GARRETT GT2860RS Turbocharger – 836026-5013S (The “Disco Potato”)

Unlock the legendary performance of the Garrett GT2860RS, widely known in the tuning community as the “Disco Potato.” This genuine Garrett dual ball-bearing turbocharger is the gold standard for small-displacement engines seeking a perfect balance of rapid boost response and high-end power.

The 836026-5013S model features the larger 0.86 A/R turbine housing, making it the ideal choice for enthusiasts looking to maximise top-end flow and horsepower without sacrificing the signature spool-up speed of the GT28 series.

Key Performance Specifications:

• Horsepower Rating: 250 – 360 HP
• Recommended Engine Displacement: 1.8L – 3.0L
• Part Number: 836026-5013S (Supercedes 739548-5001S)
• Bearing Type: Dual Ceramic Ball Bearing for reduced friction and maximum durability.
• Cooling System: Oil & Water Cooled CHRA.

Technical Data:

• Compressor: 60mm Exducer / 47mm Inducer with a 0.60 A/R housing.
• Turbine: 54mm Wheel Diameter / 76 Trim / 0.86 A/R.
• Turbine Inlet: Standard T25 4-Bolt Flange.
• Turbine Outlet: 5-Bolt Wastegated Flange.
• Internal Wastegate: Includes adjustable actuator for “plug-and-play” boost control.

Why Choose the GT2860RS 0.86 A/R?

Unlike the smaller 0.64 A/R version, the 836026-5013S is designed for engines that spend more time at high RPMs. The 0.86 A/R housing reduces backpressure, allowing your engine to breathe better at the top of the rev range, making it perfect for track days, drifting, and high-performance street builds.

Features & Benefits:

• Instant Response: The water-cooled, dual ball-bearing center housing rotating assembly (CHRA) ensures the turbo spools significantly faster than traditional journal-bearing units.
• Proven Reliability: Built by Garrett Motion, this unit features original GT series aerodynamics and high-quality cast compressor wheels for long-term longevity.
• Compact Footprint: Its small frame makes it a popular choice for transverse engine layouts and tight engine bays (SR20DET, 1.8T, B16/B18, and K-Series builds).

What’s Included?

This is a complete assembly, including the turbine housing and internal wastegate actuator.

Building on 70 years of aerospace-derived expertise and a legacy of technological leadership, Garrett Motion’s performance range is engineered for enthusiasts and professional racers who demand elite-level results. From winning 26 consecutive titles at the 24 Hours of Le Mans to powering world-class Formula 1 and rally teams, Garrett’s performance products—including the cutting-edge G-Series, G-XRace, and GTX lineups—deliver reliable power and consistent airflow. Every component is designed to bridge the gap between track-proven durability and street-driven innovation, ensuring your build benefits from the same high-speed technology that has shaped the global automotive industry.