KPMI Valve Guide - EX +0.001 Cast Iron HD EVO 1984-1999 Sportster 1986-2003 — Harley-Davidson (1984-2004)

KPMI exhaust valve guide in cast iron with +0.001 in oversize bore for Harley EVO and Sportster engines. Direct replacement for worn guides that restores proper valve sealing and reduces oil consumption.

Features

• Cast iron construction
• EX +0.001 in oversize specification
• Fits EVO big-twin and Sportster platforms

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-2131C
• Length: 5.13 in
• Width: 3.5 in
• Height: 0.8 in
• Weight: 0.09 lbs

Fitment

Fits Harley-Davidson EVO engines (1984–1999 big-twin) and Sportster models (1986–2003).

Frequently Asked Questions

What does +0.001 oversize mean?

The bore is 0.001 inch larger than stock to accommodate a slightly oversized valve stem, restoring proper clearance in a worn valve guide.

Will this fit my EVO-era Harley?

Yes — this fits all Harley EVO big-twin models 1984–1999 and Sportster models 1986–2003.

Is professional installation required?

Valve guide replacement requires removal of the cylinder head and specialized tools. Professional machine shop installation is strongly recommended.

Do I need new valves with this guide?

Not necessarily — this guide works with stock valve stems. However, if your valves are also worn, replacing them together ensures optimal sealing.