4 Piece Compression Tester Adapter Kit With 10mm-1.0, 12mm-1.25, 16mm-1.5, 18mm-1.5 Thread Sizes For Gas Engines And Motorcycles, All In One Spark Plug Tester Adapters For Quick Diagnostics

4-Piece Spark Plug Adapter Kit for Compression Testing
✔️ 4 adapter sizes: 10-1.0, 12-1.25, 16-1.5, 18-1.5

This kit includes four spark plug adapters to fit various thread sizes, enabling quick diagnostics with a compression tester. It’s commonly used on gas engines, motorcycles, snowmobiles, lawn equipment, and other small engines where spark plug threads vary. Note: compatible with compression testers that have a 14mm x 1.25 male thread.

✅ 10mm-1.0 adapter size (1.26 x 0.71 x 0.71 in)
✅ 12mm-1.25 adapter size (1.26 x 0.71 x 0.71 in)
✅ 16mm-1.5 adapter size (2.03 x 0.71 x 0.71 in)
✅ 18mm-1.5 adapter size (1.26 x 0.94 x 0.94 in)
✅ Brass with rubber O-rings for airtight sealing
✅ Includes 4 adapters, ready for quick swap

💡 What is a spark plug adapter kit used for in engine compression testing? A handy set that lets you connect a compression tester to engines with multiple spark plug threads for accurate readings.

- Covers common spark plug thread sizes for compression testing - Brass adapters with O-rings seal tightly for consistency - Compatible with 14mm x 1.25 male-thread testers, including popular W80579 models - Great for petrol engines, motorcycles, lawn gear, and small machines