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Specifications

The Ecco ED3974AW, part of the ED3974 Series Window Shroud Light, is a high-performance directional LED safety light designed for interior window mounting. With dual-color amber/white LEDs, this compact 7.8″ shroud delivers 67 selectable flash patterns—including steady burn—and adjusts ±7.5° to align with diverse window angles. It installs securely with VHB tape, operates on 12–24 V DC, draws 1.7 A, and functions across extreme temperatures (−40 °F to 149 °F). Built to SAE Class I standards with CA T13, R65, R10, RCM, and RoHS certifications, the ED3974AW is backed by a 5‑year warranty. Ideal for work trucks and emergency vehicles, it ensures reliable visibility and compliance.
Weight
1.7

Compatibility

Freightliner
• Argosy (2000–2025)
• Cascadia, Cascadia 113, Cascadia 125 (2008–2025)
• Century (1997–2016)
• Classic (1991–2017)
• COE (Custom Cab-Over-E Engine) (1991–2016)
• Columbia (2000–2017)
• Coronado (2001–2025)
• FL Series – FL50, FL60, FL70, FL80 (2001–2012)
• FL106, FL112 (2010–2025)
• FLD112, FLD120, FLD132 (1991–2025)
• M2, M2 106 (2003–2025)

Kenworth
• C500, K100, K300 (1990–2015)
• T170, T2000, T270, T300, T370, T400, T450 (1997–2015)
• T600, T660, T680, T700, T800, T880 (1984–2025)
• W900, W900A, W900B, W900L, W990 (1961–2025)

Peterbilt
• 320, 325, 330, 335 (1995–2025)
• 337, 348, 357, 359 (1990–2025)
• 362, 365, 367 (1997–2025)
• 375, 376, 377, 378, 379 (1990–2025)
• 384, 386, 387, 388, 389 (Year model ranges vary, '90s–2025)
• 567, 579, 587 (1990–2025)

International
• 1452FC, 1452SC, 1652SC, 1652UPS (1995–2025)
• 2554, 2574, 2575, 2654, 2674, 2675 (1990–2025)
• 3000, 3800, 4000, 4100, 4200, 4300, 4400, 4600, 4700, 4800, 4900 (1990–2025)
• 5500i, 5600i, 5900i (1997–2025)
• 7100, 7300, 7600, 8100, 8200, 8300 (2000–2025)
• 9200, 9300, 9400, 9600, 9670, 9700, 9800, 9900 (1995–2025)
• LoneStar, ProStar, TranStar 8500 & 8600, WorkStar 7600 & 7700 (1997–2025)

Volvo / White / GMC
• VN, VN2, VNL, VNM (1996–2025)
• WIA & White GMC models (1990s–2025)

Mack
• CH, CHN, CV, CXN, Granite (1990s–2025)
• Pinnacle (Vision Elite), R600 & R700, RD, RH, Vision (2000–2025)

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