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52-Pin ECU Connector 1393450-1 / 1393454-6 / 1J0906380B — Tyco DJ7521-1.5/3.5-21 Female Waterproof
52-Pin ECU Connector 1393450-1 / 1393454-6 / 1J0906380B Tyco DJ7521-1.5/3.5-21 Female Waterproof
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52-Pin ECU Connector 1393450-1 / 1393454-6 — Tyco / TE Connectivity DJ7521-1.5/3.5-21 Female Waterproof
OEM-specification 52-pin ECU wiring connector (part numbers 1393450-1, 1393450-3, 1393454-6, 1J0 906380 B, V23542-C1052-B100) in the Tyco / TE Connectivity DJ7521-1.5/3.5-21 series. This composite-pitch female connector housing accepts both 1.5mm and 3.5mm series terminals in a single 52-pin body, making it the standard ECU connector for Volkswagen, Audi, Seat, and Skoda engine management and body control module applications. Manufactured from PA66 with CE certification, this connector delivers reliable performance in the demanding under-hood environment.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Numbers | 1393450-1 / 1393450-3 / 1393454-6 / 1J0 906380 B / V23542-C1052-B100 |
| Series | Tyco / TE Connectivity DJ7521-1.5/3.5-21 |
| Pin Count | 52 pins |
| Terminal Pitch | 1.5mm / 3.5mm composite (mixed pitch) |
| Gender | Female (connector housing) |
| Housing Material | PA66 (Nylon 66) |
| Sealing | Waterproof (sealed) |
| Certification | CE |
| Origin | Mainland China |
Key Features
- ✅ 52-pin composite pitch — 1.5mm and 3.5mm mixed terminal pitch in a single housing for ECU and BCM applications
- ✅ OEM part number compatible — direct replacement for 1393450-1, 1393450-3, 1393454-6, 1J0 906380 B, V23542-C1052-B100
- ✅ Waterproof sealed design — IP67-rated environmental sealing for under-hood ECU applications
- ✅ PA66 housing — high-temperature resistant nylon for reliable performance in engine bay environments
- ✅ CE certified — meets European automotive electrical component standards
Vehicle Compatibility
- Volkswagen (VW) — Golf, Passat, Polo, Tiguan, Touareg (ECU / BCM connector)
- Audi — A3, A4, A6, Q5, Q7 (engine management and body control module)
- Seat — Leon, Ibiza, Altea (ECU wiring harness connector)
- Skoda — Octavia, Fabia, Superb (ECU and BCM connector)
Common Applications
- ECU (Engine Control Unit) wiring harness connector replacement
- Body Control Module (BCM) connector re-termination
- Automotive wiring harness repair for VW / Audi / Seat / Skoda
- OEM and aftermarket ECU connector assembly
- Custom ECU wiring harness fabrication
FAQ
Q: What terminals are compatible?
A: This housing accepts 1.5mm series terminals (e.g., Tyco 1.5 series) in the signal pin positions and 3.5mm series terminals in the power pin positions. Refer to the OEM wiring diagram for the correct terminal assignment for your specific vehicle application.
Q: Is this a direct OEM replacement?
A: Yes. This connector is a direct-fit replacement for OEM part numbers 1393450-1, 1393450-3, 1393454-6, 1J0 906380 B, and V23542-C1052-B100 used in VW / Audi / Seat / Skoda ECU and BCM wiring harnesses.
Package Contents
- 1× 52-Pin ECU Female Connector Housing (DJ7521-1.5/3.5-21) — terminals not included
