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New 3T2357 Switch As (Horn) Replacement suitable for Caterpillar Equipment
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Description for 3T2357 Electrical Switch
â–¶Specification for 3T2357 Electrical Switch
â–¶Exact Fit Guarantee for 3T2357 Electrical Switch
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Customer Reviews
Always helpful and great pricing
A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.
Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.
Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.
? Jimmy Spong
Hartco Mobile Welding
P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
Excellent and prompt response.
Propel parts team helped me greatly regarding a special request and I always get prompt response.
They’re fantastic!
Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
Great site and price
Everything fine, thank you. The only thing with which I had a problem in your Software, is that when I have more than 10 different items on the list, I can't scroll to the first ones. But besides that, I am very happy in going on with buying your parts.
Quick Response. Very much appreciated.
Customer service was excellent today! I have never had a company go behind the scenes to see what was happening with my payment error and resolve it so I could complete my order without having to do it all over again. Hats off to Propel Parts!
Online order.
I had a good experience this morning I placed an online order and everything went smoothly. The staff at propel parts has always been helpful in the past when I have been looking for harder to find parts or something that wasn’t listed online.
Great customer service
Anthony was very professional and on top of what needed to be done to get my order verified and moving forward.
Product Questions
Frequently Asked Questions
What does the 3T2357 Switch As Horn do?
The 3T2357 Switch As Horn is the operator-activated horn switch used in Caterpillar heavy equipment cabs. When pressed, it completes the electrical circuit to sound the machine's horn — an essential safety feature for alerting workers around the job site. A faulty horn switch can be a compliance and safety issue.
What Caterpillar models use the 3T2357 horn switch?
The 3T2357 is found on various Caterpillar dozers, graders, wheel loaders, and other cab-equipped machinery. Compatibility depends on the specific cab configuration. Check your manual or reach out to Propel Parts for help verifying fitment before ordering.
How do I know if my horn switch has failed?
Common symptoms of a failed horn switch include:
- Horn does not sound when the button is pressed
- Horn sounds continuously without pressing the switch
- Intermittent horn operation
- Visible damage, corrosion, or a stuck button on the switch housing
Always test the horn circuit (fuse, relay, and horn itself) before concluding the switch is at fault.
Is the 3T2357 a direct plug-and-play replacement?
Yes. This high-quality aftermarket horn switch is designed to meet OEM specifications, using the same connector and mounting configuration as the original. In most cases, replacement involves disconnecting the wiring harness, unbolting the old switch, and reversing the process with the new one — no wiring modifications needed.
Can I replace the horn switch without removing the entire steering column?
In most Caterpillar cab designs, the horn switch is accessible without full steering column disassembly. However, the exact procedure varies by model and cab layout. Always consult your service manual and disconnect the battery before working on any electrical components.
Where is the horn switch typically located in the cab?
On most Caterpillar equipment, the horn switch is integrated into the steering wheel hub or mounted on the operator's control panel. Its exact location depends on the machine model and generation. Refer to your operator's manual for a clear diagram.
Does Propel Parts ship electrical switches internationally?
Yes, Propel Parts ships worldwide. If you need other electrical components for your machine, you may also want to browse related switches such as the 9G8011 Switch A for Caterpillar Equipment, which covers similar cab-switch applications.
Shipping | Returns
Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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