Harley Hardware Parts

Engine bolt covers are often overlooked, yet they're one of the most visible details on your motorcycle's powerplant. Ciro's fluted cap design transforms those utilitarian fasteners into polished focal points that elevate your bike's overall appearance...

Visible fasteners are the first thing people notice on a custom build—rusty or worn bolts instantly undermine your craftsmanship. The CIRO Cap Fluted M8 Black keeps your engine bay looking finished and professional while protecting bolt heads from...

Engine bay aesthetics matter, especially when you've invested in quality mechanical work. The CIRO Cap Fluted Engine Black transforms visible fasteners from eyesores into polished details that reflect the quality of your build. Simple press-on...

Visible fasteners are often overlooked, but worn or corroded bolt heads can undermine the professional appearance of any build and expose underlying rust issues. The CIRO Caps Crown M8 Chrome delivers a straightforward solution: genuine chrome-plated...

Caps install quick and easy on windshield screws included with Ciro trim for '96+ fairings, Not for use with OEM screws

Cover up old, dull or rusty bolts, Precision fit and simple press-on installation

COLONY Spacers maintain precise bearing alignment and critical spacing tolerances in your Sportster's primary drivetrain, directly impacting clutch engagement consistency and overall reliability. As OEM replacement components, these spacers restore...

Gas tank spacers are critical components that maintain proper clearance and alignment between your fuel system and chassis, preventing costly damage from contact and vibration. The COLONY Spacers Gas Tank 3383-4 delivers OEM-specification fitment and...

If you're restoring a classic Big Twin or Sportster, OEM-correct fittings are non-negotiable for maintaining proper fluid flow and system integrity. This COLONY line fitting delivers the exact specifications your original system demands, ensuring...

A properly secured headlight cowel is essential for maintaining aerodynamic integrity and preventing vibration-induced damage during high-performance driving. The COLONY Screw Set 3360-7 restores your cowel to OEM specifications with precision-engineered...

Designed to fit snug on 1/4", 5/16" or 3/8" bolts, Made in the U.S.A.

Designed to fit snug on 1/4", 5/16" or 3/8" bolts, Made in the U.S.A.

Designed to fit snug on 1/4", 5/16" or 3/8" bolts, Made in the U.S.A.

Designed to fit snug on 1/4", 5/16" or 3/8" bolts, Made in the U.S.A.

Precision spacers are essential for dialing in critical clearances on high-performance builds where tolerances matter. The COLONY 3/8"X1/8" spacer delivers the exact standoff distance you need for brake systems, suspension components, or drivetrain...

Proper spacing is critical in high-performance assembly work—misalignment or incorrect standoff distances compromise both structural integrity and component longevity. The COLONY Spacer SPC-015 provides precision-engineered standoff capability for...

Precision spacers are essential for achieving proper bolt tension and alignment in high-performance applications where tolerances matter. The COLONY Spacer eliminates gaps that compromise structural integrity and load distribution across critical...

Engine bay aesthetics matter, especially when you're showcasing a meticulously maintained build. These CIRO rocker box caps transform weathered, corroded fasteners into a polished focal point while protecting critical components from further oxidation...

Exposed fasteners are an eyesore on any build—and rusty bolts signal neglect, regardless of how clean the rest of your engine bay is. The CIRO Cap Flute M8 Chrome instantly covers worn or discolored bolt heads while adding a polished, professional finish...

Your engine's rocker boxes deserve better than exposed, corroded fasteners that detract from an otherwise clean build. CIRO's Peaked Rocker Box Caps transform neglected bolt heads into a finished, professional appearance while protecting hardware from...