Oil restictor for large Garrett GT-R turbocharger Oil inlet adapter with 1,6mm restrictor For GTX and GT4088R, GT4094R, GT4294R, GT4202R and larger The oil restictor is mandatory for all ball-bearing turbochargers from GT40R on engines with more than 3bar oil pressure in the full load range! If this is not used, bearing damage is not far away! The adapter has the male 1/8" Garrett thread on the turbocharger side and a 1/8" NPT female thread on the other side for mounting our 1/8" NPT self-made hydraulic fittings. There is a 1.6mm hole in the adapter for pressure reduction. For safety reasons we recommend our oil inlet filters, which keep small dirt particles in the oil and thus prevent clogging of the adapter. Thread: 1/8" NPT male thread and 1/8" NPT female thread Bore: 1,6mm Width across flats: 13mm Material: Aluminium anodized Fits: T3, T3/T4, T4 GT3788R Garrett GT4088R (751470-1 / 751470-2 / 751470-3 / 751470-4) GT4094R (751470-19 / 751470-20 / 751470-21 / 751470-22) GT4294R (774595-1 / 774595-2 / 774595-3 / 774595-4) GT4202R (774595-5 / 774595-6 / 774595-7 / 774595-8) GTX4094R (800269-1) GTX4202R (800269-2) GTX4508R (800270-1) GT47/GTX47, including GT4708R, GTX4708R, GT4718R, GTX4718R GTX5008R, GTX5018R GT55/GTX55, including GT5518R, GTX5518R, GT5533R, GTX5533R, GEN2GTX5533R What you should watch out for: Select at least one Dash 4 line as the feed line. The oil return line must be at least Dash 10 or at least 16mm inside!