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Tesla Powerwall – 1978074-00-A – Expansion Harness Straps Kit

Manufacturer

OEM Part Number

1978074-00-A

GPS Part Number

88-1875157-40-C

Price:

$7.50

Specifications
Voltage WPC AH/kVA Length Width Height Weight
N/A N/A N/A N/A N/A N/A 16
Voltage N/A
WPC N/A
Amp/H N/A
Length N/A
Width N/A
Height N/A
Weight 16
Tesla Powerwall 3 — Expansion Harness Straps Kit
Powerwall 3 Expansion Accessory — Harness Support & Cable Management

Keep your installation organized with the Tesla Powerwall 3 Expansion Harness Straps Kit (1978074-00-A). This accessory supports Expansion Harness routing in wall-mounted installations.

The straps secure the harness along its planned path, keeping the cable close to the mounting surface for a neat, professional appearance.

Suitable for installation work and replacement of missing or damaged harness supports. Expansion Harness cables and Powerwall equipment are sold separately.

Key Features
  • Harness Support: Holds the Expansion cable along the mounting surface.
  • Organized Routing: Helps maintain an orderly cable path between units.
  • Formed Strap Design: Curved cable support with a mounting tab.
  • Service Accessory: Useful for replacing supports or completing a revised installation layout.
Typical Applications
  • Wall-mounted Powerwall 3 Expansion installations.
  • Horizontal and vertical harness routing.
  • Replacement of missing or damaged cable straps.
Product Details
Category Detail
Manufacturer Tesla
Part Number 1978074-00-A
Product Type Powerwall 3 Expansion Harness Straps Kit
Package Quantity 1 Strap
Primary Function Expansion Harness support and cable management
Horizontal Strap Spacing Tesla installation maximum: 610 mm (24 in) between straps
Vertical Strap Spacing Tesla installation maximum: 915 mm (36 in) between straps
Support Near Connectors Within 483 mm (19 in) of each connector
Installation & Compatibility

Follow Tesla’s current Powerwall 3 Expansion installation instructions. Verify strap fit and select fasteners appropriate for the mounting surface. Preserve the harness cable’s minimum bend radius of 95 mm (3.75 in).

💡 Planning Tip: Map the complete harness route before ordering. Count support locations along horizontal runs, vertical runs, and near connectors to determine the quantity your installation requires.
Need help selecting Powerwall installation accessories? Contact Gruber Power Services with your harness length and planned equipment layout.