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New 3T8706 Glow Plug Replacement suitable for Caterpillar Equipment
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Description for 3T8706 Glow Plug
â–¶Specification for 3T8706 Glow Plug
â–¶Exact Fit Guarantee for 3T8706 Glow Plug
â–¶Reviews
Customer Reviews
The best supplier ever we mainly deal with most rare needed parts .. i highly recommend .. they are very very honest
Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them
Original Review (Spanish)
Si necesitas piezas de repuesto a buen precio para tu m?quina grande y quieres un servicio al cliente atento, esta tienda es una muy buena opci?n.
English Translation
If you need affordable replacement parts for your heavy equipment and want attentive customer service, this store is a very good option.
Customer Service.
I recently had to cancel an order with Propel Parts, and I was thoroughly impressed by the prompt and efficient service I received. Steven handled my request with professionalism and speed, ensuring a hassle-free process. I've purchased parts from Propel Parts before and have never been disappointed. Their consistent reliability and excellent customer service keep me coming back.
Great customer service!
Great company to deal with. Answered my questions with detail and shipped me the part in good time! I will be dealing with them more in the future!
La mejor experiencia y calidad
Great service affordable parts
Good service, quick response.
Grateful I found this company!
I’m grateful I found this company! They answer the phone every time plus the parts are packaged very well!! Even the angriest mailman couldn’t damage your parts! lol The parts showed up as planned and for being aftermarket the quality seems to be good!! The warranty is the same as CAT. Thank you Daniel!!!
Product Questions
Frequently Asked Questions
What is the function of the 3T8706 glow plug in Caterpillar engines?
The 3T8706 glow plug is a cold-start aid designed for diesel engines. It heats the air inside the combustion chamber before startup, making it easier for the engine to ignite fuel in low temperatures. This helps improve starting reliability and reduces excessive engine cranking during cold starts.
Which Caterpillar engines are compatible with the 3T8706 / 4N0360 glow plug?
Machine configurations and serial number ranges can affect whether the 3T8706 is the right fit. Check your equipment manual to confirm, or contact Propel Parts and our team will help identify the correct part for your application.
What voltage is the 3T8706 glow plug designed for?
Most 3T8706 glow plugs are designed as 24-volt pre-heating components used in heavy-duty Caterpillar diesel engines. The correct voltage ensures the plug heats properly to assist with engine startup and efficient combustion during cold conditions.
What are the common signs of a failing glow plug?
A worn or malfunctioning diesel glow plug may cause several symptoms, including:
- Hard starting, especially in cold weather
- Longer engine cranking time
- White smoke during startup
- Rough engine idle immediately after starting
Early detection of these issues and timely 3T8706 replacement helps extend equipment life and reduce the chance of more expensive repairs.
How do I install the 3T8706 glow plug correctly?
Follow these general steps for proper installation:
- Turn off the engine and allow it to cool completely.
- Disconnect the electrical connection from the old glow plug.
- Carefully remove the worn glow plug using the correct socket.
- Thread the new 3T8706 glow plug into place and tighten to the
> recommended torque specification.
- Reconnect the electrical connector and test the glow plug system
> before starting the engine. Proper installation helps ensure safe operation and reliable cold-start performance.
Is the 3T8706 glow plug available as an aftermarket replacement?
Yes, the 3T8706 glow plug replacement is widely available as a premium aftermarket component designed to meet OEM specifications for fit and durability. When replacing engine parts, it is recommended to choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to maintain dependable engine performance.
Why is replacing worn glow plugs important for diesel engines?
Leaving a damaged 3T8706 in place accelerates wear on adjacent components and increases the risk of a larger, costlier failure. Timely replacement restores proper function and helps keep the machine running reliably.
Compatible Models
This 3T8706 Glow Plug is compatible with the following models:
3406, 3408, 3412 & more...
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.
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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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