Colony Machine
Colony Machine is a trusted name in Harley Davidson hardware kits, fasteners and precision engineered restoration components. Known for exact OEM style fitment, Colony produces bolts, washers, studs and mounting kits that match or exceed factory specifications. Their hardware is widely used in engine rebuilds, drivetrain service and complete motorcycle restorations thanks to consistent quality and accurate machining. From Twin Cam to Sportster and Shovelhead models, Colony parts offer a reliable solution for maintaining factory level performance and appearance.
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V-Twin - 8623-2 - Seat Clevis Pin and Spring Kit
Colony Machine
$22.50V-Twin - 8623-2 - Seat Clevis Pin and Spring KitDescriptionSeat clevis pin and spring is a reproduction of seat pin and spring retainer used on all models with a seat post. The finish is parkerized...$22.50 -
V-Twin - 8622-16 - Sprocket Cover Stud Cadmium
Colony Machine
$43.05V-Twin - 8622-16 - Sprocket Cover Stud CadmiumDescriptionCadmium sprocket cover stud with nut for side valve models Fits:WL 1929-1952G 1929-1973Additional Information OEM No.34892-33 UOM1 - KIT ...$43.05 -
V-Twin - 8620-17 - Engine Case Bolt Kit Cadmium
Colony Machine
$42.48V-Twin - 8620-17 - Engine Case Bolt Kit CadmiumDescriptionCadmium engine case bolt kit for side valve models Fits:WL 1937-1952G 1937-1973Additional Information UOM1 - KIT ManufacturerColony ...$42.48 -
V-Twin - 8619-17 - Engine Case Bolt Kit Chrome
Colony Machine
$45.13V-Twin - 8619-17 - Engine Case Bolt Kit ChromeDescriptionChrome engine case bolt kit for side valve models Fits:WL 1937-1952G 1937-1973Additional Information UOM1 - KIT ManufacturerColony ...$45.13 -
V-Twin - 8618-20 - Cylinder Head Bolt Set 12 Point Black
Colony Machine
$55.70V-Twin - 8618-20 - Cylinder Head Bolt Set 12 Point BlackDescriptionBlack 12 point cylinder head bolt kit includes ten 7/16"-20 x 2-3/8" 12 point head bolts and ten 7/16" flat washers.These bolts are...$55.70 -
V-Twin - 8617-4 - Spring Fork Front Brake Seal Kit
Colony Machine
$23.67V-Twin - 8617-4 - Spring Fork Front Brake Seal KitDescriptionSpring fork front brake grease seal kit includes spring, steel washer, and cork gasket. Fits:UL 1937-1948EL 1937-1948G 1941-1951FL...$23.67 -
V-Twin - 8612-1 - Oil Tank Plug Black
Colony Machine
$22.60V-Twin - 8612-1 - Oil Tank Plug BlackDescriptionBlack oil tank plug is 5/8"-18. Fits:All modelsAdditional Information UOM1 - EA ManufacturerColony OriginUSA 2025 Catalog Pages425$22.60 -
V-Twin - 8611-1 - Cadmium Timing and Oil Tank Plug
Colony Machine
$19.26V-Twin - 8611-1 - Cadmium Timing and Oil Tank PlugDescriptionCadmium timing and oil tank plug is 5/8"-18. This functional and custom design plug fits Big Twin models and Sportster t iming plug holes...$19.26 -
V-Twin - 8610-1 - Chrome Timing and Oil Tank Plug
Colony Machine
$19.26V-Twin - 8610-1 - Chrome Timing and Oil Tank PlugDescriptionChrome timing and oil tank plug is 5/8"-18. This functional and custom design plug fits Big Twin models and Sportster ti ming plug holes...$19.26 -
V-Twin - 8609-36 - Cadmium Rocker Box Hex Nuts
Colony Machine
$23.67V-Twin - 8609-36 - Cadmium Rocker Box Hex NutsDescriptionRocker box hex nut, cadmium finish. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information UOM1 - KIT ...$23.67 -
V-Twin - 8608-36 - Chrome Rocker Box Hex Nuts
Colony Machine
