**For the most precise boost control you will need (quantity of 2) 3 port Mac valves
-Retaining Screws are 8/32 UNC (Uses 9/64" Hex Key)
-32 Teeth For High Resolution
• 1/8” NPT
3/8 NPT Coolant Temp Sensor PN: 25036979 Push Lock Fittings **For the most precise boost3 8 NPT Coolant Temp Sensor GM Delphi Packard Fluid Temperature NOT FOR LSX HEAD 1: 1 replacement for GM coolant temp sensors PN: 25036979, 10045847, 12146312, 15321686, 15326386, 1580468, 1580536, 213310, 2134396, 21352, 213928, 25036092, 25036708, 25036979, 25037182, 31022662, 33001793, 5744030, 8100458470, 8121463120, 8133450, 8153263860, 8250360920, 8250369790, J8133450. Same sensor used with most aftermarket standalone ECUs. *Includes GM Delphi