21-Pin Connector Black Repair Kit

Detroit Diesel MCM / ACM / SAM 21-Pin Connector Repair Kit

The Detroit Diesel 21-Pin Connector Repair Kit is designed for MCM (Motor Control Module), ACM (Aftertreatment Control Module), and SAM Chassis applications. If your 21-pin connector has been damaged, corroded, or cut, this kit provides a professional-grade solution for restoring proper electrical connectivity.

Commonly searched as:

• Detroit Diesel MCM 21 pin connector

• ACM 21 pin pigtail repair

• SAM chassis 21 pin connector

• DDEC 6 21 pin connector repair

• MBE 4000 harness connector replacement

• Detroit Diesel 21 pin repair kit

This kit allows technicians to repair the connector portion without replacing the full harness.

Compatible Applications

This 21-pin connector repair kit is compatible with:

• Detroit Diesel MCM2.1

• Detroit Diesel ACM

• SAM Chassis Module (Black 21-pin connector)

• Detroit Diesel DDEC 6

• Detroit Diesel DDEC 13

• Detroit Diesel DDEC 15

• MBE 4000 engine systems

Compatible MCM part numbers include:

RA0024460135
A0024460135
0024460135
EA0004467635
A0004467635
0004467635
EA0004466035
A0004466035
0004466035

(Full compatibility list in specifications.)

What’s Included in the Kit

• 1x 21-Position Connector (Black)

• 21x Pre-Crimped Wires with Weather Seals (1 FT each)

• 1x MCM Pinout Diagram

• 1x Top Cover

Each wire includes integrated weather seals to protect against moisture and contamination.

Designed for Heavy-Duty Diesel Systems

A damaged 21-pin connector can cause:

• Communication faults

• Emission system issues

• No-start conditions

• Module error codes

• Engine performance problems

This Detroit Diesel 21-pin connector repair kit restores secure electrical connections in critical engine and chassis control systems.

Built for Engine Bay Durability

This kit is engineered to withstand:

• Heat

• Vibration

• Oil exposure

• Moisture

• Heavy-duty truck operating conditions

Ideal for diesel repair facilities, fleet maintenance shops, and engine rebuild specialists.

Key Features

• Designed for MCM, ACM & SAM chassis modules

• 21-pin connector housing included

• 21 sealed pre-crimp wires

• Includes MCM pinout diagram

• Includes protective top cover

• Cost-effective alternative to full harness replacement

Important Note

This kit repairs the connector portion only.
ECU / module is NOT included.