Product Details
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More info
The Traxxas Super-Duty Glow Plug is a long/medium-length replacement designed to restore dependable starting and stable idle for TRX 2.5, 2.5R, and 3.3 engines. It ships with a gasket for a proper head seal and fits applications that require the longer plug profile.
Key Features
- Direct replacement for TRX 2.5, 2.5R, and 3.3 engine heads — installs the same way as the original plug.
- Long/medium length profile fits cylinder heads that require extended reach for consistent combustion.
- Super-duty construction for dependable heating characteristics and repeatable hot starts.
- Includes gasket to ensure a solid head seal and prevent leakage after installation.
- Recommended plug choice for Traxxas nitro engines to maintain intended ignition behavior.
What's Included
- Super-duty glow plug with gasket
Why Choose This Glow Plug
Use the Traxxas Super-Duty Glow Plug when you want a straight swap that keeps your TRX engine starting reliably. The included gasket helps keep combustion sealed, and the long/medium design matches heads that need extra reach.
About the Brand

Customer reviews
Worth the extra cost
I used to think all glow plugs were the same, but they're def not. My rc runs so much better now. The tuning problems I had are gone. Don't ask me how it works, but it's def worth the extra bucks. Got it awhile back, ran through a gallon and it's still going strong.
Super Duty Glow Plug
This glow plug is super duty! It's been awesome in my buggy, even after a rich break-in, still going strong. I was really impressed by how well it worked. Other ppl talk about burning out plugs during break-in, but not with this one. I did a very rich break-in, had nitro fuel coming out the exhaust for over 10 tanks, and the plug still burns bright. I don't run it too lean bc I live in the midwest and it's winter, but your results might vary if it's warmer or you run leaner.