2 Tensioner Hydraulic Tensioner 3 Auto.Tensioner Unit 4 Idler
5 Timing Belt Kit
Hydraulic Tensioner Hydraulic Tensioner
Originally a Hydraulic Tensioner QTB546 Originally a Thermo Tensioner QTB428 QTT960 QTT970 QTT498 QBK568 QBK643
153 x 25mm 152 x 25mm
2
QTT960
3 QTT970
4 =1+2+4 =1+2+3+4 5 G AUX - Auxiliary 54 BS - Balance Shaft
# Important: Original ‘Thermo’ Tensioner set up (152 Tooth belt) belt only replacement is QTB428. Complete Kit replacement use QBK643 (do not use QBK568 only). Original ‘Hydraulic’ Tensioner set up (153 Tooth belt) use QBK568 or QBK643 depending on the need for QTT970.
CAM - Camshaft CS - Crankshaft IP - Injection Pump OP - Oil Pump VP - Vacuum Pump * Quinton Hazell recommend that Camshaft belts and Balance Shaft / Inj.Pump belts should be replaced at the same time.