This Knob from Miller Industries identifies the Underlift In-Out Knob of Century and Challenger Wreckers. It is used on the control assembly of these wreckers. Please see the features below for a list of wreckers and see the brochure tab for breakdowns.

• Under Lift In-Out Knob
• Grey with Black Lettering
  
  Fits:
• Century 1040B SDU3 (06/2005 - Current)
• Century 1060 SDU 2 (12/1998 - Current)
• Century 1060S SDU2 (01/2000 - Current)
• Century 1060S SDU3 (03/2006 - Current)
• Century 1075S SDU4 (11/2007 - 07/2011)
• Century 1075S SDU4 REV A (07/2011 - Current)
• Century 1140 & 1130 SDU4 & LDU, REV A (11/2009 - Current)
• Challenger 9909 & 8808 Rotators (12/2001 - Current)
• Product Dimensions: 1.49"L x 1.37"H x 1.37"H
• Inside Diameter: .32"
• Outside Diameter: 1.37"