1 (866) 313-2180
SALES@FORKLIFTTIRE.COMForklift & Industrial Inner Tubes
Shop inner tubes for pneumatic tube-type forklift and industrial tires, organized by valve stem type. Each tube is designed to hold air inside a pneumatic tire and must match your tire size, valve stem type, and rim hole configuration exactly.
Inner tubes are a critical component of tube-type tire assemblies — the wrong tube size or valve type will not install or function correctly. Use this page to find the correct replacement by valve type first, then match the tire size.
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 by Valve Stem Type
Inner tubes are organized by valve stem type because this is the most common source of ordering mistakes. The valve must match your wheel's access hole in size, angle, and clearance. Select your valve type below to see available sizes.
TR75A / TR440
85° bend • 150 psi max
Trucks & industrial
TR77A / TR442
Offset metal clamp-in
Industrial applications
TR78A / TR444
Straight metal clamp-in
Industrial applications
TR175A / TR443
Offset clamp-in
Forklift & industrial
TR179A / TR445
Offset clamp-in
Forklift & industrial
TR218A
Straight metal stem
OTR & industrial
TR220A
Straight metal stem
OTR & industrial
TR300
Large bore straight
Heavy equipment
TR13
Straight rubber snap-in
Small equipment
TR15
Straight metal
Forklift & industrial
TRJS2
70° bend • 60 psi max
Industrial trucks & trailers
TRJ1175C
Large bore clamp-in
OTR & loader applications
How a Tube-Type Tire Assembly Works
A pneumatic tube-type tire assembly is made up of three components that work together:
| Component | Function | Shop |
|---|---|---|
| Pneumatic Tire | The outer casing that contacts the ground — provides traction, load support, and puncture resistance | Shop Pneumatic Tires |
| Inner Tube | Holds air pressure inside the tire — must match the tire size and have the correct valve stem for the wheel | You are here |
| Liner Flap | Sits between the tube and wheel rim — protects the tube from friction, pinching, and sharp rim edges | Shop Liner Flaps |
When replacing an inner tube, check whether the liner flap also needs replacement. A damaged or missing flap can cause premature tube failure from rim contact.
Important: The valve stem type must match your wheel's rim hole exactly — in size, angle, and clearance. Even if the tube size is correct, the wrong valve will not install or function properly. If you are unsure which valve type your wheel uses, check the current tube or contact us with photos of the valve and rim hole.
How to Choose the Right Inner Tube
Follow these steps to identify the correct replacement tube:
- Step 1: Identify the valve stem type — Look at the valve on your current tube or check the wheel's rim hole. The valve family (TR75A, TRJS2, TR15, etc.) determines which subcategory to shop
- Step 2: Match the tire size — The tube must match the size of the pneumatic tire it sits inside. Common forklift sizes include 6.00-9, 6.50-10, 7.00-12, 8.25-15, and 28x9-15
- Step 3: Confirm rim hole compatibility — Some valves require specific rim hole diameters. This information is listed on each valve subcategory page
- Step 4: Check whether you need a liner flap — Most tube-type assemblies use a liner flap between the tube and rim. If your flap is worn or damaged, replace it at the same time
Common Forklift Inner Tube Sizes
The most commonly ordered forklift inner tube sizes include:
5.70x8 6.50x10 6.90x9 7.00x12 7.00x15 8.25x15 8.25x20 18x7-8 21x8-9 28x9-15
Larger OTR and loader sizes — including 15.5x25, 16.00x25, 20.5x25, 23.5x25, and 29.5x25 — are also available in select valve types.
Also Shopping for Other Parts?
Before Ordering
Always confirm the following before placing your order:
- Tire size — must match the pneumatic tire the tube sits inside
- Valve stem type — must match the wheel rim hole in size, angle, and clearance
- Rim or wheel configuration — split-rim, lockring, or drop center
- Whether a liner flap is also needed — check the flap condition when replacing the tube
Verify exact tire size and fitment before ordering.
Need help? Call 1 (866) 313-2180 or text photos to (310) 341-4694 with your tire size, valve type, and wheel photos.
Frequently Asked Questions
How do I know which valve stem type I need?
Check the valve on your current inner tube — it will have a marking or you can identify the shape and angle. Bent valves (like TR75A and TRJS2) are angled for clearance in tight rim access areas. Straight valves (like TR15 and TR218A) pass straight through the rim hole. If you are unsure, send us a photo of your current valve and rim hole and we can identify the correct type.
What is a liner flap and do I need one?
A liner flap is a rubber strip that sits between the inner tube and the wheel rim. It protects the tube from friction, pinching, and sharp rim edges that could cause punctures. Most tube-type forklift tire assemblies use a liner flap. If you are replacing a tube, inspect the flap and replace it if it shows wear, cracking, or damage. Shop liner flaps here.
Can I use an inner tube with a solid resilient tire?
No. Inner tubes are only used with pneumatic tube-type tires. Solid resilient tires, cushion rubber press-ons, and polyurethane press-ons do not use inner tubes. If you are switching from pneumatic to solid, you will not need a tube or flap.
Do inner tubes come with a liner flap?
No. Inner tubes and liner flaps are sold separately. If you need both, add the matching liner flap to your order. Ordering 2 or more items qualifies for the 7.5% quantity discount, and 4 or more items qualifies for 15%.
What sizes do you carry?
We stock inner tubes for common forklift sizes (5.70x8 through 28x9-15) as well as larger OTR and loader sizes up to 29.5x29. Available sizes vary by valve type — select your valve subcategory to see which tire sizes are in stock.
Is shipping included?
Yes. Free ground freight is included for deliveries to commercial addresses in the contiguous U.S.