This tool is specifically designed for holding the sprocket/chain in place when disassembling the VP44 Injection Pump* and the high pressure pump on common rails fitted to BMW engines.
Vehicle Applications:
M47 | M47T2 | M47TU | M57 | M57TU on BMW 318D | 320D (E46) 1988-2005 and 318TD 320TD | 525D | 530D | 530 | 535 (E60-E61) 2000-2006
*(chain is on the inside of the engine, so support wiill be required to stop it from falling into the engine).
OEM Code 13 5 191 & 13 5 192.