Harddrive Replacement Cam Chain - TC 88" Outer OEM 25610-99 — Harley-Davidson Road King, Road King Classic, Electra Glide (1999-2006)

Harddrive replacement cam chain for Twin Cam 88 V-twin engines, engineered to OEM specifications for reliable valve timing and engine longevity. Direct drop-in replacement when factory cam chain shows wear or stretch.

Features

• Heavy-duty cam chain construction
• Long-life design for Twin Cam 88 motors
• Replacement for worn factory cam chains
• Cam chain tensioners available separately

Specifications

• Brand: Harddrive
• Manufacturer Part #: 87055
• UPC: 191361228513
• Length: 3 in
• Width: 2 in
• Height: 1 in
• Weight: 0.4 lbs
• Country of Origin: Japan

Fitment

Fits V-twin motorcycles with Twin Cam 88 engines, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

How do I know if my cam chain needs replacement?

Inspect for wear and stretch during routine service. Worn chains cause rough idle, rattling at startup, and timing issues. We recommend frequent inspection to prevent engine damage.

Can I replace just the cam chain, or do I need new tensioners too?

You can replace the chain alone, but inspect your inner and outer hydraulic tensioners for wear — they wear differently based on usage and oil change frequency.

What's the difference between this and the Twin Cam 96/103 version?

This part is for Twin Cam 88 engines. We also stock replacement tensioners for Twin Cam 96 and 103 motors — confirm your engine displacement before ordering.

Is a cam chain guide available separately?

Yes — Harddrive offers a matching cam chain guide. Many shops replace the chain, tensioners, and guide as a complete kit for best results.