Engine (4)

-€135.98

S&S CYCLE Piston Kit Big Bore 4.250" for M8 Models — 4.250" bore, 128 cu in

Forged aluminum piston kit engineered for durability and reliable engine performance. Ideal for rebuilds and upgrades.

€528.83 €664.81

-€109.47

S&S CYCLE HP103 Easy Start Camshaft Kit — Grind HP103, Chain

Easy-start camshaft kit for 103" engines; bolt-in design, high-rpm power band, includes hardware. Not for models with OEM compression releases.

€425.73 €535.20

-€119.17

S&S CYCLE 640 Easy Start Camshaft Kit — Chain, S&S CYCLE 330-0331

Reduces crank compression for easier starts, then restores full compression for normal running. Fits 95", 96", 103" and 110" engines with 10.5:1–11.5:1 compression; requires high-lift springs and adjustable pushrods. Not for models with OEM compression releases.

€376.07 €495.24

-€216.89

S&S CYCLE MR103 Easy Start Camshaft kit — Gear type

Bolt-in camshaft kit for easier starting on 103" engines; restores full compression once running. Includes cams and hardware; installer must verify clearances.

€843.44 €1,060.33

-€200.13

S&S CYCLE 635 H.O. Gear Drive Camshaft Kit — Gear drive, Raw finish

High‑lift camshaft kit for modified engines 106"+ displacement; increases accuracy by removing chain lash; requires professional installation and press.

€631.54 €831.67

-€14.81

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.4375 in, +0.030 in

Replacement ring sets for S&S pistons only. Rings come as sets for two pistons. Made in the USA.

€57.68 €72.49

Replacement Ring Set for S&S Pistons — Bore 3.4375", +0.050" piston, Domed, Set

-€14.27

S&S CYCLE Replacement Ring Set for S&S Pistons — Bore 3.4375", +0.050"...

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

€45.03 €59.30

Camshafts 54-84 Big Twins with S&S Valve Train Conversion Kit — S&S CYCLE Kit, PN 106-6027

-€55.80

S&S CYCLE Camshafts 54-84 Big Twins with S&S Valve Train Conversion Kit...

Quality camshaft kit for 1954–1984 Big Twin models; higher lift and improved valve timing. Quiet hydraulic operation when used with hydraulic conversion kits.

€162.43 €218.23

-€8.88

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.625" bore, +0.040", Set

Replacement rings for S&S pistons. Includes rings for two pistons. Made in the U.S.A.

€28.01 €36.89

-€2.11

S&S CYCLE Idler Gear Shim — 1.37 mm (0.054 in)

Precision shims for circuit breaker drive and idler gear assemblies. Sold as a set.

€6.16 €8.27

-€2.65

S&S CYCLE Idler Gear Shim — 1.47 mm (0.058")

Precision shims for circuit breaker drive and idler gear assemblies. Improve gear mesh and reduce play for smoother operation.

€7.72 €10.37

585V Camshaft — Grind 585V, Intake 245°, Exhaust 260°, Lift 0.585", Raw

-€51.63

S&S CYCLE 585V Camshaft — Grind 585V, Intake 245°, Exhaust 260°, Lift...

Thoroughly tested S&S camshaft for 80"–96" engines; optimized for 3500–6000 rpm. Made in USA. Installer must verify clearances.

€200.80 €252.43

$Replacement Piston Rings — 3.750\" bore, standard$

-€6.92

HASTINGS Replacement Piston Rings — 3.750\" bore, standard

Complete replacement set includes top and second compression rings plus three-piece oil control rings; restores sealing and oil control for two pistons.

€26.90 €33.82

Replacement Piston Rings — 3.750 in bore, +0.010 in oversize, moly coated

-€5.67

HASTINGS Replacement Piston Rings — 3.750 in bore, +0.010 in oversize,...

Complete replacement ring set with top and second compression rings plus three-piece oil control rings. Restores compression, controls oil, and improves oil economy. Includes enough rings for two pistons. Made in the USA.

€22.06 €27.73

Replacement Ring Set for S&S Pistons — Bore 3.625 in, Piston +0.030 in

-€13.10

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

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

€50.97 €64.07

-€192.09

S&S CYCLE 551G Gear Drive Camshaft Kit — 96–106 CID, 551 Series grind

Bolt-in gear drive cam kit for 96–106 CID engines (9:1–9.9:1). Improves low- and midrange torque, increases valve timing accuracy, and includes gears, bearings, gaskets, and instructions. Requires professional tools and cover modification; not for 10:1+ compression.

