I bought a number of power tools from Delta prior to and around when they made the change. I find it helpful to know which models are equivalent to help in finding the same design under two model numbers to help interchanging/compatible parts. Maybe this cross reference list will help someone else. I actually own 6 of these tools on this list.
Between 2000 and 2003 Delta was acquired by Pentair and rebranded their entry level Hobbyist benchtop and floor tools to Shopmaster and changed the Delta nn-nnn model numbers to AAnnn Shopmaster model numbers while keeping the design pretty much the same except for new labeling. I with the help of AI have assembled a before and after model number list. This is important because many of these tools are now discontinued and the parts list of the before and after models are identical , helping searchers find identical models from which to scavenge parts. Because these tools are essentially the same, you can often find compatible replacement parts (like brushes, belts, or blades) listed for both model numbers. For instance, parts for the 22-540 are almost always interchangeable with the Shopmaster TP300. Or scavenging a broken 22-540 could fix your TP300.
Filter Part Numbers
If you are looking for replacement filters, the following numbers are interchangeable for these units:
professional models.
Also Drill presses:
Drill Press Rebranding List
Delta Shopmaster Model no. Crossreference
Loring Chien 2026
Loring Chien 2026
Between 2000 and 2003 Delta was acquired by Pentair and rebranded their entry level Hobbyist benchtop and floor tools to Shopmaster and changed the Delta nn-nnn model numbers to AAnnn Shopmaster model numbers while keeping the design pretty much the same except for new labeling. I with the help of AI have assembled a before and after model number list. This is important because many of these tools are now discontinued and the parts list of the before and after models are identical , helping searchers find identical models from which to scavenge parts. Because these tools are essentially the same, you can often find compatible replacement parts (like brushes, belts, or blades) listed for both model numbers. For instance, parts for the 22-540 are almost always interchangeable with the Shopmaster TP300. Or scavenging a broken 22-540 could fix your TP300.
| Tool Type | Original Delta Model | Shopmaster Rebrand |
| 12" Portable Planer | 22-540 | TP300 |
| 12.5" Portable Planer | 22-560 / 22-565 | TP305 / TP400LS |
| 1" Belt / 8" Disc Sander | 31-340 | SA180 |
| 10" Benchtop Table Saw | 36-600 | TS300 |
| 10" Compound Miter Saw | 36-075 | MS250 |
| Tool Type | Original Delta Model | Shopmaster Rebrand |
| 6" Benchtop Jointer | 37-070 | JT160 |
| 12" Benchtop Bandsaw | 28-190 | BS220LS |
| 9" Benchtop Bandsaw | 28-150 | BS100 |
| Air Cleaner | 50-860 (partial equiv.) | AP100 Triangle design with integrated work lights; 450 CFM. |
| Air Cleaner | 50-860 / 50-868 | AP200 Standard rectangular ambient air filter; 850 CFM. |
If you are looking for replacement filters, the following numbers are interchangeable for these units:
- Inner Filter (1-Micron): Part 50-859. This 3-pocket inner filter fits the
professional models.
- Outer Pre-Filter (5-Micron): Part 50-858. This fits the AP200
- AP100 Specific Filter: The triangular AP100 used a different 5-micron inner filter, part 50-877.
Also Drill presses:
Drill Press Rebranding List
| Tool Type | Original Delta Model | Shopmaster Rebrand | Key Features |
| 8" Bench Drill Press | Delta 11-950 | DP100 | 5-speed; entry-level hobbyist model. |
| 10" Bench Drill Press | Delta 11-990 | DP200 | 5-speed; popular small-shop standard. |
| 12" Bench Drill Press | Delta 11-985 | DP250 | Increased capacity and motor power over the 10". |
| 12" Laser Drill Press | Delta 17-900 (equiv.) | DP300L | Featured crosshair lasers; benchtop model DP300L. |
| 12" Var. Speed Press | Delta 11-090 (equiv.) | DP350 | Featured a Reeves-style variable speed drive DP350. |
| 16-1/2" Floor Press | Delta 17-900 | DP400 | The full-size floor model version of the Shopmaster line DP400 . |
| 1" x 30" Belt Sander | Delta 31-050 | SA150 | 1/4 HP, 3450 RPM benchtop mini sander 31-050. |
| 1" x 30" Belt / 5" Disc | Delta 31-080 | SA180 (variant) | Combination unit often sharing parts with the 1x42 line 31-080. |

LCHIEN
Loring in Katy, TX USA
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