The best 4-inch spacers for a truck depend on whether you mean air-spring spacers or wheel spacers. The first three products below are 4-inch air-spring spacers for lifted trucks; they help close the gap between an air spring and axle. The wheel-spacer listings are different products and are not 4 inches thick. The Yoursme and Misakomo kits are options to compare for air-spring systems, while OMT is a narrower wheel-spacer alternative for listed bolt-pattern fitments.
| Product | Best suited for | Key distinction |
|---|---|---|
| Yoursme 52440 | Lifted trucks with bellows-style air springs | 4-inch straight spacer; steel construction |
| Misakomo 52240 | Specified LoadLifter air-spring series | 4-inch angled or level options listed |
| OMT 5×4.5 wheel spacers | Vehicles matching the stated fitment | Adds 2 inches to axle track, not a 4-inch spacer |
| GAsupply 10mm wheel spacers | Buyers seeking a thin wheel spacer | 10 mm thick; vehicle fitment details not supplied |
| Wheel Accessories Parts ATV spacers | Specified Polaris ATV/UTV applications | Not a truck or 4-inch spacer |
Yoursme 4-Inch Air Spring Spacers
Best for: Owners of lifted trucks with compatible bellows-style air springs who need a straight 4-inch spacer. The product listing identifies compatibility with most bellows-style air springs, including LoadLifter 5000 and 7500 XL series.
The spacer is made from CNC-machined steel and has a black powder-coated surface described as resistant to rust and corrosion. Its stated purpose is to remove slack between the air bag and axle, which can help maintain a controlled ride on an already lifted truck. It is selected for its explicit 4-inch straight configuration and heavy-duty material description.
Limitation: The listing says “most” bellows-style systems, not every system. Verify the air-spring model and required spacer shape before ordering.
Misakomo 52240 Air Bag Spacer Kit
Best for: Buyers whose truck has a listed LoadLifter air-spring series and who want a choice of 4-inch angled or level spacers. The stated fitment includes LoadLifter 5000, 5000 Ultimate, 5000 Ultimate Plus, and 7500 XL, along with most bellows-style systems.
The listing describes the kit as an alternative to OEM part numbers 52140 and 52440. It says the spacer removes slack between the air bag and axle and can withstand a force of 10 tons. The choice between angled and level configurations makes this a useful comparison against a straight-only spacer.
Limitation: The available information does not specify the included hardware or which spacer orientation a particular truck requires. Confirm the configuration against the vehicle and air-spring setup.
OMT 5×4.5 Wheel Spacers
Best for: Buyers who mean wheel spacers rather than air-spring spacers and whose vehicle matches the listed 5×4.5 fitment. Listed applications include select Ford Ranger years, as well as various Ford and Jeep models.
This set adds 2 inches to the axle track, according to the product information. The spacers are made from T6 aircraft-grade aluminum and include zinc-coated, heat-treated 1/2-inch-20 bolts. It is selected as the closest listed wheel-spacer option for certain trucks, but it is not a 4-inch-thick spacer.
Limitation: The listing gives a specific bolt pattern and vehicle application list. Do not assume fitment based only on the truck’s make; verify the exact year, hub bore, and wheel specifications.
GAsupply 10mm Wheel Spacers
Best for: Buyers seeking a thin wheel spacer for a compatible four- or five-lug wheel. The product name specifies a 10mm thickness and a four-piece set.
This listing is included as a wheel-spacer comparison, not as a 4-inch truck spacer. Its stated broad category is “most 4 & 5 lug wheels,” but the supplied product details do not provide a vehicle-specific fitment list or additional specifications.
Limitation: The 10mm thickness is far less than 4 inches, and the available information is not enough to confirm fitment on a particular truck. Check the full product specifications before considering it.
Wheel Accessories Parts ATV Spacers
Best for: Buyers shopping for the specifically described Polaris ATV or UTV application, rather than a truck. The product is a four-piece spacer set with a 4-on-156mm pattern, 1-inch thickness, 130mm hub, and 3/8-inch thread studs.
These dimensions make it distinct from both a 4-inch air-spring spacer and the 2-inch OMT wheel spacers. It is included to clarify that spacer listings can refer to very different vehicle types and measurements.
Limitation: The product name identifies it for Polaris ATV/UTV fitment; it is not presented as a truck spacer. Do not select it for a truck based on the word “spacer” alone.
Buying Guide: Choosing the Right Truck Spacer
Do you need an air-spring spacer or a wheel spacer?
An air-spring spacer sits between an air bag and axle, helping address the gap created when a truck is lifted. A wheel spacer mounts at the wheel hub and changes the wheel’s position outward. These products serve different purposes and are not interchangeable. If your search is about a 4-inch air bag spacer, focus on air-spring fitment; if it is about wheel stance, compare wheel bolt pattern, hub bore, and thickness.
How do you verify a 4-inch air spacer will fit?
Check the air-spring brand and series, the spacer’s height, and whether the required configuration is straight, angled, or level. The Yoursme listing specifies a 4-inch straight spacer. Misakomo lists 4-inch angled or level options. Confirm the exact configuration against the truck’s installed air-spring setup rather than relying only on a general “most systems” claim.
What should you check for wheel spacers?
Match the bolt pattern, hub bore, stud or bolt thread, thickness, and vehicle application. A 5×4.5 pattern does not automatically fit every truck, and a 10mm spacer is not equivalent to a four-inch spacer. Review the complete specifications and seek qualified installation guidance when needed.
Frequently Asked Questions
Are 4-inch air-spring spacers the same as 4-inch wheel spacers?
No. Air-spring spacers address the distance between an air bag and axle. Wheel spacers mount at the hub and move the wheel outward. Confirm which type you need before purchasing.
Can I use a 4-inch air spacer on any lifted truck?
No. Fit depends on the installed air-spring system and spacer configuration. Check the product’s stated series and verify the required height and shape.
Does the OMT listing provide a 4-inch wheel spacer?
No. Its description says the set adds 2 inches to the axle track. It is a wheel-spacer option, not a 4-inch air-spring spacer.
Are the Polaris ATV spacers suitable for a pickup truck?
The supplied product description identifies them for Polaris ATV/UTV applications, not trucks. Do not assume truck compatibility.
Which listed product is the clearest match for a straight 4-inch air spacer?
The Yoursme product explicitly identifies itself as a 4-inch straight air-spring spacer. Confirm compatibility with the truck’s specific air-spring system before choosing it.