49-Pin Automotive Waterproof Connector – 2301238-1, TE Connectivity Heavy-Duty Wire Harness Connector

Part number 2301238-1 is a 49-pin heavy-duty waterproof automotive connector from TE Connectivity used in truck, agricultural, and industrial vehicle wiring harnesses. The 49-pin configuration is used for complex multi-circuit harness interfaces — ECM sub-connectors, body control module connections, and cab-to-chassis sub-harness interfaces where 49 circuits must pass through a single sealed connector. IP67 waterproof construction ensures reliable operation in underbody and exterior mounting locations on commercial vehicles.

Key Specifications

• Part Number: 2301238-1
• Manufacturer: TE Connectivity
• Pin Count: 49 pins
• IP Rating: IP67
• Housing Material: Glass-filled nylon (PA66-GF), UL94 V-0
• Operating Temperature: -55°C to +125°C
• Application: ECM, BCM, and main harness connections in commercial vehicles

49-Pin Connector — Application Context

• ECM sub-connectors: Secondary ECM connectors on commercial diesel engines carrying sensor and actuator circuits not included in the main ECM connector
• Body control modules: BCM connections for lighting, door, and body circuit control on trucks and buses
• Cab-to-chassis: Sub-harness connections between cab and chassis electrical systems
• Agricultural ECM: Engine and implement control module connections on agricultural equipment

Frequently Asked Questions

How do I identify the correct replacement for 2301238-1?

Cross-reference 2301238-1 in the TE Connectivity catalog (te.com) to verify specifications. Verify: pin count (49), gender (male plug or female receptacle), locking mechanism, and mounting configuration. The part number is typically molded into the connector housing. For commercial vehicles, the vehicle manufacturer’s parts catalog lists the connector part number for each harness location.

What contacts are compatible with 2301238-1?

Cross-reference the connector part number in the TE Connectivity catalog to identify compatible contact part numbers. The contact size depends on the specific connector series. Verify before ordering — using incorrect contacts will result in improper seating and potential connector failure.

How do I manage a 49-pin connector repair?

For 49-pin repairs: (1) photograph the connector and wiring; (2) use a scan tool to identify the specific circuit fault before disassembly; (3) label each wire with its pin number; (4) extract and replace only the damaged terminals; (5) verify seating with a pull-test; (6) install the back cover; (7) verify with a scan tool after repair.

Typical Applications

• Commercial trucks: ECM sub-connector and BCM harness connections
• Agricultural equipment: ECM and implement control harness connections
• Construction equipment: Control harness connections on heavy machinery
• Bus & coach: Body control and lighting harness connections

Package Contents

1 piece — 49-pin automotive waterproof connector 2301238-1 (housing as specified). Contacts and wire seals ordered separately if not included.