Precision Turbo 39mm Wastegate

The Precision Turbo PW39 Wastegate is a 39mm external wastegate with 2-bolt flange connections. With over 60 years of turbocharger development and racing experience, Precision Turbo takes great pride in providing the best external wastegate on the market today. Precision's PW39 Valve is a direct replacement for existing 38mm wastegate flanges. Every valve is warranted to be free from manufacturer's defect for 12 months or 12,000 miles!

The PW39 is constructed from the highest grade components, inside and out. From the high temperature 347 stainless steel investment cast valve body to the Kevlar reinforced diaphragm. The investment casting process leaves you with a smooth internal surface finish for better flow and accurate boost control. A satin black anodized wastegate cap finished off the look for long lasting, low key appearance.

Click here to download the Precision Turbo PW39 Instruction Manual.

Precision PW39 Features:

  • 347 Stainless Steel Investment Cast Valve Body
  • Nickel Chromium Alloy Valve Seat
  • 6061 Billet Aluminum Housing w/ Black Satin Anodizing
  • 17-7 Precipitation Hardened Springs
  • Compatible with most aftermarket boost controllers (manual and electronic)
  • Direct Fit Replacement for standard 38mm Wastegate Flanges


  • PW39 39mm Wastegate Valve Assembly
  • All 5 Springs (Two Pre-Installed)
  • Valve Seat
  • 304 Stainless Steel Inlet Flange (Counterbored for 1-1/2" OD Tubing)
  • 304 Stainless Steel Outlet Flange (Counterbored for 1-1/2" OD Tubing)
  • Pair of Banjo Air Fittings (M10 x 1.0, will also accommodate 1/8 NPT)
  • Pressure Port Cap w/ Seal Washer (M10 x 1.0, will also accommodate 1/8 NPT)
  • Instruction Manual w/ Spring Chart

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  • Item #: PTEWG39mm

Precision Turbo 39mm Wastegate

Price: £199.99
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