Free Shipping Over $39.99

Orders $39.99 or more ship free within the contiguous U.S.

Free Shipping Policy

No Restock Fees

Doesn't fit? Don't love it?

Return any unused item within 30 days for a full refund.

No-Hassle Returns

  1. Obtain an RA number
  2. Package your product
  3. Send it back to us!
Return Policy

Price Match Guarantee

Found it for less?

RevZilla will match any advertised price on new merchandise available through another authorized U.S. dealer.

Price Match Policy

Elite Service Rating

Our goal is to provide the best possible shopping experience to every enthusiast who visits RevZilla.

See what our customers are saying about us:

Customer Reviews

ZillaCash Rewards

The ZillaCash rewards program is very straightforward - if you have a RevZilla account, you may already be taking advantage of ZillaCash rewards. Review the following guidelines to see how easy it is to maximize your rewards and put your ZillaCash to work for you.

  • Earn and redeem ZillaCash credit automatically with each order - no fine print, no strings attached, and no hoops to jump through to cash in.
  • All you need is a RevZilla account to start earning - Simply log in each time you shop with RevZilla and we’ll take care of the rest, keeping more money in your pocket just for shopping with us.
  • Earn $5 for Each $100 You Spend on eligible products - up to a maximum of $30 ZillaCash per order for orders totaling $600 or more. Any ZillaCash you earn is automatically applied to the next purchase, so you can sit back, enjoy the ride and feel the savings blow through your hair.
Learn More About ZillaCash

Extended Holiday Returns

Any items purchased on, or after, November 1, 2017 have had their accepted return window extended until January 31st, 2018.

Extended Returns Policy

Looking for a deal?

Give us a call and one of our Gear Geeks will help you get the right deal for you and yours.

Monday - Friday: 9AM - 8PM ET
Saturday: 10AM - 6PM ET
Sunday: 11AM - 7PM ET
Call 877-792-9455
New

Progressive Monotube Fork Cartridge Kit For Harley Sportster Forty Eight 2016-2018

Item: P391878

Replace your fork's innards with a high performance, finely tunable cartridge kit designed for balancing maximum performance with comfort. Read More

$359.96
$399.95
Save $39.99 (10%)

This product is vehicle specific. Please to ensure fitment.

Learn More

Product Details

Progressive Monotube Fork Cartridge Kit For Harley Sportster Forty Eight

True high-performance front suspension has finally made its way to HD. Progressive's state-of-the-art Monotube Fork Kit represents the pinnacle of front end handling. High performance specialty components replace the sloppy open bath damping found in HD forks. The kit features a set of gas charged monotube dampers and a set of custom tuned fork springs so you can convert your bike to cartridge forks whether you have dual damper rod forks or a damper rod/cartridge setup.

Features:

  • Complete fork internal replacement kit
  • Adjustable to standard length or to lower the front end up to 1"
  • Improved resistance to front brake dive, front end stability & cornering traits, and better avoidance of "bottoming out"
  • Made in USA
  • Progressive spring rate
  • High-quality chrome-silicon wire
  • Precision wound
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Progressive Monotube Fork Cartridge Kit For Harley Sportster Forty Eight 2016-2018 RevZilla Item #1253726 MFR. Product #31-2533 AvailabilityAvailable: Requires 2-3 business days of lead time prior to shipment

This product is vehicle specific. Please to ensure fitment.

