Engine (4)

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

-€121.37

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

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

-€111.18

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

$Piston Kit for S&S Motors — Bore 3.500\", Oversize +0.020\", Displacement 80\"$

-€34.97

S&S CYCLE Piston Kit for S&S Motors — Bore 3.500\", Oversize +0.020\",...

Complete piston kit with rings, wrist pins and clips for full motor replacement.

Made in the U.S.A.

€135.99 €170.96

-€112.20

S&S CYCLE 557 Easy Start Camshaft Kit — 557 Series grind, chain drive

Bolt-in camshaft kit that eases starting by temporarily reducing compression; includes all required seals and hardware. Installer must verify clearances. Not for OEM compression-release models.

€436.38 €548.58

-€2.41

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

-€57.28

S&S CYCLE H-Grind Camshaft — for 74" and 80" engines

OEM-spec hydraulic replacement camshaft; H-grind reproduction of '48–'84 Big Twin stock cams. Ideal for repair and restoration of 74" and 80" engines.

€222.75 €280.03

-€57.28

S&S CYCLE H-Grind Camshaft — Gear, fits 74" and 80" engines

OEM-spec hydraulic camshaft, a dead-on reproduction of the '48–'84 Big Twins cams; ideal for restoring 74" and 80" engines.

€222.75 €280.03

-€51.63

S&S CYCLE H-Grind Camshaft — H grind, for 74" and 80" Big Twin engines

OEM-spec hydraulic camshaft reproducing stock cams used in '48–'84 Big Twins; ideal for repair and restoration of 74" and 80" engines.

€200.80 €252.43

-€213.10

S&S CYCLE 583G Gear Drive Camshaft Kit — 583 Series grind

Reverses rear cam rotation for increased cam lift potential and improved valve timing accuracy. Professional installation required; cam bearings and gaskets must be replaced.

€828.74 €1,041.84

-€112.20

S&S CYCLE MR103 Easy Start Camshaft Kit — S&S Cycle, Chain

Bolt-in camshaft kit for 103" engines that eases starting by temporarily reducing compression, then returns to full compression. Improves midrange power (best 2500–5500 rpm). Includes camshafts and all necessary gaskets, bearings and hardware. Installer must verify coil bind and clearances.

€436.38 €548.58

635 H.O. Chain Drive Camshaft Kit — 635HO grind, Chain, Raw finish

-€86.79

S&S CYCLE 635 H.O. Chain Drive Camshaft Kit — 635HO grind, Chain, Raw...

High-lift camshaft for modified engines with 106"+ displacement and 10.0:1–11.0:1 compression.

Not a bolt-in kit; professional installation required.

Kit contains camshafts, bearings, gearcover gasket, retaining ring, o-ring, thread lock and instructions.

Installer must verify coil bind and clearances. Made in the USA.

€337.57 €424.36

Replacement Ring Set for S&S Pistons — 3.500" bore, standard piston size

-€14.56

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.500" bore, standard...

Replacement ring set for S&S pistons. Includes rings for two pistons. Made in the USA.

€56.59 €71.15

Replacement Ring Set for S&S Pistons — 3.500" bore, +0.020" piston size

-€13.43

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.500" bore, +0.020"...

Replacement ring set for S&S pistons. Sold as a set for two pistons. Made in the USA.

€52.24 €65.67

Replacement Ring Set for S&S Pistons — 3.4375" bore, standard piston, domed

-€14.56

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.4375" bore, standard...

Replacement ring set for S&S pistons. Includes rings for two pistons. Made in the USA.

€56.59 €71.15

Replacement Ring Set for S&S Pistons — Bore 3.4375", Piston +0.060"

-€14.56

S&S CYCLE Replacement Ring Set for S&S Pistons — Bore 3.4375", Piston...

Replacement ring set for two S&S pistons. Made in the USA.

€56.59 €71.15

Replacement Ring Set for S&S Pistons — +0.090" piston, 3.4375" bore

-€14.81

S&S CYCLE Replacement Ring Set for S&S Pistons — +0.090" piston, 3.4375"...

