Description
Brand new, open-box Genuine OEM Harley-Davidson Evolution Standard Piston Kit (Part Number 21990-80T). This factory original cast aluminum piston is engineered to factory tolerances for a standard-bore Evolution engine.
The outer cardboard packaging shows wear from storage and features handwritten notes on the front panel, but it retains its original clean factory label tracking a packaging date code of 04/11/01. The piston itself is brand new, completely uninstalled, and showcases a clean natural aluminum machine finish with crisp valve relief pockets cut into the crown. The internal skirt features genuine clean casting marks and factory inspection stamps.
Important Condition Note: This kit is incomplete and has missing components from its original package contents. It includes exactly 1 brand new standard piston and 1 brand new wrist pin. The piston rings and the two wrist pin c-clip retaining rings are missing from this package and must be sourced separately before installation.
COMPATIBILITY / FITMENT
-
Manufacturer: Harley-Davidson Original Equipment
-
OEM Part Number: 21990-80T
-
Size Specification: Standard Bore (STD)
-
Engine Type: 1340cc / 80 Cubic Inch Evolution "Evo" V-Twin Engines
-
Platform Fitment: Confirmed for standard-bore 1984–1999 Harley-Davidson Evolution Big Twin models across the following series:
-
Softail platforms (FXST, FLST, Heritage, Fat Boy, Night Train)
-
Touring platforms (Electra Glide, Road King, Road Glide, Tour Glide)
-
Dyna platforms (Super Glide, Low Rider, Wide Glide)
-
FXR platforms (Super Glide II, FXR2, FXR3, FXR4)
Condition: New
Fitment: Verify fitment using the photos, part numbers, and item specifics before purchase.
-
Brand: Harley-Davidson
-
Country of Origin: United States
Source: Imported from active eBay listing 398432551669 for Shopify draft review.
Condition: New
Fitment: Only use fitment explicitly shown in the copied eBay description/item specifics. Buyer should verify fitment using photos, part numbers, and listed details.
eBay Item Specifics
-
Brand: Harley-Davidson
-
Country of Origin: United States
