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SALES@FORKLIFTTIRE.COMIndustrial Tire O-Rings
Shop industrial tire O-rings for split-rim and multi-piece wheel assemblies. These O-rings are rubber sealing components that sit in the bead seat area of a serviceable wheel, creating an airtight seal between the rim base and the tire bead. Without a properly seated O-ring, the assembly cannot hold air pressure.
All O-rings are sold as 2-packs, manufactured to major OEM specifications using spliced sonic weld construction with a service temperature range of -40°F to 180°F.
Save 7.5% on 2–3 items | Save 15% on 4+ items — automatic discount in cart.
Free ground freight to commercial addresses in the contiguous U.S.
Shop O-Rings by Wheel Size
O-rings are sized by wheel rim diameter. Select your wheel size below to view available O-rings and compatible tire sizes.
24″ O-Ring
13.00-24 • 14.00-24 • 16.9-24
17.5L24 • 19.5L24 • 21L24
25″ O-Ring
Small: 15.5-25 • 17.5-25 • 20.5-25
Large: 23.5-25 • 26.5-25 • 29.5-25
29″ O-Ring
29.5-29
33″ O-Ring
Large OTR wheel assemblies
The 25″ O-ring comes in two diameter variants — Small and Large. Small fits 15.5-25 through 20.5-25 tire sizes. Large fits 23.5-25 through 29.5-25 tire sizes. Select the correct variant at checkout based on your tire size.
O-Ring Product Specifications
All O-rings share the same construction and material specifications across all wheel sizes:
| Specification | Detail |
|---|---|
| Quantity | 2 O-rings per pack |
| Construction | Spliced with sonic weld technology |
| Service Temperature | -40°F to 180°F |
| Manufacturing Standard | Manufactured to major OEM specifications |
| Brand | Best Choice Wheels and Parts |
| Shipping | Free ground freight to commercial addresses |
Tire Size Fitment by Wheel Size
The table below shows which tire sizes are compatible with each O-ring wheel size. Always confirm your tire size and wheel configuration before ordering.
| O-Ring Size | Compatible Tire Sizes | Notes |
|---|---|---|
| 24″ | 13.00-24, 14.00-24, 14.9-24, 16.9-24, 17.5L24, 18.4-24, 19.5L24, 21L24 | Select correct diameter at checkout |
| 25″ Small | 15.5-25, 17.5-25, 20.5-25 | Smaller diameter variant |
| 25″ Large | 23.5-25, 26.5-25, 29.5-25 | Larger diameter variant |
| 29″ | 29.5-29 | — |
| 33″ | Large OTR applications | — |
What an O-Ring Does in a Wheel Assembly
In a multi-piece or split-rim wheel, the rim is built from separate components that bolt or lock together. The O-ring sits in a groove on the rim base and creates an airtight seal between the rim components and the tire bead. Without this seal, the assembly leaks air — even if the tire and tube are in good condition.
O-rings are used specifically in OTR (off-the-road) and large industrial wheel assemblies where the wheel is designed to be disassembled for tire service. These wheels are common on loaders, graders, earthmoving equipment, and large industrial vehicles with 24″ to 33″ rim diameters.
When to Replace an O-Ring
O-rings should be inspected and replaced during any tire or wheel service. Common replacement triggers include:
- Tire replacement or remounting — the O-ring is exposed during disassembly and should be replaced as a maintenance item
- Air pressure loss at the rim — slow leaks at the bead seat area often indicate an O-ring that has lost its seal
- Visible wear, cracking, or deformation — rubber degrades from heat cycling, UV exposure, and compression set over time
- Multi-piece wheel rebuild — anytime the wheel is disassembled, the O-ring should be replaced before reassembly
O-rings are inexpensive relative to the cost of a tire service call. Replacing the O-ring during scheduled service avoids a return trip for a seal failure.
Need Related Parts?
If you are servicing a complete wheel and tire assembly:
Before Ordering
Before ordering, always confirm:
- Wheel rim diameter — 24″, 25″, 29″, or 33″
- Tire size mounted on the wheel — this determines which O-ring diameter variant you need (especially for 25″ wheels)
- Wheel type — split rim or multi-piece assembly
- O-ring condition — if the existing ring shows any wear, cracking, or compression set, replace it
Verify exact tire size and fitment before ordering.
Need help? Call 1 (866) 313-2180 or text photos to (310) 341-4694 with your wheel size and tire size.
Frequently Asked Questions
What does a tire O-ring do?
A tire O-ring creates an airtight seal in a multi-piece or split-rim wheel assembly. It sits in a groove on the rim base between the rim components and the tire bead. Without a properly seated O-ring, the wheel assembly cannot hold air pressure regardless of the condition of the tire or tube.
How do I know what size O-ring I need?
O-rings are sized by wheel rim diameter — 24, 25, 29, or 33 inches. Check the markings on your wheel or measure the rim diameter. For 25-inch wheels, you also need to determine whether your tire size requires the Small variant (15.5-25 through 20.5-25) or the Large variant (23.5-25 through 29.5-25).
Why does the 25-inch O-ring have two variants?
The 25-inch rim accommodates a wide range of tire widths, from 15.5-25 up to 29.5-25. The bead seat diameter differs between narrower and wider tires on the same rim size, so the O-ring must match. Small covers 15.5-25, 17.5-25, and 20.5-25. Large covers 23.5-25, 26.5-25, and 29.5-25. Select the correct variant at checkout.
How often should O-rings be replaced?
O-rings should be replaced every time the wheel is disassembled for tire service. They are a low-cost maintenance item, and reusing a worn O-ring risks seal failure and air loss after the wheel is reassembled. All O-rings on this page are sold as 2-packs for this reason.
What equipment uses these O-rings?
These O-rings are used in large industrial and OTR wheel assemblies found on loaders, graders, earthmoving equipment, and other vehicles with serviceable multi-piece or split-rim wheels in 24-inch through 33-inch rim diameters.
Can I reuse an O-ring if it looks fine?
It is not recommended. O-rings develop compression set and micro-cracking from heat cycling and sustained pressure that may not be visible. A failed O-ring after reassembly means disassembling the wheel again. At the cost of an O-ring versus the cost of a service call, replacement during every tire service is standard practice.