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

KPMI intake valve guide in cast iron with +0.001 in oversize bore for Harley EVO and Sportster engines. A direct replacement for worn guides that restore proper valve sealing and reduce oil consumption.

Features

• Cast iron construction
• Oversize +0.001 in bore
• Intake position
• Direct OEM replacement

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-2121C
• Material: Cast iron
• Length: 0.9 in
• Width: 3.5 in
• Height: 0.65 in
• Weight: 0.08 lbs

Fitment

Fits Harley EVO engines (1984-1999) and Sportster models (1986-2003).

Frequently Asked Questions

What does +0.001 oversize mean?

The bore is 0.001 inches larger than stock, allowing installation into cylinders with slightly worn valve seats. Most shops use this when refreshing top-end components.

Is this for intake or exhaust?

This is the intake guide only. Order a separate part number if you need exhaust guides.

Will this fit my 2004+ Sportster?

No — this guide is for 1984-1999 EVO and 1986-2003 Sportster models. Twin Cam and M8 engines require different part numbers.

Do I need special tools to install this?

Valve guide installation requires a press and proper alignment tooling — not a DIY job. Have a machine shop or Harley dealer handle installation.