How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Giddings & Lewis CNC Control Module 503-26116-20

$2,500.00 USD

Sale Sold out

ConditionSurplus - Untested MPN503-26116 Stock #0226-00278

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 15.0 lbs

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Giddings & Lewis Executive Control 486 CNC control module, assembly number 503-26116-20, PCB marked “GIDDINGS & LEWIS EXECUTIVE CNTRL 486 REV – R4 9/94.” This board is identified as Revision R4 dated September 1994 and is designed for use within Giddings & Lewis Executive 486 control systems. The assembly features multiple DIP integrated circuits, socketed memory ICs, expansion slots, ribbon cable headers, card edge connectors, and an onboard heat sink. A secondary label visible on packaging references number 503-19931-16.

The PCB layout includes numerous labeled components, integrated logic devices, and processor-related chips consistent with CNC control architecture of the Executive 486 platform. Edge connectors are configured for rack or backplane installation within compatible Giddings & Lewis control cabinets. All manufacturer identification, assembly numbers, and revision data are taken directly from visible board silkscreen and labels.

This module is suitable for buyers sourcing a direct replacement or spare for Giddings & Lewis Executive 486 CNC systems requiring assembly 503-26116-20, Revision R4. Identification should be verified against the existing control system to confirm compatibility prior to installation.

Stock # 0226-278

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.