hardened steel shaft, and heavy-duty bearings.
This tensioner is a direct bolt-on replacement for the factory tensioner used on Magnuson-supercharged COPO builds. With a 50 lb spring it provides significantly increased belt tension for better grip and reduced slip under extreme boost and high RPM conditions.
**Configuration Options:**
• 76mm 10 Rib Double Bearing Smooth Pulley + Steel Bearings (Default)
• 76mm 10 Rib Double Bearing Smooth Pulley + Ceramic Bearings
• Tensioner Only (No Pulley)
**Key Features:**
• CNC-machined 6061-T6 billet aluminum construction
• Custom wound high-tension spring
• Anodized finish for durability and reduced belt wear
• Proudly Made in the USA
Engineered for Speed, Built to Last.
| Make | Chevrolet |
| Model | COPO |
| Year | 2019+ |
| Engine Size | 350 ci LSX with Magnuson TVS2650 Supercharger |
| Replaces OEM Part Number | Dayco 89413 |