Description
Fits Almost Anything That Runs!
“This set is a absolute necessity for using your compression tester on modern engines. There was the part I needed to adapt my compression tester for the 5.4 V-8 engine. Long spark plugs, deep holes.” - Dan K.
Why Get Our Compression Tester Spark Plug Adapters Set?
✅One Kit for Many Engines: Compression testing becomes a hassle when your adapter doesn’t match the engine’s spark plug size. With four adapter sizes, this set fits most small to mid-size gas engines. Whether you're working on a motorcycle or a mower, you'll have the thread you need. All adapters connect to testers with a 14mm x 1.25 male thread, making it easy to use with most standard compression tools.
✅Covers Specialty Sizes Too: Includes the less common 16mm x 1.5 adapter for select Ford engines, giving you access to harder-to-match setups.
✅Engineered to Last: Durable construction and tight-sealing O-rings let you test reliably without worrying about leaks, wear, or inconsistent results.
📓FREQUENTLY ASKED QUESTIONS
Q: What engines will these adapters work with?
A: This set works with a wide range of gas engines, including motorcycles, snowmobiles, ATVs, lawn equipment, outboards, and small vehicles. It includes four common thread sizes to cover most spark plug ports.
Q: Will these adapters fit my compression tester?
A: These adapters are compatible with testers that accept a 14mm x 1.25 male thread. If your tester uses that standard size, the set will fit without any issue.
⚙️ Specifications:
- Color: Gold
- Item Weight: 0.25 lbs.
- Material: Steel and Rubber
- Compatibility: Compatible with testers using a 14mm x 1.25 male thread. Works with a wide range of gas engines including motorcycles, ATVs, outboards, lawnmowers, and snowmobiles. Designed to fit our compression tester W80579 and others with a 14mm x 1.25 male thread, providing compatibility with a range of testers.
- Product Dimensions: 6 x 3 x 0.7 inches
📦Package Inclusion:
- 1 x 10mm x 1.0 adapter
- 1 x 12mm x 1.25 adapter
- 1 x 18mm x 1.5 adapter
- 1 x 16mm x 1.5 Ford adapter
Customer Reviews
Got these to do some testing and they worked well. They were for an old testing unit handed down from my father.
Perfect addition of adapters for my OTC compression tester. I mostly needed the Ford 5.4L 3V adapter. The parts are machined properly and work well.
Purchased these to add to my Mityvac and Lang leak down and compression testers. So far they have held up with no problems.
Needed a 10 mm adapter and nobody locally had one. Prime had it to me faster than local suppliers.
Great compatibility with older testers. Threads were smooth and fit tight. Glad I found this.