Item Code:PTEWG46
Brand:Precision Turbo
MFG Part:085-2000
Material:347 Stainless Investment Cast Valve Body

The Precision Turbo PW46 Wastegate is a 46mm external wastegate with v-band 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 PW46 Valve is designed to be a direct replacement for most manufacturers flanges. Every valve is warranted to be free from manufacturer’s defect for 12 months or 12,000 miles!

The PW46 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 PW46 Instruction Manual.

Precision PW46 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 most 44mm units


  • PW46 46mm Wastegate Valve Assembly
  • All 5 Springs (Red & Green Pre-Installed – 15 psi/1.03 bar)
  • Valve Seat
  • 304 Stainless Steel Inlet V-Band Flange and Clamp (85-90 in-lbs) (Counterbored for 1-7/8″ OD Tubing)
  • 304 Stainless Steel Outlet V-Band Flange and Clamp (85-90 in-lbs) (Counterbored for 1-3/4″ 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
Precision Turbo PW46 46mm Wastegate Spring Chart
4.50.31Natural + Yellow
7.50.52Natural + Red
10.50.72Natural + Green
12.00.83Yellow + Green
13.50.93Natural + Yellow + Green
15.01.03Red + Green
16.51.14Natural + Red + Green
19.51.34Natural + Blue
21.01.45Yellow + Blue
22.51.55Natural + Yellow + Blue
24.01.66Red + Blue
25.51.76Natural + Red + Blue