Specialty Casters
Gate Casters
BBQ Pit & Smoker Casters
Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters
The Durastar Posi-Lock Brake is a dependable braking solution for 4" x 1-1/4" caster wheels in the trusted 21 and 24 Series. Designed for maximum stability and safety, this brake system delivers firm locking action to prevent unwanted caster movement, even on inclined surfaces or in active environments.
Its positive engagement mechanism ensures that once locked, your equipment stays securely in place. Whether used on carts, dollies, or mobile workstations, this Posi-Lock Brake enhances workplace safety and operator confidence during transport and stationary use.
Built from rugged, wear-resistant materials, the Durastar Posi-Lock Brake is made to withstand frequent use in industrial and commercial settings. With precision fitment to 4" x 1-1/4" wheels in the 21 and 24 Series, installation is seamless, making it an ideal upgrade or replacement component.
Equip your caster wheels with the Durastar Posi-Lock Brake for dependable, user-friendly braking performance. Maintain safety, stability, and control—every time you lock your wheels.
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.
Enhance safety and mobility control with the Durastar Posi-Lock Brake, engineered for compatibility with 4" x 1-1/4" caster wheels in the trusted 21 and 24 Series. This high-performance brake system is designed for industrial and commercial environments where secure stopping power and dependable stability are essential.
The Posi-Lock mechanism offers precise, positive engagement that keeps equipment stationary when needed—reducing the risk of unexpected movement. Whether you’re working on sloped surfaces or navigating tight warehouse aisles, this brake helps prevent accidents and boosts operational confidence.
Ideal for a wide range of mobile equipment—including carts, dollies, and workstations—the Posi-Lock Brake adds functionality to any setting requiring stability under load. Its design integrates seamlessly with Durastar's 21 and 24 Series casters, allowing for fast, tool-friendly installation or replacement.
Manufactured from rugged, wear-resistant materials, this brake system is built to endure repeated use in demanding environments. The foot-operated engagement makes it ergonomic and efficient, allowing users to lock and unlock wheels with ease—saving time and reducing strain.
When reliability and long-term value matter, the Durastar Posi-Lock Brake stands out as a dependable solution. Trusted by professionals across industrial and commercial sectors, this brake delivers consistent stopping power and exceptional control where it’s needed most.
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 | |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Frame Material | Zinc Plated Steel |
4" x 1-1/4" Polyurethane Total Lock Caster – 300 lb | 1/2"-13 Stem | CasterHQ
4" x 1-1/4"
$110
4" Thermoplastic Rubber Swivel Caster – 250 lb | 1/2" Threaded Stem | CasterHQ
4" x 1-1/4" · 250 lbs
$17
4" x 1-1/4" Gray TPR Polyolefin Industrial Replacement Wheel – 250 lb | CasterHQ
4" x 1-1/4" · 250 lbs
$12
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 | |
|---|---|---|---|---|---|---|
| — | 4" × 1-1/4" | — | — | $11.00 | Viewing | |
| 250 lbsHeavier duty | 4" × 1-1/4"Gray Rubber | Swivel | 5-1/8" | $17.00 | View → | |
| 250 lbsHeavier duty | 4" × 1-1/4"Gray Rubber | — | — | $12.00 | View → | |
| 250 lbsHeavier duty | 4" × 1-1/4"Gray Rubber | Swivel with Total Lock Brake + brake | — | $24.00 | View → | |
| 260 lbsHeavier duty | 4" × 1-1/4"Polyurethane | Swivel | 4-1/8" | $14.00 | View → |
