HomeBrake > SensorsDelphi SS21578 ABS Wheel Speed Sensor - Front
Part #: SS21578

Delphi SS21578 ABS Wheel Speed Sensor - Front

Front
⚙️ 10 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, Wrangler
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Delphi ABS Wheel Speed Sensor SS21578 for Jeep Wrangler

Delphi SS21578 is a front ABS wheel speed sensor for 1997-2006 Jeep Wrangler applications. It provides OE-standard signal accuracy for the anti-lock brake system, helping the vehicle control module read wheel speed data correctly.

Key Features

  • Front ABS wheel speed sensor for Jeep Wrangler
  • Standard replacement part number SS21578
  • 1740 mm wiring harness included
  • 1 black oval male connector with 2 terminals
  • Terminal type: pin
  • Package includes the ABS wheel speed sensor and instruction sheet
  • Mounting hardware not included

Detailed Description

Delphi SS21578 is built for front-wheel ABS monitoring on 1997-2006 Jeep Wrangler models. Delphi validates its sensors to OE standards and calibrates them for accurate readings, which supports consistent wheel speed input for the braking system. This part cross-references Standard Ignition ALS74 for the same application.

For buyers searching for a front ABS wheel speed sensor for Jeep Wrangler, Delphi SS21578 offers a direct-fit replacement option with the correct connector style, harness length, and terminal configuration. It is a practical choice when replacing a worn or failed sensor on the front axle.

What It Helps Address

  • ABS warning light caused by a failed front wheel speed sensor
  • Intermittent or inaccurate wheel speed signal
  • ABS system faults related to sensor wiring or connector wear
  • Brake control issues tied to incorrect front wheel data
  • Diagnostic trouble codes associated with front ABS sensor performance

Installation Notes and Tips

Verify front position, connector shape, and harness routing before installation. Inspect the tone ring, hub area, and wiring path for damage or corrosion, since those conditions can affect sensor readings. Confirm fitment for your specific 1997-2006 Jeep Wrangler before ordering. Part number SS21578 is also commonly searched as an ABS wheel speed sensor replacement for Jeep Wrangler front applications.

Quality Assurance

Delphi backs this sensor with OE development and product validation methods. Each sensor is tested and calibrated to OE standards to support accurate readings and reduce repeat repairs.

BrandDelphi
Part NumberSS21578
Wiring Harness Length1740
Connector ColorBlack
Terminal TypePin
Mounting Hardware IncludedNo
Grade TypeStandard replacement
Connector Quantity1
Connector ShapeOval
Terminal Quantity2
Connector GenderMale
Terminal GenderMale
Wiring Harness IncludedYes
Package ContentsAbs wheel speed sensor, instruction sheet
Position(s)Front

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006JeepWrangler4.0LL6Front
2005JeepWrangler4.0LL6Front
2004JeepWrangler4.0LL6Front
2003JeepWrangler4.0LL6Front
2002JeepWrangler4.0LL6Front
2001JeepWrangler4.0LL6Front
2000JeepWrangler4.0LL6Front
1999JeepWrangler4.0LL6Front
1998JeepWrangler4.0LL6Front
1997JeepWrangler4.0LL6Front

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

5308345602 77275S7069ABS185ALS74

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.