DEF Main Connector Pigtail Repair Kit (A66-14017-080)

DEF Main Connector Pigtail Repair Kit (A66-14017-080)

The DEF Main Connector Pigtail Repair Kit is designed to repair damaged connector sections of harness part number A66-14017-080 without removing the entire DEF wiring harness assembly. This kit provides a practical and cost-effective solution for restoring electrical connections in heavy-duty truck DEF and SCR systems.

If you’re searching for:

• A66-14017-080 DEF connector repair

• DEF main connector pigtail kit

• Freightliner DEF harness connector replacement

• Cascadia DEF wiring repair

• SCR harness connector repair

This kit allows you to repair only the damaged connector portion instead of replacing the full harness.

What’s Included in the Kit

• 1x DEF Main Connector Housing

• 18x Single Wires with Pre-Crimp Contacts (for the respective connector)

Each wire is pre-crimped and ready for installation, reducing labor time and eliminating the need for specialized crimping equipment.

Note: Some contacts include integrated seals, and some connector housings include seals depending on production configuration.

Designed for DEF / SCR Harness Repair

The DEF (Diesel Exhaust Fluid) system is critical to emissions compliance and engine performance. A damaged DEF main connector can trigger fault codes, emission warnings, or cause reduced engine performance.

This DEF wiring harness repair kit helps technicians:

• Repair damaged connector sections

• Avoid full harness removal

• Reduce downtime

• Save on OEM replacement costs

Instead of replacing the entire harness assembly, this DEF connector pigtail kit restores proper electrical continuity at the main connector interface.

Built for Heavy-Duty Truck Environments

This kit is designed for use in demanding truck environments where connectors are exposed to:

• Heat

• Vibration

• Road debris

• Moisture

Sealed contacts and connector design help maintain durability and long-term performance in DEF system applications.

Key Features

• Compatible with harness part number A66-14017-080

• 18 pre-crimped wires included

• Designed for DEF / SCR system harness repair

• Cost-effective alternative to full harness replacement

• Ideal for diesel technicians and fleet maintenance

Important Note

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