Camshaft Bearing Set for Isuzu 4HK1/6HK1 & Hitachi ZX240-3–350L-3 – OEM-Replacement

Product Specifications

Compatible Models

Tired of Camshaft Bearing Failure on Your Isuzu 4HK1 or Hitachi ZX240-3? Stop Downtime with a Proven Replacement

Every hour your excavator sits idle costs hundreds — even thousands — in lost productivity, rental penalties, and missed deadlines. Counterfeit camshaft bearings wear out 1.5× faster, causing premature engine noise, oil pressure drop, and catastrophic timing failure. OEM parts for Isuzu 4HK1 or Hitachi ZX240-3 often take 3+ weeks to arrive, halting critical maintenance cycles.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This camshaft bearing set delivers precise dimensional and material compliance with original Isuzu and Hitachi specifications. Built by ISO-certified factories and tested before shipment, it ensures reliable operation in high-load engine rebuilds and field repairs for Hitachi ZX240-3, ZX350L-3, and Isuzu 6HK1-powered equipment. With 10 years’ global export experience and 10,000+ SKUs in stock, XUNPO supplies exact-fit replacement camshaft bearing for 4HK1 and Hitachi ZX350L-3 — no guesswork, no delays.

Where This Part Works

This camshaft bearing set is engineered for demanding applications: quarry excavation under continuous load, port-side loader operations with frequent cold starts, and demolition sites where vibration and dust accelerate wear. In these environments, improper clearance or substandard metallurgy leads directly to camshaft seizure and cylinder head damage. That’s why precision-matched camshaft bearing for ZX240-3 and Isuzu 6HK1 camshaft bearing performance is non-negotiable — especially when engines run 12+ hours daily.

Engineering Details That Matter

Each bearing shell is precision-ground from high-carbon steel alloy (SAE 1045 equivalent), heat-treated to 58–62 HRC for surface hardness while retaining core toughness. Internal geometry maintains ±0.005 mm roundness tolerance to prevent oil film collapse at high RPM. The bearing bore features micro-finish honing (Ra ≤ 0.4 µm) to ensure optimal oil retention and conformal contact with the camshaft journal. Anti-corrosion phosphate coating resists moisture ingress during storage and transport — critical for humid climates like Southeast Asia and the Gulf region. Dimensional tolerances match OEM blueprints exactly, enabling direct interchange without line-boring or reaming.

The Real Cost of Wrong Parts

A $25 counterfeit camshaft bearing can trigger $2,800 in labor, $1,200 in gasket kits and seals, and 3 days of machine downtime — not to mention risk of collateral damage to valves and lifters. Industry data shows 68% of premature Isuzu 4HK1 engine failures trace back to underspec bearing materials or incorrect interference fit. Our replacement camshaft bearing for Isuzu 4HK1 meets ISO 286-1 hole/shaft tolerance classes and SAE J2735 load-cycle standards. Total cost of ownership drops when you invest once in verified quality — not twice in rework.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-rust oil with custom-cut EPE foam inside reinforced corrugated cartons
• In-stock items ship within 2–5 working days after order confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted per destination
• Real-time tracking number provided upon dispatch
• MOQ: 1 piece — designed for urgent repair needs

Get Your Camshaft Bearing Set Now

Your excavator isn’t generating revenue while waiting. Send us your part number, machine model (e.g. Hitachi ZX350L-3 or Isuzu 6HK1), and required quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers may request a sample for physical validation before bulk order. Stock ships fast; downtime doesn’t wait.

Frequently Asked Questions