Komatsu Part BUSHING 21T-70-73170
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Product Overview
The 21T-70-73170 BUSHING is a genuine Komatsu OEM replacement bushing from the 21T prefix series. Bushings are the replaceable wear surfaces at pivot joints throughout your machine — they provide a controlled bearing surface between the hardened steel pin and the structural housing bore, sacrificing themselves to friction so the more expensive components stay protected.
Part Number: 21T-70-73170 Part Name: BUSHING Part Type: OEM Komatsu Replacement Bushing Availability: In stock — ready to ship
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When to Replace
Replace the 21T-70-73170 when joint movement is detectable by hand — clearance has grown beyond specification; when the bore is oval or elongated from directional wear; when surface cracks, galling, or scoring are visible; when grease leaks past the bushing face; or when the pin shows any wear ridge — replace pin and bushing together.
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Installation
- Confirm 21T-70-73170 in your Komatsu catalog
- Press out old bushing — clean housing bore thoroughly
- Inspect pin — replace if worn
- Press new bushing to correct depth — align grease holes
- Lubricate before assembly and pump fresh grease after installation
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Request a Quote
Need the Komatsu 21T-70-73170 BUSHING? Contact us through the form, or by phone, email, or WhatsApp. We respond within one business day.
