FITS: WESTERN STAR CONVENTIONAL 1997-2002
PART NO. 20534
Western Star Conventional 1997-2002 - Exterior mount.
Order Part# 20534
Instructions: Heater and air conditioning intake located on right side of truck, behind engine air cleaner. To attach filter, slide in from front or back of air cleaner... whichever allows enough room. Slide filter over intake with small notched lip into opening and by using a long screwdriver, press small notches into opening. Filter should be secure if all 4 notches are in opening.
Replacement elements order Part# R20534