Part # 120851 – Conductor Terminal Block by Graco
The Graco 120851 Conductor Terminal Block is a genuine OEM electrical component designed to provide secure, reliable connections within Graco spray equipment control systems. Crafted for ease of replacement and long-term durability.
Compatible Machines
This terminal block is commonly found in the following Graco machines. Please confirm with your machine’s parts diagram before purchase:
- Graco Ultra Max II 490 PC Pro (Stand)
- Graco Ultra Max II 490 PC Pro (Hi-Boy/Lo-Boy)
- Graco Ultra Max II 795 ProContractor
- Graco Ultra Max II 1095 Standard/Pro (Electric)
- Graco Ultra Max II 1595 Standard Series
Key Features
- Compact block size (~1.2 in × 1.2 in × 1.2 in) for space-efficient mounting. :contentReference[oaicite:0]{index=0}
- OEM approved by Graco, part number 120851. :contentReference[oaicite:1]{index=1}
- Used in control and pump modules for power distribution and terminal connectivity.
- Provides robust electrical interface, ideal for replacement in aging equipment.
Installation & Maintenance Tips
- Disconnect the machine from power before removal or installation of the terminal block to avoid electrical hazards.
- Ensure matching wire gauge and oriented the terminal block exactly as the original to maintain wiring integrity.
- Inspect surrounding insulation, wiring connectors and strain-relief grommets—wear or looseness may compromise performance.
- If you are upgrading a machine older than 10 years, consider replacing adjacent wiring harnesses or terminals for long-term reliability.
Why Choose OEM Graco 120851?
Choosing the genuine Graco terminal block ensures that you retain factory fit, form and function in your spray system. Aftermarket alternatives may skip rigorous electrical testing or exact terminal spacing, risking loose connections or failure under vibration or wet-jobsite conditions.
Frequently Asked Questions
Yes — you may use it provided the wire gauge and terminal spacing match. Always follow the equipment’s wiring diagram and maintain proper wire routing and strain relief.
If your current part number is different, check the spacing, number of terminals, and electrical ratings. If they all match, 120851 may be compatible—but always verify with a service manual or Graco distributor for safety.
This product is the terminal block only—wiring or harnesses are not included. If wires show wear, it is recommended to replace them simultaneously for optimal safety and function.
Need help? If you are unsure whether this part fits your specific machine, consult your machine’s service manual or contact your local Graco distributor. Correct part installation helps ensure dependable performance and reduces downtime.
