Engines and Components Pistons and Piston Rings

JE Pistons

JE Pistons Audi TT RS 2.5 TFSI 5-Cyl Ultra Series 82.5mm Bore Piston Kit (Single)

$349.99

SKU: J001 367846S

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 367846S

Ultra Series forged pistons from JE are the industry s strongest, most fully featured pistons available off the shelf. Offered for a wide range of import and sport compact applications from 2JZ to 4G63 and Audi to BMW, Ultra Series pistons feature JE s proprietary Aligned Grain Flow forging technology providing next-level tensile strength ideal for the extreme cylinder pressures of power adder engine builds. Equipped with custom level features including thermal barrier crown coating, skirt coating, gas ports, and more, Ultra Series are the ideal pistons for your high-boost build. As with all JE Pistons products, Ultra Series pistons are made 100% in the USA.

Features:

    • Designed for Power: Every feature on Ultra Series Pistons are optimized to perform high-horsepower racing engines
    • Aligned Grain Flow Technology: Exclusively available on JE Ultra Series, this proprietary, in-house forging process maximizes tensile strength to withstand the stresses of high-performance engine environments
    • Skirt Coating: Reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise, especially on cold start
    • Thermal Barrier Crown Coating: This ceramic-based coating reflects heat into the combustion chamber, therefore reducing piston crown temperatures and improving exhaust gas scavenging
    • High-Strength Wrist Pins: Premium thick-wall wrist pins are manufactured by Trend Performance in the USA and are designed for the demands of high-performance/power-adder builds
    • Lateral Gas Ports: Help maintain power-producing ring seal at the top compression ring, even in high RPM and high boost situations
    • Optimized Pin Oiling: Enhanced pin oiling features keep pin, pin bores, and small-end lubricated for reduced heat, friction, and wear
    • Made 100% in the USA

JE Ultra, Audi, 2.5L TFSI TT RS 20V, 3.248 in. Bore, 9.50:1, Inverted Dome/Dish, Single Piston

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The JE Pistons 367846S Ultra Series Piston is designed for high-horsepower racing engines, featuring proprietary Aligned Grain Flow Technology for maximum tensile strength. It includes skirt and thermal barrier crown coatings for reduced friction, wear, and improved combustion efficiency. High-strength wrist pins and optimized pin oiling enhance durability, with lateral gas ports maintaining ring seal at high RPMs. This piston is proudly Made 100% in the USA and is specified for Audi 2.5L TFSI TT RS 20V engines, with a 3.248-inch bore and 9.50:1 compression ratio.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 367846S

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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