Engine (3)

Big Bore Forged Piston Kit — 3.937" bore, 4" stroke, 98 cu in, 10.3:1

-€121.37
Out of Stock

S&S CYCLE Big Bore Forged Piston Kit — 3.937" bore, 4" stroke, 98 cu in,...

Forged big-bore piston kit compatible with stock rods; cylinders may require boring for proper fit. Precision-made for correct clearances.

€472.00 €593.37

Big Bore Forged Piston Kit — Bore 3.937", Stroke 4-3/8", Compression 10.4:1, Displacement 107"

-€121.37
Out of Stock

S&S CYCLE Big Bore Forged Piston Kit — Bore 3.937", Stroke 4-3/8",...

Durable forged pistons for big bore builds. Compatible with stock rods with tapered wristpin ends. Cylinders may be bored to fit; machine to nominal diameter for correct clearance.

€472.00 €593.37

Cylinder Head Gasket — 1.02 mm, stock bore, MLS (multi-layer steel)

-€12.37
Out of Stock

COMETIC Cylinder Head Gasket — 1.02 mm, stock bore, MLS (multi-layer...

High-quality cylinder head gasket offering long-term reliability and fuel-resistant construction. Made in the USA.

€35.01 €47.38

Cylinder Head Gasket — Bore 4.017" , Thickness 0.76 mm (0.030"), MLS

-€23.07
Out of Stock

COMETIC Cylinder Head Gasket — Bore 4.017" , Thickness 0.76 mm...

High-quality cylinder head gasket built for long-term reliability. Fuel-resistant materials and reinforced layered construction provide a durable seal. Made in the USA.

€65.25 €88.32

Extreme Sealing Technology Motor Gasket Kit — For '99-'06 Twin Cam, 3.875", 1.02 mm (0.040")

-€30.41
Out of Stock

COMETIC Extreme Sealing Technology Motor Gasket Kit — For '99-'06 Twin...

Premium gasket set featuring MLS head gaskets, Viton® coatings and AFM exhaust seals. Made in the USA.

€103.28 €133.69

$Piston Kit for S&S Motors — Bore 3.875\", Oversize +0.005\", 103 cu in$

-€111.18
Out of Stock

S&S CYCLE Piston Kit for S&S Motors — Bore 3.875\", Oversize +0.005\",...

Complete piston kit includes pistons, rings, wrist pins and clips for a full motor replacement. Made in the U.S.A.

€432.34 €543.52

Piston Kit for S&S Motors — Bore 3.875", Displacement 103", Oversize +0.010"

-€111.18
Out of Stock

S&S CYCLE Piston Kit for S&S Motors — Bore 3.875", Displacement 103",...

Complete piston kit with forged pistons, rings, wrist pins and clips. Made in the U.S.A.

€432.34 €543.52

-€2.41
Out of Stock

S&S CYCLE Wrist Pin Circlips — 0.927 in, 4-pack

Precision circlips for 0.927 in wristpins. Made in the U.S.A.

€9.39 €11.80

-€91.64
Out of Stock

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

-€91.64
Out of Stock

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

-€128.49
Out of Stock

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

V-Twin Top End Gasket Kits — 3.1875" bore, 1200–1450 cc, for '66–'84 Shovelhead

-€29.17
Out of Stock

COMETIC V-Twin Top End Gasket Kits — 3.1875" bore, 1200–1450 cc, for...

EST gasket kit with embossed stainless steel head, base, and rocker gaskets covered in proprietary rubber. Includes all gaskets, seals, and O-rings to rebuild the top end. Made in the USA.

€82.53 €111.70

Replacement Piston — 3.750" diameter, 4-3/8" stroke, 9.2:1 compression, Kit

-€23.55
Out of Stock

DRAG SPECIALTIES Replacement Piston — 3.750" diameter, 4-3/8" stroke, 9.2:1...

OEM-quality cast aluminum alloy construction. Kits include two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately).

€66.56 €90.11

$Replacement Piston — +0.005\" oversize, 3.755\" diameter, 4-3/8\" stroke$

-€25.84
Out of Stock

DRAG SPECIALTIES Replacement Piston — +0.005\" oversize, 3.755\" diameter,...

OEM-quality replacement piston in cast aluminum alloy. Kits include two pistons, wrist pins and clips. Accepts OEM or Hastings rings (order separately).

