Battery Box Kit

Force 5K

Weight Capacity: 5,000 lbs Gross. / 900 lbs Tongue

6.5" Tires
20" Ball Mount with Tightening Bar
Two Hitch Balls: 2" & 2 5/16"
Thrust Washer (Puzzle)
U1 Battery Kit
Includes Battery, Mounting Tray, Strap and 6" Power Cable
Built-In Battery Charger
Smart Brake Controller
Controls Electric & Surge Brakes via 7-Pin plug.

Force 10K

Weight Capacity: 10,000 lbs Gross. / 900 lbs Tongue

6.5" Tires
20" Ball Mount with Tightening Bar
Two Hitch Balls: 2" & 2 5/16"
Thrust Washer (Puzzle)
U1 Battery Kit
Includes Battery, Mounting Tray and Strap, and 6" Power Cable
Built-In Battery Charger
Smart Brake Controller
Controls Electric & Surge Brakes via 7-Pin plug

Ball Mount

Max Capacity: 10,000 lbs GVWR
Tongue Weight: 1,000 lbs

20" Ball Mount Adapter

• 2 HITCH BALLS: 2" & 2 5/16"
• THRUST WASHER (Puzzle)
• TIGHTENING BAR

Includes Stabilizer System. See Instruction Manual for details:

• STABILIZING RATCHET STRAPS
• SPACER PLATE

15k Fifth Wheel

Max Capacity: 15,000 lbs GVWR
Tongue Weight: 3,000 lbs

Kingpin Measurements should be 48”-52” from Ground to bottom of Kingpin Box.

If measurements exceed 48”-52”, Contact Us before ordering. 

Kingpin Adapter
(50" from Ground to Kingpin Box)
Universal Stabilizer Bars
(Kingpin or Landing Leg Connection)
Wireless Remote Controller
Two U1 Sealed Batteries
Built-In Battery Charger
Smart Brake Controller
(Controls Electric & Surge Brakes via 7-Pin plug.)
6.5" Wide Tires

15k Gooseneck

Max Capacity: 12,000 lbs GVWR
Tongue Weight: 1,500 lbs

This is a Custom Item. Please provide us with the height from the ground to the bottom of your hitch before ordering. You can Contact Us with these details, or leave us a note at checkout.

Gooseneck Adapter
(Customized to fit your Trailer Dimensions.)
Wireless Remote Controller
Two U1 Sealed Batteries
Built-In Battery Charger
Smart Brake Controller
Controls Electric & Surge Brakes via 7-Pin plug.
6.5" Wide Tires

Customers within the Mainland US & Canada get FREE SHIPPING on orders over $600 USD.

Delivery times are approximate, with weather and holidays permitting.

For Express or International shipping rates and delivery times, please Contact Us.

All Trailer Dollies will require a signature upon delivery. If you would like to waive this requirement, leave us a note at checkout.

Note: We cannot ship Trailer Dollies to PO Box addresses.

Your Trailer Dolly is covered by our 2 Year Parts & Repair Warranty! If your Trailer Dolly fails to perform within this time frame, we will work with you to fix the issue and provide replacement parts. Each 12V U1 Battery is covered separately by a 1 Year Interstate® Battery Warranty. Find a Interstate® Service Location near you.

(Warranties start from your initial date of purchase.)

If you are not completely satisfied with your Trailer Dolly, customers in the Mainland US and Canada can return their unit up to 30 days after receiving their dolly for a refund, minus a flat return shipping cost and restocking fee.

Parts Only and International Trailer Dolly orders are not eligible for return.

Read our Full Return Policy