Parts/Tools & workshop/Hand tools & drivers/O.S. Glow Plug Wrench w/Plug Grip
O.S. Glow Plug Wrench w/Plug Grip
O.S.

O.S. Glow Plug Wrench w/Plug Grip

Part # OSM715210003.4(7)
Where to buy
$14.99
AMain Hobbies
Seen Oct 12, 2026
$14.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is a  O.S. Glow Plug Wrench with Plug Grip. This glow plug wrench is for use with cowled engines or those having deep heatsink type heads, such as car or helicopter engines. It has an internal grip which holds the plug securely while it is being withdrawn or reinserted making glow plug removal and installation quick and painless.
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews3.4 · 7 reviews

AnonymousVerified owneron O.S. Glow Plug Wrench w/Plug Grip

Agreed; I have this and about three or four other glow plug wrenches. This is the ONLY one that I use now. I even went and ordered the lastest "Speed" version offered by O.S. (maybe Amain will carry soon). The plug lock device has worked flawlessly for me for removing and installing glow plugs. Agreed on the handle length as well; I have not had any difficulty removing or installing glow plugs into the engine. After all, you are screwing a steel threaded glow plug into aluminum. I have stripped out the head button in the past (NOT WITH THIS TOOL) and had to replace the button as a result. I just can't believe someone didn't think of this before. I still remember messing around with glow plugs with RTR type glow plug wrenches, and trying to do all kinds of things to get the plug to hang in there. All in all, GREAT product! Highly recommend to anyone involved with nitro engines. I'm sure other manufacturers will follow suit on this design, with their own special twist of improvisions, of course.

AnonymousVerified owneron O.S. Glow Plug Wrench w/Plug Grip

Works great for me, just don't OVER tighten your plugs and it will do the job, just fine. Like the plug holder most because no worries about dropping your plug in the dirt and trashing it. Its not a good plug wrench for the basher guy's lol.

John ShawVerified owneron O.S. Glow Plug Wrench w/Plug Grip

So far so good. I needed a wrench that would hold the glow plug and this one fits the bill. The T-handle up top is a little short, but as long as i can get the plug started, I can tighten it up with my other wrench. Know this isn't ideal, but all I wanted was something that actually holds the glow plug.

Anonymouson O.S. Glow Plug Wrench w/Plug Grip

Bent both handles trying to get my plugs out. Works great for installing plugs, not so hot for removing them...

IanVerified owneron O.S. Glow Plug Wrench w/Plug Grip

What a crock of poo....the handle is to short. ............. The handle size is so you don't over tighten the glow plug. I've had one these for 12 months + now and have had no issues. Never had a plug come loose either. But I do make sure the turbo plug tapered seat is clean first.

What reviewers say

Reviews are mixed. Several owners say the plug-holding grip works well for installing glow plugs and prevents dropping them, and some report long-term use without problems when plugs are not overtightened. The short T-handle is a recurring complaint: multiple reviewers find it gives too little leverage to break loose plugs, especially turbo plugs, and one reviewer reports bent handles while removing plugs. One reviewer found it uncomfortable to hold and recommended a competitor's wrench instead. Some reviewers accept the short handle as a deliberate tradeoff against overtightening. Overall the tool appears better suited to installation and light work than to removal of tight plugs.

  • + Holds glow plug securely during installation
  • + Prevents dropping plugs in dirt
  • + Reliable over long-term use for some owners
  • + Helps avoid overtightening
  • − Handle too short for leverage
  • − Struggles to break loose tight or turbo plugs
  • − Bent handles reported during removal
  • − Uncomfortable for some users
Summary generated from the reviews above.

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