FITS: WESTERN STAR 2002-2005 – PART NO. 20537

Western Star- 2002-2005. Fits all models.  Replaces OEM #WWSRD-3-8416-0.

Order Part# 20537

Instructions: Remove OEM Filter. Replace with CAB Fresh Filter with charcoal. Air flows through white filter material first.

Replacement elements order Part# R20537