Longacre 73025 Engine Compression Tester Easy-to-use 14 mm Plug Adapter 0-300psi

Racing engines live on the ragged edge of performance, and a sudden, unexplained drop in horsepower is every driver's worst nightmare. Before pulling the motor to look for a blown head gasket, burnt valve, or failing piston rings, professional mechanics rely on accurate compression readings. The Longacre 73025 Engine Compression Tester is the fastest, most reliable way to perform this crucial internal health check right in the pit lane.

Built with Longacre's signature track-ready durability, this specific tester features a rigid, straight-stem design with a standard 14mm spark plug thread, making it perfectly suited for most modern domestic V8 racing cylinder heads and high-performance sport-compact blocks. A heavy-duty, high-contrast analog gauge face makes it incredibly easy to spot cylinder-to-cylinder pressure inconsistencies, while the built-in push-button relief valve allows for rapid, back-to-back testing without removing the tool from the plug hole.

Key Features

• Direct 14mm Fitment: Machined with precision 14mm threads, ensuring a tight, leak-free seal in standard racing cylinder heads for absolute accuracy during cranking pressure tests.

• Instant Pressure Relief: Features an integrated push-button release valve directly below the gauge head, allowing mechanics to instantly bleed off pressure and reset the needle to zero between cylinder checks.

• High-Visibility Analog Dial: Equipped with a large, crisp analog display that provides highly accurate, easy-to-read PSI measurements, ensuring mechanics can quickly identify "weak" cylinders even in a poorly lit garage.

• Track-Tested Durability: Built to survive the harsh environment of a busy chassis shop or a crowded race trailer, featuring a rugged housing designed to withstand greasy hands and accidental drops.

Specifications

• Product Type: Engine Compression Tester

• Thread / Adapter Size: 14mm

• Display Style: Analog Dial Gauge

• Features: Built-in Pressure Bleed Valve

• Application: Engine Diagnostic & Leak Down Testing

• Brand: Longacre Racing Products