Part Details:

  • Year: 1981
  • Part list: Brake rear brake caliper assembly
  • Part number: 21
  • OEM number: #44181-77A
  • Description: PISTON KIT
  • Package: 1
  • Average price: 115 USD
  • Referral # : 13 (check diagram for referral #, get microfiche diagram)

Where can I get PISTON KIT ?

If you look after new or branded parts the best choice is: JP Cycles They have the largest selection and availability of Harley Davidson genuine parts, Period! You can search through the site either by keywords: (PISTON KIT) and OEM#: 44181-77A...use the search box on top right corner for that OR you can search by model (XLCH SPORTSTER) and year(1981) use drop down menu for selection on left side. All orders above 99 USD are shipped FREE of charge and you have a 120 day return policy. They have great prices and excellent, top rated customer service (world wide shipping).

Brake Caliper Piston Assembly

Brake Caliper Piston Assembly for Harley

Price: 42.99 usd
Click product # 44181-77A for more details
Price difference comparing to average price: -72.01
1 - Replaces (OEM 44181-77A)
33 Related products

Otherwise if you look for after market Harley Davidson genuine parts, big forums like or subreddits ( is the way to go. Make sure that you use descriptive keywords when you post to community forums, members will more often recognize Harley parts as keywords: PISTON KIT then just OEM numbers. This way you will for sure receive more responds to your thread.

Get your post recognized on HD forums, use the following BB code:

Markdown links for subreddits and reddit comments:

BB code of image for forums::

hd 44181-77A genuine part number

Please share and support our work

If you find that #44181-77A number is wrong and that it doesn't belong to Brake rear brake caliper assembly (#21) list or if you notice any error on current page please let us know.

We are trying to keep clean of errors and up to date. Thank you for using the worlds #1 Harley Davidson OEM finder.