S&S CYCLE SKU: T14-1020392

S&S Cycle Power Packs OEM-Style Replacement Piston Sets - Harley Big-Twin

$3,294.95
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About S&S Cycle

S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.

S&S Cycle Power Packs are high-quality replacement piston sets engineered for Harley-Davidson big-twin engines. Built to OEM specifications, these pistons are designed to restore original engine performance and are compatible with standard Harley platforms.

Why riders pick this

  • OEM-style construction for reliable performance
  • Engineered by S&S Cycle for precision
  • Designed for Harley-Davidson big-twin engines
  • Ideal replacement for worn pistons

When your Harley-Davidson big-twin needs a refresh, S&S Cycle Power Packs offer a reliable solution. These replacement piston sets are crafted with S&S Cycle's renowned engineering, providing OEM-style construction that ensures your engine returns to its factory performance levels, ready for many more miles on the road.

Reliable Engine Restoration

  • S&S Cycle engineering ensures quality and precision
  • OEM-style construction for reliable, factory-spec performance
  • Specifically designed for Harley-Davidson big-twin engines
  • Ideal replacement piston set for engine rebuilds

Maintaining Your Big-Twin

Choosing S&S Cycle Power Packs for your big-twin means investing in trusted quality for your engine's restoration. These pistons are built to meet or exceed original specifications, making them a perfect choice for riders looking to restore their bike's performance without venturing into extreme modifications. Always verify your specific engine displacement and year with S&S Cycle's comprehensive fitment information to guarantee the correct part for your build.

Specifications

  • Brand: S&S Cycle
  • Manufacturer Part #: 310-1395A
  • Category: Engine Components / Piston Sets - Powersports
  • Weight: 44.19 lb

Common questions

What Harley engines do these pistons fit?

These S&S Cycle Power Packs are specifically engineered for Harley-Davidson big-twin platforms. Always confirm your engine year and displacement with S&S Cycle or your dealer for exact compatibility before ordering.

Are these stock replacement pistons or an upgrade?

These are OEM-style replacement pistons designed to restore standard engine performance, following Harley specifications for a direct fit and function similar to original equipment.

Do I need new rings and pins when I install these pistons?

Yes, for any piston replacement, it is highly recommended to install new piston rings and wrist pins to ensure proper sealing, optimal performance, and engine longevity.

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.
BRANDS&S Cycle
TYPEPiston Sets - Powersports
SKUT14-1020392
WEIGHT44.19 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
4 RATINGS
5★ 4
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Aug 28, 2023

Everything you expect from S&S

Have installed this kit on multiple bikes. S&S knows what they’re doing.

— BRETT M
✓ VERIFIED
Apr 13, 2022

100 kit is sick! 10/5/1 compression is perfect for the 585 cams. Not going to burn the tires unless you bounce it, but at 2.7 K it pulls like a freight train. Super fun! Thanks S&S!

— Anonymous
✓ VERIFIED
Mar 8, 2020

5 Stars

— Anonymous
✓ VERIFIED
Jun 6, 2021

I didn't get it yet,can't wait too get it in my bike, than ill leave a review

— Anonymous