Does the harness fit every tractor brand?

Yes. The in-cab ISOBUS connector is standardized across brands — Fendt, Valtra, John Deere, Case IH, CLAAS, Massey Ferguson, New Holland and other ISOBUS tractors all use the same connector on the cab side. The 1.8 m harness plugs into it directly.

Can the cabin harness reach my loads on the implement?

No. The cabin harness only connects the module to the tractor's in-cab ISOBUS connector — it's 1.8 m long. Wiring from the module's screw terminals to your loads is a separate run you do yourself, on whatever route suits your install.

Is the module weatherproof if I mount it in the cab?

The cab is dry, so yes. The module's IP20 rating is fine for in-cabin mounting on a DIN rail or inside a dashboard panel.

ISOBUS Block + In-Cabin Wiring Harness

Name: ISOBUS Block + In-Cabin Wiring Harness
Brand: ISOBUS Block
SKU: ISOBUSBLOCK-CABIN
Price: 1249 USD
Availability: InStock

Description

Cabin wiring, done. Same 8-channel ISOBUS relay module as the base version, with a pre-built 1.8 m harness. The tractor end has the in-cab ISOBUS connector ready to plug in; the module end is pre-stripped wiring that lands directly in the module's screw terminals. The ISOBUS connection powers the module and hooks it onto the bus, so once the terminals are tightened and the plug is in, the module boots up and shows on the tractor screen. All you do after that is wire your loads to the relay side. The in-cab ISOBUS connector is the same across tractor brands, so the harness fits Fendt, Valtra, John Deere, Case IH, and any other ISOBUS tractor out of the box. What you get Relay module. 1.8 m harness with a pre-terminated in-cab ISOBUS connector on the tractor end and pre-stripped wiring for the module's screw terminals on the other. Mounting clips. Quick-start guide. Who it's for Operators who want the module installed cleanly in the cab — fast, no cable fabrication. How you install it Mount the module in the cab. Land the harness's pre-stripped wires in the module's screw terminals (CAN, power, ground). Plug the other end into the tractor's in-cab ISOBUS socket. Wire your loads to the relay terminals. Assign the buttons from the screen. Want a weatherproof plug-and-play package for the implement? See the implement kit.

How It Works

Name it. Assign it. Press it.

Plug in one ISOBUS cable, wire your loads, then set up your buttons from the tractor screen.

Step 1

Name your button

Type a name (up to 8 characters), pick an icon, select which outputs it controls, and choose toggle or momentary mode.

ISOBUS Block dashboard with custom-named buttons and icons

Step 2

See it on the screen

Your buttons show up on the tractor display with the names and icons you chose. Pick a layout that fits your setup.

Step 3

Assign to your joystick

Open the tractor's AUX-N menu. Your named buttons appear there — assign them to any joystick or armrest button you want.

Step 4

Press it

Your joystick button switches the relay. Active outputs light up green on the screen. That's the whole system.

Want less wiring work?

ISOBUSBLOCK-MODULE

ISOBUS Block — 8-Channel Relay Module

$1,099

Bare module for integrators. You supply the ISOBUS cable and wire the output side yourself.

See this option

ISOBUSBLOCK-IMPLEMENT

ISOBUS Block + Plug-and-Play Implement Kit

$1,799

Full kit in an IP-rated box. Bolt it on the implement, plug one cable into the rear ISOBUS connector.

See this option

What's included

Specifications
Control	Tractor screen (CH1–CH8, TOG / MOM) and AUX-N joystick or armrest button
Includes	Relay module + 1.8 m harness (in-cab ISOBUS connector + pre-stripped wires for screw terminals)
Warranty	5 years
Connector	In-cab ISOBUS connector (standardized across tractor brands)
Max current	10A per channel
Installation	In-cab mount; relay outputs wired to your loads separately
Harness length	1.8 m
Relay channels	8 (NO, COM, NC per channel)
Supply voltage	Powered via ISOBUS
Max switching voltage	250V AC / 30V DC

Before & After

What actually changes

Same tractor. Same cab. Completely different setup.

Drilling holes, mounting switches

Clean cab — no modifications

Relay boards, fuses, wiring looms

One ISOBUS cable, done

Hard-wired, can't change it

Reassign any output from the screen

Reaching across the cab for switches

Everything on your joystick hand

Which switch was the work light again?

Labels on the tractor display

AUX-N Control

8 Inputs in Your Tractor

The module shows up in your tractor's AUX-N menu with 8 assignable inputs. Pick a button, pick an output, done. Your assignments are stored in the tractor — reconnect next season and they're still there.

Group Channels Together

One button press, multiple relays. Open a valve and turn on a work light at the same time.

Toggle or Momentary

Toggle stays on until you press again. Momentary activates while you hold. Set it per channel.

Custom Names & Icons

Name each channel (up to 8 characters) and pick an icon. Your names and icons show up on both the screen and the joystick assignment page.

ISOBUS Block Virtual Terminal interface on Fendt screen with custom channel names and icons

Custom names and icons on the Virtual Terminal — active channels highlighted in green

Fendt AUX-N assignment page showing ISOBUS Block custom names and icons on joystick buttons

Same names and icons carry over to the joystick button assignments

See it in action

The actual screens you'll use — button editor, layout options, AUX-N assignment, and more.

ISOBUS Block dashboard with 8 custom-named buttons and icons

ISOBUS Block layout selector — 2x4, 4x2, 1x8, BIG4, BIG2

Name each button, pick an icon, choose outputs and mode

Specifications

Built for the field. 8 relay channels, 10A each, 7–36V input. Set up everything from the tractor screen.

ISOBUS Native

Speaks ISOBUS. Shows up on your Virtual Terminal. Works with any tractor that has AUX-N controls.

WiFi Built In

Test outputs, check status, update firmware. Connect with your phone — open a browser, no app needed.

12V and 24V

7–36V DC input. Any ISOBUS tractor, 12 V or 24 V system.

Finnish Engineering

Designed and tested in Finland. A professional tool for professional use.

Machine side: CAN and power

Relay side: 8 channel terminals

DIN rail mount clips

Supply voltage	7–36V DC
Relay channels	8 (NO, COM, NC per channel)
Max current	10A per channel
Max switching voltage	30V DC / 250V AC
Protection	Optocoupler isolation, power isolation
Enclosure	Rail-mount ABS housing (indoor use; requires weatherproof enclosure for outdoor installation)
Dimensions	90 × 175 mm
Weight	500 g
Operating temperature	−30°C to +50°C
Warranty	5 years