$25.75V-Twin - 8608-36 - Chrome Rocker Box Hex NutsDescriptionRocker box hex nuts, chrome finish. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information UOM1 - KIT ...$25.75 -
V-Twin - 8606-6 - Chrome Axle Nut Kit Acorn Style
Colony Machine
$44.27V-Twin - 8606-6 - Chrome Axle Nut Kit Acorn StyleDescriptionChrome rear axle acorn type nut kit is a custom hardware kit with installation instructions and fits 1973 and up Big Twi n and XL...$44.27 -
V-Twin - 8605-16 - Cadmium Tappet Block Screw Set
Colony Machine
$27.56V-Twin - 8605-16 - Cadmium Tappet Block Screw SetDescriptionLifter block tapered screw set has cadmium finish with hex heads. Thread is 1/4"-24. Tapered head screw for early type lifter blocks...$27.56 -
V-Twin - 8604-16 - Chrome Tappet Block Hex Screw
Colony Machine
$29.38V-Twin - 8604-16 - Chrome Tappet Block Hex ScrewDescription1/4"-24 lifter base hex screw featuring a chrome finish with stock lifter blocks. Tapered head screw for early type lifter blocks. Fits:EL...$29.38 -
V-Twin - 8601-8 - High Torque 7/16 inch Cylinder Base Nut Black
Colony Machine
$41.00V-Twin - 8601-8 - High Torque 7/16 inch Cylinder Base Nut BlackDescriptionHigh torque 7/16" cylinder base nut features a black finish.Nut measures 7/16". Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL...$41.00 -
V-Twin - 8600-8 - High Torque 7/16 inch Big Bore Cylinder Base Nut Chrome
Colony Machine
$42.22V-Twin - 8600-8 - High Torque 7/16 inch Big Bore Cylinder Base Nut ChromeDescriptionChrome high torque 7/16" cylinder base nut is for 1966-1984 FL, 1971-1984 FX, 1979-1983 FLT and 1982-1983 FXR...$42.22 -
V-Twin - 8520 - Engine Dress Up Cap Kit Chrome
Colony Machine
$83.22V-Twin - 8520 - Engine Dress Up Cap Kit ChromeDescriptionChrome caps for show bike dress up kit. Fits:FXST 1987-1988Additional Information UOM1 - KIT ManufacturerColony OriginUSA StyleCap 2025...$83.22 -
V-Twin - 8518 - Engine Dress Up Cap Kit Chrome
Colony Machine
$83.22V-Twin - 8518 - Engine Dress Up Cap Kit ChromeDescriptionChrome caps for show bike dress up kit. Fits:XL 1985-1986 Evolution 5-SpeedAdditional Information UOM1 - KIT ManufacturerColony OriginUSA ...$83.22 -
V-Twin - 8495-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread Cadmium
Colony Machine
$13.38V-Twin - 8495-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread CadmiumDescriptionTransmission engine drain plug 1/2" X 13 thread, cadmium. Fits:XL 1957-1976 Engine and transmissionFL 1941-1984...$13.38 -
V-Twin - 8494-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread Chrome
Colony Machine
$14.72V-Twin - 8494-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread ChromeDescriptionTransmission engine drain plug, 1/2" X 13 thread, chrome. Fits:XL 1957-1976 Engine and transmissionFL 1941-1984...$14.72 -
V-Twin - 8493-2 - Oil Tank Drain Plug Chrome
Colony Machine
$17.92V-Twin - 8493-2 - Oil Tank Drain Plug ChromeDescriptionChrome oil tank drain plug has a 1/2-20 thread with gasket. Fits:FL 1981-1984FX 1981-1984Additional Information UOM1 - EA ManufacturerColony ...$17.92 -
V-Twin - 8487-1 - Cadmium Spring Fork Stem Nut
Colony Machine
$26.73V-Twin - 8487-1 - Cadmium Spring Fork Stem NutDescriptionSpring fork stem nut cadmium Fits:WL 1929-1952G 1929-1973Additional Information OEM No.46560-40 UOM1 - EA ManufacturerColony OriginUSA ...$26.73 -
V-Twin - 8486-1 - Chrome Spring Fork Stem Nut
Colony Machine
