Description
US PRO Tools 22mm 12-Point Flexi-Head Oxygen (Lambda) Sensor Wrench (Model 5516)
Product Overview
The US PRO Tools (Model 5516) is a professional-grade 22mm 12-point flexible-head oxygen sensor socket engineered for removing and installing stubborn, deep-set lambda sensors on modern automotive exhaust systems. Featuring a hinged 180-degree flexible head and a specialized side-slot wiring clearance profile, this robust socket allows technicians to navigate tightly packed exhaust manifolds, catalytic converters, and heat shields without damaging the sensor’s wiring harness.
Key Features & Specifications
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Specialized 22mm 12-Point Profile: Precision-machined bi-hex internal geometry provides increased contact points on standard oxygen sensor hex nuts, reducing the risk of rounding off rusted fittings.
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Side-Slot Wiring Cutout: Integrated lateral wall slot allows the socket to slip cleanly over the sensor’s attached electrical wiring harness and connector plug without pinching or cutting wires.
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180-Degree Flexible Head: Hinged swivel design enables the drive handle to pivot smoothly, giving technicians essential clearance around chassis crossmembers, turbochargers, and heat shields.
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Standard 3/8-Inch & 1/2-Inch Drive Options: Dual-drive compatibility allows use with standard ratchets, breaker bars, or torque wrenches for high-leverage loosening.
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Heavy-Duty Chrome Molybdenum Steel: Drop-forged from impact-grade alloy steel, heat-treated, and finished with a corrosion-resistant black phosphate coating to withstand high exhaust-heat environments.
Core Workshop & Automotive Applications
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Exhaust Emissions Servicing: Removing and replacing seized pre-catalytic and post-catalytic oxygen (lambda) sensors during emission fault diagnosis or exhaust replacement.
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Restricted Engine Bay Maintenance: Accessing awkwardly angled exhaust sensors buried deep behind subframes, turbo housings, and intake plenums.
What’s in the Box
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1x 22mm 12-Point Flexi-Head Oxygen Sensor Wrench (Model 5516)
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Product Documentation
