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U-Boat Platform Truck Replacement Caster Set | 1,800 lbs Cap

Wheel
8" x 2"
Capacity
1800 lbs
Overall Height
9-1/2"
In Stock · Ships 1-2 Business Days
Quantity
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Volume pricing: 50+ saves 5% · 100+ saves 10% · 200+ saves 15% · fleet orders: request custom pricing

PO Net 30 ACH Tax-Exempt VISA AMEX DISCOVER
Business Purchasing
  • Purchase orders accepted for approved accounts
  • Net 30 terms for qualified businesses
  • ACH, credit card, and tax-exempt ordering
  • Bulk and contract pricing on fleet quantities
Jordan W., Founder Bob C., Director of Sales
Not sure this is the right spec? Jordan (Founder) and Bob (45+ years in casters) review applications before you order.
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Product Overview

U-Boat Platform Truck Replacement Wheels & Axle Kit | 1,800 lbs capacity per set


This product listing is the most common U-Boat Cart Replacement Caster Set. U-Boats are commonly seen on Platform Trucks, Stock Carts, Grocery Store Carts, etc. This listing is for two pieces of our 8" x 2" Swivel Casters with our Polyurethane on Polyolefin Wheels and four pieces of our 4" x 1-1/4" Swivel Caster with our Polyurethane on Polyolefin Wheels for a total of six replacement Casters. The Caster configuration on this listing is a direct replacement for U-Boat carts with two 8" swivel Casters for the middle of the carts and four 4" swivel casters for the corners. Industry-standard replacement wheels and a direct fitment for almost all major brand u-boat carts.

This caster setup is great for the zero-turn carts which will allow the user to turn the cart 360 degrees without having to move it forward or backward which is why the large 8" casters are also swivels which is a newer setup on certain carts but very beneficial for specific applications such as limited maneuverability and limited space.

Key Features

Direct-Fit Replacement Complete Casters for most U-boat carts that are commonly found in places like Home Depot, Lowes, & Grocery Stores
Kit includes two 8" x 2" Swivel Casters with polyurethane wheels for the middle and four 4" x 1-1/4" swivel casters with polyurethane wheels for the corners
Casters and Wheels are High Quality, Non-marking, & floor safe and roll very smooth and quiet | Casters hold up to 1,800 lbs Capacity after installation
Direct High-Quality OEM Replacement Casters| (Not Off Brand)

Ordering & Shipping Information

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

Purchase orders — accepted from approved accounts
Net 30 terms — available on approved credit
ACH & all major cards — Visa, MC, Amex, Discover
Tax-exempt — submit your resale/exemption certificate

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.

Typical transit times after shipment

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.

Need an exact freight quote or blanket PO?

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.

Frequently Asked Questions

What is the load capacity of this caster?+

This 8" & 4" Polyurethane Swivel U-Boat Caster Set · 1,800 lb set of 4 is rated to 1800 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.

What wheel does this caster use?+

This caster runs a Polyurethane wheel with a 2" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.

Is this a swivel or rigid caster, and how does the brake work?+

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.

What floors and applications is it best for?+

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.

What is the overall mounted height?+

The overall height (floor to top of plate or stem) is 9-1/2". Account for it when checking equipment clearance, dock height, and ergonomic working height.

How do I order, and what are the terms?+

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).

8
8" & 4" Polyurethane Swivel U-Boat Caster Set · 1,800 lb set of 4 | CasterHQ

$205.00

Technical Specifications

Specifications

Identification
Part Number / SKUHQ-UB-RCS
Core
Load Capacity1800 lbs
Wheel Diameter8"
Wheel Width2"
Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder).9-1/2"
Rig TypeSwivel
BrakeNo Brake
Wheel
Wheel MaterialPolyurethane
Wheel Core MaterialPolyolefin
Construction
Frame / FinishZinc Plated Steel
Reference Dimensions
9-1/2" OVERALL HEIGHT 8" x 2" WHEEL DIA x W
Overall Height9-1/2"
Wheel8" x 2"
Wheel MaterialPolyurethane
Illustrative caster profile drawn to this item's proportions - dimensions are manufacturer specification values. Confirm against the technical table before ordering.
Will This Caster Handle Your Load?
Enter your loaded weight. We derate to 3 effective casters on a 4-caster rig, per industry practice for uneven floors.
Rated capacity: 1800 lbs per caster. For dynamic loads, towing, or debris-strewn floors, apply additional safety factor · full engineering tools →

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