KFAS: Fanuc CNC Parts, Service, & Repair
CPU Card
A20B-3300-0026 9.5" monochrome
A20B-3300-0070 486DX2
Display Control Card
A A20B-3300-0020 10.4" color
B A20B-3300-0021 8.4" color
C A20B-3300-0023 9.5" monochrome
D A20B-3300-0024 7.2" monochrome graphic
E A20B-3300-0025 7.2" monochrome
Axis Control Card
A20B-3300-0030 4 axes
A20B-3300-0031 2 axes
DRAM Module
A20B-3900-0041 8 MB
A20B-3900-0042 4 MB
A20B-3900-0030 2 MB
SRAM Module
A20B-3900-0052 512 KB
A20B-3900-0053 256 KB
FROM Module
A20B-3900-0012 8 MB
A20B-3900-0013 6 MB
A20B-3900-0014 4 MB
A20B-3900-0015 2 MB
Ensure smooth and uninterrupted CNC operations with the FANUC A20B-8100-0137 Main CPU Board. This authentic FANUC component is designed for high-performance processing within FANUC CNC control systems, delivering precision, speed, and long-term reliability. Whether you’re replacing a failed board or performing preventative maintenance, this fully tested unit provides a cost-effective solution to minimize downtime and maximize productivity.
✅ Original FANUC OEM
board – not a third-party replica
✅ Ideal for CNC repair, maintenance, or retrofit projects
✅ Rigorously tested for performance and durability
✅ Fast shipping and dedicated support available
Trusted by machine shops and industrial automation professionals worldwide, the A20B-8100-0137 is your reliable choice for CNC controller repairs and upgrades.
Fanuc 16i-A/ 18i-A/ 21i-A Description Manual B-63002EN
Fanuc 16i-A/ 18i-A/ 21i-A Maintenance Manual B-63005EN
Fanuc 16i-MA/ 18i-MA/ 21i-MA Operator's Manual B-63014EN
Fanuc 16i-TA/ 18i-TA/ 21i-TA Operator's Manual B-63004EN
Fanuc 16i-A/18i-A/ 21i-A Parameter Manual B-63010EN
Fanuc 16i-A/ 18i-A/ 21i-A Hardware Connection Manual B-63003EN
