2021 Harley-Davidson FLHTK Ultra Limited Cooling System Service Parts
28 parts listed for your 2021 Harley-Davidson FLHTK Ultra Limited for a complete cooling system service. Choose your trim on product pages to confirm exact fit. A moderate DIY project - estimated 2-4 hours.
Cooling Parts
(2)primary
Coolant & Fluids
(26)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 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
LIQUI MOLY
LIQUI MOLY 20L Motorbike Fork Oil SAE 15W Heavy
$263.80
Cooling System Service for Other Harley-Davidson FLHTK Ultra Limited Years
Other Jobs for Your 2021 Harley-Davidson FLHTK Ultra Limited
Frequently Asked Questions
What parts do I need for a cooling system service on my 2021 Harley-Davidson FLHTK Ultra Limited?
A complete cooling system service on the 2021 Harley-Davidson FLHTK Ultra Limited typically requires cooling parts, coolant & fluids. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
How long does a cooling system service take on a 2021 Harley-Davidson FLHTK Ultra Limited?
A cooling system service typically takes 2-4 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a cooling system service myself?
A cooling system service is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2021 Harley-Davidson FLHTK Ultra Limited?
These parts are listed for the 2021 Harley-Davidson FLHTK Ultra Limited using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make cooling system service parts for the 2021 Harley-Davidson FLHTK Ultra Limited?
We carry cooling system service parts from trusted brands including Kuryakyn, K&N, and LIQUI MOLY. Filter by brand to find your preferred manufacturer.
How much does a cooling system service cost for a 2021 Harley-Davidson FLHTK Ultra Limited?
The cost of a cooling system service for the 2021 Harley-Davidson FLHTK Ultra Limited 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.