Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
13. Remove the oil cooler adapter bolts from the oil filter adapter/oil cooler.
14. Remove the oil cooler adapter.
15. Remove the oil filter adapter/oil cooler bolts.
16. Remove the oil filter adapter/oil cooler.
17. Remove and discard the oil filter adapter/oil cooler O-ring seals.
18. If required, clean and inspect the oil filter adapter/oil cooler.
Installation Procedure
