Electrical & Wiring
Wiring harnesses and electrical distribution systems are the nervous system of BYD electric vehicles, routing power and CAN-bus data signals between every electronic module in the vehicle. This category covers instrument panel wiring harnesses, floor harnesses, ceiling harnesses, door harnesses, front cabin harnesses, front cabin power distribution boxes, starting batteries, battery terminal harnesses, antennas (4G/GPS, detection), SIM card readers, in-vehicle network terminals, electronic smart keys, USB charging connectors, combination switches, and charging vehicle sockets for BYD Atto 3, Dolphin, Sealion 7, and Denza D9. Replacement harnesses must match the exact connector types, wire gauge, and shielding specifications of the original to prevent signal interference with high-voltage drivetrain components.
Available Across These Models
Parts in This Category
Denza D9
Right front wiring harness bracket - after-sales package
Electrical & Wiring
$6.00
15763686-00 · MRHB-3501502S
Denza D9
Left front wiring harness bracket - after-sales package
Electrical & Wiring
$6.00
15763687-00 · MRHB-3501501S
Denza D9
In-vehicle detection antenna
Electrical & Wiring
$6.00
10274341-00 · S6-3642400
Denza D9
In-vehicle detection antenna assembly
Electrical & Wiring
$13.00
12542630-00 · SCED-3642300
Denza D9
External detection antenna assembly
Electrical & Wiring
$7.00
12612956-00 · HC-3642600
Denza D9
Electronic smart key
Electrical & Wiring
$42.00
13501035-00 · MRH-3791200A
Denza D9
Button cell battery CR2032/240mAh/3.0V/0.2mA/3.1g/-30-85℃
Electrical & Wiring
$2.00
18449396-00
Denza D9
External antenna
Electrical & Wiring
15148195-00 · MREBY-7903500
Denza D9
4G GPS antenna
Electrical & Wiring
13937108-00 · HCEEC-7922050
Denza D9
SIM card reader
Electrical & Wiring
13407229-00 · SC2EM-7924230
Denza D9
In-vehicle network service terminal
Electrical & Wiring
15148194-00 · MREBY-7925100A
Denza D9
combination switch
Electrical & Wiring
15063568-00 · MREBY-3774010PZ
Denza D9
USB charging connector
Electrical & Wiring
$21.00
15700114-00 · MRHK-3798700
Denza D9
Starting type iron battery
Electrical & Wiring
$114.00
13891829-00 · STEK-3703030A
Denza D9
Battery negative terminal harness
Electrical & Wiring
15403834-00 · MRHF-4002911AZ
Denza D9
Front cabin power distribution box body
Electrical & Wiring
15065436-00 · MREBY-3722500A
Denza D9
Lower bracket of front compartment electrical distribution box
Electrical & Wiring
$9.00
13346705-00 · MRHB-3722600
Denza D9
Front cabin wiring harness
Electrical & Wiring
14958439-00 · MREBY-4011100B
Denza D9
Instrument panel wiring harness I
Electrical & Wiring
14961870-00 · MREBY-4003110B
Denza D9
Ceiling wiring harness
Electrical & Wiring
14961842-00 · MREBY-4002800B
Denza D9
Floor wiring harness
Electrical & Wiring
14961871-00 · MREBY-4004300B
Denza D9
Floor harness II
Electrical & Wiring
14509474-00 · MRHB-4004320CZ
Denza D9
Rear door wiring harness
Electrical & Wiring
14961866-00 · MREBY-4002700B
Denza D9
Right rear door wiring harness
Electrical & Wiring
$49.00
13350448-00 · MREB-4002400B
Related Categories
Frequently asked about Electrical & Wiring
Which models do electrical & wiring parts fit?
Electrical & Wiring listings cover BYD Atto 3 (Yuan Plus), Dolphin, Sealion 7 (Seal U), Denza D9, and the wider BYD lineup. Each part is tagged with OE codes and a model key so workshops match it to the exact vehicle variant.
Do you supply both OEM and aftermarket electrical & wiring?
Yes. Electrical & Wiring parts ship in three tiers — Genuine OEM, Premium Grade A, and Aftermarket — so workshops and distributors can balance quality and price by repair type.
How do I identify the correct electrical & wiring part?
Use the OE code from the existing part or the VIN. Send the OE code or VIN with photos via the inquiry form; we cross-check against the catalog and confirm fitment before quoting.
Can you export electrical & wiring internationally?
Yes. Air and sea freight under EXW, FOB, and CIF terms with the standard export document pack (commercial invoice, packing list, B/L or AWB, insurance certificate when CIF/DDP).
Need Parts from This Category?
Send us the OE codes and quantities. We'll confirm availability, pricing, and lead time.