AST5258  is used to lock the high pressure fuel pump sprocket to enable the sprocket nut to be loosened in order to remove the HP Fuel Pump fitted to the PSA 1.6 BlueHDi.  This engine is found in various applications, including DS, Ford, Toyota, Opel/Vauxhall and Volvo.

This sprocket locking pin enables the technician to loosen and tighten the high pressure fuel pump sprocket retaining nut to facilitate the removal / installation of the high pressure fuel pump. Toyota list this pin as a requirement for the high pressure fuel pump sprocket alignment during timing belt replacement.

AST5258 is equivalent to OE Ref: 0194-J, MB996235

Typical applications covered:

DV6FCU (BHX), DV6FDU (BHS/BHV), DV6FE