Internal Parts

Piston Kit — 3.508" bore, +0.010" oversize, 9.5:1 compression, 4-stroke

Reduced price

JE PISTONS Piston Kit — 3.508" bore, +0.010" oversize, 9.5:1 compression,...

High-strength forged piston kit with premium wrist pins, carbon steel wire lock and JE Pro Seal rings.

€301.05 ~~€407.45~~

Reduced price

JE PISTONS Piston Kit — 3.518", +0.020", 10.0:1

High-strength piston kit for high-horsepower V-Twin engines. Includes premium wrist pins, wire locks and pro-seal piston rings.

€301.05 ~~€407.45~~

Reduced price

JE PISTONS Piston Kit — +0.020" piston, 10.25:1 compression, 4-Stroke

High-strength forged piston kit for V-Twin engines. Includes premium wrist pins, carbon steel wire lock, and pro-seal piston rings.

€270.82 ~~€366.54~~

Reduced price

JE PISTONS Piston Kit — Bore 3.755", +0.005", 9.3:1, 4-Stroke

High-strength forged piston kit for high-horsepower V-Twin engines. Includes premium wrist pins, carbon steel wire lock and JE Pro Seal rings.

€285.92 ~~€386.98~~

Piston Kit — 3.755" bore, +0.005" pistons, 10.25:1 compression, 4-Stroke

Reduced price

JE PISTONS Piston Kit — 3.755" bore, +0.005" pistons, 10.25:1...

Complete piston kit with premium wrist pins, carbon steel wire lock and JE Pro Seal rings; forged design for high-performance V‑Twin engines.

€289.33 ~~€386.98~~

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JE PISTONS Piston Kit — 100 cu in, 9.5:1

High-strength piston kit with premium wrist pins and JE Pro Seal rings.

€207.18 ~~€280.41~~

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JE PISTONS Piston Kit — +0.020", 9.5:1 compression

Forged piston kit for V-Twin engines; includes wrist pins, carbon steel wire lock, and Pro Seal rings.

€165.75 ~~€224.33~~

Reduced price

JE PISTONS Piston Kit — 3.937" bore, 10.25:1 compression, 4-stroke

High-strength piston kit with premium wrist pins, carbon steel wire lock and JE Pro Seal rings.

€301.05 ~~€407.45~~

Reduced price

JE PISTONS Piston Kit — 3.875" bore, 10.0:1 compression, Standard

High-strength forged piston kit with premium wrist pins, carbon steel wire locks, and sealed rings for durable performance.

€265.63 ~~€359.51~~

Reduced price

JE PISTONS Piston Kit — +0.010", 10.0:1, 4-Stroke

High-strength forged piston kit for V-Twin engines; includes premium wrist pins, carbon steel wire lock, and JE Pro Seal rings.

€265.63 ~~€359.51~~

Reduced price

JE PISTONS Piston Kit — Bore 4.005 in, Compression 10.5:1, Size +0.005 in

Complete piston kit with premium wrist pins, wire locks and JE Pro Seal rings. Precision-manufactured for consistent performance in high-horsepower V-Twin applications.

€265.63 ~~€359.51~~

Reduced price

COMP CAMS Beehive Valve Spring Kit

The Beehive Valve Spring Kit is a performance upgrade designed for Harley V-Twin engines, offering enhanced rpm capability and compatibility with high-lift cams.

€350.57 ~~€474.64~~

V-Thunder™ Performance Forged Tappet — Black Oxide

Reduced price

COMP CAMS V-Thunder™ Performance Forged Tappet — Black Oxide

Forged performance replacement for stock hydraulic roller lifters. 100% tested and made in the U.S.A.

€54.03 ~~€73.13~~

V-Thunder™ Race Forged Tappet — Black oxide

Reduced price

COMP CAMS V-Thunder™ Race Forged Tappet — Black oxide

Race/slow bleed upgrade design for high-performance use; each unit 100% tested; durable oxide finish; made in the U.S.A.

€56.63 ~~€76.64~~

Reduced price

COMP CAMS V-Thunder™ Race Forged Tappet — Set of 4, Black Oxide

Race/slow bleed upgrade design for high-performance use. Each unit is 100% tested for proper function. Made in the United States.

€282.59 ~~€382.46~~

Reduced price

COMP CAMS V-Thunder™ Tappet Assembly — COMP CAMS Hy-Rev, Hydraulic, 7410-1

Oil-metering hydraulic roller lifter with hardened high-carbon/chromium rollers, carbo-nitrided pushrod seat, and 100% testing; HY-REV™ and PRO-MAGNUM™ variants.

€23.31 ~~€31.55~~

Reduced price

JE PISTONS Piston Kit — 3.875 in bore, 1545 cc, 10.5:1

Machined from 2618-T6 forged aluminum for professional competition; pins, pin locks and rings included. Made in the U.S.A.

€259.30 ~~€350.94~~

Reduced price

JE PISTONS Piston Kit — 3.937", 9.5:1, 1595 cc

High-strength 2618-T6 forged-aluminum piston kit for competition; includes pins, locks and rings. Made in USA.

€259.31 ~~€350.95~~

Reduced price

JE PISTONS Piston Kit — 3.937 in, 10.5:1, 1595 cc

High-strength forged 2618-T6 aluminum piston kit for extreme and competition use. Pins, locks and rings included. Made in the U.S.A.

€363.56 ~~€492.05~~

Reduced price

JE PISTONS Piston Kit — 3.937 in bore, 10.75:1

Race-proven piston kit machined from 2618-T6 forged aluminum. Dome/dish design with smooth radii; pins, pin locks and rings included. Made in the U.S.A.

€350.99 ~~€475.05~~

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