Standard Ignition ALS258 Vehicle Speed Sensor - Rear, Rear Center or Rear Left

Vehicle Speed Sensor for Rear Axle Applications

Standard Ignition ALS258 is a vehicle speed sensor built for rear differential mounting on select Dodge, Ram, and Mitsubishi applications. It uses a sealed design with insulated copper windings and a magnetic circuit that supports a steady output signal across changing driving conditions.

Fits 2004-2012 Dodge Dakota, rear and rear center; fits 2004-2010 Dodge Durango, rear center; and fits 2006-2012 Ram 1500, Ram 2500, and Ram 3500 rear axle applications listed below.

Key Features

• Female connector with rectangular housing for a direct electrical interface
• Mounts at the differential for rear axle speed sensing
• High-temperature insulated copper windings for durability in elevated heat
• Internal and external nitrile rubber oil seals for a secure, leak-resistant fit
• Magnetic circuit design supports consistent signal output
• 100% end-of-line tested for signal amplitude and frequency
• Standard Ignition ALS258 cross-references T Series ALS258T for the same application

Detailed Description

Standard Ignition ALS258 is a differential-mounted vehicle speed sensor engineered for rear axle signal monitoring on select Dodge Dakota, Dodge Durango, Dodge Ram 1500, Dodge Ram 2500, Dodge Ram 3500, Ram 2500, Ram 3500, and Mitsubishi Raider applications. The sensor’s sealed construction helps maintain a secure fit, while the insulated copper windings and magnetic circuit are built to deliver reliable electrical output under demanding operating conditions. Standard Ignition ALS258 is tested at the end of the production line to verify signal amplitude and frequency before release.

This part number, ALS258, is used across multiple OE-style replacement applications and is a practical choice when servicing rear differential speed sensor faults on trucks and SUVs with the listed configurations.

Common Problems This Sensor Can Help Address

• Erratic or missing vehicle speed signal from the rear differential
• ABS or traction-related warning lights tied to rear axle speed input
• Speedometer fluctuation or inaccurate road speed readings
• Transmission shift concerns caused by inconsistent speed data
• Diagnostic trouble codes related to vehicle speed sensor performance

Installation Notes and Tips

• Verify the connector style, mounting location, and terminal layout before installation.
• Confirm rear axle placement, since this sensor mounts at the differential on the listed applications.
• Inspect the mating connector and wiring for corrosion, bent terminals, or damaged insulation before reconnecting.
• Clear stored fault codes after installation and road test the vehicle to confirm proper signal operation.
• Use the exact vehicle configuration shown in the fitment list, including notes for rear center, rear left, rear axle, and traction-control exclusions.

Quality Assurance

Standard Ignition builds ALS258 with sealed nitrile rubber oil protection, heat-resistant copper windings, and a magnetic circuit designed for stable output. Each unit undergoes 100% end-of-line testing to confirm signal amplitude and frequency before it leaves production.

• Fits 2004-2009 Dodge Dakota, N/A, mounted on rear axle
• Fits 2004-2005 Dodge Durango, rear center, compatible with vehicles lacking traction control
• Fits 2006-2007 Dodge Ram 3500, rear center
• Fits 2006-2008 Dodge Ram 1500, N/A, mounted on rear axle
• Fits 2006-2009 Mitsubishi Raider, rear center
• Fits 2006-2010 Dodge Ram 2500, rear center
• Fits 2009-2010 Dodge Ram 3500, rear center
• Fits 2011-2012 Dodge Dakota, rear
• Fits 2011 Ram 2500, rear center
• Fits 2011 Ram 2500, rear left
• Fits 2011 Ram 3500, rear center
• Fits 2011 Ram Dakota, rear
• Fits 2012 Ram 3500, rear, with dual rear wheels