APM Clutch Upgrade Kit - 15% Stiffer Spring Harley Big Twin 1998-2017
About APM
APM builds motorcycle lifts, stands and shop equipment sized for the weight and wheelbase of touring V-twins.
This APM clutch upgrade kit is engineered for 1998-2017 Harley-Davidson Big Twin models, providing a significant boost in holding power. It features a 15% stiffer diaphragm spring and an additional friction plate to handle increased torque and aggressive riding.
Why riders pick this
- 15% stiffer diaphragm spring for increased holding power
- Extra clutch plate for enhanced grab
- Pre-measured stack height for easy installation
- Made in the U.S.A
- Ideal for modified or heavily loaded Big Twin models
When you're pushing your Harley Big Twin, whether with a built motor or just a heavy load, the stock clutch can start to show its limits. This APM clutch upgrade kit is designed to eliminate slip and provide a firmer, more reliable engagement. Featuring a 15% stiffer diaphragm spring and an extra friction plate, it delivers the increased grab you need to confidently put power to the ground. Each kit is made in the U.S.A. and comes with a pre-measured stack height for a straightforward installation.
Enhanced Clutch Performance
- 15% stiffer diaphragm spring for superior holding power
- Adds one extra clutch plate for increased grab and reduced slip
- Includes 9 friction plates and 8 tempered steel drive plates
- Pre-measured stack height ensures correct engagement geometry
- Made in the U.S.A. for quality assurance
Built for Serious Riders
This APM clutch upgrade is an essential component for any Big Twin rider looking to improve their bike's performance and durability. It's ideal for those who have uncorked their motor, ride aggressively, or frequently carry passengers and gear. Pair it with a fresh primary fluid change for optimal results and enjoy a more direct, responsive feel from your Harley-Davidson.
Specifications
- Brand: APM
- Manufacturer Part #: 1048-0028
- Length: 7.5 in
- Width: 6.75 in
- Height: 2.5 in
- Weight: 2.3 lbs
Common questions
Will this clutch kit fit my Harley-Davidson Sportster?
No, this kit is specifically designed for Harley-Davidson Big Twin models from 1998 through 2017. Sportster clutches use a different assembly and are not compatible.
Does the stiffer spring make the clutch lever harder to pull?
The 15% stiffer diaphragm spring will provide more holding power, which may result in a slightly firmer clutch lever pull compared to stock. Most riders adapt quickly to the change.
Is installation of this clutch upgrade kit difficult?
Clutch replacement involves removing the primary cover and working with several components. While not overly complex for experienced mechanics, it is best undertaken by someone with mechanical experience or a professional shop. Allow a few hours for proper installation.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | APM |
| TYPE | Clutch |
| SKU | 827-07016 |
| WEIGHT | 2.3 lb |
