Harley Hardware
Harley Bike Hardware at JJ Motorsports
Finish your Harley build with premium hardware from JJ Motorsports, featuring chrome rotor bolts, exhaust stud kits, and grommet assortments for clean installation and long-lasting reliability on Sportster, Big Twin, Evo, Twin Cam, and M8 models. These high-quality fasteners and grommets ensure perfect fit and show-ready finish.
Shop Performance Tool, Gardner Westcott, and Feuling hardware for proven strength. Explore related categories such as Harley frame and body for fenders and covers, or Harley for seats and exhaust to complete your custom build.
Top Harley Hardware
- Performance Tool Grommet Assortment W5214 – 125-piece rubber grommet kit; perfect for wiring, frame, and tank mounting protection.
- Gardner Westcott Rotor Bolt Set Cast Chrome C-61-32T – Chrome rotor bolt set for cast wheels; polished finish with Torx head for secure mounting.
- Feuling Oil Pump Corp Exhaust Stud Kit 3048 – High-strength exhaust stud kit; includes nuts and washers for leak-free header installation.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
COLONY Acorn Generator Bolts - '58-'69 Big Twin 7113-2
COLONY
$12.95Generator bolt failures can leave you stranded or force unnecessary engine tear-downs. COLONY Acorn Generator Bolts deliver OEM-quality fastening with the reliability your classic Big Twin demands. These U.S.A.-made sets restore proper clamping force and...DS189981- SKU:
- DS189981
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BASE COLOR:
- SILVER
- NUT TYPE:
- ACORN
- PRODUCT NAME:
- HARDWARE KIT
- TYPE:
- NUT
- RIDING STYLE:
- STREET
- APPLICATION:
- GENERATOR
- BASE FINISH:
- CHROME
- TYPE:
- BOLT
- UNITS:
- KIT
$12.95 -
COLONY Transmission Sprocket Nut 36-86 8408-1
COLONY
$15.95A secure transmission sprocket nut is non-negotiable for reliable power delivery and safety at the track or strip. The COLONY 8408-1 is engineered with left-hand threads to prevent unwanted loosening under hard acceleration and engine braking,...DS189975- SKU:
- DS189975
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- APPLICATION:
- TRANSMISSION
- BASE FINISH:
- RAW
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- NUT TYPE:
- LOCK
- PRODUCT NAME:
- NUT
- BASE COLOR:
- SILVER
- MEASUREMENT SYSTEM:
- SAE
$15.95 -
COLONY Acorn Cylinder Base - '57-'84 XL 7018-16
COLONY
$19.95The COLONY Acorn Cylinder Base fastener set delivers the precision hardware your classic Harley needs for a leak-free, secure cylinder installation. These acorn bolts and nuts are engineered to specification for '57-'84 XL models, eliminating guesswork...DS189968- SKU:
- DS189968
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- APPLICATION:
- CYLINDER BASE
- TYPE:
- BOLT
- UNITS:
- KIT
- TYPE:
- NUT
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- HARDWARE KIT
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- NUT TYPE:
- ACORN
$19.95 -
COLONY Acorn Cylinder Base - '78-'84 Big Twin 7813-8
COLONY
$28.95Proper fastening is non-negotiable when it comes to cylinder base integrity on your Big Twin—factory hardware simply doesn't cut it for high-performance or rebuilt engines. The COLONY Acorn Cylinder Base bolt and nut sets are engineered to OEM...DS189967- SKU:
- DS189967
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- APPLICATION:
- CYLINDER BASE
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- HARDWARE KIT
- RIDING STYLE:
- STREET
- TYPE:
- BOLT
- UNITS:
- KIT
- TYPE:
- NUT
- BASE COLOR:
- SILVER
- NUT TYPE:
- ACORN
$28.95 -
COLONY Cylinder Base XLR Type 57-84 XL 7623-8
COLONY
$35.95The COLONY Cylinder Base XLR Type 57-84 XL delivers the precision engineering required for reliable big-twin performance in classic Harley-Davidson applications. This U.S.-manufactured component ensures proper cylinder sealing and alignment, critical for...DS189966- SKU:
- DS189966
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- APPLICATION:
- CYLINDER BASE
- BASE FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 3/8-24
- PRODUCT NAME:
- NUT
- STYLE:
- HIGH TORQUE
- MEASUREMENT SYSTEM:
- SAE
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- UNITS:
- SET
$35.95 -
COLONY Cylinder Base B Bore 36-84 Big Twin 8600-8
COLONY
