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T04 (a.k.a. T4) (TK053)

This flange is common to alot of medium frame turbochargers. T04E, T04B, and T-series are some of the most common. There are more than one kind of the standard flange, as some turbochargers have twin scrolls, but the flange is otherwise the same dimensions. The purpose of having twin scrolls is to equalize the exhaust pulses flowing to the turbine. All TK053 flanges come threaded in 3/8 in. x 16 pitch.

Turbo Flange T4

 

Twin Scroll T4:

Turbo Flange t4 Twin Scroll

Turbo Charger Flange t4 Diagram Measurements

 

T6 (TK310)

These are for very large turbochargers, found on some turbocharged vehicles with large engines. There are more than one kind of the standard flange, as some turbochargers have twin scrolls, but the flange is otherwise the same dimensions. The purpose of having twin scrolls is to equalize the exhaust pulses flowing to the turbine.

Turbo Flange T6

 

Twin Scroll t6 flange:

Twin Scroll T6 Turbo Flange

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