Home / Vehicle Guides / Ford F-150 / Raptor / Tremor

Ford F-150 / Raptor / Tremor Off-Road Tire Pressure Guide

Ford F-150, Raptor, and Tremor off-road tire pressure guide. PSI by terrain for safe, confident off-roading.

Vehicle Specs

SpecDetails
Weight Range4,500 - 5,700 lbs
Stock Tire Size275/65R18 (Raptor: 315/70R17 / 37")
Common Upgrade285/70R17 (33") or 315/70R17 (35")
Recommended Hose KitQuad+ 155" or Mega Quad (MFMQ) for crew cab long bed

Recommended PSI by Terrain

TerrainRecommended PSI
Gravel & Graded Dirt26-30
Rock Crawling18-22
Sand & Dunes15-18
Mud18-22
Snow & Ice22-26

Notes

Heavy truck -- stay conservative. On 35"/37" E-rated, same ranges as JL (10-15 rock, 12-15 sand). Raptor has beadlock-capable wheels from factory. Start at 22 PSI stock, 18 PSI on 35s.

Hose Recommendation: Quad+ 155" or Mega Quad (MFMQ) for crew cab long bed. Shop MORRflate hose kits to air down all tires at once.

How to Air Down Your Ford F-150 / Raptor / Tremor

  1. Park on a flat, stable area before the trailhead.
  2. Set the parking brake and check current tire pressure with a gauge.
  3. Use your deflator or MORRflate system to release air to your target PSI (see table above).
  4. Adjust all four tires evenly. Drive a short distance, recheck, and fine-tune.
  5. Re-inflate before returning to pavement. Low pressures at highway speeds cause heat buildup and blowout risk.
Safety: Always re-inflate before returning to pavement. Running low pressures at highway speeds can cause heat buildup, sidewall damage, and even a blowout.

Shop MORRflate Gear Read the Full Guide