Engine (9)

Rotor, Sprocket and Belt Mounting Hardware Kit — 31.8 mm (1-1/4"), for cast front & rear wheels

-€3.82

COLONY Rotor, Sprocket and Belt Mounting Hardware Kit — 31.8 mm...

Complete mounting kit for rotor, sprocket and belt drives. Includes all necessary hardware. Compatible with most H-D systems.

€10.80 €14.62

Head Bolt Covers — Chrome, Hex cap, 4 Pack

-€5.70
Out of Stock

COLONY Head Bolt Covers — Chrome, Hex cap, 4 Pack

Covers factory 12-point head bolts; includes setscrews.

7/16" size for secure fit.

€22.09 €27.79

-€17.27

COLONY Head Bolt Kit — Chrome

Hardened to OEM specs; rolled threads for superior strength; precision machined; made in the USA.

€67.15 €84.42

-€14.08

COLONY Head Bolt Kit — Chrome, Silver

Durable head bolt kit hardened to OEM specs with rolled threads for superior strength and precise fit. Made in the USA.

€54.77 €68.85

-€6.27

COLONY Head Bolt Covers — Chrome, 4 pack

Slip-on covers conceal factory 12-point head bolts; include setscrews. Fit for 7/16" heads.

€24.36 €30.63

-€16.85

PRO-ONE PERF.MFG. Millennium Points Cover — Chrome

Custom aluminum cover with ball-milled finish. Sold individually.

€47.61 €64.46

-€18.53

PRO-ONE PERF.MFG. Chrome Billet Inspection Cover — Smooth

Polished chrome billet inspection cover in ball-end milled or smooth style; includes chrome hardware. Sold each.

€52.38 €70.91

Chrome Billet Inspection Cover — Chrome, Ball-milled, with Forward Controls

-€18.53
Out of Stock

PRO-ONE PERF.MFG. Chrome Billet Inspection Cover — Chrome, Ball-milled, with...

Billet-style inspection cover with included mounting hardware. Sold individually.

€52.38 €70.91

-€2.82

COLONY Oil Screen Plug — Chrome

Oil screen cap for Big Twin models. Made in the USA.

€7.99 €10.81

-€1.90
Out of Stock

COLONY Oil Screen Plug — Cadmium

Oil screen plug for Big Twin models; made in the USA. Direct fit and simple installation.

€5.34 €7.24

-€3.60

COLONY OEM-Style Oil Pump Plug — Chrome

OEM-style replacement plug for oil pump openings. Made in the USA.

€10.16 €13.76

-€3.60
Out of Stock

COLONY OEM-Style Oil Pump Plug — Chrome

OEM-style oil pump plug — direct replacement to restore sealing and pressure control. Made in the USA.

€10.16 €13.76

OEM-Style Oil Pump Plug — Cadmium finish

-€1.73

COLONY OEM-Style Oil Pump Plug — Cadmium finish

OEM-style oil pump plug for restoration and maintenance. Made in the USA. Check fitment before installation.

€4.90 €6.63

-€1.78

COLONY Oil Pump Mounting Hardware — Chrome, Kit

Hard-to-find 1/4"-24 hex fasteners, six-pack; OEM-style complete set with studs and fasteners.

€5.01 €6.79

-€1.53

COLONY Oil Pump Mounting Hardware — 8111-12, Cadmium, Kit

Includes 1/4"-24 hex nuts in a six-pack and an OEM-style complete assembly with studs and nuts for proper fit.

€4.33 €5.86

-€1.91

COLONY Oil Pump Mounting Hardware — Chrome

OEM-style kit includes studs, nuts and a six-pack of hard-to-find 1/4"-24 hex nuts for oil pump mounting.

€5.42 €7.33

-€7.42

COLONY Oil Pump Mounting Hardware — Chrome

Complete oil pump mounting kit with 1/4"-24 hex nuts (six-pack) and OEM-style studs and nuts for easy installation.

€28.88 €36.30

-€8.08

COLONY Oil Pump Mounting Hardware — 1/4-24, Cadmium, Kit

OEM-style set with studs, nuts and six 1/4-24 hex nuts for pump mounting.

€22.85 €30.93

-€8.08

COLONY Oil Pump Mounting Hardware — Parkerized finish

Includes 1/4"-24 hex nuts (six-pack). OEM-style kit with studs and nuts for oil pump mounting.

€22.85 €30.93

-€48.87

PRO-ONE PERF.MFG. Motor Mount — Chrome, 6061 T-6 aluminum

Precision-machined motor mount with plated finish. Includes mounting hardware; ignition/starter switch sold separately.

€138.15 €187.02

-€16.88

COLONY Replacement Cylinder Stud Set — Cylinder, 8-pack

High-strength fastener kit, heat-treated for durability and built to meet or exceed original equipment standards.

€69.66 €86.54

-€11.65

COLONY Replacement Aluminum Pushrods — Set of 4

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

€45.31 €56.96

-€15.06

COLONY Pushrod Set — Set of 4

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

€58.55 €73.61

-€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

-€8.94

COLONY Cylinder Base Studs — 8 pack, Black

Heat-treated studs offering strong, durable performance; equal to or better than original equipment; made in the USA.

€25.27 €34.21

-€9.60

COLONY Cylinder Base Studs — 8 pack, Black

Heat-treated studs that meet or exceed original equipment. Made in the U.S.A.

€27.14 €36.74

-€11.25

COLONY Pushrod Tube Kit — upper mounting position, set of 4, chrome

Exact OEM duplicate parts for proper fitment; upper, lower and inner cover kits sold separately.

€43.80 €55.05

-€13.33

COLONY Pushrod Tube Kit — set of 4, chrome, lower mount

Exact OEM duplicate kits for proper fitment; upper, lower and inner cover kits sold separately.

€51.78 €65.11

-€3.97

COLONY Front Belt Drive Pulley Nut — Chrome

Secures the front pulley in open primary belt drive applications. Made in the USA.

€11.23 €15.20

-€4.59

COLONY Oil Tank Line Fittings — 3 Pack, Chrome

Exact duplicate oil line fittings compatible with braided stainless or stock rigid lines; made in the U.S.A.

€12.99 €17.58

shop by category

Engine

Subcategories

Complete Engines

Performance Kits

Internal Parts

Cooling

Gaskets & O-Rings

Camshafts

Contact us

Products

Our company