Wiseco Tracker Piston Kit - EVO Flat BIG Twin 1340 8.5:1 STD — Harley-Davidson (1984-1999)

Wiseco Tracker piston kit for EVO Flat Big Twin 1340cc engines at 8.5:1 compression ratio, standard bore. Forged piston with ArmorGlide skirt coating, precision rings, and force-fed pin oiling for durable street and light performance riding.

Features

• Forged piston crown with generous valve pockets
• Precision fit rings for ultimate sealing
• Force-fed pin oiling for enhanced piston pin lubrication
• ArmorGlide skirt coating reduces friction and scuff resistance
• Value-packaged kit

Specifications

• Brand: Wiseco
• Manufacturer Part #: K0215PS
• Engine: EVO Flat Big Twin 1340
• Compression Ratio: 8.5:1
• Bore: Standard
• Length: 9.5 in
• Width: 4.87 in
• Height: 4 in
• Weight: 2.75 lbs
• Country of Origin: United States of America

Fitment

Fits Harley-Davidson EVO Flat Big Twin 1340cc engines.

Frequently Asked Questions

What compression ratio is this piston kit?

8.5:1 — suitable for pump gas and stock EVO Big Twin applications.

Is a gasket kit included?

No — gasket kits are sold separately. Order a gasket set for your specific engine to complete the job.

What's the bore size?

Standard bore. Measure your cylinder before ordering to confirm it hasn't been overbored.

Why does the piston have ArmorGlide coating?

ArmorGlide reduces friction and scuff resistance, extending piston life and lowering operating noise.

Is force-fed pin oiling better than plain bearings?

Yes — force-fed lubrication reduces wear on the piston pin and connecting rod, especially under load.