579 ELECTRONIC FLASHER, 3-PRONG 25-AMP

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Technical Specifications

Part Type	Electronic Flasher / Turn Signal Relay
Part Number	579
Brand / Line	Peterson Manufacturing
Description	25 Amp Electronic Flasher; 3-Prong. Heavy-duty electronic flasher with 25-amp rating per side. 3-prong design for standard installations. Meets FMVSS 108 and SAE J590 & J945 specifications. Flash rate 60-120 FPM.
Connector	3-Prong
Current Rating	25 Amp per side
Flash Rate	60-120 FPM
Key Feature	High-amp electronic design with 3-prong connector
Packaging	Poly Bag
Application	Turn signal and hazard flasher for heavy-duty trucks and trailers

Cross References

Brand	Part Number
Peterson Manufacturing	579
Peterson Manufacturing	576 (20-Lamp Electronic Flasher, 2-Prong)
Application	25 Amp Electronic Flasher, 3-Prong

Vehicle Fitment

Make	Model	Model Years	Notes
UNIVERSAL	All Heavy-Duty Trucks & Trailers with 3-Prong Flasher Socket (Freightliner, Kenworth, Peterbilt, International, Western Star, Mack, Volvo, Sterling)	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026	High-capacity turn signal / hazard flasher
Buses & Coaches	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026	High-capacity turn signal / hazard flasher
Trailers & Vocational Equipment	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026	High-capacity turn signal / hazard flasher
Universal for any vehicle with a standard 3-prong flasher socket requiring high current capacity.	Meets FMVSS 108 and SAE J590/J945
Notes	Peterson 579 is a robust 3-prong electronic flasher rated for 25 amps per side. It delivers reliable performance under heavy electrical loads and meets all relevant federal and SAE standards. Ideal for trucks and trailers with multiple lights or aftermarket lighting upgrades that require higher current capacity than standard flashers.

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579 ELECTRONIC FLASHER, 3-PRONG 25-AMP