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NGK 21561 NTK OE Identical Oxygen Sensor 4-Wire Heated 18mm

(Chevrolet Colorado 2006-11, Trailblazer 2006-09; Hummer H3 2006-10, H3T 2009-10; GMC Canyon 2006-11, Envoy 2006-09; Buick Regal 2011 + 9 more models)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

21561
6 reviews
Sale Price

$47.27

1 left at this price

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Usually delivered within 2 days

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Product Details

The NGK (NTK) 21561 oxygen sensor, also called an O2 sensor or lambda sensor, is an OE identical replacement. It monitors the oxygen content of the exhaust and sends that signal to the engine computer. The computer uses it to keep the air-fuel ratio correct, which supports fuel economy, engine performance and low emissions.

Key Features:

  • Dual-coated platinum element for longer life and fast response time
  • Heats up quickly to help improve fuel economy and reduce emissions
  • OE-specified connector and attaching hardware for easy installation
  • Heated sensor design with 4 wires
  • Threaded mounting with an 18mm thread diameter
  • 22mm (7/8 in.) hex size
  • Wire length of 495mm (19.5 in.)
  • 60-day warranty

NTK is a leading original equipment supplier of oxygen sensors. The 21561 is built to the same fit, form and function as the original sensor.

Cross-references: ACDelco 213-3207, 213-3532, 213-3539, 213-4682; Bosch 15131, 15153, 15164; Delphi ES20355; DENSO 234-4331, 234-4334, 234-4673; GM 12588036, 12592591, 12592592; Spectra Premium OS5502.

Products specifications

Fits

Chevrolet Colorado 2006-11, Trailblazer 2006-09; Hummer H3 2006-10, H3T 2009-10; GMC Canyon 2006-11, Envoy 2006-09; Buick Regal 2011, LaCrosse 2010-11, Rainier 2006-07; Cadillac STS 2006-09; Saab 9-7x 2006-09, 95 2011 + 5 more models

Easy to find and easy to buy. . .

Excellent selection, great prices, and fast shipping. I am very satisfied.

Product was as described, shipping was fast, and communication was excellent. Plus I saved $$. Thanks Autoplicity! I'll be a repeat buyer and referral source.

After seeing that Autoplicity was in good standing with the BBB and had favourable reviews reported elsewhere I placed an order on a Sunday evening. On Monday morning I already had a confirmation email and order number. On Tuesday I was notified that my order had shipped. Their price of $477 on the part I ordered was about $30 cheaper than Summit Racing, who I usually do business with, and the cost of shipping and handling was only a few dollars more. I haven't recieved the part yet but have no reason to think I won't be totally satisfied with the transaction.

Best price around, very fast shipping and great service! I will buy from them again!

"Customer service was very helpful, very good prices. On its way the next day."

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