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Harbor Freight Tools

Compression & Pressure Testers

15 Items

Compression Test Kits

Oil Pressure Testers

Fuel Pump Testers

Fuel Injection Testers

Cooling System Testers

Leak Detectors

Radiator Pressure Test Kits

Compression & pressure testers from Harbor Freight include everything you need for diagnosing overall engine health. Durable construction. Superior detection.

14 Function Digital Multimeter with Sound Level and

14 Function Digital Multimeter with Sound Level and

Combustion Leak Detector Fluid

Combustion Leak Detector Fluid

Computer Safe Automotive Logic Probe

Computer Safe Automotive Logic Probe

DM1000 Electricians HVAC Contractor TRMS Multimeter

DM1000 Electricians HVAC Contractor TRMS Multimeter