The best 37-inch UTV tires depend on your required tire width, wheel diameter, and preferred construction. These five System 3 radial tire sets all include four tires, but their sizes and ply ratings differ. The XTR370 is an 8-ply option in 37×10-15, while the RX600 is a 10-ply option in that same size. Other choices include 37×9.5-22 and 37×12-24 models. Confirm the exact size your vehicle and wheels require before choosing.
| Product | Size | Construction detail | Best suited for |
|---|---|---|---|
| System 3 XTR370 | 37×10-15 | 8-ply radial | Buyers needing this size with an 8-ply rating |
| System 3 RC500S Sticky | 37×10-15 | 8-ply radial | Buyers seeking the named Sticky model |
| System 3 XT400 | 37×9.5-22 | 10-ply radial | Buyers whose setup calls for this narrower size and wheel diameter |
| System 3 RX600 | 37×10-15 | 10-ply radial | Buyers comparing a 10-ply option in 37×10-15 |
| System 3 XT400W | 37×12-24 | 10-ply radial | Buyers needing the listed 24-inch wheel size and 12-inch width |
System 3 XTR370 37×10-15

This full set contains four System 3 XTR370 radial ATV/UTV tires in size 37×10-15. The listed construction is 8-ply. It is best for buyers whose vehicle setup calls for a 37-inch tire that is 10 inches wide and fits a 15-inch wheel, and who prefer the XTR370 model.
Choose this if 8-ply construction and the XTR370 name match your needs. The product information does not specify tread details, load capacity, or intended terrain, so compare the full tire specifications with your vehicle requirements. Avoid selecting it based on the 37-inch diameter alone; the 15-inch wheel size and 10-inch width also need to match.
System 3 RC500S Sticky 37×10-15

The RC500S Sticky set includes four 8-ply radial ATV/UTV tires, each listed as 37×10-15. It is best for buyers who want the RC500S Sticky model in this particular size and need four tires for a set.
The key comparison with the XTR370 is the model designation: both listings specify four 8-ply radial tires in 37×10-15, but the product names differ. The supplied information does not explain what “Sticky” means in terms of compound, traction, or use, so do not assume a specific performance advantage from the name alone. Check the manufacturer’s detailed specifications if those characteristics matter to your purchase.
System 3 XT400 37×9.5-22

This four-tire XT400 set is listed as 37×9.5-22 and uses 10-ply radial construction. It is best for buyers whose vehicle and wheels call for a 22-inch wheel diameter and a 9.5-inch tire width. Compared with the 37×10-15 products, it has a different width and wheel size, making exact fitment especially important.
Choose this model when the 22-inch wheel specification is correct for your setup and you want the listed 10-ply construction. A 37-inch overall diameter does not make this tire interchangeable with a 15-inch or 24-inch wheel tire. Product data provided here does not include load ratings or tread specifications; verify those before purchase if they are part of your selection criteria.
System 3 RX600 37×10-15

The RX600 bundle includes four 10-ply radial ATV/UTV tires in size 37×10-15. It is best for buyers who need that exact size and want to compare a listed 10-ply option with the 8-ply XTR370 and RC500S Sticky sets.
For a direct size comparison, the RX600, XTR370, and RC500S Sticky are all listed as 37×10-15. Their stated ply ratings differ: the RX600 is 10-ply, while the other two are 8-ply. The available product details do not provide load capacity or other performance data, so use the ply rating as one comparison point rather than as a substitute for checking the tire’s complete specifications.
System 3 XT400W 37×12-24

This XT400W bundle contains four 10-ply radial tires listed as 37×12-24. It is best for buyers whose setup requires a 24-inch wheel and a 12-inch-wide tire. Among these choices, it has the largest stated wheel diameter and width.
Choose this if both the 24-inch wheel size and 12-inch width match your vehicle and wheel specifications. The listing also identifies the shipment as “LTL Only,” so delivery arrangements may differ from standard parcel shipping. Do not choose it simply because it is 37 inches tall; confirm the wider tire and wheel dimensions first.
Buying Guide: How to Choose 37-Inch UTV Tires
Which tire size should I verify?
Read the complete size, not only the first number. In a size such as 37×10-15, 37 indicates the listed tire diameter, 10 is the width, and 15 is the wheel diameter. The products here also include 37×9.5-22 and 37×12-24. Match all three measurements to your vehicle and wheel setup.
Should I choose 8-ply or 10-ply?
The listed 8-ply options are the XTR370 and RC500S Sticky. The XT400, RX600, and XT400W are listed as 10-ply. Compare the rating with your vehicle requirements and the tire’s complete specifications. The supplied product data does not state load capacity, so do not infer a specific load limit from the ply rating alone.
Does every set include four tires?
Yes. Each product name and feature description identifies a full set or bundle of four tires. Confirm the listing details before ordering, especially if you need a different quantity or a replacement for only one tire.
What should I check before ordering?
Confirm wheel diameter, tire width, vehicle fitment, and any manufacturer requirements for tire size and load. Also review complete product specifications for details not included in the supplied descriptions. For the XT400W, account for the listing’s LTL Only shipping note.
Are these tires intended for a particular terrain?
The provided feature information does not state terrain use or describe tread patterns. Compare detailed manufacturer information if terrain-specific tread or compound is important to your decision.