Garrett 767567-0002 oil restrictor (turbo oil inlet) for GT25, GT28, GTX28, GT30, GTX30, GT35, GT40, G25, G30, G35 series turbochargers (AN-4)

Garrett oil restrictor is recommended for optimal performance with ball bearing turbochargers. Oil pressure of 40 – 45 psi at maximum engine speed is recommended to prevent damage to the turbocharger’s internals. In order to achieve this pressure, a restrictor with a 0.040” orifice will normally suffice, but you should always verify the oil pressure entering the turbo after the restrictor to ensure the components function properly. Recommended oil feed is -3AN or -4AN line or hose/tubing with a similar ID.