Wiseco 1200 EVO Sportster 10.5:1 Compression Piston Kit - K1687 - Harley Sportster

$447.95
PICK MY VTWIN MOTORCYCLEThis part is vehicle specific. Pick your motorcycle to confirm it fits.
OUT OF STOCK

Specifications

BRANDWiseco
TYPEPiston kits & Components
SKUK1687
PART NUMBERK1687
CATEGORYPiston Kits & Components
COMPRESSION RATIO10.5:1
MATERIALForged high-silicon aluminum
FINISHPrecision diamond-turned
WEIGHT2.84 lb
10.51 Compression

Fitment

Fits these motorcycles

Listed per manufacturer fitment data. Not sure? Email us and we confirm before you order.

REVIEWS

The Wiseco K1687 is a forged piston kit with a 10.5:1 compression ratio, built for riders who want more power and durability from their V-twin engine. It is an upgrade over stock pistons for a 1200 cc engine, giving a noticeable step up in performance.

Each piston is precision-forged from high-silicon, low-expansion aluminum. This material offers a strong balance of strength, reduced weight, and good thermal properties, helping the engine run cooler and hold up under demanding riding conditions. The diamond-turned finish is produced by CNC machining for consistent, zero-variation sizing.

Oversize options are available for re-sleeved cylinders, which makes this kit suitable for routine rebuilds as well as builds aimed at more power. The Wiseco K1687 is a dependable component for riders focused on a stronger, longer-lasting engine.

For off-road / closed-course race use only.

Specifications

  • Brand: Wiseco
  • Part Number: K1687
  • Category: Piston Kits & Components
  • Compression Ratio: 10.5:1
  • Material: Forged high-silicon aluminum
  • Finish: Precision diamond-turned
  • Weight: 2.8387 lbs

Common questions

What compression ratio do these pistons have?

The Wiseco K1687 pistons are designed for a 10.5:1 compression ratio, which provides increased power over stock.

What material are the pistons made from?

Each piston is precision-forged from high-silicon aluminum, chosen for its strength, reduced weight, and excellent thermal properties.

Are oversize options available?

Yes, oversize options are available for re-sleeved cylinders.

CUSTOMER REVIEWS
0 CUSTOMER REVIEWS
No customer reviews for this product yet — be the first to share your experience!