Compression & Pressure Testers - Harbor Freight Tools

Harbor Freight compression & pressure testers provide superior detection for most cars, and trucks. Durable, heavy-duty construction. Accurate and easy-to-read.

This MADDOX® test kit is designed to quickly and accurately check engine and transmission oil pressure on most cars and light trucks. A wide selection

Engine and Transmission Oil Pressure Test Kit

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This radiator pressure tester helps find internal and external leaks in your cooling system. Features include a thumb-operated relief valve for quick

Radiator Pressure Tester Kit

Deluxe Fuel Injection Service Kit

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The MADDOX® Diesel Compression Test Kit includes specialized adapters for testing diesel truck, car, and tractor engines. This kit is ideal for

Diesel Compression Test Kit

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Deep Pressure Compression Belts, Anxiety and Stress Reducers, Deep Pressure Compression Belts from Therapy Shoppe Deep Pressure Compression Belts, Sensory Integration Products

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ATS PRO DIFFERENTIAL PRESSURE TESTER WITH MASTER ORIFICE from