This bulletin provides information regarding the changes in the timing chain and the crankshaft sprockets on certain Azera, Santa Fe, Genesis and G90 vehicles equipped with the Lambda 3.3L/3.8L GDI engines. 

More specifically, this involves 2012-2017 Azera, 2013-2018 Santa Fe and 2019 Santa Fe XL, 2012-2014 Genesis BH with the 3.8L engine, 2015-2016 Genesis DH with the 3.8L engine and 2013-2016 Genesis Coupe BK with the 3.8L engine.

PART                                       OLD                              NEW

Timing chain................... 24312-3CGA2................ 24312-3L100

Crankshaft sprocket.... 23121-3CGA3 (LH)........ 23121-3L100 (LH)

Crankshaft sprocket.....23122-3CGA-1 (RH).......23122-3L100 (RH)

Note: Two timing chains are required. Both RH and LH crank sprockets are required. New and old part numbers cannot be interchanged.