Description

If you’re running a Magnuson supercharger on your GM Truck, belt tension is everything. The Magnuson HD Tensioner Upgrade is the solution for anyone experiencing belt slip under boost or pushing high-horsepower setups. This heavy-duty tensioner provides stronger, more consistent belt tension, helping you maintain reliable boost and top-tier performance under all conditions.

Whether you’re daily driving, street racing, or hitting the track, belt slip can rob you of power, reduce throttle response, and lead to premature belt wear. The HD Tensioner solves this by applying constant pressure to the belt, reducing slack and keeping your supercharger operating at peak efficiency. The result? More consistent boost, better acceleration, and increased long-term reliability.

This upgrade is essential if you’re running smaller pulleys or raising boost levels. It’s built to handle the extra load and heat that comes with modified supercharger setups. Magnuson engineered this tensioner to meet the demands of performance enthusiasts who expect more from their vehicle.

Installation is simple. The HD Tensioner is a direct bolt-on replacement for your existing unit—no modifications needed. It’s compatible with a wide range of Magnuson supercharger systems, making it a hassle-free upgrade with immediate results.

If you’re chasing horsepower or simply want your supercharger setup to run smoother and last longer, this is a must-have component. Built for serious power, trusted by tuners and racers alike.

Key Features:

• Reduces belt slip under load

• Maintains stable boost levels

• Ideal for high-boost and pulley upgrades

• Direct-fit—no modifications required

• Durable, performance-grade construction

• Compatible with multiple Magnuson kits

Don’t let belt tension be your weak link. Upgrade to the Magnuson HD Tensioner and keep your boost rock solid.

Compatible With:

• Chevy Silverado & GMC Sierra (2003–2007 Classic)

• Chevy Trailblazer SS (2006–2009)

• Chevy SSR

Fast Shipping: Just $19.50 via FedEx 2-Day.

Built for boost. Ready for anything.