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What type of oil does a 2021 Harley-Davidson Flhrxs Road King Special require and what is the capacity?

Published on March 09, 2024 by Searchforparts.com staff.

The 2021 Harley-Davidson FLHRXS Road King Special stands out for its powerful engine, the Milwaukee-Eight 114, offering impressive performance on the road. It also features a sleek and stylish design, comfortable ride quality, and advanced technology like a touchscreen infotainment system. The bike's handling and braking are top-notch, making it a joy to ride for long distances. The oil type the 2021 Harley-Davidson Flhrxs Road King Special engine needs is 20W-50 Motorcycle Oil.

How much oil does a 2021 Harley-Davidson Flhrxs Road King Special take?

You will need 4.76-5.18 quarts with filter.

What kind of filter does a 2021 Harley-Davidson Flhrxs Road King Special take?

Below, you will find the proper filter for your 2021 Harley-Davidson Flhrxs Road King Special.

What else can I do to maintain my 2021 Harley-Davidson Flhrxs Road King Special?

To maintain your 2021 Harley-Davidson FLHRXS Road King Special, regular maintenance is key. This includes changing the engine oil and filter at recommended intervals, inspecting and maintaining the brakes, checking tire pressure, and ensuring all electrical components are functioning properly. Cleaning and lubricating the drive chain, checking fluid levels, and keeping the bike clean can also help prolong its life and performance. Regularly scheduled services by authorized Harley-Davidson technicians are recommended for optimal upkeep.

Upgrade your oil to the best synthetic on the market! Below you will find the correct oil type for your 2021 Harley-Davidson/Flhrxs Road King Special!

20W-50 V-Twin Motorcycle Oil
  • Resists extreme heat to help keep engines clean and efficient.
SAE 60 V-Twin Motorcycle Oil
  • Convenience of one lubricant for all three sumps

These filters below are the correct fitting oil filters for your 2021 Harley-Davidson/Flhrxs Road King Special.

Black Oil Filter

This is the oil filter for the 2021 Harley-Davidson/Flhrxs Road King Special. Top filter for a clean engine!

  • 99% efficiency at 20 microns for maximum protection against engine wear
Chrome Oil Filter

This is the oil filter for the 2021 Harley-Davidson/Flhrxs Road King Special. Top filter for a clean engine!

  • Fluted for easy removal 1In accordance with industry-standard ISO SO 4548-12.