ATI Aluminum Damper

2020–2026 Toyota GR Supra B58 Engine

Part #: ATI918573

Overview

The ATI 7.074-inch Aluminum Damper with 6 Groove Dry Sump is a precision-engineered crankshaft damper designed specifically for the 2020 and newer Toyota GR Supra equipped with the B58 engine. This high-performance damper is also compatible with the 2019 and newer BMW Z4 models powered by the same B58 powerplant. It is tailored for dry sump oiling systems and features a 6-groove design to accommodate accessory drive components.

Built for enthusiasts and professional tuners seeking enhanced engine reliability and smooth operation under demanding conditions, this damper reduces crankshaft vibrations and harmonics, helping to extend engine life and improve overall performance. Its lightweight aluminum construction contributes to reduced rotational mass, promoting quicker throttle response and improved engine efficiency.

Key Features

This ATI damper combines advanced engineering with durable materials to meet the rigorous demands of modern performance engines. Key features include:

• 7.074-inch diameter optimized for B58 engine balance and fitment
• Lightweight aluminum construction for reduced rotational inertia
• 6-groove pulley design compatible with dry sump accessory drives
• Specifically designed for 2020–2026 Toyota GR Supra and 2019+ BMW Z4 B58 engines
• Precision-machined for exact fit and reliable performance
• Improves crankshaft harmonic dampening to protect engine components
• Ideal for high-performance and track applications requiring dry sump oiling
• Corrosion-resistant finish for long-lasting durability

Construction & Design

The damper is crafted from high-grade aluminum alloy, chosen for its excellent strength-to-weight ratio and thermal properties. ATI’s manufacturing process ensures tight tolerances and balanced weight distribution, critical for maintaining engine smoothness at high RPMs. The 6-groove design accommodates dry sump accessory belts, ensuring compatibility with factory and aftermarket setups without compromising belt alignment or tension.

Its 7.074-inch diameter is engineered to match the B58 engine’s harmonic profile, providing effective vibration reduction while minimizing added weight. The aluminum body also aids in dissipating heat generated during operation, contributing to consistent performance under strenuous conditions.

Installation & Fitment

This damper is a direct fit replacement for the crankshaft pulley on 2020 through 2026 Toyota GR Supra models equipped with the B58 engine. Installation requires standard tools and mechanical knowledge, with no modifications necessary to the engine or accessory drive system when used in dry sump configurations. It is recommended to have the damper installed by a professional technician to ensure proper torque specifications and alignment.

What's Included

• ATI 7.074-inch Aluminum Damper with 6 Groove Dry Sump
• Installation hardware (if applicable)
• Product documentation and installation guidelines

Ideal For

This damper is ideal for Toyota GR Supra owners and BMW Z4 enthusiasts who demand enhanced engine durability and performance, especially those running dry sump oiling systems. It suits track day participants, performance tuners, and anyone upgrading their engine components for improved reliability and throttle response.

ATI Performance Products is a racing-proven drivetrain specialist known for Super Damper® harmonic balancers and a broad range of drag and street-performance transmission components. From dampers designed to control harmful crank harmonics to flexplates, torque converters, and automatic transmission solutions, ATI parts are built for strength, precision, and repeatable performance.