Internal Parts

-€6.92

HASTINGS Replacement Piston Rings — 3.750 in, Moly coated, Set

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

€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

-€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

-€8.71

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.

€15.25 €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 — Bore 3.000"

Includes top and second compression rings plus three-piece oil control rings. Promotes side sealing for improved oil economy. Includes enough rings for two pistons; two rings per groove except rails. Made in the USA.

€17.28 €21.73

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

-€8.18

HASTINGS Replacement Piston Rings — 3.937" bore, 107" displacement,...

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

€31.78 €39.96

Replacement Piston Rings — Piston size +0.005", Bore 3.937", 107 cu in

-€14.17

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

Complete replacement piston ring set with PVD coating: barrel face top rings, Napier second rings, and three‑piece flex vent oil control rings. Includes enough rings for two pistons.

€55.10 €69.27

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

-€13.81

HASTINGS Replacement Piston Rings — Bore 3.937", Displacement 107",...

Complete ring set for two pistons with PVD-coated barrel-face top rings, Napier second rings, and three-piece Flex Vent oil control rings.

€53.73 €67.54

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

-€2.75

COLONY OEM-Style Oil Pump Plug — Chrome

Precision OEM-style oil pump plug for reliable sealing and easy installation. Made in the USA.

€7.80 €10.55

Tubeless Valve Stem — Fits 11.9 mm (0.47") or 15 mm (0.59"), 29.3 mm (1-3/16"), Chrome

-€3.11

PARTS UNLIMITED Tubeless Valve Stem — Fits 11.9 mm (0.47") or 15 mm (0.59"),...

Precision-machined tubeless valve with self-sealing hex cap; anchor nut, thrust washer and rubber seal included. May require drill enlargement for Lester™ mags.

€6.66 €9.77

-€2.61

COLONY Tappet Adjuster Locknuts — 4-pack

Split locknuts with 9/32"-32 thread; made in the U.S.A.

€7.39 €10.00

-€14.73

COLONY Replacement Aluminum Pushrods — Set of 4

Aircraft-grade pushrods with heat-treated steel tips; fits stock stroke lengths.

€57.31 €72.04

-€17.48

COLONY Replacement Cylinder Stud Set — 8-pack

Heat-treated studs that meet or exceed original equipment standards for reliable clamping and long service life.

€67.95 €85.43

-€16.93

COLONY Twin Cam Quick Install Lower Pushrod Tube Kit — 4-pack, lower

Kit that provides four short lower tubes and clips for easy access to the adjuster and lock nuts when installing adjustable pushrods on Twin Cam motors.

€65.86 €82.79

-€16.53

COLONY Pushrod Tube Kit — Chrome, Inner mounting, Set of 4

OEM-duplicate pushrod tube kits for proper fitment. Upper, lower and inner cover kits sold separately. Made in the U.S.A.

€20.77 €37.30

-€3.96

HASTINGS Replacement Piston Rings — 3.437" bore, Set

Includes top and second compression rings plus three-piece oil control rings; made in the USA. Fits two pistons; two rings per groove unless noted.

€15.35 €19.31

-€6.26

HASTINGS Replacement Piston Rings — 3.437" bore, +0.040" oversize

Complete replacement piston ring kit for two pistons; restores compression, controls oil consumption, and improves sealing.

€13.05 €19.31

-€3.50

HASTINGS Replacement Piston Rings — 3.538" bore, +0.040" oversize

Complete set of top, second, and three-piece oil control rings; enough for two pistons. Made in the USA.

€11.04 €14.54

-€2.51

HASTINGS Replacement Piston Rings — 3.498" bore

Complete set of top, second, and oil control rings for two pistons; three-piece oil control, cast coated, made in the USA.

€9.76 €12.27

-€3.38

HASTINGS Replacement Piston Rings — 3.498" bore, +0.010" oversize

Piston rings including top, second, and three-piece oil control rings. Improves heat transfer and controls combustion gases. Includes enough rings for two pistons.

€13.11 €16.49

-€6.93

HASTINGS Replacement Piston Rings — Bore 3.498", Oversize +0.020"

Replacement piston rings that provide reliable sealing, improved oil control, and consistent heat transfer; includes rings for two pistons.

€26.93 €33.86

-€5.55

HASTINGS Replacement Piston Rings — 3.498" bore, +0.030" oversize

Includes top and second compression rings plus three-piece oil control rings. Enough rings for two pistons; two rings per groove except rails. Made in the USA.

€11.61 €17.16

-€2.93

HASTINGS Replacement Piston Rings — 3.498" bore, +0.005"

Complete set: top, second, and oil control rings.
Top rings barrel face; second rings reverse torsional taper.
Three-piece oil rings with rails and expanders for positive oil control.
Includes enough rings for two pistons; read piston instructions for end gap.

€11.36 €14.29

-€6.01

HASTINGS Replacement Piston Rings — 3.750" bore

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

€23.36 €29.37

-€9.06

HASTINGS Replacement Piston Rings — Bore 3.750", Oversize +0.010"

Complete replacement ring set includes top, second, and three‑piece oil control rings; restores sealing and oil control for two pistons.

€35.20 €44.26

-€7.00

HASTINGS Replacement Piston Rings — 3.875" bore, standard

Complete set of top, second and oil control rings for two pistons; restores compression and improves oil control.

€27.18 €34.18

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