Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.
Experience superior mobility with the Durastar Xtreme Heavy Duty 91 Series caster, engineered for heavy-duty applications. The 8" x 3" ductile steel wheel offers exceptional durability and performance, making it perfect for demanding environments. With a robust 6000 lb load capacity, this caster ensures stability and reliability in challenging conditions.
The 4-1/2" x 6-1/4" top plate is designed for easy installation, ensuring a secure and stable fit on your equipment. Whether you're working in a factory, warehouse, or industrial environment, the Durastar Xtreme Heavy Duty Caster provides the strength and versatility you need to handle the toughest jobs.
With its swivel design, this caster offers enhanced maneuverability, allowing for easy direction changes and precise movement, even in tight spaces. Whether you're moving heavy machinery or large equipment, this caster will perform with ease.
Upgrade your industrial equipment with the Durastar Xtreme Heavy Duty 91 Series caster. Designed for performance and built to last, it provides unmatched durability and ease of movement, making it the perfect choice for your toughest applications.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Because of its size and weight, this item typically ships LTL freight on a pallet. Smaller add-on items may ship parcel. Freight cost is calculated by destination and shown before payment, or quoted for large orders.
Payment & procurement terms
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.
The Durastar Xtreme Heavy Duty 91 Series 8" x 3" Ductile Steel Swivel Caster is engineered to provide long-lasting performance in demanding industrial and warehouse environments. With a robust 6000 lb load capacity, this caster is designed for heavy-duty applications, ensuring superior durability and strength. Built with high-strength ductile steel, it can withstand the toughest conditions, making it the ideal choice for businesses that rely on mobility solutions for their heavy machinery and equipment.
Designed for versatility, the 4-1/2" x 6-1/4" top plate ensures that the caster can easily fit a wide range of equipment. This compatibility makes it a go-to choice for businesses in various industries, from manufacturing and distribution to material handling and industrial machinery.
The Durastar Xtreme Heavy Duty 91 Series caster is perfect for use in various applications, including:
At Durastar, we prioritize the quality and reliability of our products. The Xtreme Heavy Duty 91 Series caster is crafted with precision and care, ensuring that it meets the highest industry standards. Our commitment to excellence ensures that you can rely on our casters to perform well under pressure, reducing downtime and boosting efficiency in your operations.
Upgrade your operations today with the Durastar Xtreme Heavy Duty 91 Series Caster. With its robust design, easy installation, and superior load capacity, this caster is the perfect choice for your toughest mobility needs.
This 8" x 3" Ductile Steel Swivel Caster – 6000 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 Ductile Iron wheel with a 3" tread width. Steel / iron wheels give maximum capacity and durability on smooth, hard industrial floors and tolerate heat.
This caster uses a top-plate mount with a 4-1/2" x 6-1/4" plate and a 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" 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 Swivel caster. Swivel casters rotate 360 degrees for full maneuverability. 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 Ductile Iron wheel performs best on smooth, hard industrial floors. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 10-1/8". 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).
$252.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 8" |
| Wheel Tread Width | 3" |
| Overall Height | 10-1/8" |
| Plate Size | 4-1/2" x 6-1/4" |
| Bolt Hole Pattern | 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 6000 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Ductile Iron |
| Wheel Core Material | Steel |
| Frame Material | Zinc Plated Steel |
8" x 3" Ductile Steel Swivel Caster – 6000 lb | 5-1/4" x 7-1/4" Top Plate | CasterHQ
8" x 3" · 6000 lbs
$469
8" x 3" Red Ductile Iron Rigid Kingpinless Caster – 6,000 lb | CasterHQ
8" x 3" · 6000 lbs · Direct fit
$201
8" x 3" Red Ductile Iron Swivel Kingpinless Caster – 6,000 lb | CasterHQ
8" x 3" · 6000 lbs · Direct fit
$219
View all 8′ 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 | |
|---|---|---|---|---|---|---|
| 3500 lbsLighter duty | 8" × 3" | Swivel | 10.5" | $343.00 | View → | |
| 5500 lbsLighter duty | 8" × 3"Polyurethane | Swivel | 8" | $373.00 | View → | |
| 6000 lbs | 8" × 3"Ductile Iron | Swivel | 10-1/8" | $252.00 | Viewing | |
| 6000 lbsSame capacity | 8" × 3"Ductile Iron | Rigid | 10-1/8" | $201.00 | View → | |
| 6000 lbsSame capacity | 8" × 3"Ductile Iron | Swivel | 10-1/8" | $219.00 | View → |





Search
