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Description
572 ROUND 2-PRONG LED TURN SIGNAL FLASHER / RELAYTechnical Specifications Part Type LED Turn Signal Flasher Relay Part Number 572 Brand Line Peterson Manufacturing Description 2 Prong Round LED Flasher. Electronic flasher designed specifically for LED turn signal applications. Classic round design with 2 prong connection allows direct plug in replacement of older thermal flashers. Provides consistent flash rate with LED loads. Connector 2 Prong Round Compatibility LED Turn Signal Lights Key Feature
Technical Specifications
| Part Type | LED Turn Signal Flasher / Relay |
| Part Number | 572 |
| Brand / Line | Peterson Manufacturing |
| Description | 2-Prong Round LED Flasher. Electronic flasher designed specifically for LED turn signal applications. Classic round design with 2-prong connection allows direct plug-in replacement of older thermal flashers. Provides consistent flash rate with LED loads. |
| Connector | 2-Prong Round |
| Compatibility | LED Turn Signal Lights |
| Key Feature | Direct replacement for thermal flashers in LED-equipped vehicles |
| Packaging | Poly Bag |
| Application | Turn signal flasher for heavy-duty trucks, trailers, and vehicles with LED lights |
Cross References
| Brand | Part Number |
|---|---|
| Peterson Manufacturing | 572 |
| Peterson Manufacturing | 576 (20-Lamp Electronic Flasher, 2-Prong) |
| Application | 2-Prong Round LED Turn Signal Flasher |
Vehicle Fitment
| Make | Model | Model Years | Notes |
|---|---|---|---|
| UNIVERSAL | All Heavy-Duty Trucks & Trailers with 2-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 | LED turn signal 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 | LED turn signal 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 | LED turn signal flasher | |
| Universal for any vehicle with a standard 2-prong round flasher socket that has been upgraded to LED turn signals. | Direct plug-in replacement | ||
| Notes | Peterson 572 is a reliable electronic LED flasher in the classic round 2-prong format. It provides a consistent flash rate even with low-draw LED lights (unlike older thermal flashers that often hyper-flash with LEDs). Simple plug-and-play installation makes it a popular choice for fleet upgrades and aftermarket LED conversions. | ||
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 2069 reviews
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Product Reviews
★★★★★ 5
Perfect fit
Size: Large, Color: (100) White / White / Black
Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Post-COVID Sock Hunt: Finally a Win
Size: Medium, Color: (001) Black / Black / White
Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast.
These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid.
A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day.
We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice.
Ratings:
• No slipping: 10/10
• Price: 7/10
• Durability (so far): No pilling or loose threads — promising start.
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Reviewed in the United States on March 24, 2025
★★★★★ 5
Great Quality and Stylish
Size: Large, Color: (001) Black / Black / White
Exactly what I was looking for. I don’t like socks that are no-show that your ankles rub on the shoe. These are taller than that but shorter than socks that go up and over the ankle. They’re comfortable, good quality, and pretty thick. They’re form fitting m, but not compression. I dint like compression socks, and these are tight, but not too tight.
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Reviewed in the United States on June 5, 2025
★★★★★ 5
Affordable and good quality socks
Size: Medium, Color: (001) Black / Black / White
Good quality!
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Reviewed in the United States on May 9, 2026
★★★★★ 4
Socks
Size: Large, Color: (001) Black / Black / White
They are very comfortable and fit just right
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Reviewed in the United States on September 3, 2025