€747.05 €939.14

-€15.29

S&S CYCLE Replacement Ring Set for S&S Pistons — 3.927" bore, standard size

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

€59.47 €74.76

-€192.09

S&S CYCLE 475G Camshaft Kit — 107–135 cu in, Chrome

Bolt-in cam kit for 2200–5200 RPM performance; boosts horsepower past 100. Compatible with compression ratios up to 11.0:1. Includes bearings, o-rings, and hardware. No tuning required.

€747.05 €939.14

-€17.47

S&S CYCLE Replacement Ring Set for S&S Pistons — 4.125" bore, flat top

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

€67.97 €85.44

508 Camshaft — 235° exhaust, 217° intake, 0.508″ exhaust lift, 0.508″ intake lift, 508 Series grind

-€51.63

S&S CYCLE 508 Camshaft — 235° exhaust, 217° intake, 0.508″ exhaust lift,...

Proven 508-series camshaft: bolt-in design, quiet valve train and strong low- to mid-range power. Made in the USA.

€200.80 €252.43

-€8.32

HASTINGS Replacement Piston Rings — +0.020 in, Moly coated

Includes top and second compression rings plus three-piece oil control rings; enough for two pistons.

€32.36 €40.68

-€34.97

S&S CYCLE Ring Set — Piston, 2-pack

Complete set of piston rings for reliable sealing and engine performance.

€135.99 €170.96

-€4.90

HASTINGS Replacement Piston Rings — HASTINGS, Set

Complete set of top, second, and three-piece oil control rings for two pistons. Barrel face top rings and Napier second rings provide improved sealing and heat transfer; three-piece Flex Vent oil rings ensure positive oil control. Made in the USA.

€19.06 €23.96

-€84.68

S&S CYCLE MR103 Cam Kit — Exhaust 252°, Intake 226°, Lift 0.585"

Bolt-in camshaft for 103” engines. More power between 2,500–5,500 rpm. Works with stock and ported heads. Made in the USA. Professional installation required; check clearances and use proper tools.

€329.33 €414.01

-€4.96

HASTINGS Replacement Piston Rings — 3.498" bore, +0.040" oversize

Complete set of top, second, and oil control rings for two pistons. Barrel face top rings, reverse torsional second rings, and three-piece oil control rails. Made in USA.

€19.26 €24.22

HP103 Camshaft Kit — S&S CYCLE, Grind HP103, Gear kit, Intake & Exhaust

-€188.80

S&S CYCLE HP103 Camshaft Kit — S&S CYCLE, Grind HP103, Gear kit, Intake...

Bolt-in camshaft kit for 103" engines; strong midrange power (3,000–6,000 rpm). Requires high-lift valve springs and clearance checks.

€734.19 €922.99

-€134.92

S&S CYCLE MR103 Camshaft with Inner Gears Only — 103" engine, gear drive

Camshaft intended for engines converted to an S&S gear drive; bolt-in for 103" engines. Requires high-performance valve springs and installer clearance checks.

€392.77 €527.69

Replacement Piston Rings — 3.937" bore, 107 cu in displacement, Standard piston size

-€8.18

HASTINGS Replacement Piston Rings — 3.937" bore, 107 cu in...

Complete replacement ring set for two pistons with PVD coating and three-piece oil control rings.

€31.78 €39.96

Replacement Piston Rings — Bore 3.937", Piston +0.010", Displacement 107"

-€13.81

HASTINGS Replacement Piston Rings — Bore 3.937", Piston +0.010",...

Complete replacement piston ring set for two pistons; includes PVD-coated barrel-face top rings, Napier second rings, and three-piece oil control rings. Made in the USA.

€53.73 €67.54

-€119.80

S&S CYCLE 500 Camshafts — 264° duration, 0.500" lift, Raw

Bolt-in camshafts tested on dyno, street and track. Provide excellent torque with stock or ported heads. Recommended for modified engines up to 89" displacement. Operates best from 2000 to 6000 rpm.

€465.89 €585.69

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