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Product Specifications

Compatible Models

Tired of Camshaft Bearing Failures on Your Isuzu 4HK1 or Hitachi ZX240-3 Excavator?

Every unplanned engine shutdown costs your operation thousands per day — especially during critical excavation cycles. Counterfeit camshaft bearings wear out 1.5× faster, causing misalignment, oil pressure loss, and catastrophic engine failure. OEM replacements take 2–4 weeks to arrive, halting production while you wait.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This camshaft bearing set is manufactured in ISO-certified factories and rigorously tested before shipment to match original equipment performance. With 10 years’ experience supplying excavator engine parts globally, XUNPO ensures precise fitment for Isuzu 4HK1/6HK1 engines and Hitachi ZX240-3–ZX350L-3 excavators — supporting full engine rebuilds, scheduled maintenance, and emergency repairs without delay.

Where This Part Works

These bearings operate under high-speed rotation, heavy load, and continuous thermal cycling in construction sites, quarries, ports, and demolition projects. In Hitachi ZX240-3 and ZX350L-3 excavators, the camshaft drives valve timing critical to hydraulic pump synchronization and engine responsiveness. In Isuzu 4HK1/6HK1 powertrains, correct bearing clearance prevents oil starvation and maintains stable combustion — making part accuracy non-negotiable.

Engineering Details That Matter

Each bearing shell is machined from high-carbon steel with a hardness of HRC 58–62, ensuring resistance to galling and fatigue under sustained loads. Internal surface finish is Ra ≤ 0.4 μm for optimal oil film formation and reduced friction. Radial clearance is held to ±0.005 mm tolerance — matching OEM specs to prevent premature wear or seizure. Bearings feature phosphated coating for corrosion resistance during storage and transport. All units undergo dimensional verification and surface defect inspection prior to packaging.

The Real Cost of Wrong Parts

A $35 counterfeit bearing can trigger $2,800 in downtime, $650 in labor for reinstallation, and $1,200 in collateral damage to camshafts or cylinder heads. Industry data shows 68% of premature engine failures in Isuzu-powered excavators trace back to substandard bearing sets. True total cost of ownership (TCO) includes reliability, service life, and compatibility — not just unit price. This camshaft bearing set meets ISO 9001 and OEM dimensional standards, delivering 10,000+ hours of verified service life under field conditions.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in plastic sleeves with rust-inhibiting oil coating, then packed in rigid corrugated boxes with foam cushioning
• In-stock items ship within 2–5 working days after order confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — all with real-time tracking
• Full shipment visibility from Guangzhou warehouse to your door
• MOQ is 1 piece — designed for urgent maintenance needs

Get Your Camshaft Bearing Set Now

Your excavator shouldn’t sit idle waiting for parts. Send us your machine model (e.g., Hitachi ZX240-3), engine type (e.g., Isuzu 4HK1), and required quantity — we’ll email a competitive quote within 24 hours. First-time buyers may request a sample for validation before bulk order. Every hour saved on procurement is an hour earned back in productivity.

Frequently Asked Questions