Oil restictor for Garrett GT-R turbocharger
brass adapter with 0,9mm restrictor
Necessary for oil pressure above 3 bar
The oil restictor is mandatory for all ball-bearing turbochargers GT25 to GT35 on engines with more than 3 bar oil pressure in the full load range. If this is not used, bearing damage is not far away.
The adapter has on the turbocharger side the special M11x1 thread and on the other side a Dash 4 / 4 AN thread for the assembly of our do-it-yourself hydraulic fittings. There is a 0.9mm hole in the adapter for pressure reduction- Forsafety reasons we recommend our oil inlet filters, which retain small dirt particles in the oil and thus prevent clogging of the adapter.
Thread: M11x1 and Dash 4
Width across flats: 13mm
After the oil inlet adapters, or oil restrictors, have always been made of aluminium with an eloxide layer, we have now changed the material to brass. Brass is much softer than aluminum and nestles to the built-in cone in the Garrett turbochargers. The brass adapter perfectly seals the oil inlet. Those who have had problems with the tightness of the aluminium adapters should rely on our new brass adapters.
Garrett GT2554R (471171-5003)
GT2859R (780371-5001 / 707160-5009)
GT2860R (707160-5007 / 707160-5005 / 739548-5009)
GT2860RS (739548-5001 / 739548-5005)
GT2871R (743347-5001 / 743347-5002 / 743347-5003 / 743347-5004 / 472560-5015 / 771847-5001 / 780371-5002 / 707160-5010)
GT2876R (705330-5001 / 705330-5002)
GT3071R (CHRA 700177-5023)
GT3582R (714568-5001 / 714568-5002 / 714568-5003 / 714568-5007 / 714568-5008 / 714568-5009 / 714568-5010 / 714568-5011 / 714568-5012)
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.