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Mountain MTN-9201 Spark Plug Insert for 9200 Kit

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0.10 LBS
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  • Mountan steel alloy spark plug insert for 9200 kit
  • Mountain MTN9201 Spark Plug Insert for 9200 Kit


Brand: Mountain, manufactured by Horizon Tools. Notice our bulk discount pricing for larger quantities.

Outside measurement .74" on outer part of threads, .85" on OD of lip
  • Patented lip makes sure there is no loss of compression.
  • Permanent fix to damaged cylinder threads for spark plugs making the threads 10 times stronger than original.
  • Replacement insert for the MTN9200 spark plug thread repair kit.
  • Replacement spark plug insert for Ford engines 4.6,5.4 & 6.8 Liter 2V's that have the typical "Blowout" problem.
  • Used to repair damaged cylinder heads with blown spark plugs without removing the heads.
Sparkplug insert size: M14x1.25 Taper seat insert for the Ford Cylinder Repair Kit (MTN9200). Packaged 1 insert per kit, in poly bag with label. Alloy steel insert.
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Warranty Information

Limited Lifetime
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4 Reviews

  • 5
    Very Satisfied!

    Posted by Michelle S. on 10th Jun 2020

    We own an auto repair shop and needed spark plug inserts for a 2000 Ford Expedition. Parts were well made and the customer service was exceptional! Pricing is awesome too! Will definitely order from this company in the future.

  • 5
    Great Value, Great Fix

    Posted by Joe B. on 12th Jul 2019

    2001 Ford Mustang GT Convertible. Product was delivered on time. Insert is exactly as described. Excellent workmanship and superior material. Fixed the blown plug problem permanently. Plan to put inserts in all 8 cylinders to eliminate the worry of another blown plug.

  • 5
    Great Fix

    Posted by Patrick S on 26th Nov 2016

    5.4 Triton stripped spark plug holes are a common problem. This product is a quality solution for this factory design flaw. Due to the quality of this product I am confident this is a permanent solution. Wiseautotools provided OUTSTANDING customer service and I would recommend them to anyone.

  • 5
    Spark Plug Blowout SOLVED!

    Posted by Mike F. on 18th Dec 2015

    I'm an ASE Certified Master Mechanic for over 35 years and this spark plug insert is better than the parts store kits by FAR!. This allows repair of the spark plug threads in a cylinder head without removing it which save tons of down time, labor time and most of all "money". You have to have the kit to do it right, but it's not priced too bad. In fact it's cheaper than most professional repair kits. And don't consider the cheap parts store kits because they are a total waste of money. Be sure to follow the instructions and blow out all the filings with compressed air. A can of brake clean will help to get the last bit of metal debris out. Remember to change the oil afterwards in case some brake clean gets down into the crankcase. A video inspection camera works better than a bore scope for a final inspection before putting the plug in. I've been doing this repair for years in my shop. I wouldn't want to use any other brand!

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