Advance Truck Parts USA 66-04114-002 speed sensor for Freightliner trucks showing an angled studio view of the brown sensor housing and 3-wire pigtail harness

Advance Truck Parts USA studio perspective displaying the replacement output shaft speed sensor highlighting the mounting eyelet and connector housing

Advance Truck Parts USA studio close-up view showcasing the 3-pin electrical connector plug and wire leads of the commercial vehicle speed sensor

Genuine Freightliner 66-04114-002 Speed Sensor & Pigtail Kit

Name: Genuine Freightliner 66-04114-002 Speed Sensor & Pigtail Kit
Brand: Freightliner
SKU: W041006*
Price: 42.24 USD
Availability: InStock

Freightliner

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Description

Genuine Freightliner 66-04114-002 Speed Sensor & Pigtail Kit

Solve intermittent signal issues, transmission shift errors, and speedometer dropouts with a complete repair solution. This kit includes a Genuine Freightliner OEM Speed Sensor (Part # 66-04114-002) paired with a direct-fit Advance Truck Parts (ATP) Heavy-Duty Wiring Pigtail Harness Connector.

Speed sensor fault codes are frequently triggered by brittle, oil-soaked, or corroded harness connectors. Replacing both the sensor and the mating pigtail at the same time eliminates connection resistance and prevents recurring trouble codes and road downtime.

Key Features & Benefits

Complete Replacement Kit: Eliminates guesswork by renewing both the sensor and the mating connector assembly in a single installation.
Genuine Freightliner OEM Quality: Delivers precise pulse timing and clean signal transmission calibrated to exact factory tolerances.
High-Temp ATP Pigtail: Pre-assembled with oil-, fuel-, and heat-resistant TXL cross-linked wire and weatherproof automotive locking seals.
Direct Plug-and-Play Fit: Matches OEM connector pinout for quick, hassle-free splicing and secure locking under heavy vibration.

Product Specifications & Details

Sensor Part Number	66-04114-002 / 6604114002
Sensor Brand	Genuine Freightliner (OEM)
Pigtail Harness Brand	Advance Truck Parts (ATP)
Package Contents	1x Speed Sensor + 1x Pre-Wired ATP Pigtail Connector
Application	Heavy-Duty Freightliner Truck Chassis & Drivetrain Systems
Condition	100% Brand New

Common Signs You Need to Replace the Sensor & Pigtail:

Erratic speedometer needle behavior or speedometer cutting out completely.
Harsh transmission shifting, delayed gear changes, or transmission stuck in limp mode.
Active fault codes related to vehicle speed sensor (VSS) circuit high/low voltage or open circuit.
Visible cracking, oil contamination, or corroded terminal pins on the existing connector.

Fast Order Processing: All orders are securely packaged and shipped promptly to minimize fleet downtime. Need help verifying compatibility with your chassis VIN? Contact our technical support team for assistance.

Shipping information

Fast Shipping & Local Pickup

Keeping your business moving is time-sensitive. We process
and ship orders quickly to keep your downtime to a minimum.

Same-Day Shipping Cutoffs

Monday – Friday: Order by 5:30 PM ET
Saturday: Order by 11:30 AM ET

Free Local Pickup

Location: Sunrise, Florida
Ready Time: Free 1-hour warehouse pickup for in-stock items.

Overnight & Weekend Delivery

Standard Overnight: Delivered on the next business day (Monday – Friday).
Friday Overnight Orders: Delivered on Monday by default.
Saturday Delivery: If you need your order delivered on Saturday, you must select a specific "Saturday Delivery" option at checkout (subject to carrier availability).

Live Shipping Rates: Our website provides live shipping rates. Simply add the item to your cart and enter your ZIP code to instantly view all available shipping options before completing your purchase.

Next-Business-Day Delivery: Next-business-day delivery is available on many items when an overnight shipping option is selected before our daily shipping cutoff. Saturday delivery must be selected separately when available.