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Diesel Electronic Supply

Detroit Diesel MCM2.1 120-Pin Connector Repair Kit / Pigtail

Detroit Diesel MCM2.1 120-Pin Connector Repair Kit / Pigtail

Regular price $280.00
Regular price Sale price $280.00
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Detroit Diesel MCM2.1 120‑Pin Connector Repair Kit / Pigtail

First and foremost, the Detroit Diesel MCM2.1 120‑Pin Connector Repair Kit delivers a dependable solution for repairing damaged, cut, or corroded harness connectors on Detroit Diesel Motor Control Modules (MCM2.1). When connector damage occurs, technicians can immediately use this kit to restore proper electrical connections. Rather than replacing the entire engine harness, they can complete the repair faster and more affordably. As a result, both downtime and repair costs decrease. Moreover, diesel technicians frequently encounter connector failures caused by corrosion, theft, or previous harness repairs. In those situations, this kit provides a practical alternative. Therefore, it remains a preferred solution for heavy‑duty diesel engine service applications where reliability matters most.

Common Search Terms

Because this component supports multiple Detroit Diesel platforms, customers often locate it using the following search terms. For example:
  • Detroit Diesel MCM 120‑pin connector
  • MCM2.1 pigtail repair kit
  • DDE 0024460135 connector repair
  • 0001531422 repair kit
  • Detroit Diesel MCM harness replacement
  • DD15 MCM connector repair

Compatible Detroit Diesel MCM Part Numbers

To ensure broad compatibility, this repair kit supports multiple Detroit Diesel MCM2.1 modules. Specifically, it works with the following part numbers:

MCM2.1 Part Numbers

  • DDE RA0024460135
  • RA0024460135
  • A0024460135
  • 0024460135
Additionally, the kit supports:
  • DDE EA0004467635
  • RA0004467635
  • A0004467635
  • 0004467635
Furthermore, the kit also remains compatible with:
  • DDE EA0004466035
  • RA0004466035
  • A0004466035
  • 0004466035
Finally, this repair kit replaces:
  • 0001531422 Connector Repair Kit / Pigtail
Because these part numbers commonly appear on DD13, DD15, and DD16 engine platforms, this repair kit covers a wide range of Detroit Diesel applications. Consequently, technicians can stock one solution for multiple engines.

What’s Included

To simplify installation, this kit includes all required connector components:
  • 1 × 120‑Position Connector Housing
  • 120 × Pre‑Crimped Wires with Weather Seals
    • Each wire measures approximately 1 ft (30 cm)
    • Automotive‑grade insulation increases durability
    • Weather seals protect against moisture intrusion
Importantly, each wire arrives pre‑crimped and sealed, which minimizes installation time. Therefore, technicians can complete repairs efficiently while still maintaining OEM‑level reliability.

Designed for Heavy‑Duty Diesel Applications

Because the Motor Control Module (MCM) manages critical engine and communication functions, connector integrity remains essential. When the connector fails, several issues may occur. For instance:
  • Engine fault codes
  • No‑start conditions
  • CAN communication failures
  • Engine derates or performance concerns
  • Increased downtime and operating expenses
Consequently, restoring a secure electrical connection becomes a priority. For that reason, this 120‑pin connector repair kit re‑establishes dependable continuity without requiring full harness replacement.

Built for Harsh Engine Bay Environments

Since engine bays expose components to extreme conditions, durability plays a critical role. Accordingly, this kit uses automotive‑grade materials specifically selected for heavy‑duty service. As a result, the components withstand:
  • High operating temperatures
  • Continuous vibration
  • Oil and chemical exposure
  • Moisture and road contaminants
Because of this durability, the kit works well in demanding environments such as:
  • Diesel repair shops
  • Fleet maintenance operations
  • Engine rebuild facilities
  • Mobile diesel service units

Key Features

  • Specifically designed for Detroit Diesel MCM2.1 modules
  • Includes a complete 120‑pin connector housing
  • Features 120 pre‑crimped, sealed wires for faster installation
  • Supports multiple DDE and Detroit Diesel part numbers
  • Reduces costs compared to full harness replacement
  • Delivers professional‑grade reliability for heavy‑duty diesel repairs

Important Note

⚠️ This kit repairs only the connector portion. Therefore, it does not include the MCM module or ECU header.
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