AMP Type ECU Automotive Board-End Connector 26P 34-Pin Waterproof – OEM 1437290 PCB Socket

Description

AMP Type ECU Automotive Board-End Connector – Waterproof 26P / 34-Pin PCB Panel Socket

OEM Part Number: 1437290 (TE Connectivity / AMP)

AMP-type board-end (PCB-mount) connectors are the interface between an automotive ECU’s printed circuit board and the external wiring harness. The board-end connector solders or press-fits directly to the PCB; the mating harness plug connects the external wire harness to the ECU. These connectors are used in engine control modules (ECM), transmission control modules (TCM), ABS/ESC modules, and body control modules (BCM) across a wide range of vehicle platforms. The waterproof design maintains IP67 sealing at the ECU housing penetration point.

Key Specifications

OEM Part Number: 1437290 (TE Connectivity / AMP)
Pin Counts: 26-pin and 34-pin configurations (select above)
Mount Type: Board-end (PCB solder or press-fit) + panel mount flange
Waterproof Rating: IP67 (mated with harness plug)
Contact Material: Copper alloy, gold-plated
Housing Material: PBT (polybutylene terephthalate), flame retardant
Operating Temperature: -40°C to +125°C
Voltage Rating: 12V / 24V DC automotive systems
Quantity: 1, 5, or 20 pieces (select above)

Board-End vs Harness-End Connectors — Understanding ECU Connector Pairs

ECU connectors always come in matched pairs:

Board-end (this product): Mounts on the ECU PCB inside the module housing. Soldered or press-fitted to the board. Fixed — cannot be replaced without ECU disassembly and soldering.
Harness-end (pigtail/plug): Attached to the external wiring harness. Mates with the board-end connector. Can be replaced in the field by splicing a new pigtail into the harness.
Repair strategy: If the board-end connector is damaged, ECU board repair or replacement is required. If the harness-end connector is damaged, replace the harness pigtail only — no ECU disassembly needed.

What Questions Does This Product Answer?

"How do I identify which AMP connector my ECU uses?" — Look up the ECU part number in the vehicle’s wiring diagram or the ECU manufacturer’s connector specification. The connector part number (e.g., 1437290) is typically listed in the ECU technical documentation. Alternatively, count the pins and measure the connector body dimensions to cross-reference against TE Connectivity’s connector catalog.
"Can I replace a damaged board-end ECU connector?" — Yes, but it requires ECU disassembly, desoldering the damaged connector, and soldering the replacement. This requires SMD rework skills and equipment. For most users, replacing the harness-end pigtail is the simpler repair — the board-end connector is only replaced when the ECU PCB itself is being repaired or rebuilt.
"What causes ECU connector failures?" — The most common causes: (1) corrosion from moisture ingress — damaged housing seal or missing connector seal allows water into the connector cavity; (2) terminal backout — damaged locking lances allow terminals to push back under vibration; (3) fretting corrosion — micro-movement between mated contacts in high-vibration environments causes oxide buildup and increased resistance.
"What contact cleaner is safe for ECU connectors?" — Use electronics-grade contact cleaner (e.g., Caig DeoxIT D5) applied sparingly with a fine brush or applicator. Do not spray directly into the connector — excess cleaner can wash lubricant from the contact surfaces and damage plastic housing materials. Allow to dry completely before reconnecting.

Typical Applications

ECU repair: Replacing damaged board-end connectors on engine management modules during ECU rebuild
Custom ECU builds: Installing OEM-compatible connectors on custom or aftermarket ECU boards
Motorsport: Building OEM-compatible harness interfaces for standalone ECU installations
Automotive electronics repair: TCM, ABS module, BCM connector replacement during module refurbishment