2018 Ram 1500 Wiper Sizes, Bulb Sizes & Tire Sizes
The short answer
The 2018 Ram 1500 takes 22" driver and 22" passenger wiper blades, uses an H11 low-beam bulb, and came on P265/70R17 (Models with 17-in. wheels), 275/60R20 (Models with 20-in. wheels) depending on trim.
Wiper blade sizes
Driver side
22" Shop on Amazon
Passenger side
22" Shop on Amazon
Tire sizes by trim
Models with 17-in. wheels
P265/70R17 See tires at Amazon
Models with 20-in. wheels
275/60R20 See tires at Amazon
The size on the placard inside the driver's door jamb is the one your car left the factory with. Match that, not this table, if they differ; a previous owner may have changed wheels.
Bulb sizes
Low beam
H11 Shop on Amazon
High beam
9005 Shop on Amazon
Fog light
9145 Shop on Amazon
Front turn signal
3157NA Shop on Amazon
Rear turn signal
3157K Shop on Amazon
Brake light
3157K Shop on Amazon
Tail light
3157K Shop on Amazon
Reverse light
921 Shop on Amazon
License plate
194 Shop on Amazon
Wheel specs and lug torque
Bolt pattern
5x139.7 mm (5x5.5")
Center bore
77.8 mm
Lug thread
M14x1.5 Shop on Amazon
Lug seat
cone
Lug nut torque
130 ft-lbs (176 Nm)
Key fob, battery and sensors
Key fob battery
CR2032 Shop on Amazon
Frequency
433 MHz
Dimensions, weight and fuel
Fuel
Gasoline
Octane
87 (regular)
Fuel tank
26 gal (98 L)
Worth knowing about the 2018 1500
- Bulbs. Vertical fog lamps take a 9006, premium projector headlamps use a 9005 low beam, and premium LED tail and turn lamps are sealed units.
- Tire chains. The manual permits chains or cables of SAE Class S (low clearance), on the drive wheels only, fitted to the standard tire size. Chains for this size on Amazon →
- Tires. The manual allows Class S chains on the rear tires only, and only on P265/70R17 tires.
- Torque. Tighten lug nuts to 130 ft-lbs in a star pattern with a torque wrench, and re-check after the first 50 miles. This figure is from the owner's manual; an impact gun will overshoot it.
- Key fob. Trucks came with a FOBIK key (FCC ID IYZ-C01C), a remote (GQ4-53T) or a proximity smart key (GQ4-54T), so match the fob in hand.
- Fuel. A 32-gallon tank is optional, and the 5.7-liter HEMI recommends 89 octane with 87 acceptable.