Tire Size Specification
Verified OEM & Service Reference1986 GMC Suburban 5.0L 8-cyl — Tire Size
Recommended interval: Rotate every 5,000–7,500 miles; check cold PSI monthly
Engine / Trim Variant
Factory Tire Size
225/75R15 / 235/75R15
Quick Purchase
Check verified fitment on Amazon
Technical Specifications
| Front Tire Size | 225/75R15 / 235/75R15 |
|---|---|
| Rear Tire Size | 225/75R15 / 235/75R15 |
| Rim / Wheel Size | 15" |
| Matched Trims | 1500 2wd, 1500 4wd, 2500 2wd |
Compatible Aftermarket Options
Direct OEM cross-references- Buy Michelin / Continental / Pirelli 225/75R15 on AmazonMichelin / Continental / Pirelli225/75R15
Search query: 225/75R15 tire
Tire Size Fitment by Engine / Trim (1986 GMC Suburban)
| Engine / Trim | Oil Spec & Capacity | OEM Oil Filter |
|---|---|---|
| 5.0L 8-cyl | — • N/A | Verify by VIN |
| 5.7L 8-cyl | — • N/A | Verify by VIN |
| 6.2L 8-cyl Diesel | — • N/A | Verify by VIN |
DIY Fitment & Verification Checklist for 1986 GMC Suburban
- Confirm your engine code or trim variant above before ordering parts, as mid-year production changes can affect tire size fitment.
- When purchasing OEM or aftermarket brands (Motorcraft, ACDelco, Mopar, Wix, Fram, Mobil 1, Bosch, NGK), cross-check the Amazon Garage Confirmed Fit badge with your 17-digit VIN.
- Always consult your 1986 GMC Suburban owner's manual for exact torque specs and fluid service intervals.
Sources: NHTSA vPIC & OEM Service SpecificationsReport an inaccurate spec or part number
Frequently Asked Questions
What is the OEM tire size specification for a 1986 GMC Suburban?
The primary OEM tire size part number / specification for the 1986 GMC Suburban 5.0L 8-cyl is 225/75R15 / 235/75R15.
Which aftermarket tire size brands fit the 1986 GMC Suburban?
Compatible aftermarket options include Michelin / Continental / Pirelli 225/75R15.