Product Details
The Tesla Powerwall 3 4 Metre Expansion Harness (1875157-40-Y) is a factory-engineered Tesla accessory designed to connect multiple Powerwall 3 units and Expansion Batteries in parallel. Featuring robust Tesla connectors and certified high-quality cabling, this 4-metre harness provides a reliable high-voltage link between batteries, enabling flexible, scalable energy storage configurations for both residential and commercial applications.
This harness allows certified installers to expand Powerwall 3 systems seamlessly, supporting the integration of additional units while maintaining system performance, safety, and long-term reliability. Its extended length makes it ideal for installations requiring greater separation between units, such as stacked or multi-unit layouts.
Key Features & Benefits:
4-metre expansion harness for Tesla Powerwall 3 systems
Connects Powerwall 3 units and Expansion Batteries in parallel
Provides a robust, high-voltage link between battery units
Supports scalable energy storage for residential and commercial installations
Genuine Tesla component for certified installers
Ideal for multi-unit, stacked, or separated Powerwall 3 configurations

NOTE: Purchase of this product is restricted to Tesla Certified Installers in accordance with Tesla requirements. If you are not currently certified, please apply via Tesla’s Energy Partner program:
https://www.tesla.com/en_au/energy_partner-with-tesla
Warranty Information
Warranty Method
Contact Tesla - Home Owner call 1800 646 952 / Installer call 1800 294 431. Please note: ALL LED DIRECT is under strict requirements from the manufacture to not accept any returns for this product unless you have an RMA
Commercial Use
10 Years
Domestic Use
10 Years
Warranty Period
10 Years
Attributes
Brand
Tesla Energy
Part Number
1875157-40-D
Sub Category |

Attributes:

Brand: Tesla Energy
Part Number: 1875157-40-D
Sub Category: Powerwall Accessories and Spare Parts
Weight (kg): 4.1000
Length (mm): 4263
Height (mm): 71
Width (mm): 36
Length Packaging (mm): 50
Height Packaging (mm): 432
Width Packaging (mm): 432
Barcode: 2000101088707

Warranty Information:

Warranty Method
Commercial Use
10 Years
Domestic Use
10 Years
Warranty Period
10 Years

Shipping Information: