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DENSO 234-5178 Air/Fuel Ratio Sensor Heated Direct Fit - 4-Wire

(1964-1968 Ford Mustang; 1975-1976 Chevrolet Corvette Stingray; 2014-2017 Subaru Forester; 2015-2016 Subaru WRX; 1982-1984 Buick Regal + 2 more models)

Part of: DENSO Air-Fuel Ratio Sensor Heated Direct Fit

Other options in this family: DENSO 234-5113 DENSO 234-9042 DENSO 234-9009 DENSO 234-9123 DENSO 234-5010

Manufacturer

Picture for manufacturer DENSO

Part Number

234-5178
20 reviews
Sale Price

$135.86

In Stock (10+)

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The DENSO 234-5178 is a precision-engineered air/fuel ratio sensor designed to monitor exhaust gas composition and optimize engine performance. This OE-quality sensor delivers accurate readings to your vehicle's engine control module, enabling precise fuel mixture adjustments for improved fuel economy, reduced emissions, and optimal engine operation.

Key Features:

  • 4-wire heated design for faster sensor activation and accurate readings
  • Direct-fit replacement engineered to OEM specifications
  • 11.1-inch wire length for proper installation reach
  • Manufactured and tested to strict OE standards for reliable performance
  • Precision-built components ensure exact fitment and first-time installation
  • Advanced sensing element provides accurate air/fuel ratio detection

DENSO's air/fuel ratio sensors are built with the same quality and precision as original equipment, ensuring dependable operation and long service life. The heated sensor design reduces warm-up time, allowing for quicker closed-loop operation and more efficient emissions control from cold starts.

Products specifications

Fits

1964-1968 Ford Mustang; 1975-1976 Chevrolet Corvette Stingray; 2014-2017 Subaru Forester; 2015-2016 Subaru WRX; 1982-1984 Buick Regal; 1987-1999 Pontiac Bonneville; 1970-1972 Plymouth Duster 340/Base

Sensor Type

Heated

Connector Gender

FEMALE

Grade Type

Regular

Universal Or Specific Fit

Specific

Wire Quantity

5

Wiring Harness Length

11.10

Thread Diameter

0.708

Great Service

quick web site . great price

Good price.

Easy to navigate three and buy what you need

Really good shipping, easy to use site, good products

Fast delivery.

simple and easy!

Surprisingly fast service

Very easy & quick to find & order!

Very good, competitive pricing; In stock and ready to serve; Bought the exact item with another website but was cancelled due to lack of trust for a false price and not in stock

fast and easy

No

very quick service

great price and easy to order

Excellent site easy to use

fast shipping. shipped the correct item. thanks autoplicity. hope to be buying again soon

Great prices easy to pay with paypal express

The ordering process went really smoothly. Got my ordering info e-mailed smartly and was able to track the order easily. Looking forward to using my item as soon as it gets here!

Good

This caliper paint green and cool.

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