Bosch 13598 Premium OE Fitment Oxygen Sensor 4-Wire Heated

The Bosch 13598 is a premium, OE-replacement oxygen sensor (O2 sensor) engineered for precise air-fuel mixture monitoring and long-lasting performance. As the original inventor of the automotive oxygen sensor, Bosch brings decades of manufacturing expertise to every unit — delivering the reliability and accuracy your engine's emission control system demands.

This heated, 4-wire upstream sensor features a patented dual-layer filtration system: a catalytically activated fine particle filter prevents exhaust contamination and ensures accurate voltage signals to the ECU, while a second filter layer doubles that protection to further extend sensor service life. The premium ceramic sensing element incorporates Zirconium or Titania with Yttrium for superior resistance to mechanical and thermal shock.

Key Features:

• 4-wire, heated design — reaches operating temperature quickly for optimum performance from cold starts
• 29.9-inch wire length for flexible routing and easy installation
• Patented dual fine-particle filter — catalytically activated primary filter plus secondary protection against exhaust gas contamination
• Premium ceramic element — Zirconium or Titania with Yttrium construction for thermal and mechanical shock resistance
• OE-style silicone boots — snug-fitting for proper fit, function, and appearance
• Direct plug-in installation — true OE-matching connector, no cutting or splicing required; threads pre-coated with anti-seize compound
• 100% factory tested — every sensor is rigorously tested to meet Bosch's strict quality and performance standards
• Helps prevent premature catalytic converter failure
• Sold individually

Specifications:

• Type: Heated oxygen sensor (upstream / before catalytic converter)
• Wires: 4-wire
• Wire Length: 29.9 inches
• Sensor Technology: Zirconium or Titania ceramic with Yttrium
• Product Fit: OE replacement

Replacing a worn or sluggish O2 sensor with the Bosch 13598 helps restore proper air-fuel ratios, improve fuel economy, reduce harmful exhaust emissions, and protect your catalytic converter from damage caused by an inaccurate sensor signal.