$25.35V-Twin - 8486-1 - Chrome Spring Fork Stem NutDescriptionChrome valve stem nut for side valve models Fits:WL 1929-1952G 1929-1973Additional Information OEM No.46560-40 UOM1 - EA ManufacturerColony ...$25.35 -
V-Twin - 8485-1 - Cadmium Spring Fork Stem Nut
Colony Machine
$26.73V-Twin - 8485-1 - Cadmium Spring Fork Stem NutDescriptionCadmium Spring Fork stem nut is a duplication of original part. Fits:UL 1937-1948EL 1936-1940FL 1941-1948Additional Information OEM No...$26.73 -
V-Twin - 8484-1 - Stock Spring Fork Stem Nut Chrome
Colony Machine
$23.78V-Twin - 8484-1 - Stock Spring Fork Stem Nut ChromeDescriptionStock spring fork stem nut, chrome. Fits:UL 1937-1948EL 1936-1940FL 1941-1948Additional Information OEM No.48561-36 UOM1 - EA ...$23.78 -
V-Twin - 8483-2 - Chrome Dash Panel Center Screw
Colony Machine
$15.64V-Twin - 8483-2 - Chrome Dash Panel Center ScrewDescriptionChrome Dash Panel Center Screw Fits:UL 1947-1948WL 1947-1952FL 1947-1967Additional Information OEM No.71075-47 UOM1 - EA ...$15.64 -
V-Twin - 8480-8 - Acorn Tappet Base Bolt 1/4 inch X 24 Thread
Colony Machine
$35.55V-Twin - 8480-8 - Acorn Tappet Base Bolt 1/4 inch X 24 ThreadDescriptionAcorn tappet base bolt 1/4" X 24 thread, without taper. Fits:EL 1936-1940FL 1941-1975FX 1971-1975Additional Information UOM1 -...$35.55 -
V-Twin - 8479-2 - Rear Chain Adjuster Cadmium
Colony Machine
$27.80V-Twin - 8479-2 - Rear Chain Adjuster CadmiumDescriptionCadmium rear chain adjuster for side valve models Fits:WL 1929-1952Additional Information UOM1 - SET ManufacturerColony OriginUSA 2025...$27.80 -
V-Twin - 8474-8 - Cylinder Base Hex Cap Nut Chrome Milled
Colony Machine
$38.11V-Twin - 8474-8 - Cylinder Base Hex Cap Nut Chrome MilledDescriptionCylinder base hex cap nut, chrome milled finish. Fits:FLT 1979-1983FXR 1982-1983FL 1978-1984FL 1979-1983FX 1978-1984Additional...$38.11 -
V-Twin - 8449-22 - Rocker Box Nut Kit Cap Style
Colony Machine
$61.37V-Twin - 8449-22 - Rocker Box Nut Kit Cap StyleDescriptionRocker box nut kit, cap style. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information UOM1 - KIT ManufacturerColony ...$61.37 -
V-Twin - 8442-19 - Chrome Transmission Side Cover Kit
Colony Machine
$32.91V-Twin - 8442-19 - Chrome Transmission Side Cover KitDescriptionChrome cap style kit includes transmission side cover and clutch arm nuts. Fits:UL 1937-1948FX 1971-1984EL 1936-1940FL...$32.91 -
V-Twin - 8437-16 - Cylinder Base Nut Kit Cap Chrome
Colony Machine
$28.64V-Twin - 8437-16 - Cylinder Base Nut Kit Cap ChromeDescriptionCylinder base nut kit cap, chrome 8 piece Fits:FX 1971-1977EL 1936-1940FL 1941-1977Additional Information UOM1 - KIT ManufacturerColony...$28.64 -
V-Twin - 8429-1 - Chrome Cap Nut 9/16 inch-12 Coarse Thread
Colony Machine
$11.86V-Twin - 8429-1 - Chrome Cap Nut 9/16 inch-12 Coarse ThreadDescriptionChrome cap nut coarse, 9/16"-24 thread, Packed Each. Fits:All ModelsAdditional Information UOM1 - EA ManufacturerColony ...$11.86 -
V-Twin - 8427-2 - Chrome Cap Nut 7/16 inch-14 Coarse Thread
Colony Machine
$11.86V-Twin - 8427-2 - Chrome Cap Nut 7/16 inch-14 Coarse ThreadDescriptionChrome cap nut coarse, 7/16"-14 thread. Fits:All ModelsAdditional Information UOM1 - SET ManufacturerColony OriginUSA ...$11.86 -
V-Twin - 8425-4 - Chrome Cap Nut 5/16 inch-18 Coarse Thread
Colony Machine
$14.72V-Twin - 8425-4 - Chrome Cap Nut 5/16 inch-18 Coarse ThreadDescriptionChrome cap nut coarse, 5/16"-18 thread. Fits:All ModelsAdditional Information UOM4 - PK ManufacturerColony OriginUSA ...$14.72 -
