Engine (5)

Replacement Piston Rings — 4.000" bore, 114" displacement, Standard piston size

-€10.61

HASTINGS Replacement Piston Rings — 4.000" bore, 114" displacement,...

Complete replacement set including barrel‑face top rings, Napier second rings, and three‑piece flex vent oil control rings. Enough rings for two pistons.

€41.24 €51.85

-€12.73

HASTINGS Replacement Piston Rings — +0.005", 4.000" bore, 114 cu in

Complete set of top, second, and three-piece oil control rings; includes rings for two pistons.

€49.51 €62.24

-€14.66

HASTINGS Replacement Piston Rings — +0.010" piston, 4.000" bore, 114 cu in

Complete set for two pistons: top barrel-face compression rings, Napier second rings, and three-piece Flex Vent oil rings. PVD-coated faces for improved wear and heat transfer.

€57.01 €71.67

-€1.49

EASTERN MOTORCYCLE PARTS Piston Pin Clips — 10-pack, A-22097-99

Direct-fit piston pin clips for many Harley models. Made in the USA and built to OEM-equivalent standards.

€4.22 €5.71

-€1.41

S&S CYCLE Wrist Pin Circlips — Piston, 4 Pack

Durable retaining rings for wrist-pin applications; precision-formed for reliable fit and service life.

€5.50 €6.91

-€84.67

FEULING OIL PUMP CORP. High Flow Camplate — 7075 billet aluminum, gear drive

The High Flow Camplate increases oil flow and cooling, is pressure tested with a 55-60 psi relief setting, includes bearing and retainer plate hardware, and is for use with Feuling® oil pumps only.

€329.27 €413.94

-€34.97

S&S CYCLE Crankcase Breather Reed Valve — Standard thread size, silver

New-style reed valve that opens on demand to improve performance and prevent high-rpm oil carryover. Fast, simple installation. Made in the USA.

€135.99 €170.96

-€37.15

S&S CYCLE Crankcase Breather Reed Valve — +0.030" thread, Silver

Reed-style breather valve that opens on demand to reduce oil carryover and simplify installation.

€144.49 €181.64

Super Stock® Alternator Style Engine Case — 3.5" bore, fits up to 5" stroke, Black powder-coated

-€855.92

S&S CYCLE Super Stock® Alternator Style Engine Case — 3.5" bore, fits up...

3.5" stock bore alternator-style engine case; fits up to 5" stroke. Machined for EFI and includes complete hardware kit. Made in the USA.

€1,075.39 €1,931.31

-€60.02

TRASK Mystfree Kit — Crankcase breather valve, Aluminum

Improves oil drainage to the rocker; reduces oil misting from engine breathers; machined T-6061 billet construction; made in the U.S.A.

€233.41 €293.43

-€8.08

EASTERN MOTORCYCLE PARTS Dowel Pins — 0.434" x 0.500" L, 10 pack

Replacement dowel pins for precise alignment and secure assembly.

€22.84 €30.92

Pinion Shaft Key & Oil Pump Drive Key — .188" x .469" (PART# 0920-0129), .125" x .375" x .374" (PART# 0920-0130)

-€0.69

S&S CYCLE Pinion Shaft Key & Oil Pump Drive Key — .188" x .469" (PART#...

Replacement pinion and oil pump drive keys for standard bearing diameter. Sizes: .188" x .469" (PART# 0920-0129); .125" x .375" x .374" (PART# 0920-0130).

€2.68 €3.37

-€28.56

S&S CYCLE Crankcase Breather Valve — 310-0742

Stops oil carryover from Twin Cam "A" motors with stock oil pump. Easy to install during cam or oil-pump service. Not for use with Feuling pumps. Made in the USA.

€111.03 €139.59

-€4.28

S&S CYCLE Magnetic Oil Drain Plug — 1/2-20 thread

For use on S&S crankcases built after 05/01/2000. Made in the USA. Collects metallic debris to help protect the engine.

€16.89 €21.17

-€180.59

S&S CYCLE Engine Case — 3.750" bore, Silver powder-coated

Replacement Twin Cam "A" engine cases for stock H-D chassis. Greater strength than stock crankcases; Timken®-style sprocket shaft bearings; O-ring sealed passages. Compatible with most stock components. Includes S&S crankcase breather reed valve. Made in the USA. Professional installation required.

