Cascadia DEF Harness Connector Repair Kit (A66-14017-080) 2019–2024

Cascadia DEF Harness Connector Repair Kit (A66-14017-080) – 2019–2024

The Cascadia DEF Harness Connector Repair Kit is designed to repair connector sections of DEF harness part number A66-14017-080 used on 2019–2024 Freightliner Cascadia trucks. If your DEF wiring harness connector has been damaged, cut, or corroded, this kit allows you to restore the connector portion without replacing the entire harness assembly.

Commonly searched as:

• A66-14017-080 DEF harness repair

• Cascadia DEF connector repair kit

• Freightliner DEF wiring harness repair

• Cascadia SCR harness connector

• 2019 Cascadia DEF harness repair

This repair solution provides a cost-effective alternative to full harness replacement.

Designed for Cascadia DEF / SCR Systems

The DEF (Diesel Exhaust Fluid) harness plays a critical role in the SCR (Selective Catalytic Reduction) emissions system. A damaged connector can result in:

• DEF fault codes

• Emissions warning lights

• Engine derate

• Reduced performance

• Costly downtime

Replacing only the damaged connector section helps minimize repair time and expense.

Compatible with Part Number A66-14017-080

This kit is specifically compatible with:

• DEF Harness P/N: A66-14017-080

• Freightliner Cascadia 2019

• Freightliner Cascadia 2020

• Freightliner Cascadia 2021

• Freightliner Cascadia 2022

• Freightliner Cascadia 2023

• Freightliner Cascadia 2024

(Verify harness part number before ordering.)

What’s Included in the Kit

All kits include:

• Connector housing (based on selected configuration)

• Single wires with pre-crimp contacts specific to connector pin count

For example:

• 2-pin connector = 2 pre-crimp wires

• 4-pin connector = 4 pre-crimp wires

Note:
Some contacts include integrated seals, and some connectors come pre-sealed depending on the application.

Built for Heavy-Duty Emissions Environments

The included automotive-grade wiring is designed to withstand:

• High temperatures

• Road vibration

• Moisture and contaminants

• Engine bay exposure

This makes it ideal for diesel repair facilities, fleet maintenance shops, and owner-operators.

Key Features

• Designed for Cascadia DEF harness P/N A66-14017-080

• Covers 2019–2024 models

• Pre-crimped wires included

• Connector-specific configuration

• Cost-effective alternative to full harness replacement

• Ideal for DEF / SCR system repairs

Important Note

This kit repairs the connector portion only and does not include the complete DEF harness assembly.