2 of 2 Items
2 of 2 Items
Gravely heater kits built for the Gravely Atlas JSV 3400 or 6400
Ice Crusher builds two heater kits for the Gravely Atlas JSV 3400 or 6400. Each kit is designed around the machine, runs on engine coolant so there is no battery drain beyond the fan, and ships complete with hardware, hose, fittings and picture-rich instructions — backed by unlimited phone support from Minnesota.
Every kit at a glance
| Machine | Years | Kit | Heat | Vents | Defrost | Price |
|---|---|---|---|---|---|---|
| Gravely Atlas JSV 3400 | 2018–2025 | Atlas JSV 3400 Heater Kit | 14,600 BTU | 8 | Yes | $499.99 |
| Gravely Atlas JSV 6400 | 2018–2025 | Atlas JSV 6400 Heater Kit | 14,600 BTU | 8 | Yes | $499.99 |
What you get
Every kit ships the same business day from Minnesota with the heater, vents, hose, fittings, hardware, specialty tools and picture-rich instructions.
Atlas JSV 3400 (2018–2025): mounts behind the center console against the firewall, 8 vents, windshield defrost, 14,600 BTU. Choose 2 Seat or 4 Seat at checkout; in-cab heat control is available as an option.
Atlas JSV 6400 (2018–2025): mounts behind the center console against the firewall, 8 vents, windshield defrost, 14,600 BTU. Choose 2 Seat or 4 Seat at checkout; in-cab heat control is available as an option.
Installation
Plan on four to eight hours with hand tools, depending on experience. All the hardware, fittings, hose and specialty tools are in the box, and the instructions walk the install step by step with photos. Call 888-964-0135 if you have a question mid-install — unlimited tech support comes with every kit.
Frequently asked questions
Does it defrost the windshield?
Yes — every Gravely kit includes defrost vents.
Will it drain the battery?
No. The heat comes from engine coolant; the fan draws about what a factory blower does.
Is everything I need in the box?
Yes. Heater, vents, hose, fittings, hardware, specialty tools and picture-rich instructions, plus unlimited phone support at 888-964-0135.
Do I need the hose clamp-off tools?
No — you can install the kit without them. But they make the job significantly cleaner and quicker, because you don't have to drain the coolant before cutting into the radiator hoses: clamp the hose off on each side, make the cut, and very little coolant is lost and very little air gets in. They are a $24.99 option at checkout on the kit page.