Epoch 13ft Extended Harness for LiMAX Big Box
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Epoch 13ft Extended Harness for LiMAX Big Box Golf Cart Batteries
The Epoch 13ft extended harness for LiMAX Big Box is a plug-and-play communication cable that lets you route the battery gauge to the dash on stretched, 6-passenger and custom golf carts, with no cutting or splicing of wires. At 13 ft (3.96 m), it gives the extra reach needed when the standard harness supplied in a LiMAX Big Box kit will not reach from the under-seat battery compartment to the dashboard. Explore more options in our lithium battery collection.
Key features
- 13 ft / 3.96 m reach: enough length for stretched carts, 6-passenger carts, utility carts and oversized builds.
- Plug-and-play: OEM-style connectors, so there is no cutting, soldering or crimping of communication wires.
- Built for LiMAX Big Box: matched to the Epoch LiMAX Big Box Series communication and gauge layout.
- Protected routing: black corrugated protective loom for under-seat and frame-rail runs.
- Clean dash install: hide the cable along existing wire paths and mount the display neatly on the dash.
- Data harness only: carries gauge and BMS communication, not motor or charging current.
Built for stretched and custom golf carts
Standard harnesses can fall short on 6-passenger, stretched and custom carts, hunting buggies and utility vehicles. This single continuous 13 ft harness connects the LiMAX Big Box battery communication port to the dash gauge or display path, so the battery stays under the seat and the display stays where it belongs. It is commonly useful for stretched or longer builds such as EZGO Express or Club Car Villager-style carts; final compatibility depends on your LiMAX Big Box kit, the gauge or display and the wiring path in your cart.
Do you need it?
Most standard 2-seat carts, and many 4-passenger carts, do not need it, because the 6 ft harness included in the LiMAX Big Box kit usually reaches the dash. Choose this 13 ft version only when the distance between the battery compartment and the dashboard is much longer.
Compatibility
This harness is for Epoch LiMAX Big Box Series systems only. It is not a universal harness for every Epoch battery, every LiMAX model or every golf cart display. Before ordering, confirm that you have a LiMAX Big Box battery kit and compare your battery-side and display-side connectors with the product images. If a connector looks different, do not force it: contact Epoch support with photos of the battery, dash gauge and existing harness.
Technical specifications
| Product | 13ft Extended Harness for LiMAX Big Box |
| SKU | EP-HARNESS-V4-4M |
| Type | Extended dashboard gauge / BMS communication harness |
| Compatible series | Epoch LiMAX Big Box Series only |
| Length | 13 ft (approx. 3.96 m) |
| Construction | Multi-connector harness with black protective corrugated loom |
| Connectors | OEM-style plug-and-play connectors |
| Function | Low-voltage data/communication between the battery and the dash display |
| Not for | Motor, controller, charger-output or battery main power connections |
Installation tips
Plan the route before plugging in the final connector. Run the harness along protected frame paths and existing wire channels, and secure it with zip ties or insulated clamps to prevent sagging and vibration rub. Keep it away from sharp edges, pinch points, hot components, suspension travel, tire spray and standing water, and leave a small service loop near the dash gauge so the display can be removed later without pulling the cable tight. Do not splice the harness, and do not daisy-chain several harnesses together, as extra connector joints can add moisture risk, signal interference and poor contact. Use the single continuous 13 ft harness instead.
Need help choosing batteries or accessories for your cart? Browse the full battery collection at M-Oceans or contact us for advice.