42SMP-7021
Allen-Bradley lists this part as discontinued. The designated replacement is 42KD-B2LAR1-A2. Remaining stock of the 42SMP-7021 trades on the surplus market below.
Market snapshot
Prices updated 9 Oct 2026 · next refresh 9 NovMedian $404 · 6 sellers · $224 below median at the lowest
Asking prices for the exact catalog number 42SMP-7021 currently range from $180 to $884 across 6 sellers, observed 9 Oct 2026. Distributor product page: santaclarasystems.com. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.
Current listings
6 SELLERS · SORTED BY PRICE| Seller | Price | vs median | Listing |
|---|---|---|---|
| eBay | $180.00 | -55% | View offer |
| eBay - chronocollectiblesllc | $249.99 | -38% | View offer |
| DO Supply | $312.00 | -23% | View offer |
| NRI Industrial Sales | $495.30 | +23% | View offer |
| eBay - nate_isc | $699.99 | +73% | View offer |
| Radwell.com | $884.46 | +119% | View offer |
Get quotes for this part
We forward your request to sellers who currently list the 42SMP-7021 at or below the market median. They quote you directly — we never see your pricing and take no commission.
Price watch
FREE · MONTHLYGet an email when the market for the 42SMP-7021 moves: sellers appearing or disappearing, or the median shifting. One email per monthly refresh, and only when something changed. Unsubscribe any time.
Variants and similar numbers
VERIFY BEFORE ORDERING| Catalog number | Relationship | Sellers | Median | vs this part |
|---|---|---|---|---|
| 42SMP-7021-QD | extends this number | 2 | $884 | +119% |
Frequently asked
Is the 42SMP-7021 still available?
Allen-Bradley lists the 42SMP-7021 as discontinued. 6 sellers still offer remaining or refurbished stock, currently from $180. Allen-Bradley designates 42KD-B2LAR1-A2 as the replacement.
How much does a 42SMP-7021 cost?
As of 9 Oct 2026, the Allen-Bradley 42SMP-7021 is listed from $180 to $884 across 6 sellers. The median asking price is $404. Prices are published seller asking prices and are refreshed monthly.
Who sells the 42SMP-7021?
6 sellers currently list the 42SMP-7021, including eBay, eBay - chronocollectiblesllc, DO Supply. 3 of them are specialist industrial distributors. The lowest current asking price is $180 from eBay.
Why do 42SMP-7021 prices vary so much?
The highest asking price for the 42SMP-7021 is 4.9× the lowest. Industrial parts trade in a market where new surplus, refurbished stock and list-price sellers coexist without a shared price reference, so identical catalog numbers are listed at very different prices.
