TU-21 Cylinder Leak Detector Pressure Meter
K2 Industries
TU-21 Cylinder Leak Detector Pressure Meter
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
TU-21 Cylinder Leak Detector Pressure Meter
Diagnose combustion leaks in seconds with this cylinder pressure tester. The TU-21 reads compression loss across all cylinders without pulling heads or running compression tests the old way. Built for DIY techs and shop floors alike.
Key Features
- Pressure gauge readout - Spot leaking rings, valves, or gaskets without teardown
- Complete adapter kit - Threads into spark plug holes for immediate testing
- Fast diagnosis - Cuts troubleshooting time on rough idle, misfire, and compression issues
Specs
- Tool type: Compression leak detector with gauge
- Configuration: Cylinder pressure tester with adapter set
- Condition: New
What's Included
- TU-21 pressure meter unit
- Spark plug adapter set
Frequently Asked Questions
Do I need any other tools to use this tester?
You'll need basic hand tools to remove spark plugs and access the plug holes. The meter and adapters handle the rest — no compression pump or vacuum lines required.
Can this detect which cylinder is leaking?
Yes. You test each cylinder individually by threading the adapter into the plug hole. A pressure reading tells you which cylinder is losing compression and how much.
Does this work on all engines?
Works on any engine you can access the spark plug holes on. Adapter threads are standard — confirm fit before testing on unusual or antique setups.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-12699-UNV-006-TSARK |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information