2018 Subaru Forester Wiper Sizes, Bulb Sizes & Tire Sizes

Last reviewed September 30, 2026

The short answer

The 2018 Subaru Forester takes 26" driver and 17" passenger wiper blades (rear 14"), uses an H11 low-beam bulb, and rides on 225/60R17 tires as standard (2.5i, 2.5i Premium, 2.5i Limited); 2.5i Black Edition and 2.5i Touring use 225/55R18, 2.0XT Premium and 2.0XT Touring use 225/55R18.

Some values on this page are still waiting for a second source. We show what we have and mark it; confirm against your owner's manual before you buy.

Wiper blade sizes

Driver side 26" · j-hook connector · OEM 86542SG110 Shop on Amazon
Passenger side 17" · j-hook connector · OEM 86542SG160 Shop on Amazon
Rear 14" · oem-specific connector · OEM 86542AG080 Shop on Amazon

Tire sizes by trim

2.5i, 2.5i Premium, 2.5i Limited (standard) 225/60R17 98H · 30 front / 29 rear psi See tires at Amazon
2.5i Black Edition, 2.5i Touring 225/55R18 97H · 32 front / 30 rear psi See tires at Amazon
2.0XT Premium, 2.0XT Touring 225/55R18 97H · 33 front / 32 rear psi 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 HB3 Shop on Amazon
Fog light H16 Shop on Amazon
Daytime running HB3 Shop on Amazon
Front turn signal 7444NA Shop on Amazon
Rear turn signal WY21W Shop on Amazon
Brake light Sealed LED, no replaceable bulb
Tail light W5W Shop on Amazon
Reverse light W16W Shop on Amazon
License plate W5W Shop on Amazon

Wheel specs and lug torque

Bolt pattern 5x100 mm (5x3.94")
Lug nut torque 89 ft-lbs (121 Nm)
Factory wheel sizes 17x7, 18x7

Key fob, battery and sensors

Key fob battery CR2032 Shop on Amazon
Replacement fob FCC ID HYQ14AHC · part 88835-AL04A · 4-button · smart key Shop on Amazon
Relearn tool

Roof rack and roof load

Roof load limit 150 lb (68 kg), evenly spread, while driving
Rack mounting Raised side rails Shop crossbars on Amazon

Dimensions, weight and fuel

Figures for the 2.5i Premium.

Length 181.5" (461 cm)
Width 70.7" (180 cm)
Height 68.3" (173 cm)
Wheelbase 103.9" (264 cm)
Ground clearance 8.7" (22 cm)
Fuel Gasoline
Octane 87 (regular)
Fuel tank 15.9 gal (60 L)

Worth knowing about the 2018 Forester

  • Connector. Both front blades use a j-hook connector. A blade of the right length with the wrong connector will not clip on, so check the connector before you buy.
  • LED lighting. The brake light is a sealed LED unit with no user-replaceable bulb. A failure means replacing the assembly.
  • Bulbs. The halogen H11 and HB3 codes do not apply to the LED headlights on upper trims, and fog lights with the steering-responsive system take H11 instead of H16.
  • Spare. This vehicle carries a compact (temporary) spare.
  • Tire chains. The manual says not to fit tire chains on this vehicle; wheel-well clearance is too tight.
  • Tires. The manual says tire chains cannot be used; a non-chain traction device may be acceptable only if its maker recommends it for the vehicle.
  • Torque. Tighten lug nuts to 89 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.
  • TPMS. New sensors on this car need a relearn (tool); they will not pair on their own by driving.
  • Key fob. Match the FCC ID (HYQ14AHC) printed on the back of your fob when buying a replacement; the same car can use two fob designs in one year. A new fob still needs programming to the car.
  • Key fob. Cars without Keyless Access use a remote-head key whose transmitter takes a CR1620.
  • Roof load. The 150 lb roof limit is the dynamic figure for driving and includes the rack itself. It is not a limit for a rooftop tent when parked; the manual gives no static figure.
  • Dimensions. The figures above are for the 2.5i Premium; other body configurations differ in length, wheelbase and weight.
  • Fuel. The manual recommends 93 octane for the 2.0XT's full performance and allows 87, but calls for at least 91 when towing, carrying heavy loads or if the engine knocks.