Dorman 645-321 Catalyst Monitor Sensor Connector Pigtail 11-20 Ford F-150

In stock
SKU: 591|645321
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price $38.13
Select your vehicle at the top of the page to check fitment.
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|645321
  • Barcode 194883395442

Make better electrical repairs and accessory installations with this versatile and durable pigtail connector. It allows quick circuit disconnections for service, and is engineered for reliable performance.

  • Professional appearance - this electrical pigtail is designed for a clean, professional look when installed
  • Convenient solution - this pigtail connector allows the circuit to be quickly disconnected for service or occasional use
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience

Vehicle Fitment

Year Make Model Position Notes
2020 Ford Edge 4 Cavity
2012-2014 Ford Edge 4 Cavity
2020 Ford Escape 4 Cavity; 2.5L L4
2020 Ford Escape 4 Cavity; 2.0L L4
2013-2018 Ford Escape 4 Cavity; 2.5L L4
2013-2018 Ford Escape 4 Cavity; 2.0L L4
2011-2012 Ford Escape 4 Cavity
2020 Ford Expedition 4 Cavity; 5.4L V8
2012-2014 Ford Expedition 4 Cavity; 5.4L V8
2020 Ford Explorer 4 Cavity; 3.5L V6
2016-2018 Ford Explorer 4 Cavity; 3.5L V6
2013-2015 Ford Explorer 4 Cavity; 2.0L L4
2011-2012 Ford Explorer 4 Cavity
2019-2020 Ford F-150 4 Cavity; 5.0L V8
2019-2020 Ford F-150 4 Cavity; 2.7L V6
2019-2020 Ford F-150 4 Cavity
2015-2017 Ford F-150 4 Cavity; 5.0L V8
2015-2017 Ford F-150 4 Cavity; 2.7L V6
2011-2017 Ford F-150 4 Cavity; 3.5L V6
2011-2014 Ford F-150 4 Cavity; 3.7L V6
2020 Ford F-250 Super Duty 4 Cavity; 6.2L V8
2012-2016 Ford F-250 Super Duty 4 Cavity; 6.2L V8
2020 Ford F-350 Super Duty 4 Cavity; 6.2L V8
2012-2016 Ford F-350 Super Duty 4 Cavity; 6.2L V8
2020 Ford F-450 Super Duty 4 Cavity; 6.8L V10
2012-2016 Ford F-450 Super Duty 4 Cavity; 6.8L V10
2020 Ford F-550 Super Duty 4 Cavity; 6.8L V10
2012-2016 Ford F-550 Super Duty 4 Cavity; 6.8L V10
2014-2017 Ford Fiesta 4 Cavity; 1.0L L3
2017-2018 Ford Flex 4 Cavity; 3.5L V6
2011-2016 Ford Flex 4 Cavity
2012-2017 Ford Focus 4 Cavity; 2.0L L4
2020 Ford Fusion 4 Cavity; 2.0L L4
2016 Ford Fusion 4 Cavity; 2.0L L4
2013-2014 Ford Fusion 4 Cavity; 2.0L L4
2013-2014 Ford Fusion 4 Cavity; 1.6L L4
2012 Ford Fusion 4 Cavity; 3.5L V6
2011 Ford Fusion 4 Cavity; 3.0L V6
2011 Ford Fusion 4 Cavity; 2.5L L4
2020 Ford Mustang 4 Cavity; 5.2L V8
2018 Ford Mustang 4 Cavity; 5.2L V8
2016 Ford Mustang 4 Cavity; 5.2L V8
2015-2017 Ford Mustang 4 Cavity; 3.7L V6
2013-2018 Ford Police Interceptor Sedan 4 Cavity; 3.5L V6
2020 Ford Police Interceptor Utility 4 Cavity; 3.5L V6
2017-2018 Ford Police Interceptor Utility 4 Cavity; 3.5L V6
2014-2015 Ford Police Interceptor Utility 4 Cavity; 3.5L V6
2013-2018 Ford Taurus 4 Cavity; 3.5L V6
2011-2012 Ford Taurus 4 Cavity
2020 Ford Transit Connect 4 Cavity; 2.5L L4
2014-2016 Ford Transit Connect 4 Cavity; 2.5L L4
2020 Ford Transit-150 4 Cavity; 3.7L V6
2016 Ford Transit-150 4 Cavity; 3.7L V6
2020 Ford Transit-250 4 Cavity; 3.7L V6
2016 Ford Transit-250 4 Cavity; 3.7L V6
2020 Ford Transit-350 HD 4 Cavity; 3.7L V6
2015-2016 Ford Transit-350 HD 4 Cavity; 3.7L V6
2019 Lincoln MKC 4 Cavity
2015-2016 Lincoln MKC 4 Cavity
2013-2015 Lincoln MKS 4 Cavity; 3.7L V6
2011-2012 Lincoln MKS 4 Cavity
2011-2019 Lincoln MKT 4 Cavity
2012-2015 Lincoln MKX 4 Cavity
2019 Lincoln MKZ 4 Cavity; 2.0L L4
2013-2017 Lincoln MKZ 4 Cavity; 2.0L L4
2013-2016 Lincoln MKZ 4 Cavity; 3.7L V6
2012 Lincoln MKZ 4 Cavity; 3.5L V6
2011 Lincoln MKZ 4 Cavity; 2.5L L4
2019 Lincoln Navigator 4 Cavity; 5.4L V8
2012-2014 Lincoln Navigator 4 Cavity; 5.4L V8
2011 Mercury Mariner 4 Cavity
2011 Mercury Milan 4 Cavity; 2.5L L4
2011 Mercury Milan 4 Cavity; 3.0L V6

Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.

Specifications

Brand Dorman
Part Number 645-321
UPC 194883395442
Color White; Black; Gray; Orange; Silver
Terminal Type Pin
Shape Rectangle
Terminal Quantity 4
Terminal Gender Male
Wire Quantity 4
Gender Male
Wiring Harness Length 13.858 in.
Wire Gauge Measurement 16
Package Contents 1 Pigtail; 4 Butt Connectors; 4 Heat Shrink Tubing
Country of Origin Vietnam
Warranty Limited Lifetime

OE & Interchange Numbers

CU2Z14S411ZB Ford (OE)
WPT1570 Interchange