My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Wiseco K2794 Black Edition Piston Kit Twin Cam 103 CID 10.5:1 Compression Twin Cooled

(Harley-Davidson FLHX Street Glide 2015, FLTRX Road Glide 2015, FLHXS Street Glide Special 2015, FLSTF Fat Boy 2015 + 20 more models)

Manufacturer

Part Number

K2794
Sale Price

$518.99

Estimated ship date Friday, November 20

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco K2794 Black Edition Piston Kit is a high-performance forged piston set engineered for Harley-Davidson Twin Cam 103 cubic inch engines equipped with Twin Cooled Rushmore cylinder heads. Running a 10.5:1 compression ratio with a 3.875-inch bore and 4.375-inch stroke, these pistons deliver the power and durability demanded by serious V-twin builders.

Key Features:

  • ArmorX Piston Coating – Provides superior protection under extreme conditions and significantly reduces wear
  • ArmorFit Skirt Coating – Automatically adjusts to the cylinder wall, eliminating the need to measure piston-to-wall clearance for smooth, quiet, and trouble-free operation
  • Forged Aluminum Construction – Optimized strength-to-weight ratio for high-performance engine builds
  • Domed Piston Design (+3.0cc dome volume) – Improved flame travel to maximize air/fuel burn efficiency at 10.5:1 compression
  • Dual Valve Reliefs – Intake and exhaust valve pocket depth of 0.208 in. with 2.250 in. diameter pockets for proper head clearance
  • Twin Cooled Compatible – Specifically designed to work with Twin Cooled (liquid-cooled cylinder heads) Rushmore engine architecture
  • Compatible with OEM and Screamin' Eagle heads

Specifications:

  • Bore Size: 3.875 in.
  • Stroke: 4.375 in.
  • Displacement: 1,691cc (103 CID)
  • Compression Ratio: 10.5:1
  • Piston Part Number: 40186PS
  • Piston Coating: ArmorX
  • Skirt Coating: ArmorFit
  • Dome Volume: +3.0cc
  • UPC: 193564150370

The Wiseco K2794 is part of the Black Edition V-Twin series, purpose-built for Harley-Davidson performance applications requiring maximum reliability and power. This kit includes everything needed for a complete piston replacement on Twin Cooled 103 CID engines.

Products specifications

Fits

Harley-Davidson FLHX Street Glide 2015, FLTRX Road Glide 2015, FLHXS Street Glide Special 2015, FLSTF Fat Boy 2015, FLHTCU Electra Glide Ultra Classic 2014-16, FLHR Road King 2015, FLTRXS Road Glide Special 2015 + 17 more models

Difficulty online in getting ground shipping.

Easy purchasing

Spoke to rep and texted in chat mode. Both were good experience.

google suggested fast checkout

Great

Excelent

Great service from boatplicity, Fedex failed on the two day delivery. Actually took 6 days to arrive after yall did your job getting the product out the door. I know that is beyond your control and delivery of anything these days is low.

Shopping experience was good, but the picture does not match the item. Leads to confusion.

Thanks

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy