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The Durastar 4" x 1-1/4" Polyolefin Donut Wheel is expertly engineered for durability, performance, and versatility in demanding environments. Crafted from high-impact polyolefin, this wheel resists chemicals, water, and general wear—making it an excellent choice for both indoor and outdoor use.
With a 350 lbs load capacity and a 3/8" plain bore, it offers an ideal balance between strength and maneuverability. The donut-style tread ensures even weight distribution, while the smooth bore allows seamless compatibility with a wide range of axle fittings.
Suited for carts, dollies, mobile racks, and general-purpose equipment, the Durastar Polyolefin Donut Wheel is a go-to solution for those seeking lightweight, corrosion-resistant performance without sacrificing strength or stability.
Upgrade your mobility solutions with the Durastar 4" Polyolefin Donut Wheel — designed for durability, reliability, and seamless performance across various commercial and industrial 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
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.
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.
Engineered for durability, mobility, and performance, the Durastar 4" x 1-1/4" Polyolefin Donut Wheel is the ideal choice for industrial, commercial, and utility cart applications. With its lightweight yet impact-resistant polyolefin construction, this wheel delivers dependable support in a wide range of environments—from warehouses to manufacturing facilities.
This wheel features a donut-style tread that enhances stability and ensures even weight distribution under load. The 1-1/4" tread width and 4" diameter offer a reliable footprint for smooth, controlled mobility. Designed with a 3/8" plain bore, it integrates seamlessly with standard axle assemblies, making it a versatile component for new builds or replacement needs.
The high-impact polyolefin material provides superior resistance to water, oils, chemicals, and common solvents, ensuring long service life even in harsh operating conditions. Its 350 lbs load capacity allows it to support medium to heavy-duty applications while maintaining structural integrity over time.
Whether you’re outfitting dollies, mobile racks, or service carts, this wheel delivers smooth rolling and minimal maintenance with no bearings to grease or seals to replace.
Thanks to its lightweight design, chemical resistance, and easy rolling characteristics, the Durastar polyolefin donut wheel is perfect for:
Trust in a wheel that combines strength, simplicity, and reliability. Choose the Durastar 4" x 1-1/4" Polyolefin Donut Wheel to enhance your mobility systems and reduce downtime across your operations.
This 4" x 1-1/4" Polyolefin Industrial Replacement Wheel – 350 lb is rated to 350 lbs per wheel. Divide the total load across the number of wheels in your rig and keep working loads within about 75-80% of the rating for continuous use.
This is a Polyolefin wheel. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
4" diameter x 1-1/4" tread width. Verify your axle diameter and hub/bore length against your existing wheel before ordering.
Yes. Most wheels can be paired with a swivel or rigid rig to build a complete caster. Tell us your mount and load and we will spec the rig - request it on our bulk pricing page.
Rated for -20°F to 180°F. Operating outside the rated range can shorten wheel life and reduce capacity.
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).
$11.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 1-1/4" |
| Load & Performance | |
| Wheel Capacity | 350 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" Solid Polyurethane Swivel Caster 3-1/8" x 4-1/8" Plate – 350 lb | CasterHQ
4" x 1-1/4" · 350 lbs
$28
4" Polyurethane Swivel Caster – 350 lb | 1/2" x 1-1/2" Threaded Stem | CasterHQ
4" x 1-1/4" · 350 lbs
$23
4" High Temp Nylon Swivel Caster – 350 lb | 1/2" x 1-1/2" Threaded Stem
4" x 1-1/4" · 350 lbs
$31
View all 4′ x 1-1/4′ 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 | |
|---|---|---|---|---|---|---|
| 325 lbsLighter duty | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $18.00 | View → | |
| 325 lbsLighter duty | 4" × 1-1/4"Polyurethane | Swivel | 6-1/4" | $29.00 | View → | |
| 350 lbs | 4" × 1-1/4"Polyolefin | — | — | $11.00 | Viewing | |
| 350 lbsSame capacity | 4" × 1-1/4"Blue Solid Polyurethane | Swivel | 5-1/8" | $28.00 | View → | |
| 350 lbsSame capacity | 4" × 1-1/4"Blue Solid Polyurethane | Swivel | 5-1/8" | $23.00 | View → |
