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Rotrex LS Supercharger Kits: Unmatched Performance for LS Engines

Rotrex proudly presents a new LS Supercharger Kit, offering a completely unique combination of performance, predictable power delivery and everyday-use reliability.
Our unique Supercharger technology and OEM-DNA, results in a reliable performance package suitable both for extreme track- and everyday use. No compromises!

The Rotrex LS Truck Supercharger Kit is the ultimate forced induction solution for 1999–2014 GM trucks equipped with 4.8L, 5.3L, 6.0L or 6.2L LS-style engines. Whether you’re building a street sleeper or a daily-driven powerhouse, this system delivers unmatched efficiency, drivability, and power capability — all in a compact, OEM-like package.

Designed as a bolt-on, DIY-friendly kit, it installs using factory mounting points, so NO rework / modifications needed on the block. Simple and easy to follow mounting instructions are included.

Choose Your Power — Without Complicating Your Setup

Power output is easily tailored by selecting different supercharger pulley sizes. Thanks to a smart, configurable idler and tensioner position system, pulley swaps are quick and do not require a different belt or additional idlers. Just follow the belt routing guide in the included installation manual — one belt fits all setups.

This flexibility makes your build simple, whether you’re aiming for modest boost or need the full power capabilities of the kit.

OEM Refinement, ULTIMATE Performance!

Powerful, reliable and drivable performance for everyday use with our LS supercharger kit

• +25 years of supplying automotive superchargers
• The only OEM supplier of centrifugal superchargers for production vehicles
• Highest impeller speeds on the supercharger markets — Up to 90,000 rpm
• Most compact superchargers on the market
• Most efficient superchargers on the market — Up to 98%
• Fully automized in-house manufacturing (CNC), ensuring the highest quality standards
• Technical support from passionate engineers

Technical details

• Rotrex C38R-122 Supercharger
• +1900 CFM , 26 PSI boost (max)
• +1200 HP
• Internal gear-ratio: 1:6
• Impeller speed: up to 90.000 rpm
• Ø85mm billet impeller wheel
• Billet, OEM-fitment, bracket design in high-grade aluminum with anodized surface finish (Black or nature).
• Durable 10-rib belt drive, including a dynamic belt tensioner and double-bearing idlers.
• Configurable idler-pulley position for easy supercharger pulley size change.
• Separate, dry-sump lubrication system with low maintenance requirements (50.000 miles).
• Durability: Superchargers are tested according to SAE standards to +160.000 Miles, complying with strict OEM requirements.
• Easy installation—fits onto factory mounting points
• Easy re-positioning of the compressor housing​

Fits the following models

Fitment Note: Vehicles equipped with pitman arm steering may require modification for clearance.

Vortec 4800 (Gen IV LY2, L20)

LY2 (2007–2009):

• Chevrolet Express
• Chevrolet Silverado 1500
• Chevrolet Tahoe
• GMC Savana
• GMC Sierra 1500
• GMC Yukon

L20 (2010–2014):

• Chevrolet Express
• Chevrolet Silverado 1500
• GMC Savana
• GMC Sierra 1500

Vortec 5300 (Gen III LM7, L59, LM4)

LM7 (1999–2007):

• Cadillac Escalade (2WD)
• Chevrolet Avalanche
• Chevrolet Express
• Chevrolet Silverado 1500
• Chevrolet Suburban 1500
• Chevrolet Tahoe
• GMC Savana
• GMC Sierra 1500
• GMC Yukon / Yukon XL

L59 (2002–2007):

• Chevrolet Avalanche 1500
• Chevrolet Silverado 1500
• Chevrolet Suburban 1500
• Chevrolet Tahoe
• GMC Sierra 1500
• GMC Yukon / Yukon XL

LM4 (2003–2005):

• Buick Rainier
• Chevrolet SSR
• Chevrolet TrailBlazer EXT
• GMC Envoy XL / Envoy XUV
• Isuzu Ascender

Vortec 5300 (Gen IV LMG, LC9, LY5, L96)

LY5 (2007–2009):

• Chevrolet Avalanche
• Chevrolet Silverado 1500
• Chevrolet Suburban 1500
• Chevrolet Tahoe
• GMC Sierra 1500
• GMC Yukon / Yukon XL 1500

LC9 (2007–2013):

• Chevrolet Avalanche
• Chevrolet Silverado 1500
• Chevrolet Suburban 1500
• GMC Sierra 1500
• GMC Yukon XL 1500

LMG (2007–2014):

• Chevrolet Avalanche
• Chevrolet Silverado 1500
• Chevrolet Suburban 1500
• Chevrolet Tahoe
• GMC Sierra 1500
• GMC Yukon / Yukon XL 1500

L96:

• Chevrolet Express
• GMC Savana

Vortec 6000 (Gen III LQ4, LQ9)