Fitment Notes & Exceptions
  • Changing ride height can potentially change many carefully-engineered attributes of your bike, including trail and mechanical trail
  • A change in ride height at one end of the vehicle usually will require a change at the other end
  • Prior to purchasing front-end components that are different than your OEM length, please verify that wheel and suspension travel can be altered without causing clearance issues - common interference spots include triple trees, fenders, frame, and of course, the ground
Harley Davidson
Sportster Forty-Eight XL1200X 2016, 2017, 2018
This item is also available for 104 different models
Harley Davidson
Electra Glide Classic FLHTC/I 1984-1996
Electra Glide Classic FLHTC/I 1997-2013
Electra Glide CVO/SE FLHTCSE 2004
Electra Glide CVO/SE FLHTCSE2 2005
Electra Glide Special FLHX 1984
Electra Glide Sport FLHS 1984-1993
Electra Glide Standard FLHT/I 1984-1996
Electra Glide Standard FLHT/I 1997-2009
Electra Glide Ultra Classic FLHTCU/I 1987-1996
Electra Glide Ultra Classic FLHTCU/I 1997-2013
Electra Glide Ultra Classic FLHTCU/I 2014-2016
Electra Glide Ultra Classic FLHTCU/I 2017-2018
Electra Glide Ultra Classic Low FLHTCUL 2015-2016
Electra Glide Ultra Limited FLHTK 2010-2013
Electra Glide Ultra Limited FLHTK 2014-2016
Electra Glide Ultra Limited FLHTK 2017-2018
Electra Glide Ultra Limited Low FLHTKL 2015-2016
FLH 1984-1985
Freewheeler FLRT 2015-2016
Road Glide Custom FLTRX 2010-2013
Road Glide CVO/SE FLTRSE3 2009
Road Glide CVO/SE FLTRSEI 2009
Road Glide CVO/SE FLTRSEI2 2001
Road Glide CVO/SE FLTRXSE 2012-2013
Road Glide FLTR/I 1998-2009
Road Glide FLTRX 2015-2016
Road Glide FLTRX 2017-2018
Road Glide Special FLTRXS 2015-2016
Road Glide Special FLTRXS 2017-2018
Road Glide Ultra CVO/SE FLTRUSE 2011
Road Glide Ultra FLTRU 2011-2013
Road Glide Ultra FLTRU 2016
Road Glide Ultra FLTRU 2017-2018
Road King Classic FLHRC/I 1994-1996
Road King Classic FLHRC/I 1997-2013
Road King Custom FLHRS/I 1995-1996
Road King Custom FLHRS/I 1997-2012
Road King CVO/SE FLHRSE3 2007
Road King CVO/SE FLHRSE4 2008
Road King CVO/SE FLHRSEI 2002
Road King CVO/SE FLHRSEI2 2003
Road King FLHR/I 2014-2016
Road King FLHR/I 1994-1996
Road King FLHR/I 1997-2013
Road King FLHR/I 2017-2018
Road King Special FLHRXS 2017-2018
Softail Convertible CVO/SE FLSTSE 2010
Softail Convertible CVO/SE FLSTSE2 2011
Softail Convertible CVO/SE FLSTSE3 2012
Softail Custom FXSTC/I 2007-2010
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 2005-2017
Softail Deuce CVO/SE FXSTDSE 2003
Softail Deuce CVO/SE FXSTDSE2 2004
Softail Deuce FXSTD/I 2000-2007
Softail Fat Boy CVO/SE FLSTFSE 2005
Softail Fat Boy CVO/SE FLSTFSE2 2006
Softail Fat Boy FLSTF/I 2000-2017
Softail Fat Boy Lo FLSTFB 2009-2016
Softail Fat Boy S FLSTFBS 2016-2017
Softail Heritage Classic FLSTC/I 2000-2017
Softail Heritage FLST/I 2006
Softail Night Train FXSTB/I 2000-2009
Softail Slim FLS 2012-2017
Softail Slim S FLSS 2016-2017
Softail Standard FXST/I 2000-2010
Sportster Custom XL1200C 2004-2010
Sportster Custom XL1200C 2012-2015
Sportster Custom XL1200C 2016-2018
Sportster Custom XL883C 2004-2009
Sportster Forty-Eight XL1200X 2010-2015
Sportster Iron XL883N 2009-2015
Sportster Iron XL883N 2016-2018
Sportster Low/SuperLow XL883L 2005-2015
Sportster Low/SuperLow XL883L 2007-2010
Sportster Low/SuperLow XL883L 2016-2018
Sportster Low XL1200L 2007-2011
Sportster Nightster XL1200N 2007-2012
Sportster Roadster XL1200CX 2016-2018
Sportster Roadster XL1200R 2004-2008
Sportster Roadster XL883R 2006-2012
Sportster Seventy-Two XL1200V 2016
Sportster SuperLow XL1200T 2014-2017
Sportster XL883 2004-2009
Street Glide CVO/SE FLHXSE 2010
Street Glide CVO/SE FLHXSE2 2011
Street Glide CVO/SE FLHXSE3 2012
Street Glide FLHX/I 2006-2013
Street Glide FLHX/I 2014-2016
Street Glide FLHX/I 2017-2018
Street Glide Special FLHXS 2014-2016
Street Glide Special FLHXS 2017-2018
Street Glide Trike FLHXXX 2010-2011
Tour Glide Classic FLTC/I 1984-1991
Tour Glide FLT 1984-1991
Tour Glide Ultra Classic FLTCU/I 1989-1995
Tri Glide Ultra Classic FLHTCUTG 2009-2013
Tri Glide Ultra Classic FLHTCUTG 2014-2016
Ultra Classic Electra Glide CVO/SE FLHTCUSE 2006
Ultra Classic Electra Glide CVO/SE FLHTCUSE2 2007
Ultra Classic Electra Glide CVO/SE FLHTCUSE3 2008
Ultra Classic Electra Glide CVO/SE FLHTCUSE4 2009
Ultra Classic Electra Glide CVO/SE FLHTCUSE5 2010
Ultra Classic Electra Glide CVO/SE FLHTCUSE6 2011
Ultra Classic Electra Glide CVO/SE FLHTCUSE7 2012

Shipping

Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.

Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Product Description
Replace your fork's innards with a high performance, finely tunable cartridge kit designed for balancing maximum performance with comfort. Read More
Part Numbers
Tap To View Part Numbers
Fitment
Tap To View Fitment Details
Shipping & Returns
Tap To View Shipping & Returns Details

Reviews & Questions

There are no reviews for this item. Write Review
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!
20 Customer Reviews
20 5/5
Read All Reviews
21 Questions & 15 Answers
Ask A Question