The 37x13.50R18LT Nitto Mud Grappler brings an extreme mud-terrain design to compatible light-truck applications. Its load-range D construction and 124P service description must match the vehicle requirements; large sidewall lugs add traction edges in rocky terrain.
Published dimensions are 37.05 inches in diameter and 14.17 inches in inflated width, using a measuring rim 11 inches wide. Approved wheel widths run from 9 to 11.5 inches, and new tread depth is listed at 21/32 inch. Open tread voids help clear mud and dirt, while the lug arrangement maintains ground contact for off-road traction. Choose between lizard-skin-textured sidewall lugs and plain sidewall lugs for the outward-facing appearance.
Maximum single-tire load is 3,525 lb at 50 psi. Match the tire size, wheel dimensions, load and speed requirements to your vehicle, then have a qualified installer check steering and suspension clearance. Published dimensions do not guarantee vehicle-specific fitment. Select operating inflation using the vehicle placard and applicable load/inflation guidance; the listed maximum-load pressure is not a recommended operating pressure.