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DENSO 234-4129 Heated Oxygen Sensor Direct Fit Wire - 4-Wire 9.84

(2015-2018 Ford Mustang; 1977 Chevrolet Corvette; 1999-2000 Chevrolet Tracker; 2010-2013 Mazda 3; 2015-2021 Mercedes-Benz C300 + 3 more models)

Part of: DENSO Oxygen Sensor Heated Direct Fit Wire

Other options in this family: DENSO 234-4265 DENSO 234-8051 DENSO 234-4623 DENSO 234-4163 DENSO 234-4617

Manufacturer

Picture for manufacturer DENSO

Part Number

234-4129
13 reviews
Sale Price

$75.30

4 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The DENSO 234-4129 is a 4-wire, direct-fit, heated oxygen sensor featuring a 9.84-inch wire lead. Manufactured to strict OE standards, this sensor is precision-engineered to deliver exact replacement fit and reliable performance from the first installation.

Key Features:

  • OE-Grade Construction: Built and tested to original equipment manufacturer specifications for accurate, dependable operation
  • Direct Fit Design: Engineered as a precise drop-in replacement — no modifications required
  • Heated 4-Wire Design: Integrated heater element allows the sensor to reach optimal operating temperature faster, reducing emissions and improving fuel efficiency during cold starts
  • Aluminum Oxide Trap Layer: DENSO's exclusive protective trap layer shields the ceramic sensing element from silicone and lead contamination, extending sensor life and maintaining accuracy
  • 9.84-Inch Wire Length: Provides adequate reach for proper routing and connection to the factory wiring harness
  • Improved Engine Performance: Accurate oxygen readings help the ECU maintain the ideal air/fuel ratio for optimal combustion efficiency
  • Enhanced Fuel Efficiency: Precise sensor feedback supports proper fuel trim adjustments, reducing unnecessary fuel consumption

DENSO is a world-leading OE supplier, and the 234-4129 reflects that heritage — delivering a dependable, long-lasting oxygen sensor that restores proper exhaust feedback and emissions system function.

Products specifications

Fits

2015-2018 Ford Mustang; 1977 Chevrolet Corvette; 1999-2000 Chevrolet Tracker; 2010-2013 Mazda 3; 2015-2021 Mercedes-Benz C300; 2014-2019 Mercedes-Benz CLA45 AMG; 2015 Mercedes-Benz C400; 2013-2018 Bentley Continental

Sensor Type

Heated

Connector Gender

Male

Universal Or Specific Fit

Specific

Wire Quantity

4

Mounting Type

Threaded

Wiring Harness Length

9.84

Thread Diameter

0.708

Quick n easy

Pretty easy. A+

Very easy to use and had exactly what I needed!!!!

Cool

Turns out that the part ordered does not fit, which is not any fault of your company, but of the manufacture who gave me the wrong part number. Find it interesting that a manufacturer of parts can not match parts to my van, even after several phone calls to confirm before ordering.

Lowest price and super fast delivery Autoplicity ROCKS!!

Cheapest price I could find. Uses google checkout, which I like. Fast shipping, sends tracking number fast.<br>Limited shipping options, but the thing I ordered was an odd size.<br>

Great Communication and instant shipping. Well done!

Great Prices

Phone service was quick and personable wanting to solve my problem immediately. The weight of my package was wrong causing shipping to be $300 to ship a gas can but was fixed right away. Prices were great! I would purchase through them again!

Extremely satisfied with my transaction with Autoplicity. Item was shipped out almost immediately after I paid. Customer support responded very quickly and answered all of my questions in a very professional manner. Will definitely be shopping here in the future.

Low prices. Tons of products.

All I can say is Wow! Great service, prices and easy returns. I got the wrong size helmet (my fault), they paid for the return shipping and refunded my money. I simply reordered and got what I wanted. Fantastic!

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