Komatsu Part CAP 195-63-22171
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Product Overview
The 195-63-22171 CAP is a genuine Komatsu OEM replacement cap. Caps seal fill openings, ports, reservoirs, and access points on your machine — preventing fluid loss, blocking contamination ingress, and in some cases maintaining system pressure or vacuum.
Part Number: 195-63-22171 Part Name: CAP Part Type: OEM Komatsu Replacement Component Availability: In stock
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When Caps Need Replacing
Caps fail in two primary ways: the seal degrades, or the mechanical retention fails. The gasket or O-ring that creates the seal can harden, crack, or take a compression set over time, losing its ability to seal against the fill neck or port face. The threads or bayonet locking mechanism can wear, preventing the cap from being tightened securely. A cap that doesn't seal allows moisture, dirt, and air into the system — any of which can cause component damage.
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When to Replace
- Fluid or vapor leaking past the cap seal
- The gasket or O-ring is cracked, hard, or missing
- Threads are stripped, crossed, or worn — the cap won't tighten securely
- The cap body is cracked or deformed from overtightening or impact
- The pressure or vacuum relief valve (if equipped) is no longer functioning correctly
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Installation
- Confirm 195-63-22171 in your Komatsu catalog
- Clean the fill neck or port opening — remove old gasket residue and debris
- Inspect the gasket — replace separately if applicable
- Install the cap and tighten — do not overtighten; the gasket must be compressed, not crushed
- Check for leaks after the system reaches operating temperature
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Request a Quote
Need the Komatsu 195-63-22171 CAP? Contact us through the form or by phone, email, or WhatsApp. We respond within one business day.