V-Twin - 8420-1 - Chrome Cap Nut Fine 1/2 inch-20 Thread
Colony Machine
$12.46V-Twin - 8420-1 - Chrome Cap Nut Fine 1/2 inch-20 ThreadDescriptionChrome cap nut fine, 1/2"-20 thread, Packed Each. Fits:All ModelsAdditional Information UOM1 - EA ManufacturerColony OriginUSA ...$12.46 -
V-Twin - 8419-2 - Chrome Cap Nut Fine 7/16 inch-20 Thread
Colony Machine
$13.46V-Twin - 8419-2 - Chrome Cap Nut Fine 7/16 inch-20 ThreadDescriptionChrome cap nut fine, 7/16"-20 thread, Packed 2. Fits:All ModelsAdditional Information UOM1 - SET ManufacturerColony OriginUSA ...$13.46 -
V-Twin - 8417-4 - Chrome Cap Nut Fine 5/16 inch-24 Thread
Colony Machine
$14.72V-Twin - 8417-4 - Chrome Cap Nut Fine 5/16 inch-24 ThreadDescriptionChrome cap nut fine, 5/16"-24 thread, Packed 4. Fits:All ModelsAdditional Information UOM4 - PK ManufacturerColony OriginUSA ...$14.72 -
V-Twin - 8412-1 - Throwout Bearing Assembly
Colony Machine
$74.58V-Twin - 8412-1 - Throwout Bearing AssemblyDescriptionThrowout bearing assembly for side valve models Fits:G 1941-1973WL 1941-1952Additional Information OEM No.37287-41 UOM1 - EA ...$74.58 -
V-Twin - 8411-8 - Clutch Arm Rebuild Kit Cadmium
Colony Machine
$43.05V-Twin - 8411-8 - Clutch Arm Rebuild Kit CadmiumDescriptionCadmium clutch arm rebuild kit for side valve models Fits:WL 1944-1952Additional Information OEM No.37077-44 UOM1 - KIT ...$43.05
Colony Machine – Harley Davidson Hardware Kits, Fasteners & Restoration Components
Colony Machine has been a leading supplier of Harley Davidson hardware and fastener kits for decades, earning a strong reputation among builders, mechanics and restoration experts. Every component is produced with strict quality control, offering precise fitment that replicates or improves upon original factory hardware. Their large catalog includes bolt assortments, acorn nuts, engine studs, brake hardware, pulley mount kits and many other Harley specific fasteners, making them a top choice for riders who want dependable components that install easily and stand up to long term use.
The brand supports a wide range of Harley platforms including Twin Cam, Milwaukee Eight, Sportster, Shovelhead, Panhead, Evolution and classic K model engines. Popular offerings include primary cover bolt kits, rocker cover bolts, rear pulley hardware, exhaust stud and nut sets, magnetic oil tank drain plugs, gas tank mount kits and head bolt sets. Riders can choose from chrome, cadmium or parkerized finishes to match a period correct restoration or upgrade to a cleaner, more polished look. Their consistent sizing and machining accuracy make them a trusted option for avoiding alignment issues and ensuring proper torque across all components.
Colony Machine products are especially valuable for restoration, repair, and long term maintenance because they remove the uncertainty that comes with old or mismatched hardware. Their emphasis on material strength, thread precision, and manufacturing consistency ensures secure installation whether you are rebuilding a Shovelhead top end, replacing a Sportster rocker shaft plug or updating a touring bike primary cover. With thousands of Harley dedicated fasteners available, Colony remains one of the most reliable sources for high quality hardware that keeps motorcycles running strong and looking factory correct.