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Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
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Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.
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New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
This 6" x 3" Green Poly on Cast Iron Rigid Dual Wheel Caster – 6,000 lb is rated to 6000 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster runs a Polyurethane wheel with a 3" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
This caster uses a top-plate mount with a 5-1/4" x 7-1/4" plate and a 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Rigid caster. Rigid casters track straight for directional stability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
The Polyurethane wheel performs best on smooth to semi-smooth floors including sealed concrete, tile, and epoxy. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 8-1/16". Account for it when checking equipment clearance, dock height, and ergonomic working height.
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$1,008.00
| Dimensions & Mounting | |
| Wheel Diameter | 6" |
| Wheel Tread Width | 3" |
| Overall Height | 8-1/16" |
| Plate Size | 5-1/4" x 7-1/4" |
| Bolt Hole Pattern | 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8" |
| Mount Style | Plate |
| Rig Type | Rigid |
| Load & Performance | |
| Wheel Capacity | 6000 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Wheel Core Material | Iron |
| Frame Material | Zinc Plated Steel |
6" x 3" Red Ductile Iron Rigid Kingpinless Caster – 6,000 lb | CasterHQ
6" x 3" · 6000 lbs
$158
6" x 3" Green Poly on Cast Iron Swivel Dual Wheel Kingpinless Caster – 6,000 lb | CasterHQ
6" x 3" · 6000 lbs · Direct fit
$1,800
6" x 3" Red Ductile Iron Swivel Kingpinless Caster – 4800 lb | CasterHQ
6" x 3" · 4800 lbs
$200
View all 6′ x 3′ casters & wheels →
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 4400 lbsLighter duty | 6" × 3"Cast Iron | Rigid | — | $754.00 | View → | |
| 4800 lbsLighter duty | 6" × 3"Ductile Iron | Swivel | 7-1/2" | $200.00 | View → | |
| 6000 lbs | 6" × 3"Polyurethane | Rigid | 8-1/16" | $1,008.00 | Viewing | |
| 6000 lbsSame capacity | 6" × 3"Polyurethane | Swivel | 8-1/16" | $1,800.00 | View → | |
| 6000 lbsSame capacity | 6" × 3"Ductile Iron | Rigid | 7-1/2" | $158.00 | View → |
