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Learn moreAllen-Bradley Parts for Sale
PLC Machinery carries one of the deepest selections of surplus, used, and obsolete Allen-Bradley (Rockwell Automation) parts in the country — ControlLogix, CompactLogix, PowerFlex, Kinetix, PanelView, POINT I/O, FLEX I/O, and legacy PLC-5 and SLC 500 hardware. Discontinued lines Rockwell no longer makes are often on our shelf today instead of a 20-week lead time. Every part is graded by condition, backed by our own 90-day warranty, and ships same day. Not sure a unit is genuine? Read our guide on how to spot counterfeit Allen-Bradley parts.
Shop by Allen-Bradley Product Family
Frequently Asked Questions
Are used Allen-Bradley PLCs reliable?
Yes. Allen-Bradley hardware is built for decades of industrial service, and a sound surplus unit performs no differently than one bought new. The key is buying from a source that grades condition honestly and stands behind the part — which we do.
Can you source obsolete or discontinued Allen-Bradley parts?
Yes — it's our specialty. Discontinued lines like PLC-5, SLC 500, and older MicroLogix and PowerFlex families are no longer manufactured, but they're still running in thousands of facilities. If you don't see a discontinued part listed, contact us; we may have it or be able to find it.
How do I know I'm getting genuine Allen-Bradley and not a counterfeit?
Counterfeit Allen-Bradley is a real problem on the open market. We inspect every unit for authenticity before it's listed and grade its condition transparently. For the full walkthrough, read our guide on how to spot counterfeit Allen-Bradley parts.
Do you test parts before shipping?
Most surplus parts are inspected and sold as-is rather than functionally tested, and are priced accordingly; items we do bench-test are marked. Either way, every part is backed by our 90-day warranty, so if something doesn't work, you're covered.
What warranty do you offer?
All parts carry our own 90-day PLC Machinery warranty — our coverage, not a Rockwell factory warranty.
What do your condition grades mean?
Surplus – Original Packaging: surplus stock in the manufacturer's original box. Surplus – Open Box: surplus stock, original packaging opened. Used: previously installed, inspected.
ControlLogix vs. CompactLogix — what's the difference?
ControlLogix (1756) is the rack-based, high-performance platform for large or complex systems; CompactLogix (1769) is the compact, cost-effective controller for small-to-mid applications. Both program in Studio 5000.
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Allen-Bradley 820Ω 2W 5% Carbon Composition Resistor RC42GF821J Lots of 22
$105.00SKU: B-2-6-210Add to Cart -
Allen-Bradley 855T-G24DN4 /B 70mm Red Control Tower Light 24V AC/DC
$195.00SKU: C-3-1-310Add to Cart -
Allen-Bradley 855T-G24DN4 /B 70mm Red Steady Incandescent Control Tower Light
$194.99SKU: C-3-1-301Add to Cart -
Allen-Bradley 855T-L10 /A Incandescent Lamp 120V 7W BA15d Control Tower Light
$25.00SKU: C-3-1-284Add to Cart -
Allen-Bradley 871L-B20E40-T2 /A Inductive Proximity Sensor 20mm 20–250V AC/DC
$445.00SKU: A-2-1-418Add to Cart -
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Allen-Bradley 873P-D18P1-2200-D4 /A Ultrasonic Proximity Sensor 15–30V DC
$530.00SKU: C-3-12-102Add to Cart -
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Allen-Bradley Carbon Composition Resistor Hot-Molded Fixed Type Lots of 300
$100.00SKU: B-2-6-199Add to Cart -
Allen-Bradley CR2 700-N400A1 Control Relay 4NO 120VAC Bulletin 700 Ser C
$35.00SKU: B-3-8-309Add to Cart -
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Allen-Bradley N9 Overload Heater Element Eutectic Alloy Thermal Motor Protection
$25.00SKU: C-3-12-107Add to Cart -
Allen-Bradley PanelView Mounting Clips Kit for PanelView (2 Sets of 4)
$100.00SKU: D-3-1-263Add to Cart -
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Allen-Bradley PowerFlex 40 VFD 22B-D1P4N104 480V 0.5HP AC Drive Ser. A
$135.00SKU: D-3-4-167Add to Cart -
Allen-Bradley PowerFlex 70 VFD 20AE011A0AYNNNCO 600V 3-Phase 10HP 11A AC Drive
$1,925.00SKU: C-3-10-200Add to Cart -
