Engine

Universal Adapter Fitting — 45° fitting, -6 AN male, 1/8" NPT male, Anodized Black

On sale!
-€2.47

RUSSELL Universal Adapter Fitting — 45° fitting, -6 AN male, 1/8" NPT...

Compact adapter for secure hose and connector joins; easy to install and maintain.

€5.82 €8.29

On sale!
-€4.58

RUSSELL Universal Hose End — -8 AN female, 45° fitting, Anodized Black

Lightweight anodized hose end engineered for universal hoses; precision-machined and sold individually.

€17.83 €22.41

On sale!
-€3.51

RUSSELL Universal Hose End — -8 AN, 90° fitting, Anodized Black

Precision-machined hose end for reliable, leak-resistant connections.

€13.63 €17.14

On sale!
-€27.51

KURYAKYN Oil Line Nacelle Cover — Chrome

Dresses the area between the cam cover and transmission and routes stock oil lines through the cover.

€57.42 €84.93

-€10.34

KURYAKYN Rear Cylinder Base Cover — Chrome, Rear

Covers the gap between the transmission top cover and the engine cylinder for a finished look. Installs quickly and easily. Durable polished finish.

€40.20 €50.54

Oil Filler Spout Cover — Chrome, compatible with Harley-Davidson transmission interface covers

-€15.93

KURYAKYN Oil Filler Spout Cover — Chrome, compatible with...

Precision metal cover that enhances the oil filler neck and fits Harley-Davidson transmission interface covers.

€61.94 €77.87

-€18.21

KURYAKYN Cylinder Base Timing Hole Cover — Chrome

Smooths the transition from cylinders to engine cases; easy installation; precision construction for lasting fit and finish.

€70.78 €88.99

-€17.37

KURYAKYN Cylinder Base Timing Hole Cover — Chrome

Smooths the transition from the cylinders to the engine cases for a clean finish. Easy installation with basic hand tools.

€67.56 €84.93

-€18.51

KURYAKYN Oil Cooler Cover — Chrome

Direct-fit oil cooler cover that installs like the stock factory cover for a quick bolt-on upgrade.

€71.98 €90.49

-€33.71

KURYAKYN One Piece Inner Primary Cover — Chrome

Precise fit with finished edges. Four mounting points for secure, quiet operation. Not for use with rear suspension lowering kits unless specified.

€131.13 €164.84

Precision® Tappet Block Accent Cover — Black gloss

-€20.27

KURYAKYN Precision® Tappet Block Accent Cover — Black gloss

Clean, simple addition that enhances engine style. Brilliant gloss finish.

€78.83 €99.10

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

-€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

-€5.67

HASTINGS Replacement Piston Rings — 3.750" bore, +0.010" oversize

Complete replacement piston ring set includes top and second compression rings plus three-piece oil control rings; restores compression, improves sealing and oil economy, and includes enough rings for two pistons. Made in the USA.

€22.06 €27.73

-€8.32

HASTINGS Replacement Piston Rings — Bore oversize +0.020"

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

€32.36 €40.68

-€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

-€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

-€4.45

HASTINGS Replacement Piston Rings — 3.000" bore, moly-coated

Complete set including top, second, and three-piece oil control rings; barrel-face top rings and Napier second rings. Includes enough rings for two pistons.

€17.28 €21.73

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 — Piston size +0.005", bore 3.937", displacement 107"

-€14.17

HASTINGS Replacement Piston Rings — Piston size +0.005", bore 3.937",...

Complete replacement ring set for two pistons, including barrel‑face top rings, Napier second rings, and three‑piece oil control rings for improved sealing and oil economy.

€55.10 €69.27

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

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

-€10.61

HASTINGS Replacement Piston Rings — 4.000" bore, Standard piston size,...

Complete replacement set with top, second, and three-piece oil control rings; PVD coating on top rings; includes rings for two pistons.

€41.24 €51.85

Replacement Piston Rings — Piston size +0.005", Bore 4.000", Displacement 114"

-€12.73

HASTINGS Replacement Piston Rings — Piston size +0.005", Bore 4.000",...

Complete replacement set with PVD-coated barrel face top rings, Napier second rings, and three-piece oil control for improved sealing and oil economy.

€49.51 €62.24

-€14.66

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

Complete set of top and second compression rings plus three‑piece oil control rings for two pistons; PVD coated and made in the USA.

€57.01 €71.67

Inner Primary Front Cover Extension — Inner Primary, Front, Chrome

-€11.37

KURYAKYN Inner Primary Front Cover Extension — Inner Primary, Front,...

Cover extension that protects the shift pivot and grease fitting; easy bolt-on installation.

€44.24 €55.61

-€10.25

KURYAKYN Rocker Box Bolt Cover — fits rocker box, chrome

Protects exposed bolts; covers extend 5/8” above bolt; simple installation. Ensure adequate clearance before installing.

€39.84 €50.09

-€7.28

KURYAKYN Rocker Box Bolt Cover — 5/8" height, Chrome, 4 pack

Simple covers that raise 5/8" above the rocker box bolt for a clean, finished look.

€28.32 €35.60

Custom Hot Spots™ End Plug — 1/4", For Allen Head, Silver

-€2.25

KURYAKYN Custom Hot Spots™ End Plug — 1/4", For Allen Head, Silver

Provides a smooth, protective finish for bolts while helping prevent rust.

€8.76 €11.01

-€22.55

KURYAKYN Tappet Block Accent — Lifter Block, Chrome

Clean, simple styling for your engine
High-polish mirror finish for a refined look
Durable, bolt-on installation

€87.68 €110.23

-€21.59

KURYAKYN Tappet Block Accent — Chrome

Clean, simple addition that adds style to your engine with a brilliant chrome finish.

€83.95 €105.54

-€8.99

KURYAKYN Oil Pressure Sending Unit Cover — Chrome

Complete upper and lower cover set for single-terminal gauge-style oil pressure sending units; requires removal of the sending unit for installation.

€34.98 €43.97

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