Denso 234-5173 Air / Fuel Ratio Sensor - Upstream or Upstream Right
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-5173 Air / Fuel Ratio Sensor - Upstream or Upstream Right

Brand Denso 234-5173
Position Upstream
Connector Gender Male
Grade Type Regular
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 5
Wiring Harness Length 14.65
Product line OE Style
Fits Ford and Lincoln · 73 vehicles

OE style replacement. Precision-built for exact replacement and a first-time fit.

Heated sensor. Helps maintain accurate air-fuel ratio monitoring.

Specific fit. Made for a direct, exact replacement application.

Cross-references Bosch 17487, Ford E1GZ9F472C and Ford FR3Z9F472A for the same application. See all 7.

$78.82Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $78.82
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Air / Fuel Ratio Sensor options

Denso OE Style Air/Fuel Ratio Sensor

Denso 234-5173 is an OE Style heated air/fuel ratio sensor built for direct replacement on select Ford and Lincoln applications. It is designed for specific fitment, with a 5-wire male connector and a 14.65-inch wiring harness for a factory-style installation.

Key Features

  • Heated air/fuel ratio sensor for upstream exhaust locations
  • Specific fitment for direct replacement on listed vehicles
  • 5-wire design with male connector
  • 14.65-inch wiring harness length
  • 0.708 thread diameter
  • OE Style construction for factory-matched replacement

Product Details

This Denso air/fuel ratio sensor is manufactured and tested to OE standards for accurate replacement fitment and consistent electrical connection. The OE Style line focuses on factory-matched dimensions and connector design, helping simplify replacement on vehicles such as the Ford Edge, Ford Mustang, Ford F-150, Lincoln Nautilus, and Lincoln MKZ. Part number 234-5173 is a direct-fit option for upstream sensor locations where precise air-fuel monitoring is required.

This part cross-references Bosch 17487 for the same application.

What It Helps Address

  • Check engine light related to upstream air/fuel ratio sensor faults
  • Rough idle caused by incorrect air-fuel feedback
  • Fuel trim issues from inaccurate sensor readings
  • Delayed or inconsistent sensor response during closed-loop operation
  • Replacement needs after sensor aging, contamination, or electrical failure

Installation Notes

Verify the upstream position and connector style before ordering. Confirm thread diameter, wire count, and harness length against the original sensor on your Ford Edge, Ford Mustang, or Lincoln Nautilus application. Use the vehicle’s service procedure for removal and installation, and inspect the harness routing and connector lock before final assembly.

Quality Assurance

Denso manufactures this OE Style sensor to strict original-equipment standards and tests each component for replacement accuracy and first-time fit. Part number 234-5173 is built for the listed Ford and Lincoln applications with factory-style dimensions and connector configuration.

Related reading

This part fits 73 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelFuel TypePositionNotes
2024FordEdge—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2024FordMustang—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2023FordEdge—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2023FordMustang—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2023LincolnNautilus—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2022FordEdge—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2022FordMustang—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2022LincolnNautilus—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2021FordEdge—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2021FordMustang—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2021LincolnNautilus—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2020FordEdge—UpstreamOE Style
2020FordF-150—Upstream RightOE Style
2020FordFusionGASUpstreamOE Style
2020FordMustang—UpstreamOE Style
2020LincolnContinental—UpstreamOE Style
2020LincolnMKZGASUpstreamOE Style
2020LincolnNautilus—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2019FordEdge—UpstreamOE Style
2019FordEscape—UpstreamOE Style
2019FordExplorer—UpstreamOE Style
2019FordF-150—Upstream RightOE Style
2019FordF-250 Super Duty—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2019FordF-350 Super Duty—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2019FordFusion—UpstreamOE Style
2019FordFusionGASUpstreamOE Style
2019FordMustang—UpstreamOE Style
2019LincolnContinental—UpstreamOE Style
2019LincolnMKC—UpstreamOE Style
2019LincolnMKZ—UpstreamOE Style
2019LincolnMKZGASUpstreamOE Style
2019LincolnNautilus—UpstreamOE Style
2018FordEdge—UpstreamOE Style
2018FordEscape—UpstreamOE Style
2018FordExplorer—UpstreamOE Style
2018FordF-150—Upstream RightOE Style
2018FordF-250 Super Duty—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2018FordF-350 Super Duty—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2018FordFocus—UpstreamOE Style
2018FordFusion—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2018FordMustang—UpstreamOE Style
2018LincolnContinental—UpstreamOE Style
2018LincolnMKC—UpstreamOE Style
2018LincolnMKX—UpstreamOE Style
2018LincolnMKZ—UpstreamOE Style
2018LincolnMKZGASUpstreamOE Style
2017FordEdge—UpstreamOE Style
2017FordEscape—UpstreamOE Style
2017FordExplorer—UpstreamOE Style
2017FordF-150—Upstream RightOE Style
2017FordF-250 Super Duty—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2017FordF-350 Super Duty—UpstreamO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2017FordFocus—UpstreamOE Style
2017FordFusion—UpstreamOE Style
2017FordFusionGASUpstreamOE Style
2017FordMustang—UpstreamOE Style
2017FordTaurus—UpstreamOE Style
2017LincolnContinental—UpstreamOE Style
2017LincolnMKC—UpstreamOE Style
2017LincolnMKX—UpstreamOE Style
2017LincolnMKZ—UpstreamOE Style
2017LincolnMKZGASUpstreamOE Style
2016FordEdge—UpstreamOE Style
2016FordExplorer—UpstreamOE Style
2016FordF-150—Upstream RightOE Style
2016FordFocus—UpstreamOE Style
2016FordMustang—UpstreamOE Style
2016FordTaurus—UpstreamOE Style
2016LincolnMKT—UpstreamOE Style
2016LincolnMKX—UpstreamOE Style
2015FordEdge—UpstreamOE Style
2015FordF-150—Upstream RightOE Style
2015FordMustang—UpstreamOE Style
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 17487Ford — E1GZ9F472CFord — FR3Z9F472AFord — FV4Z9F472ANTK — 24334Walker Products — 250-25025Walker Products — 350-35060