€73.06 €98.90

-€9.68
Out of Stock

COMETIC Transmission Gasket Kit — 5-speed

Complete set of gaskets, seals and O-rings for reliable, long-lasting sealing. Made in the USA.

€32.85 €42.53

-€28.20
Out of Stock

DRAG SPECIALTIES Replacement Piston — 3.875 in, 4-3/8 in stroke, +0.010 in

OEM-quality cast aluminum alloy replacement pistons. Kits include two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately).

€79.68 €107.88

-€30.11
Out of Stock

DRAG SPECIALTIES Piston — Bore 3.750", Compression ratio 9.0:1, Twin Cam, Kit

OEM-quality cast aluminum pistons for Twin Cam motors. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings.

€85.13 €115.24

-€30.11
Out of Stock

DRAG SPECIALTIES Piston — 3.750" bore, +0.005" oversize

OEM-quality cast aluminum piston kit for Twin Cam motors. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings.

€85.13 €115.24

-€30.11
Out of Stock

DRAG SPECIALTIES Piston — 3.750" bore, +0.010" oversize, 9.0:1 compression

OEM-quality cast aluminum piston kit for Twin Cam motors; includes two pistons, wrist pins and clips.

€85.13 €115.24

-€29.38
Out of Stock

DRAG SPECIALTIES Piston — 3.750" bore, +0.020" oversize

OEM-quality piston kit for Twin Cam motors. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings.

€83.05 €112.43

-€32.37
Out of Stock

DRAG SPECIALTIES Big Bore Piston — Bore 3.875" , Compression 10.25:1

Big Bore piston for Twin Cam engines — precision-machined for dependable performance and straightforward installation.

€91.45 €123.82

Big Bore Piston — 3.875" bore, +0.010" oversize, 10.25:1 compression

-€33.18
Out of Stock

DRAG SPECIALTIES Big Bore Piston — 3.875" bore, +0.010" oversize, 10.25:1...

High-quality Big Bore Piston for Twin Cam engines; ideal for rebuilds and performance upgrades.

€93.74 €126.92

Big Bore Piston — 3.875" bore, +0.020" oversize, 10.25:1 compression

-€33.18
Out of Stock

DRAG SPECIALTIES Big Bore Piston — 3.875" bore, +0.020" oversize, 10.25:1...

High-quality Big Bore piston designed for Twin Cam engines to enhance power and durability.

€93.74 €126.92

Piston Kit — 3.937" bore, 107" displacement, 10.0:1 compression ratio

-€34.31
Out of Stock

DRAG SPECIALTIES Piston Kit — 3.937" bore, 107" displacement, 10.0:1...

Coated pistons for reduced friction and cooler running. Ideal OEM replacement; includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately).

€96.97 €131.28

-€34.31
Out of Stock

DRAG SPECIALTIES Piston Kit — 3.937" bore, +0.005" oversize, 107" displacement

Coated piston kit for OEM replacement. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately).

€96.97 €131.28

-€34.31
Out of Stock

DRAG SPECIALTIES Piston Kit — 3.937" bore, 107" displacement

Coated pistons reduce friction and run cooler. Includes two pistons, wrist pins and clips. Ideal for OEM replacement; rings sold separately.

€96.97 €131.28

$Piston Kit — Bore 4.000\" , 114 cu in, 10.5:1$

-€34.31
Out of Stock

DRAG SPECIALTIES Piston Kit — Bore 4.000\" , 114 cu in, 10.5:1

Coated pistons reduce friction and run cooler; ideal OEM replacement. Includes two pistons, wrist pins and clips. Rings sold separately.

€96.97 €131.28

$Piston Kit — Bore 4.000\", Displacement 114\", Compression 10.5:1$

-€34.31
Out of Stock

DRAG SPECIALTIES Piston Kit — Bore 4.000\", Displacement 114\", Compression 10.5:1

Coated pistons for longer life. OEM replacement kit includes two pistons, wrist pins and clips. Rings sold separately.

€96.97 €131.28

-€34.31
Out of Stock

DRAG SPECIALTIES Piston Kit — 4.000" bore, +0.010" oversize, 114 cu in

Coated pistons for extended life; OEM replacement kit with two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately).

€96.97 €131.28

-€32.03
Out of Stock

DRAG SPECIALTIES Replacement Piston Kit — 3.875" bore, 9.4:1 compression

Complete kit includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately). OEM-quality cast aluminum alloy construction.

€90.50 €122.53

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