2021 Harley-Davidson FLHR Road King Tune-Up Parts
51 parts verified to fit your 2021 Harley-Davidson FLHR Road King for a complete tune-up. This is an easy DIY project — estimated 1-2 hours.
Air Filters
(8)primary
BMC
BMC 09-13 Harley-Davidson Touring FLHTCUTG Tri Glide Ultra Classic
$103.40
Cometic Gasket
Cometic Harley-Davidson Milwaukee 8 Airbox To T/B .031inFiber, All CVO Models,1Pk
$3.23
Cometic Gasket
Cometic Harley-Davidson Milwaukee 8, Air Cleaner To Throttle Body Seal - 4PK
$28.44
K&N
K&N 2017 Harley-Davidson FLHR Road King Replacement Air Filter
$83.99
Performance Machine
Performance Machine Jet Air Cleaner - Contrast Cut
$664.95
Performance Machine
Performance Machine Vision Air Cleaner W/Bezel - Chrome
$664.95
Performance Machine
Performance Machine Air Cleaner - Black Ano
$514.95
Performance Machine
Performance Machine Air Cleaner - Chrome
$499.95
Fuel Injectors
(7)companion
DeatschWerks
DeatschWerks 08-22 Harley-Davidson Electra Glide Fuel Pump Install Kit for DW100 / DW200
$15.00
DeatschWerks
DeatschWerks 255 LPH In-Tank Fuel Pump w/ Set Up Kit 08-22 Harley-Davidson Electra Glide
$109.00
TwinPower
Twin Power 08-17 FLH FLT Models Fuel Pump Plate Seal Viton Replaces H-D 61402-08
$22.52
TwinPower
Twin Power 08-19 FLHT FLHR FLHX FLTRX FLTRU Fuel Pump Replaces H-D 62908-08
$184.31
TwinPower
Twin Power 08-Up Touring 08-17 Softail 04-17 Dyna 07 Up XL Fuel Pressure Regulator H-D 61015-04A
$39.92
TwinPower
Twin Power M8 Fuel Injector Replaces H-D 27400015 4.38 Gms/Sec
$87.03
DeatschWerks
DeatschWerks 165 LPH In-Tank Fuel Pump w/ Install Kit 08-22 Harley-Davidson Electra Glide
$99.00
Fluids & Additives
(8)consumable
K&N
K&N Harley-Davidson / Buell 3in OD x 4.063in H Black Oil Filter
$17.99
K&N
K&N Harley-Davidson / Buell 3in OD x 4.063in H Chrome Oil Filter
$19.99
LIQUI MOLY
LIQUI MOLY 1L Brake Fluid DOT 4
$66.14
LIQUI MOLY
LIQUI MOLY 1L Brake Fluid SL6 DOT 4
$65.86
LIQUI MOLY
LIQUI MOLY 1L Motorbike 4T SAE 20W50 Street
$63.23
LIQUI MOLY
LIQUI MOLY 1L Motorbike Fork Oil SAE 15W Heavy
$98.87
LIQUI MOLY
LIQUI MOLY 1L Motorbike HD Synth SAE 20W50 Street
$97.41
LIQUI MOLY
LIQUI MOLY 20L Motorbike 4T SAE 20W50 Street
$160.59
Tune-Up for Other Harley-Davidson FLHR Road King Years
Other Jobs for Your 2021 Harley-Davidson FLHR Road King
Frequently Asked Questions
What parts do I need for a tune-up on my 2021 Harley-Davidson FLHR Road King?
A complete tune-up on the 2021 Harley-Davidson FLHR Road King typically requires air filters, fuel injectors, fluids & additives. All parts shown on this page are verified to fit your specific vehicle.
How long does a tune-up take on a 2021 Harley-Davidson FLHR Road King?
A tune-up typically takes 1-2 hours and is rated as easy difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a tune-up myself?
Yes! A tune-up is an easy DIY project that most people can do with basic hand tools. It's a great way to save money on labor costs.
Are these parts guaranteed to fit my 2021 Harley-Davidson FLHR Road King?
Yes, all parts on this page are verified to fit the 2021 Harley-Davidson FLHR Road King using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make tune-up parts for the 2021 Harley-Davidson FLHR Road King?
We carry tune-up parts from trusted brands including BMC, Cometic Gasket, K&N, Performance Machine, and DeatschWerks. Filter by brand to find your preferred manufacturer.
How much does a tune-up cost for a 2021 Harley-Davidson FLHR Road King?
The cost of a tune-up for the 2021 Harley-Davidson FLHR Road King depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.