$35.95A properly sized cylinder base is fundamental to engine reliability and performance in Big Twin applications. The COLONY Cylinder Base B Bore delivers precision engineering that ensures proper sealing, reduces leakage, and maintains consistent...DS189965- SKU:
- DS189965
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- APPLICATION:
- CYLINDER BASE
- BASE FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 7/16-20
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- NUT
- STYLE:
- HIGH TORQUE
- BASE COLOR:
- SILVER
- MEASUREMENT SYSTEM:
- SAE
- UNITS:
- SET
$35.95 -
COLONY Cylinder Base Cap Nut - '36-'77 Big Twin 8437-16
COLONY
$21.95Proper fastener spec is critical on big twin engines—using undersized or incorrect hardware invites oil leaks, stripped threads, and catastrophic failure. The COLONY Cylinder Base Cap Nut delivers OEM-correct fitment with the durability and finish...DS189964- SKU:
- DS189964
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- HEAD TYPE:
- HEX
- TYPE:
- NUT
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- CAP
- APPLICATION:
- CYLINDER BASE
- UNITS:
- KIT
- BASE FINISH:
- CHROME
- RIDING STYLE:
- STREET
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
COLONY Cylinder Base Nut Stock 36-77 BT 8104-16
COLONY
$22.95The cylinder base nut is a critical fastening point that directly impacts engine seal integrity and reliability. Using OEM-equivalent hardware ensures proper clamping force and prevents costly air leaks or catastrophic engine failure. This COLONY chrome...DS189961- SKU:
- DS189961
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- APPLICATION:
- CYLINDER BASE
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- HARDWARE KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$22.95 -
COLONY Cylinder Base Nut Stock 57-84 XL 8106-16
COLONY
$19.95A properly secured cylinder base is non-negotiable for engine reliability, especially on vintage Harley-Davidson XL models where vibration and heat cycles can loosen inferior fasteners. COLONY's OEM-specification cylinder base nut sets ensure consistent...DS189960- SKU:
- DS189960
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- HARDWARE KIT
- RIDING STYLE:
- STREET
- APPLICATION:
- CYLINDER BASE
- UNITS:
- KIT
$19.95 -
COLONY Rocker Box Cap - '66-'84 Big Twin 8449-22
COLONY
$56.95Properly secured rocker box caps are essential for maintaining oil containment and preventing leaks on vintage Big Twin engines. This COLONY cap nut and bolt set delivers OEM-quality fastening with the reliability your classic Harley demands. Replace...DS189951- SKU:
- DS189951
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- CAP
- UNITS:
- KIT
- HEAD TYPE:
- HEX
- TYPE:
- NUT
- BASE FINISH:
- CHROME
- RIDING STYLE:
- STREET
- APPLICATION:
- ROCKER BOX
- BASE COLOR:
- SILVER
$56.95Qty in Cart: 0Quantity:Price:$56.95Subtotal: -
COLONY Rocker Box Nut Chrome 66-84 Big Twin 8608-36
COLONY
$17.95Rocker box fasteners endure constant thermal cycling and vibration in Big Twin engines, making OEM hardware prone to loosening and corrosion over time. COLONY's chrome-plated nut and bolt set delivers corrosion resistance and reliable clamping force...DS189950- SKU:
- DS189950
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- APPLICATION:
- ROCKER BOX
- PRODUCT NAME:
- HARDWARE KIT
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- UNITS:
- KIT
$17.95 -
COLONY Motor Sprocket Nut 30-54 Big Twin 7101-1
COLONY
$13.95A properly secured motor sprocket is non-negotiable for Big Twin reliability and performance. The COLONY Motor Sprocket Nut 7101-1 delivers the clamping force and durability your drivetrain demands, whether you're running stock power or forced induction...DS189865- SKU:
- DS189865
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- SILVER
- MEASUREMENT SYSTEM:
- SAE
- BASE FINISH:
- RAW
- RIDING STYLE:
- STREET
- APPLICATION:
- MOTOR SPROCKET
- PRODUCT NAME:
- NUT
- STYLE:
- OEM STYLE
- UNITS:
- EACH
$13.95 -
COLONY Motor Sprocket Nut 55-06 Big Twin 7826-1
COLONY
$19.95The COLONY Motor Sprocket Nut ensures precise, secure fastening of your Big Twin's sprocket assembly—critical for maintaining proper chain alignment and preventing catastrophic drivetrain failure. This OEM-quality component is engineered to withstand the...DS189864- SKU:
- DS189864
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- NUT
- STYLE:
- OEM STYLE
- UNITS:
- EACH
