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NGK 21516 Oxygen Sensor Heated Narrow-Band O2 Sensor M18x1.5 4-Wire

(Chevrolet Silverado 1500 2000-02, Suburban 1500 2000-02, Tahoe 2000-02, S10 2002-04, Impala 2001-05, Malibu 2001-03, Blazer 2002-05 + 30 more models)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

21516
4 reviews
Sale Price

$46.36

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The NGK 21516 oxygen sensor (also called an O2 sensor or lambda sensor) is a direct-fit, heated, narrow-band replacement sensor. It monitors oxygen in the exhaust so the engine computer can keep the air-fuel mixture correct for efficient combustion and low emissions.

Key Features:

  • Switching zirconia, narrow-band sensor design with an integrated heater
  • Dual-coated platinum interface and a thinner ceramic element for fast light-off and quick response
  • Protective coating and a corrosion-resistant housing that shields the ceramic element from silicone and lead poisoning
  • Porous PTFE filter that lets atmospheric oxygen reach the sensor while keeping out water and engine contaminants
  • Built to OE standards with close tolerances to help with emissions and smog test compliance

Specifications:

  • Thread size: M18 x 1.5 (metric)
  • Hex / wrench size: 7/8 in (22 mm)
  • Mounting type: threaded
  • Wiring harness length: 16.5 in (420 mm)
  • Number of wires: 4
  • Terminals: 4 blade terminals, male terminal gender
  • Connector: square, female
  • Heated: yes
  • Fit type: specific fit, not universal

The NGK 21516 is a standard replacement sensor that helps restore fuel efficiency and engine performance, and it clears a failing sensor's check engine light fault.

Products specifications

Fits

Chevrolet Silverado 1500 2000-02, Suburban 1500 2000-02, Tahoe 2000-02, S10 2002-04, Impala 2001-05, Malibu 2001-03, Blazer 2002-05, Monte Carlo 2001-05, Avalanche 1500 2002, Astro 2000-02, Silverado 2500 2000-02, Venture 2001-05 + 25 more models

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