Topcon MCR3 MG2 40ft Cable 9063-1242-2-MCS

The Topcon MCR3 MG2 40ft cable (9063-1242-2-MCS) is a high-performance, OEM-grade machine control cable engineered to deliver consistent power transfer, precise signal communication, and superior reliability across grading, excavation, and 3D machine guidance operations. 

Built for the toughest construction environments, this 40-foot Topcon MCR3 to MG2 cable assembly ensures that your machine control components perform seamlessly with minimal downtime and maximum accuracy.

Designed for contractors, surveyors, earthwork professionals, and construction companies using the Topcon MCR3 control box and MG2 (or MC2) grading sensor, this cable offers the perfect blend of rugged durability and flawless data transmission making it a crucial part of any professional machine control system.

Whether you’re upgrading your old wiring bundle, replacing a worn cable, or completing a new installation, the Topcon 9063-1242-2-MCS cable assembly guarantees dependable performance that boosts productivity and maintains the precision Topcon systems are known for.

Key Features of the Topcon Assy MCR3 MG2 40FT (9063-1242-2-MCS)

OEM-Grade Cable Construction

This genuine Topcon cable is built to meet strict OEM standards, ensuring optimal compatibility and long-lasting performance with Topcon machine control systems. Every connector, wiring strand, and insulation layer is designed to sustain heavy usage and resist signal degradation.

40-Foot Length for Flexible Installations

The 40FT length provides easy routing through graders, dozers, excavators, skid steers, and earthmoving machines, giving you flexibility during installation while maintaining clean cable management. This extended length eliminates tension, stretching, or forced routing issues often found with shorter cables.

Seamless Connectivity Between MCR3 & MG2

This assembly ensures secure and stable communication between the Topcon MCR3 control unit and the MG2 (or MC2) machine control sensor, enabling precise data synchronization required for accurate grade control, slope adjustments, and automated blade movements.

Rugged & Weather-Resistant Design

From extreme temperatures to heavy vibration and constant machine movement, this rugged cable is built to endure the harshest working conditions. The jacket material resists:

• Abrasion
• Moisture
• Oil and fuel exposure
• UV radiation
• Mechanical impact

Stable & Interference-Free Signal Transfer

The internal wiring is shielded to prevent electromagnetic interference (EMI), guaranteeing stable communication between machine control components—essential for maintaining accuracy in grading and earthwork operations.

Perfect Replacement or Upgrade

If your old MCR3 → MG2 wiring harness shows signs of:

• cracking
• signal drops
• calibration errors
• intermittent connectivity

…then this OEM replacement cable is the ideal upgrade.

Why Choose the Topcon Assy MCR3 MG2 40FT Cable Assembly (9063-1242-2-MCS)?

Topcon is a global leader in machine control technology, and this cable assembly reflects the brand’s commitment to reliability and precision. 

With heavy machinery operating for long hours, even a minor cable failure can halt work, delay projects, and increase labor costs. That’s why contractors rely on OEM-approved cables like the Topcon 9063-1242-2-MCS to ensure uninterrupted performance.

Built for:

✔ Machine Control Professionals
✔ Construction Surveyors
✔ Grading Contractors
✔ Civil Engineering Firms
✔ Earthmoving Equipment Operators**

This cable is not just a wire it’s a critical component of your entire machine control workflow.

What This Cable Does & Why It Matters

Machine control systems depend on flawless communication between the control box and the grading or positioning sensor. In Topcon’s ecosystem, the MCR3 functions as the main controller that powers, receives, and processes data from sensors like the MG2 or MC2.

The Topcon Assy, MCR3 MG2 40FT cable (9063-1242-2-MCS) acts as the communication backbone between these critical components.

This cable:

• supplies power
• transmits real-time machine orientation data
• supports slope control
• ensures blade movement accuracy
• connects sensors to the control box without signal loss

When this link is stable, your machine guidance workflow becomes smoother, faster, and more reliable.

Without this cable, automated features in your machine control setup simply will not function.

2. Technical Importance of the Topcon MCR3 → MG2 Cable Assembly

Machine control systems rely heavily on precision. Even minor signal noise or delays can cause:

• incorrect blade movements
• grade mismatches
• slow response times
• inaccurate cut/fill calculations

The Topcon 9063-1242-2-MCS cable eliminates these issues through:

• advanced shielding
• high-grade copper conductors
• precision-molded connectors
• optimal insulation thickness

Its robust construction ensures that your machine receives the cleanest data possible enabling superior accuracy in grading, leveling, slope work, and earthmoving.

