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GT15-GT35 Billet Turbo Oil Return Drain Flange T3 1/2npt Outlet

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Billet Turbo Oil Drain Flange 1/2"NPT Thread

Used to add a 1/2" NPT oil drain to a turbocharger.

  • Compatible with: GT15-GT35 turbochargers
  • 1-1/2" to 1-3/4" Bolt Spacing
  • Made in Wichita, Kansas from aerospace grade, USA produced billet aluminum
  • Includes: 1 Drain Flange, 1 Gasket, and 2 Bolts

***Please measure flange on your turbo and refer to our dimension guide to guarantee fitment, due to manufacturing differences we have seen a growing number of turbos with incorrect flanges from the factory***

More Information

Manufacturer Part Number 551163
UPC 656729842911
Weight 0.250000
ICT Manufacturer ICT Billet
United States United States
Length Inches 3
Width Inches 1
Height Inches 1

WARNING - This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.