LS Series Billet Aluminum 6 Groove Tensioner Pulley 2.75" Diameter 73mm CNC Machined Universal

Upgrade your LS accessory drive system with this precision CNC-machined 6061 billet aluminum 6-groove tensioner pulley, engineered to fit most LS applications that use grooved tensioner pulleys. Significantly lighter than the factory steel unit, it is machined from premium 6061 billet aluminum with an anodized finish for lasting corrosion resistance in demanding engine bay conditions. A standard replaceable bearing is fitted as standard — allowing the bearing to be serviced independently without replacing the entire pulley assembly, keeping long-term maintenance costs low. At 73mm outside diameter and 23mm width, this pulley delivers accurate belt alignment and tension across the full LS engine family in swap, restomod, and performance build applications.

Features:

• Premium 6061 billet aluminum construction – lightweight, strong, and corrosion resistant for sustained high-performance engine bay use
• CNC machined to precise tolerances for accurate belt alignment and secure, rattle-free installation on the tensioner boss
• Hard anodized surface finish for full rust and corrosion resistance in all weather and operating conditions
• 6-groove profile – compatible with most LS accessory drive belt configurations using grooved tensioner pulleys
• Standard replaceable bearing – can be serviced independently without replacing the full pulley assembly

Specifications:

• Condition: 100% Brand New
• Type: LS Tensioner Pulley
• Material: 6061 Billet Aluminum & Bearing Steel
• Surface Finish: Anodized
• Processing: CNC Machined
• Groove Count: 6
• Outside Diameter: 73mm (2.75")
• Width: 23mm
• Bearing: Standard – replaceable
• Item Weight: 0.27 kg

Fitment:

• Compatible with most LS engine applications that use grooved tensioner pulleys
• Suitable for LS engine swaps, restomod builds, and performance applications across LS1 · LS2 · LS3 · LS6 · LS7 and related LS family engines
• Some LS truck factory belt tensioners may not be compatible – see installation notes below

Contents:

• 1x Billet Aluminum 6-Groove LS Tensioner Pulley

Benefits:

• Billet aluminum construction reduces rotating mass compared to factory steel tensioner pulleys – contributing to improved accessory drive efficiency
• Replaceable standard bearing keeps long-term maintenance costs lower than non-serviceable factory alternatives
• Anodized finish resists heat, oil, and corrosion across extended engine bay use
• CNC precision ensures correct belt tracking and alignment across supported LS applications
• Clean billet appearance complements engine bay detailing on show, restomod, and performance builds

Installation Notes:

• Compatible with most LS applications using grooved tensioner pulleys – verify groove count and outside diameter against your existing pulley before ordering
• Due to the snap ring design, some LS truck factory belt tensioners may require minor grinding of the tensioner boss for correct fitment
• This pulley will not fit certain LS truck factory belt tensioner configurations – if unsure, contact our team with your vehicle details or the part number of your tensioner before ordering
• Bearing is standard and replaceable – service independently as needed without full pulley replacement

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues