Engine Air Supply Parts for 2021 HARLEY-DAVIDSON SOFTAIL

Fits your 2021 HARLEY-DAVIDSON SOFTAIL

63 parts

K&N Filters

HD-0800

Air Filter

Fits 1 version of your 2021 HARLEY-DAVIDSON SOFTAIL

2007– 1600 Softail Springer CVO (FXSTSSE) Belts 1.6L Petrol 61 kW
2007– 1600 Softail Springer CVO (FXSTSSE) Belts 1.6L Petrol 61 kW

K&N Filters

RK-3955

Air Intake System Motorcycle Intake Kit

Fits 14 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1750 Softail Fat Bob (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Bob (ST1) Belts 1.9L Petrol 69 kW

2017– 1750 Softail Fat Boy (ST1, FLFB) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 69 kW
2017– 1750 Softail Breakout (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Breakout (ST1) Belts 1.9L Petrol 69 kW
2018– 1870 Softail Breakout (FXBRS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Bob (FXFBS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Boy (FLFBS) Belts 1.9L Petrol 64 kW
2020– 1870 Softail Breakout 114 (ST1) Belts 1.9L Petrol 70 kW
2020– 1870 Softail Street Bob 114 (ST1) Belts 1.9L Petrol 70 kW
2021– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 70 kW
2021– 1750 Softail Standard (FXST, ST1-R1) Belts 1.7L Petrol 33 kW
2021– 1750 Softail Standard (FXST) Belts 1.7L Petrol 64 kW

K&N Filters

RK-3933B

Air Intake System Motorcycle Intake Kit

Fits 9 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1988– 1340 Softail Springer Belts 1.3L Petrol 33 kW
2001– 1450 Softail Deuce Injection Belts 1.4L Petrol 47 kW

1999– 1450 Softail Deuce Belts 1.4L Petrol 47 kW
1988– 1340 Softail Springer Belts 1.3L Petrol 45 kW
2006– 1450 Softail Night Train (FXSTBI) Belts 1.4L Petrol 47 kW
2007– 1600 Softail Rocker C (FXCWC) Belts 1.6L Petrol 54 kW
2013– 1700 Softail Fat Boy Special (FS2) Belts 1.7L Petrol 33 kW
2008– 1600 Softail Rocker (FS2) Belts 1.6L Petrol 23 kW
2009– 1600 Softail Cross Bones (FS2) Belts 1.6L Petrol 24 kW

K&N Filters

HD-1390

Air Filter

Fits 4 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1987– 1340 Softail Custom Belts 1.3L Petrol 33 kW
1987– 1340 Softail Belts 1.3L Petrol 33 kW

1987– 1340 Softail Custom Belts 1.3L Petrol 43 kW
1987– 1340 Softail Belts 1.3L Petrol 43 kW

K&N Filters

RK-3938

Air Intake System Motorcycle Intake Kit

Fits 3 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2016– 1800 Softail Slim S (FLSS) Belts 1.8L Petrol 68 kW
2017– 1700 Softail Slim Belts 1.7L Petrol 55 kW

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

RK-3954

Air Intake System Motorcycle Intake Kit

Fits 14 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1750 Softail Fat Bob (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Bob (ST1) Belts 1.9L Petrol 69 kW

2017– 1750 Softail Fat Boy (ST1, FLFB) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 69 kW
2017– 1750 Softail Breakout (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Breakout (ST1) Belts 1.9L Petrol 69 kW
2018– 1870 Softail Breakout (FXBRS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Bob (FXFBS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Boy (FLFBS) Belts 1.9L Petrol 64 kW
2020– 1870 Softail Breakout 114 (ST1) Belts 1.9L Petrol 70 kW
2020– 1870 Softail Street Bob 114 (ST1) Belts 1.9L Petrol 70 kW
2021– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 70 kW
2021– 1750 Softail Standard (FXST, ST1-R1) Belts 1.7L Petrol 33 kW
2021– 1750 Softail Standard (FXST) Belts 1.7L Petrol 64 kW

K&N Filters

RK-3947X

Air Intake System Motorcycle Intake Kit

Fits 1 version of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW
2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

57-1125

Air Intake System FIPK - Motorcycle Intake Kit

Fits 11 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1988– 1340 Softail Springer Belts 1.3L Petrol 33 kW
2001– 1450 Softail Deuce Injection Belts 1.4L Petrol 47 kW

1999– 1450 Softail Deuce Belts 1.4L Petrol 47 kW
1988– 1340 Softail Springer Belts 1.3L Petrol 45 kW
2011– 1600 Softail Blackline (FXS) Belts 1.6L Petrol 56 kW
2011– 1700 Softail Blackline (FXS) Belts 1.7L Petrol 24 kW
2006– 1450 Softail Night Train (FXSTBI) Belts 1.4L Petrol 47 kW
2007– 1600 Softail Rocker C (FXCWC) Belts 1.6L Petrol 54 kW
2013– 1700 Softail Fat Boy Special (FS2) Belts 1.7L Petrol 33 kW
2008– 1600 Softail Rocker (FS2) Belts 1.6L Petrol 23 kW
2009– 1600 Softail Cross Bones (FS2) Belts 1.6L Petrol 24 kW

K&N Filters

RK-3922

Air Intake System Motorcycle Intake Kit

Fits 4 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1987– 1340 Softail Custom Belts 1.3L Petrol 33 kW
1987– 1340 Softail Belts 1.3L Petrol 33 kW

1987– 1340 Softail Custom Belts 1.3L Petrol 43 kW
1987– 1340 Softail Belts 1.3L Petrol 43 kW

K&N Filters

RK-3932XB

Air Intake System Motorcycle Intake Kit

Fits 11 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1988– 1340 Softail Springer Belts 1.3L Petrol 33 kW
2001– 1450 Softail Deuce Injection Belts 1.4L Petrol 47 kW

1999– 1450 Softail Deuce Belts 1.4L Petrol 47 kW
1988– 1340 Softail Springer Belts 1.3L Petrol 45 kW
2011– 1600 Softail Blackline (FXS) Belts 1.6L Petrol 56 kW
2011– 1700 Softail Blackline (FXS) Belts 1.7L Petrol 24 kW
2006– 1450 Softail Night Train (FXSTBI) Belts 1.4L Petrol 47 kW
2007– 1600 Softail Rocker C (FXCWC) Belts 1.6L Petrol 54 kW
2013– 1700 Softail Fat Boy Special (FS2) Belts 1.7L Petrol 33 kW
2008– 1600 Softail Rocker (FS2) Belts 1.6L Petrol 23 kW
2009– 1600 Softail Cross Bones (FS2) Belts 1.6L Petrol 24 kW

K&N Filters

RK-3956

Air Intake System Motorcycle Intake Kit

Fits 14 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1750 Softail Fat Bob (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Bob (ST1) Belts 1.9L Petrol 69 kW

2017– 1750 Softail Fat Boy (ST1, FLFB) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 69 kW
2017– 1750 Softail Breakout (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Breakout (ST1) Belts 1.9L Petrol 69 kW
2018– 1870 Softail Breakout (FXBRS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Bob (FXFBS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Boy (FLFBS) Belts 1.9L Petrol 64 kW
2020– 1870 Softail Breakout 114 (ST1) Belts 1.9L Petrol 70 kW
2020– 1870 Softail Street Bob 114 (ST1) Belts 1.9L Petrol 70 kW
2021– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 70 kW
2021– 1750 Softail Standard (FXST, ST1-R1) Belts 1.7L Petrol 33 kW
2021– 1750 Softail Standard (FXST) Belts 1.7L Petrol 64 kW

K&N Filters

63-1138C

Air Intake System AirCharger - Motorcycle Intake Kit

Fits 14 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1750 Softail Fat Bob (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Bob (ST1) Belts 1.9L Petrol 69 kW

2017– 1750 Softail Fat Boy (ST1, FLFB) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 69 kW
2017– 1750 Softail Breakout (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Breakout (ST1) Belts 1.9L Petrol 69 kW
2018– 1870 Softail Breakout (FXBRS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Bob (FXFBS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Boy (FLFBS) Belts 1.9L Petrol 64 kW
2020– 1870 Softail Breakout 114 (ST1) Belts 1.9L Petrol 70 kW
2020– 1870 Softail Street Bob 114 (ST1) Belts 1.9L Petrol 70 kW
2021– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 70 kW
2021– 1750 Softail Standard (FXST, ST1-R1) Belts 1.7L Petrol 33 kW
2021– 1750 Softail Standard (FXST) Belts 1.7L Petrol 64 kW

K&N Filters

RK-3950

Air Intake System Motorcycle Intake Kit

Fits 11 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1988– 1340 Softail Springer Belts 1.3L Petrol 33 kW
2001– 1450 Softail Deuce Injection Belts 1.4L Petrol 47 kW

1999– 1450 Softail Deuce Belts 1.4L Petrol 47 kW
1988– 1340 Softail Springer Belts 1.3L Petrol 45 kW
2011– 1600 Softail Blackline (FXS) Belts 1.6L Petrol 56 kW
2011– 1700 Softail Blackline (FXS) Belts 1.7L Petrol 24 kW
2006– 1450 Softail Night Train (FXSTBI) Belts 1.4L Petrol 47 kW
2007– 1600 Softail Rocker C (FXCWC) Belts 1.6L Petrol 54 kW
2013– 1700 Softail Fat Boy Special (FS2) Belts 1.7L Petrol 33 kW
2008– 1600 Softail Rocker (FS2) Belts 1.6L Petrol 23 kW
2009– 1600 Softail Cross Bones (FS2) Belts 1.6L Petrol 24 kW

K&N Filters

57-1122

Air Intake System FIPK - Motorcycle Intake Kit

Fits 1 version of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW
2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

RK-3901

Air Intake System Motorcycle Intake Kit

Fits 4 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

1987– 1340 Softail Custom Belts 1.3L Petrol 33 kW
1987– 1340 Softail Belts 1.3L Petrol 33 kW

1987– 1340 Softail Custom Belts 1.3L Petrol 43 kW
1987– 1340 Softail Belts 1.3L Petrol 43 kW

K&N Filters

57-1122P

Air Intake System FIPK - Motorcycle Intake Kit

Fits 1 version of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW
2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

RK-3951S

Air Intake System Motorcycle Intake Kit

Fits 3 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2016– 1800 Softail Slim S (FLSS) Belts 1.8L Petrol 68 kW
2017– 1700 Softail Slim Belts 1.7L Petrol 55 kW

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

RK-3946B

Air Intake System Motorcycle Intake Kit

Fits 1 version of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW
2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

RK-3951

Air Intake System Motorcycle Intake Kit

Fits 3 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2016– 1800 Softail Slim S (FLSS) Belts 1.8L Petrol 68 kW
2017– 1700 Softail Slim Belts 1.7L Petrol 55 kW

2017– 1700 Softail Breakout Belts 1.7L Petrol 55 kW

K&N Filters

RK-3948

Air Intake System Motorcycle Intake Kit

Fits 14 versions of your 2021 HARLEY-DAVIDSON SOFTAIL

2017– 1750 Softail Fat Bob (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Bob (ST1) Belts 1.9L Petrol 69 kW

2017– 1750 Softail Fat Boy (ST1, FLFB) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 69 kW
2017– 1750 Softail Breakout (ST1) Belts 1.7L Petrol 64 kW
2018– 1870 Softail Breakout (ST1) Belts 1.9L Petrol 69 kW
2018– 1870 Softail Breakout (FXBRS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Bob (FXFBS) Belts 1.9L Petrol 64 kW
2018– 1870 Softail Fat Boy (FLFBS) Belts 1.9L Petrol 64 kW
2020– 1870 Softail Breakout 114 (ST1) Belts 1.9L Petrol 70 kW
2020– 1870 Softail Street Bob 114 (ST1) Belts 1.9L Petrol 70 kW
2021– 1870 Softail Fat Boy (ST1) Belts 1.9L Petrol 70 kW
2021– 1750 Softail Standard (FXST, ST1-R1) Belts 1.7L Petrol 33 kW
2021– 1750 Softail Standard (FXST) Belts 1.7L Petrol 64 kW