- BASE FINISH:
- RAW
- APPLICATION:
- MOTOR SPROCKET
- BASE COLOR:
- SILVER
- MEASUREMENT SYSTEM:
- SAE
- RIDING STYLE:
- STREET
$19.95 -
COLONY Transmission Acorn Side Cover - '36-'86 Big Twin 8751-19
COLONY
$25.95Your transmission cover bolts are critical fastening points that demand precision engineering and reliable retention—especially in high-vibration big twin applications. A loose or damaged acorn bolt can lead to oil seepage, compromised cover integrity,...DS189860- SKU:
- DS189860
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BASE COLOR:
- SILVER
- NUT TYPE:
- ACORN
- PRODUCT NAME:
- HARDWARE KIT
- TYPE:
- NUT
- APPLICATION:
- KICKER
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- TYPE:
- BOLT
- UNITS:
- KIT
$25.95 -
COLONY Motor Case Studs 70-78 Big Twin 8140-34
COLONY
$64.95Motor case studs are critical fastening points that secure your engine's core components under extreme heat and vibration. Factory studs can loosen, strip, or fail under sustained high-RPM operation, compromising reliability and risking catastrophic...DS189855- SKU:
- DS189855
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- APPLICATION:
- ENGINE CASE
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BOLT KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$64.95 -
COLONY Motor Case Studs 79-95 Big Twin 8143-34
COLONY
$64.95Motor case studs are critical fasteners that secure your Big Twin engine's primary case halves under extreme pressure and vibration. Using OEM-equivalent studs ensures proper clamping force, prevents case separation, and maintains engine integrity...DS189854- SKU:
- DS189854
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- APPLICATION:
- ENGINE CASE
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BOLT KIT
- UNITS:
- KIT
$64.95 -
COLONY Inner Primary Mounting Kit 55-64 Big Twin 7812-12
COLONY
$37.95Securing your primary cover to factory specifications ensures proper engine sealing and eliminates vibration-induced gaps that compromise both aesthetics and performance. This OE-style mounting kit restores correct fitment on your big twin, preventing...DS189812- SKU:
- DS189812
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- APPLICATION:
- INNER PRIMARY
- BASE COLOR:
- SILVER
- MEASUREMENT SYSTEM:
- SAE
- PRODUCT NAME:
- MOUNTING KIT
- BASE FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- OEM STYLE
- UNITS:
- KIT
$37.95 -
GARDNER-WESTCOTT Chrome Headbolts A-61-100
GARDNER-WESTCOTT
$128.95A quality cylinder head bolt is critical for maintaining proper clamping force and preventing head gasket failure under high combustion pressures. The GARDNER-WESTCOTT Chrome Headbolts A-61-100 deliver reliable fastening with corrosion-resistant plating,...DS189757- SKU:
- DS189757
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- BASE COLOR:
- SILVER
- BASE FINISH:
- CHROME
- FASTENER TYPE:
- 12-POINT FLANGE
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- APPLICATION:
- HEAD BOLT
- PRODUCT NAME:
- BOLT KIT
$128.95 -
COLONY Primary Cover - Polished - '99-'06 FLT 9959-38P
COLONY
$33.95The primary cover is the first thing people see on your FLT, and it deserves to be as refined as the machine itself. A polished finish demands precision manufacturing—this COLONY cover delivers that with meticulous attention to fitment and surface...DS189727- SKU:
- DS189727
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE FINISH:
- CHROME
- BASE FINISH:
- POLISHED
- PRODUCT NAME:
- BOLT KIT
- UNITS:
- KIT
- APPLICATION:
- PRIMARY COVER
- HEAD TYPE:
- SOCKET
- MATERIAL:
- STEEL
- MEASUREMENT SYSTEM:
- SAE
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- STYLE:
- SMOOTH
$33.95 -
COLONY Camshaft Cover - Polished - '00-'06 Dyna FL 9946-20P
COLONY
$18.95A polished camshaft cover serves as both functional protection and a focal point of your engine's aesthetic appeal. The COLONY Camshaft Cover replaces worn or damaged covers while delivering the clean, refined finish that serious riders expect from their...DS189714- SKU:
- DS189714
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- SILVER
- MEASUREMENT SYSTEM:
- SAE
- STYLE:
- SMOOTH
- APPLICATION:
- CAM COVER
- RIDING STYLE:
- STREET
- HEAD TYPE:
- SOCKET
- MATERIAL:
- STEEL
- BASE FINISH:
- CHROME
- BASE FINISH:
- POLISHED
- PRODUCT NAME:
- BOLT KIT
- UNITS:
- KIT
$18.95
