Fits factory 2014 - 2018 BMW M3 F80 and M4 F82 F83
This rebuild kit has TDO4 journal bearings which have a larger inside diameter to match the TDO4 turbine shaft in comparison to the factory TFO35 journal bearings that are smaller to match TFO35 upgraded shafts
These rebuild kits are for upgraded TDO4 turbos such as Vargas or Pure
installation o-rings for oil and coolant lines and drain gasket included
This kit has a dual oil port machined from cooper bar upgraded thrust bearing, 14mm collar and 14mm spacer which provides durability which is important for running over 21 PSI
Machining maybe required for clearance for the upgraded thrust collar / spacer
The factory collar and spacer have approximately 10mm of surface area on the thrust bearing, the larger 14mm collar and spacer have more surface area on the thrust bearing which is important to prevent thrust bearing failure if you are increasing
staggered rear piston ring included for better sealing
We had great results out of these kits in our upgraded turbo rebuilds, the thrust bearing components in this kit is critical for reliability of your turbo. Do not use steel or factory thrust bearings if you are tuning and increasing the boost on the car it will fail.
