GM Service Manual Online
For 1990-2009 cars only

    Object Number: 858163  Size: SH
  1. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the heater outlet hose fitting threads.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the heater outlet hose fitting and tighten to 45 N·m (33 lb ft).