4AN Turbo Oil Feed Line Kit With Restrictor - Fits Audi A4 A6 VW Passat 1.8T

Hey gearheads! If you're dealing with turbo oil feed line issues on your 1.8T, this complete 4AN kit has you covered. This isn't some cheap parts store special - we're talking about a proper upgrade that includes everything you need: a 1/4 inch Teflon hose, M12x1.5mm pitch adapter with restrictor, 12mm banjo bolt for the engine oil supply, a 4AN to 4AN 90-degree adapter fitting, and three copper washers to seal everything up tight. It fits a bunch of models - Audi A4 B5/B6 from 1998-2005, A6 C5 from 1998-1999, and VW Passat B5 1.8T from 1996-2005. The kit replaces those factory part numbers 06B145771P/F/N and works with K03-005, K03-029, and K04-015 turbos (that's part numbers 53039700005, 53039700029, and 53049700015 if you're checking). The restrictor fitting is key here - it helps control oil flow to your turbo, which means better protection and longer turbo life. Installation's pretty straightforward if you know your way around an engine bay, and you'll have peace of mind knowing you've got quality components feeding your turbo. No more worrying about oil starvation or pressure issues!