Replacement Piston — 3.875 in diameter, 4.375 in stroke, 9.6:1

Drag Specialties Replacement Piston — 3.875 in diameter, 4.375 in stroke, 9.6:1

Fits: Dyna 2012-2014 · Touring 2011-2014 · Trike 2010-2011, 2013 · Softail 2012-2014

DRAG SPECIALTIES
0911-0021
21989-07

OEM-quality replacement piston kit. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings.

Our price €110.11
RRP: €121.90RRP = manufacturer's recommended retail price
VAT included
In stock, ships in 2-3 days

Add to Compare
Add to Wishlist

Description

OEM-quality cast alloy construction provides dependable performance and long service life.

Some fitments feature a coated design that extends piston life, reduces friction, and helps engines run cooler.

Economical and ideal for OEM replacement; kits include two pistons, wrist pins and clips.

Accepts OEM or Hastings rings (order separately).

Specifications

Bore Oversize Standard

Fitment

Model Years
Harley Davidson
FLD 1690 (Dyna Switchback) 2012
FLD 1690 ABS (Dyna Switchback) 2012, 2014
FLHR 1690 (Road King) 2013–2014
FLHR 1690 ABS (Road King) 2012–2013
FLHRC 1690 ABS (Road King Classic) 2011, 2013–2014
FLHTC 1690 (Electra Glide Classic) 2013
FLHTC 1690 ABS (Electra Glide Classic) 2011–2012
FLHTCU 1690 (Electra Glide Ultra Classic) 2012
FLHTCU 1690 ABS (Electra Glide Ultra Classic) 2012
FLHTCUTG 1690 (Trike Tri Glide Ultra Classic 110th Anniversary) 2013
FLHTCUTG 1690 (Trike Tri Glide Ultra Classic) 2010–2011
FLHTK 1690 ABS (Electra Glide Ultra Limited) 2012–2013
FLHX 1690 (Street Glide) 2011, 2014
FLHX 1690 ABS (Street Glide) 2012–2014
FLHXS 1690 ABS (Street Glide Special) 2014
FLS 1690 (Softail Slim) 2014
FLS 1690 ABS (Softail Slim) 2012–2014
FLSTC 1690 ABS (Heritage Softail Classic) 2012–2013
FLSTF 1690 ABS (Fat Boy) 2012, 2014
FLSTFB 1690 (Fat Boy Lo) 2012
FLSTFB 1690 ABS (Fat Boy Lo) 2012, 2014
FLSTFB 1690 ABS (Fat Boy Special) 2013
FLSTN 1690 (Softail Deluxe) 2012–2013
FLSTN 1690 ABS (Softail Deluxe) 2012–2013
FLTRU 1690 ABS (Road Glide Ultra) 2012–2013
FLTRX 1690 (Road Glide Custom) 2011–2013
FLTRX 1690 ABS (Road Glide Custom) 2011–2012
FXDB 1690 ABS (Dyna Street Bob) 2014
FXDC 1690 ABS (Dyna Super Glide Custom) 2014
FXDF 1690 (Dyna Fat Bob) 2012–2013

+ 7 more models across 1 make in total.

Part numbers

Manufacturer part number 21989-07
: 0911-0021
In Stock

Data sheet

Units
Kit
Brand
DRAG SPECIALTIES
Bore - Oversize
Standard
Piston Material
Aluminum
Bore Size
3,875"
Piston Diameter
3,875"
3.875"
Stroke Length
4-3/8"
Compression Ratio
9.6:1
Model Family
Dyna
Softail
Touring
Trike

Vehicle Fitments

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Dyna Switchback Dyna 2012
Harley Davidson Dyna Switchback Dyna 2012
Harley Davidson Dyna Switchback Dyna 2014
Harley Davidson Road King Touring 2013
Harley Davidson Road King Touring 2014
Harley Davidson Road King Touring 2012
Harley Davidson Road King Touring 2013
Harley Davidson Road King Classic Touring 2011
Harley Davidson Road King Classic Touring 2013
Harley Davidson Road King Classic Touring 2014
Harley Davidson Electra Glide Classic Touring 2013
Harley Davidson Electra Glide Classic Touring 2011
Harley Davidson Electra Glide Classic Touring 2012
Harley Davidson Electra Glide Ultra Classic Touring 2012
Harley Davidson Electra Glide Ultra Classic Touring 2012
Harley Davidson Trike Tri Glide Ultra Classic Trike 2010
Harley Davidson Trike Tri Glide Ultra Classic Trike 2011
Harley Davidson Trike Tri Glide Ultra Classic 110th Anniversary Trike 2013
Harley Davidson Electra Glide Ultra Limited Touring 2012
Harley Davidson Electra Glide Ultra Limited Touring 2013
Harley Davidson Street Glide Touring 2011
Harley Davidson Street Glide Touring 2014
Harley Davidson Street Glide Touring 2012
Harley Davidson Street Glide Touring 2013
Harley Davidson Street Glide Touring 2014
Harley Davidson Street Glide Special Touring 2014
Harley Davidson Softail Slim Softail 2014
Harley Davidson Softail Slim Softail 2012
Harley Davidson Softail Slim Softail 2013
Harley Davidson Softail Slim Softail 2014
Harley Davidson Heritage Softail Classic Softail 2012
Harley Davidson Heritage Softail Classic Softail 2013
Harley Davidson Fat Boy Softail 2012
Harley Davidson Fat Boy Softail 2014
Harley Davidson Fat Boy Lo Softail 2012
Harley Davidson Fat Boy Lo Softail 2012
Harley Davidson Fat Boy Special Softail 2013
Harley Davidson Fat Boy Lo Softail 2014
Harley Davidson Softail Deluxe Softail 2012
Harley Davidson Softail Deluxe Softail 2013
Harley Davidson Softail Deluxe Softail 2012
Harley Davidson Softail Deluxe Softail 2013
Harley Davidson Road Glide Ultra Touring 2012
Harley Davidson Road Glide Ultra Touring 2013
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2012
Harley Davidson Road Glide Custom Touring 2013
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2012
Harley Davidson Dyna Street Bob Dyna 2014
Harley Davidson Dyna Super Glide Custom Dyna 2014
Harley Davidson Dyna Fat Bob Dyna 2012
Harley Davidson Dyna Fat Bob Dyna 2013
Harley Davidson Dyna Fat Bob Dyna 2013
Harley Davidson Dyna Low Rider Dyna 2014
Harley Davidson Dyna Wide Glide Dyna 2012
Harley Davidson Dyna Wide Glide Dyna 2013
Harley Davidson Dyna Wide Glide Dyna 2012
Harley Davidson Dyna Wide Glide Dyna 2013
Harley Davidson Blackline Softail 2013
Harley Davidson Blackline Softail 2012
Harley Davidson Blackline Softail 2013
Harley Davidson Breakout Softail 2013

More from this category