tirewheelguide

2021 Kia K9 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2021 trim.

Tires for the 2021 Kia K9

Sizes most trims come with first. Open your trim below for its exact size.

  1. 245/50R18 Best-rated standard on 2 trims · optional on 3
    Check price on Amazon · 245/50R18
  2. 245/45R19 front + 275/40R19 rear Best-rated standard on 2 trims
    Check price on Amazon · 245/45R19 front Check price on Amazon · 275/40R19 rear
  3. 245/45R19 Best-rated standard on 1 trim · optional on 2
    Check price on Amazon · 245/45R19

Also listed: 245/45R18 + 275/40R19 245/40R20 245/40R20 + 275/35R20 245/40R20 + 285/35R20

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Trims sold in 2021
6
Generation
II (RJ)

6 trims sold in 2021

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Kia K9 II (RJ)

2018–2025 6 trims
K9 3.3 T-GDi 365 hp · 3.3L G6DP V6 245/45R19 102W / 275/40R19 105W 4 fitments
Generation
RJ Facelift · 2021–2025
Power
365 hp
Engine
3.3L G6DP V6, Petrol
Center bore
67.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.5
Check price on Amazon · 245/45R19 Check price on Amazon · 275/40R19 Wheels 19x8.5 ET32 · 5x114.3 · 67.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front245/45R19 102WRim 19x8.5 ET32 5x114.335 psi
Rear275/40R19 105WRim 19x9.5 ET47 5x114.335 psi
Front245/40R20 99WRim 20x8.5 ET30 5x114.335 psi
Rear275/35R20 102WRim 20x9.5 ET45 5x114.335 psi
Front245/40R20 99YRim 20x9 ET30 5x114.335 psi
Rear285/35R20 104YRim 20x10 ET45 5x114.338 psi
245/50R18 100WRim 18x8 ET33 5x114.335 psi

How to read 102W: 102 is the load index (up to 1,874 lb / 850 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET32 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

K9 3.8 GDi 311 hp · 3.8L G6DJ V6 245/50R18 100W 4 fitments
Generation
RJ Facelift · 2021–2025
Power
311 hp
Engine
3.8L G6DJ V6, Petrol
Center bore
67.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.5
Check price on Amazon · 245/50R18 Wheels 18x8 ET33 · 5x114.3 · 67.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/50R18 100WRim 18x8 ET33 5x114.335 psi
245/45R19 102WRim 19x9.5 ET47 5x114.335 psi
245/40R20 99WRim 20x9.5 ET45 5x114.335 psi
245/40R20 99YRim 20x10 ET45 5x114.335 psi

How to read 100W: 100 is the load index (up to 1,764 lb / 800 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET33 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

K9 3.3 GDi 249 hp · 3.3L G6DM V6 245/45R18 98W / 275/40R19 101W 3 fitments
Generation
RJ · 2018–2021
Power
249 hp
Engine
3.3L G6DM V6, Petrol
Center bore
67.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.5
Check price on Amazon · 245/45R18 Check price on Amazon · 275/40R19 Wheels 18x8.5 ET32 · 5x114.3 · 67.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front245/45R18 98WRim 18x8.5 ET32 5x114.335 psi
Rear275/40R19 101WRim 19x9.5 ET47 5x114.335 psi
Front245/40R20 99WRim 20x8.5 ET30 5x114.335 psi
Rear275/35R20 102WRim 20x9.5 ET45 5x114.335 psi
245/50R18 100WRim 18x8 ET33 5x114.335 psi

How to read 98W: 98 is the load index (up to 1,653 lb / 750 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET32 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

K9 3.3 T-GDi 365 hp · 3.3L G6DP V6 245/45R19 102W / 275/40R19 105W 3 fitments
Generation
RJ · 2018–2021
Power
365 hp
Engine
3.3L G6DP V6, Petrol
Center bore
67.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.5
Check price on Amazon · 245/45R19 Check price on Amazon · 275/40R19 Wheels 19x8.5 ET32 · 5x114.3 · 67.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front245/45R19 102WRim 19x8.5 ET32 5x114.335 psi
Rear275/40R19 105WRim 19x9.5 ET47 5x114.335 psi
Front245/40R20 99WRim 20x8.5 ET30 5x114.335 psi
Rear275/35R20 102WRim 20x9.5 ET45 5x114.335 psi
245/50R18 100WRim 18x8 ET33 5x114.335 psi

How to read 102W: 102 is the load index (up to 1,874 lb / 850 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET32 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

K9 3.8 GDi 311 hp · 3.8L G6DJ V6 245/50R18 100W 3 fitments
Generation
RJ · 2018–2021
Power
311 hp
Engine
3.8L G6DJ V6, Petrol
Center bore
67.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.5
Check price on Amazon · 245/50R18 Wheels 18x8 ET33 · 5x114.3 · 67.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/50R18 100WRim 18x8 ET33 5x114.335 psi
245/45R19 98WRim 19x9.5 ET47 5x114.335 psi
245/40R20 99WRim 20x9.5 ET45 5x114.335 psi

How to read 100W: 100 is the load index (up to 1,764 lb / 800 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET33 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

K9 5.0 GDi 420 hp · 5.0L G8BE V8 245/45R19 102W 3 fitments
Generation
RJ · 2018–2021
Power
420 hp
Engine
5.0L G8BE V8, Petrol
Center bore
67.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.5
Check price on Amazon · 245/45R19 Wheels 19x9.5 ET47 · 5x114.3 · 67.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/45R19 102WRim 19x9.5 ET47 5x114.335 psi
245/40R20 99WRim 20x9.5 ET45 5x114.335 psi
245/40R20 99YRim 20x10 ET45 5x114.335 psi

How to read 102W: 102 is the load index (up to 1,874 lb / 850 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET47 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Staggered
A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.
Trims sold in 2021
6
Generation
II (RJ)
Other years
All years (2012–2025)

Considering a different size?

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