WnSEu R4 AC Compressor Bracket LS High-Mount Kit for 1999–2013 Vortec Engines with Integrated Belt Tensioner

The WnSEu R4 AC Compressor Bracket is a precision-machined aluminum high-mount kit that relocates and secures an R4-style A/C compressor on LS-series Vortec engines while adding an integrated belt tensioner for correct accessory drive alignment.

This high-mount A/C bracket kit is designed for Chevrolet and GMC trucks or SUVs with Vortec LS engines (1999–2013) and for compatible LSX and select Camaro applications. Built from CNC-cut aluminum alloy, the assembly positions an R4 compressor higher on the passenger side of the engine and provides the proper belt path when paired with the correct clutch diameter. It is a hardware-forward solution intended for retrofit or custom accessory drives where factory brackets do not accommodate an R4 compressor.

How does the kit fit my LS Vortec or LSX engine?

The bracket is engineered to bolt to the stock accessory mounting points common to 4.8L–6.2L Vortec blocks and many LSX-style layouts. It aligns the compressor with truck/SUV accessory pulleys and is compatible with crank pulleys used on truck/SUV Vortec drives and some Camaro LS3/L99 setups.

• Compatible with 1999–2013 Chevy/GMC truck and SUV Vortec accessory drives.
• Works with 4.8, 5.3, 5.7, 6.0, 6.2 liter and LSX blocks when accessory mounts match.
• Designed for truck/SUV crank pulleys and select Camaro pulleys where accessory spacing matches.

What components are included and what will I still need?

The kit includes the machined aluminum bracket assembly and an integrated belt tensioner; standard hardware for mounting is typically supplied but verify contents at purchase. The compressor clutch and routing belt are not included, and proper clutch size is required for correct belt alignment.

• Includes CNC-machined aluminum bracket and belt tensioner.
• Does not include drive belt or compressor clutch.
• Requires a 4-inch compressor clutch — a 5-inch clutch is not compatible.

How difficult is installation and are instructions provided?

Installation requires moderate mechanical skill and access to common shop tools; because no printed instructions are supplied, professional installation or an experienced DIYer familiar with LS accessory drives is recommended. Proper torqueing and alignment are important to avoid belt wear and to ensure accessory longevity.

• No installation manual is provided with the kit.
• Recommended for professional installation or experienced mechanics.
• Ensure correct clutch diameter (4-inch) and check pulley alignment before final tightening.

What materials and build quality can I expect?

The bracket is manufactured from high-quality aluminum alloy using CNC precision machining to achieve consistent fitment and durable mounting surfaces. The finish resists corrosion and the design prioritizes rigidity to keep the compressor stable under load.

• CNC-machined aluminum alloy construction for strength and light weight.
• Precision holes and mating faces for repeatable fitment.
• Engineered to maintain accessory alignment under normal driving conditions.

Who this is for: The WnSEu R4 AC Compressor Bracket is aimed at truck and SUV owners, engine builders, and custom installers converting accessory drives to accept an R4 compressor on LS-series Vortec or compatible LSX engines. It suits customers who need a robust, high-mount solution and who can source the correct 4-inch clutch and drive belt, or who will use a professional shop to complete the installation. Avoid this kit if you require a plug-and-play package including belts or clutches, or if your accessory drive uses a 5-inch compressor clutch.