€702.33 €882.92

Crankcase Vent Filters — 0.500" diameter, Black, Chrome, Red

-€6.22

K & N Crankcase Vent Filters — 0.500" diameter, Black, Chrome, Red

Steel-base, one-piece crankcase vent filters. 50.8 mm (2") diameter; 38.1 mm (1½") height. Available with or without mounting stud.

€26.00 €32.22

-€3.41

S&S CYCLE Dowel Pin .430x.499 — Crankcase

Steel dowel pin, .430 x .499 in — precise replacement pin for alignment and fitment.

€4.30 €7.71

-€3.41

S&S CYCLE Crankcase Screen Oil — 5-piece kit

High-flow crankcase screen that traps debris without restricting oil pressure.

€13.31 €16.72

-€1.37

S&S CYCLE Crankcase Screen Oil — S&S Cycle, 31-2010

Pack of 5 crankcase oil screens. Durable mesh construction for reliable debris capture. Easy to install during oil changes.

€5.32 €6.69

-€549.14

S&S CYCLE MK-Series Engine Case — Black, Fits stock touring frame

Complete MK-Series crankcase assembly with stock deck height and large-volume sump. Reinforced for high-stress reliability; includes MSO and full hardware kit.

€2,139.73 €2,688.87

Crankcase MK-Series 4-1/2" — accepts up to 4.5" cylinders, 4.695" spigot bore, Black

-€577.44

S&S CYCLE Crankcase MK-Series 4-1/2" — accepts up to 4.5" cylinders,...

Ready for high-power M8 builds; accepts cylinders up to 4 1/2", with machined oil scraper, large sump and 4.695" spigot bore. No frame modifications required.

€2,250.00 €2,827.44

-€658.49

S&S CYCLE Crankcase MK-Series 4.5" — Black, 4.695" spigot bore

High-capacity engine cases for M8 platforms; accept cylinders up to 4.5", machined oil scraper, large sump, 4.695" spigot bore.

€2,565.77 €3,224.26

-€65.94

S&S CYCLE Crankpin Assembly — P/N 34-2001

Includes crankpin, nuts and key. Made in the U.S.A.

€256.41 €322.35

-€35.40

S&S CYCLE Crankpin Assembly — S&S CYCLE 34-2102, Steel

Complete crankpin assembly with nuts and key. Fits stock and most aftermarket flywheels. Made in the USA.

€137.66 €173.06

-€76.70

S&S CYCLE Crankpin Assembly — Vendor Part Number 34-2503

Direct replacement for stock and S&S flywheels. Includes crankpin, nuts and key. Made in the USA.

€96.36 €173.06

-€39.72

S&S CYCLE Pinion Shaft Assembly — Silver, 33-2024

Includes shaft, nut and keys. For use with standard bearing diameter. Made in the USA.

€154.44 €194.16

-€39.72

S&S CYCLE Pinion Shaft Assembly — 33-2027, Silver

Includes shaft, nut and keys. Made in the USA. For use with standard bearing diameter.

€154.44 €194.16

-€84.33

S&S CYCLE Sprocket Shaft Assembly — Fits S&S® SE or SL flywheels only

Includes tapered shaft, nut and keys. For use with standard diameter bearing. Fits S&S® SE or SL flywheels only. Made in the USA.

€106.06 €190.39

Left Side Sprocket Shaft Bearing Kit — EASTERN MOTORCYCLE PARTS, A-24004-03

-€30.82

EASTERN MOTORCYCLE PARTS Left Side Sprocket Shaft Bearing Kit — EASTERN MOTORCYCLE...

Left side sprocket shaft bearing kit for maintenance and rebuilds. Bearing and bearing race sold separately.

€87.10 €117.92

-€5.08

EASTERN MOTORCYCLE PARTS Cam Support Plate/Cover Bushing — A-25344-99, Pinion

Precision support insert for cam support plate/cover; OEM-quality construction made in the U.S.A., designed to restore proper alignment and reduce wear.

€14.34 €19.42

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