Colson · Military and tactical heavy-duty
AvailableCOLSON 4 SERIES DEFENDER
The Defender variant of the 4 Series is engineered for military, tactical, and security applications. Reinforced kingpin design, tactical-grade finish, and proven service in defense logistics worldwide.
SKU Count
7,498
Capacity
300–2,000 lbs
Wheel ⌀
4″–8″
Mounts
2 types
Product Photography
COLSON 4 SERIES DEFENDER Gallery
8 photosCommon Applications
Where It's Specified
- Military mobile platforms
- Tactical equipment carts
- Defense logistics fleets
- Security and aerospace defense
SKU catalog · live filter
Browse 7,498 SKUs
Filter by capacity, wheel diameter, tread, mount, brake. Stocked or quoted from Miami.
Showing 12of 7,498 SKUs
| Part # | Capacity | Wheel ⌀ | Tread | Mount | Brake | Bearing | Action |
|---|---|---|---|---|---|---|---|
| 4.04189.459 COND | 300 lbs | 4″ | Performa Rubber (Condutive/Flat) | Top Plate Swivel | None | Roller | |
| 4.06189.551 EL TG1 | 450 lbs | 6″ | Performa Rubber (Round/Grey) | Top Plate Swivel | None | Delrin | |
| 4.05189.451 BRK1 TG1 | 500 lbs | 5″ | Performa Rubber (Flat/Grey) | Top Plate Swivel | Tread Lock Brake (BRK1) | Delrin | |
| 4.06189.451 MTG81 EL | 600 lbs | 6″ | Performa Rubber (Flat/Grey) | Top Plate Swivel | None | Delrin | |
| 4.08189.555 MTG81 LH10.125 EL | 600 lbs | 8″ | Performa Rubber (Round/Grey) | Top Plate Swivel | None | Pedestal Precision Ball | |
| 4.08189.455.2 MTG81 BRK1 TG1 | 675 lbs | 8″ | Performa Rubber (Flat/Black) | Top Plate Swivel | Tread Lock Brake (BRK1) | Pedestal Precision Ball | |
| 4.05189.4F1 MTG81 TG1 | 750 lbs | 5″ | Trans-forma HD (Flat) | Top Plate Swivel | None | Delrin | |
| 4.08189.832 MTG81 BRK1 TG1 | 900 lbs | 8″ | Polyolefin | Top Plate Swivel | Tread Lock Brake (BRK1) | Plain | |
| 4.08189.921 MTG61 EL TG1 | 1,000 lbs | 8″ | Polyurethane HI-TECH | Top Plate Swivel | None | Delrin | |
| 4.06189.931.3 MTG61 BRK1 | 1,200 lbs | 6″ | Moldon Nylon (Aluminum Core) | Top Plate Swivel | Tread Lock Brake (BRK1) | Delrin | |
| 4.05189.235 | 1,400 lbs | 5″ | Forged Steel | Top Plate Swivel | None | Pedestal Precision Ball | |
| 4.08189.931 MTG81 BRK3 LH10.125 EL | 1,500 lbs | 8″ | Moldon Polyurethane (Aluminum Core) | Top Plate Swivel | Side Lock Brake (BRK3) | Delrin |
Showing 12 featured SKUs · refine filters to load more
Need help specifying?
Caster specification is a multi-variable problem: load, floor type, tread material, mounting, environment, brake. We've solved it tens of thousands of times since 1955. Call us with your application — we'll spec the right SKU with you.