Replacement ring set for S&S pistons. Includes rings for two pistons. Made in the USA.

€57.68 €72.49

-€14.56

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.625", Standard, Domed

Replacement ring set for S&S pistons; includes rings for two pistons and made in the USA.

€56.59 €71.15

High-Performance Replacement Ring Set — Bore 3.875", Displacement 103 cu in

-€9.22

WISECO High-Performance Replacement Ring Set — Bore 3.875",...

Replacement ring set for one piston; verify piston compatibility before purchase.

€26.09 €35.31

High-Performance Replacement Ring Set — Bore 3.875", Oversize +0.020", Displacement 95", VM Series

-€11.86

WISECO High-Performance Replacement Ring Set — Bore 3.875", Oversize...

Replacement rings for one piston; fit only matching pistons from the same manufacturer. Sold as a set for one piston.

€33.53 €45.39

Replacement Ring Set for S&S Pistons — Bore 3.625", Piston +0.010"

-€14.56

S&S CYCLE Replacement Ring Set for S&S Pistons — Bore 3.625", Piston...

Replacement ring set for S&S pistons; includes rings for two pistons. Made in the USA.

€56.59 €71.15

Replacement Ring Set for S&S Pistons — Bore 4.125 in, Piston size +0.020 in

-€19.40

S&S CYCLE Replacement Ring Set for S&S Pistons — Bore 4.125 in, Piston...

Replacement ring set for S&S pistons; sold as a set for two pistons. Made in the USA.

€75.48 €94.88

Replacement Ring Set for S&S Pistons — bore 4.125", piston +0.010"

-€19.40

S&S CYCLE Replacement Ring Set for S&S Pistons — bore 4.125", piston...

Replacement ring set for compatible pistons. Comes as a set for two pistons. Made in the USA.

€75.48 €94.88

-€93.94

S&S CYCLE HP103 Camshaft Kit — 249°/251° duration, 0.575" lift

Bolt-in cam kit for 103" engines; strong midrange power (3,000–6,000 rpm). Requires high-lift valve springs. Made in USA.

€365.33 €459.27

MR103 Easy Start Camshaft Kit — 103" engine, fits 9.7:1–10.5:1 compression

-€240.61

S&S CYCLE MR103 Easy Start Camshaft Kit — 103" engine, fits 9.7:1–10.5:1...

Bolt-in MR103 camshaft kit for 103" engines (9.7:1–10.5:1). Easier starting, full compression at speed. Includes hardware and instructions.

€935.67 €1,176.28

-€314.51

S&S CYCLE MR103 Cam Kit — Intake 226°, Exhaust 252°

Bolt-in camshaft kit for 103" engines. Increases power across the rpm range, with best results from 2500–5500 rpm. Made in the USA.

€888.84 €1,203.35

-€27.67
Out of Stock

S&S CYCLE Replacement Rings 4" — moly-coated

Replacement piston rings for Side Winder pistons. Precision fit with a wear‑resistant coating for durable sealing.

€107.84 €135.51

-€567.14

S&S CYCLE Gear Drive Cam Chest Kit — Easy Start, gear, kit, 310-0812

Bolt-in S&S gear-drive cam chest kit that improves lift and timing with quick-install pushrods. Made in the USA.

€2,205.55 €2,772.69

-€613.80

S&S CYCLE Gear Drive Cam Chest Kit — 585 Series, Easy Start

Complete bolt-in gear-drive cam chest kit that increases lift and optimizes cam timing. Includes S&S Quickee pushrods and premium U.S.-made components for reliable performance.

€2,386.95 €3,000.75

-€116.51

S&S CYCLE Piston Kit 106" Stroker — 106", 4.5" stroke, 3.875" bore

Complete piston kit with pistons, rings, wrist pins and clips; compatible with stock and S&S Super Stock® heads. Made in the USA.

€453.14 €569.65

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