Heavy Duty Lighting Stainless Security Flange Part No: HD40099SS
$8.37
The HD40099SS Stainless Security Flange by Heavy Duty Lighting is a high-quality, polished stainless steel security ring designed to secure industry-standard 4″ grommet-mounted STT, park/turn, and backup lights. Sold by Wofford Truck Parts, it helps prevent light theft, ensures stable mounting, and delivers a rugged, polished look. Compatible with all standard 4″ light housings—this flange is a reliable, maintenance-friendly accessory built to last.
Specifications
Compatibility
Century Class – 1996 to 2010 in North America
Classic / Classic XL – 1990 to 2010
Columbia – ~2001 to 2011
Cascadia – 2008 to present (1st gen: 2008–2017, 2nd gen: 2018–present)
S Series – 1977 to 2001
9000 Series (9100, 9200, 9400, 9900) – 1971 to 2017
ProStar – 2006 to 2016
LT Series – 2017 to present
LoneStar – 2009 to 2024
T600 – 1985 to 2007
T660 – ~2007 to 2017
T680 – 2013 to present
R Series – 1966 to 2005
CH Series – 1988 to present
Anthem – 2018 to present
Other vocational models
379 – 1987 to 2007
389 – 2007 to present
579 – 2012 to present
VNL – 1996 to present (updates in 2003, 2015, 2018)
VNR – 2017 to present
Older VN series – mid-1990s to early 2000s
4900 – 1989 to present
5700XE – 2015 to 2022
57X – 2022 to present
Alternative Part Numbers
- Aftermarket 4″ Stainless Security Flanges
- HD40099SS
- Truck-Lite 97337 / 97337-1
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