LQ4 (1999–2007):

• Chevrolet Express
• Chevrolet Silverado 1500 HD/2500/2500 HD/3500
• Chevrolet Suburban 2500
• GMC Savana
• GMC Sierra 1500 HD/2500/2500 HD/3500
• GMC Sierra Denali
• GMC Yukon Denali / Yukon XL 2500
• Hummer H2

LQ9 (2002–2007):

• Cadillac Escalade
• Cadillac Escalade EXT/ESV
• Chevrolet Silverado SS
• GMC Sierra Denali
• Chevrolet Silverado/GMC Sierra 

Vortec 6200 (Gen IV L92, L9H, L94)

L92 (2007–2009):

• Cadillac Escalade 2WD / AWD
• GMC Yukon Denali/Yukon XL Denali
• GMC Sierra Denali
• Chevrolet Tahoe LTZ
• Hummer H2

L9H (2009–2013):

• Cadillac Escalade
• Chevrolet Silverado 1500
• Chevrolet Tahoe LTZ
• GMC Yukon Denali/Yukon XL
• GMC Sierra 1500

L94 (2010–2014):

• Cadillac Escalade/Escalade ESV
• GMC Yukon Denali/Yukon XL Denali

Supercharger:

• 1pcs C38R-122

Brackets:

• 1pcs Front Bracket
• 1pcs Cross Brace 1
• 1pcs Cross Brace 2
• 1pcs Cross Brace 3
• 1pcs Cylinder Head Mount
• 1pcs Spacer AC Damper
• 1pcs Tensioner Spacer

Idlers and Pulleys:

• 1pcs Idler Ø75 10PK – Ribbed
• 1pcs Idler Ø75 10PK – Smooth
• 1pcs Tensioner with Ø75 10PK – Smooth idler
• 1pcs Rotrex ATI Crank Pulley Ring

Other:

• 1pcs Gates 10PK1445HD Fleetrunner Belt
• 1L Rotrex SX150 Traction Fluid
• 1pcs Traction Fluid Canister and Brackets
• 1pcs Traction Fluid Filter
• 1pcs Traction Fluid Cooler, 16 row
• 3m Traction Fluid Hose and a Primer Bulb

Bolts & Nuts:

Bracket Assembly:

• 1pcs M8x25
• 3pcs M10x25
• 1pcsM10x25
• 1pcs M10x120

Idlers and Tensioners:

• 2pcs M10x55
• 1pcs M8x35
• 1pcs M10x60

Other:

• UNC 5/16-18×2½”: 3
• Slotted spring pins 5×12: 3

1. What is the LS Truck supercharger kit, and how does it work?
   This supercharger kit is a performance upgrade that increases the engine’s horsepower by forcing more air into the combustion chamber. Unlike turbochargers, supercharger kits are belt-driven, providing instant throttle response with no lag.
2. How does the Rotrex LS Truck supercharger kit compare to kits from other brands?
   Beyond the general advantages of our unique traction drive supercharger technology, this kit requires no modification to the engine bay and allows for a large range of power levels, through easy supercharger pulley swaps. The kit is designed to allow the same belt to be used regardless of which supercharger pulley you go for – so the only part you need to go from 600 to 1200HP is a pulley (supporting mods excluded).
3. Is this Rotrex supercharger kit reliable for daily driving?
   Yes! This supercharger kit is engineered to provide OEM-level reliability, making it a great option for both street and track vehicles. Proper installation and maintenance ensures long-term durability.
4. How difficult is it to install this supercharger kit?
   Installation difficulty is subjective, but this supercharger kit is designed as a direct bolt-on, and is within the capabilities of most home mechanics.
5. Do I need additional modifications to install this supercharger kit?
   This supercharger kit is a bolt-on kit, but it is necesarry to use the ATI Performance Damper, which is not included. Depending on your power target, it may be necessary to upgrade fuel injectors, valvetrain, cooling systems, drivetrain, amongst others. ECU tuning is always required.
6. How much horsepower can I gain from this supercharger kit?
   Horsepower gains vary depending on the supercharger pulley size, but you should expect to get between 40% to 170% more power, depending on boost levels (pulley size), and supporting modifications. Power capability can easily be changed by changing the pulley size on the supercharger jackshaft – we’ve designed the kit to use the same belt length for all available pulley sizes.
7.  Does this supercharger kit require regular maintenance?
   Yes, but very limited. The Rotrex supercharger uses a stand-alone lubrication system that requires periodic oil changes to maintain peak performance and longevity. The oil change interval is 2 years or 50.000 miles (80.000 km), whichever comes first.
8. Does this kit come with tuning?
   No, this kit is purely a supercharger bracket and drive kit.
9. Where can I buy this kit?
   The kit is available here.