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Dorman 645-668 Oxygen Sensor Pigtail Connector 4-Wire

(Chevrolet Silverado 1500 1999-2004, 2006, 2008-11, Silverado 1500 HD 2001-03, Suburban 1500 2000-04, 2007, Camaro 1997-2002 + 114 more models)

Manufacturer

Picture for manufacturer Dorman

Part Number

645-668
12 reviews
Sale Price

$39.17

In Stock (10+)

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dorman 645-668 is a versatile electrical pigtail connector designed for oxygen sensor repairs and custom installations. This professional-grade connector features a female terminal configuration with four wires, making it suitable for a variety of automotive electrical repair applications.

Key Features:

  • Four-wire design with 20-gauge wiring for reliable electrical connections
  • Weatherproof terminals and seals protect against moisture and corrosion
  • Locking tab mechanism ensures a secure, quick-disconnect connection
  • 16.14-inch wire harness length provides installation flexibility
  • Plastic connector body with butt-type terminals
  • Female terminal gender for proper mating with oxygen sensors

This pigtail connector is engineered for a clean, professional appearance when installed and allows circuits to be quickly disconnected for service or repairs. The durable construction with weatherproof seals makes it ideal for underhood applications where exposure to heat, moisture, and contaminants is common.

Cross-Reference Part Numbers: ACDelco PT2054, Airtex 1P1586, BWD PT5789, Echlin EC292, GM 88988598, Standard Motor Products S-912, Wells 954

Products specifications

Fits

Chevrolet Silverado 1500 1999-2004, 2006, 2008-11, Silverado 1500 HD 2001-03, Suburban 1500 2000-04, 2007, Camaro 1997-2002, Silverado 2500 HD 2001-05, Tahoe 1996-2004, 2006-07, S10 1996-2004, Impala 2000-05, Malibu 1997-2010 + 109 more models

Feature - Benefit 1

No special tools required for installation

Feature - Benefit 2

Easy to install

Feature - Benefit 3

Manufactured to strict engineering quality standards

Feature - Benefit 4

Direct Replacement Connector

Connector Material

Plastic

Wire Quantity

4

great company to buy from. called them up to find an AFR gauge set. while the one i had my eye one was no longer available, they worked with me to find another one that fit my application and visual requirements. thanks autoplicity!

Great Price fast shipping, I can't complain.

No bad. Could indicate line size, like 5/16 in. I had to lookup Dorman's P/N to find the size. Tks

great

Great price and selection. Good communication after the sale. Fast shipping. Will shop here again for my next purchase.

Best price fast shipping. will deffinitly order again

Cheapest price, manufacturer direct

They have great prices! The same item I purchased from autoplicity is on summit racing for triple the price! This is my first order and I am very happy, will order from again!

Quick shipping, nice easy to use web site, and the lowest price with shipping around.. will use again..

So far, so good.

Saved me $150 over Mopar brand fan assembly for my 2005 300C 5.7 HEMI. Delivery was extremely quick, the part was a perfect fit, and working as expected. Thank you!!!

Fast shipping and good prices. I would shop this site again.

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