Harddrive Rear Master Cylinder Rebuild Kit - OEM 42810-07a XL 04-UP — Harley-Davidson Sportster 1200 Custom, Super Low, Nightster (2007-2013)

Harddrive rear master cylinder rebuild kit for Harley-Davidson Sportster 2004 and newer, supplied by Western Power Sports as a direct OEM replacement. Contains all seals and internal components needed to restore braking performance without replacing the entire master cylinder.

Features

• Complete internal rebuild kit with seals and springs
• Direct replacement for OEM 42810-07a
• Installs in stock master cylinder housing
• All components included for full rebuild

Specifications

• Brand: Harddrive
• Manufacturer Part #: 148202
• UPC: 191361165894
• Weight: 0.155 lbs
• Country of Origin: China (Taiwan)

Fitment

Fits Harley-Davidson Sportster models 2004 and newer with OEM rear master cylinder part number 42810-07a.

Frequently Asked Questions

What's included in this rebuild kit?

All internal seals, springs, and wear components needed to restore the factory master cylinder to like-new condition.

Do I need to replace the entire master cylinder or just rebuild it?

This kit rebuilds the existing master cylinder housing — you keep your current cylinder body and replace only the internal wear items.

Is this compatible with my 2004 Sportster?

Yes — fits all 2004-up Sportster models that use the OEM 42810-07a master cylinder.

Will this stop a slow brake fluid leak?

Yes. Worn seals are the most common cause of slow leaks. This kit replaces all internal seals to restore a tight seal.