3. Compatibility & Applications

Primary Compatibility

• Topcon MCR3 Control Box (Machine Control Receiver)
• Topcon MG2 (Machine Grader Sensor)
• Topcon MC2 Sensor (Cross-compatible in many setups)

Whether your fleet includes:

• graders
• dozers
• scrapers
• compact track loaders
• excavators

…this cable ensures complete integration.

Common Applications

• 3D GPS machine control
• 2D slope control
• Rough and fine grading
• Road construction
• Land-development projects
• Foundation leveling
• Parking lot construction
• Site preparation
• Pad construction

This cable plays a vital role in powering and communicating with the machine’s onboard systems.

4. Durability & Construction Quality

Heavy machinery environments expose cables to constant vibration, dust, debris, and external forces. A typical non-OEM cable simply cannot withstand such conditions.

The Topcon MCR3 MG2 40FT cable assembly is built with:

• rugged thermoplastic insulation
• reinforced connector molding
• flexible yet impact-resistant outer sheathing
• industrial-grade shielding

These features ensure:

• no cracking
• no premature aging
• no signal dropouts
• no cable fatigue

The extended 40-foot design enables easier cable routing without strain.

5. Benefits of Using an OEM Topcon Cable (vs. Generic Third-Party)

Many contractors attempt to use low-cost generic cables, but the hidden risks include:

• incorrect wiring pinouts
• weak connectors
• degraded performance
• equipment calibration issues
• voided warranties

Topcon OEM cables, including the 9063-1242-2-MCS assembly, ensure:

• perfect fit
• exact pin-mapping
• firmware compatibility
• optimized communication

This cable is specifically engineered for maximum performance with Topcon GPS and machine control ecosystems.

6. Extended Length Advantage : Why 40FT Matters

The 40-foot cable length gives you:

• better routing flexibility
• easier installation
• less strain on connectors
• improved cable management

Short cables often lead to:

• tight bends
• rubbing against machine parts
• tension at connector points
• premature failures

The 9063-1242-2-MCS eliminates these risks.

7. Installation & Setup (Simple Plug-and-Play)

This cable requires no special tools or software configuration.
Just plug the connectors into:

• the MCR3 controller, and
• the MG2 or MC2 sensor

The system will automatically detect the connection and calibrate accordingly.

8. Performance in Harsh Environments

Construction sites expose equipment to:

• moisture
• dust
• mud
• oil
• hydraulic fluid
• constant vibration
• heat and UV light

The Topcon cable is engineered to withstand all of these conditions, ensuring long-term reliability.

9. Why This Is a Must-Have Replacement Cable

Replacing worn or damaged cables is crucial because:

• signal delays affect grading accuracy
• machine automation becomes unreliable
• slope control becomes inconsistent
• downtime increases labor & fuel costs

Symptoms of a failing cable include:

• intermittent power loss
• “Sensor Not Detected” errors
• calibration failures
• unstable grading performance

The Topcon 9063-1242-2-MCS cable is the perfect replacement for restoring full system performance.

Technical Specifications

Frequently Asked Questions 

What is the Topcon Assy, MCR3 MG2 40FT cable used for?

It is used to connect the Topcon MCR3 machine control receiver to the MG2 or MC2 grading sensor, enabling accurate data transfer for machine guidance and automated grading functions.

Is this cable compatible with the MC2 sensor?

Yes, in most machine control setups, the MC2 sensor is fully compatible with this cable assembly.

Is the 9063-1242-2-MCS an OEM Topcon part?

Yes, this is a genuine OEM Topcon cable built for high accuracy and long service life.

Can this cable be used on any machine model?

Yes, as long as the machine uses the Topcon MCR3 system and an MG2/MC2 sensor, this cable is compatible, regardless of the machine brand 

What makes the 40FT length important?

It offers flexibility in routing the cable across large machinery without strain or bending the wire.

Does this cable improve grading accuracy?

Yes. Stable and interference-free communication ensures accurate slope, elevation, and blade-control performance.

How long does this cable last?

With proper installation and protection, the rugged design can last several years even in extreme construction environments.

What signs indicate I need a replacement cable?

• Calibration issues
• Intermittent sensor connection
• “MCR3 Not Detected” errors
• Signal drops
• Physical wear

Can I install the cable myself?

Yes, installation is simple plug-and-play.

Is this cable waterproof?

While not fully submersible, it is weather-resistant and built for harsh outdoor conditions.