Description
The DMH3628-CH3628 ENGINE OIL COOLER COOLANT HOSE is a specialized replacement part designed for the Holden Jackaroo, Holden Rodeo, Isuzu Bighorn, and Isuzu Rodeo models manufactured between 1989 and 2003. Specifically engineered for 2-door and 4-door variants equipped with 2.8-litre and 3.1-litre inline-4 8-valve engines, this hose ensures reliable coolant circulation to the engine oil cooler. By maintaining proper cooling of the oil system, it plays a vital role in protecting the engine from overheating and ensuring long-term durability.
🔧 Key Features
OEM Fitment
Exact compatibility with Holden Jackaroo, Holden Rodeo, Isuzu Bighorn, and Isuzu Rodeo (1989–2003).
Designed for 2.8L and 3.1L I4 8V engines.
Fits seamlessly in both 2-door and 4-door configurations.
Molded to match factory routing for straightforward installation.
Durable Construction
Made from reinforced EPDM rubber for superior resistance to heat and chemicals.
Withstands operating temperatures up to 150°C.
Flexible enough to absorb vibration and engine movement.
Resistant to cracking, swelling, and hardening over time.
Reliable Performance
Provides leak-free coolant transfer to the oil cooler.
Ensures consistent oil cooling under heavy loads.
Supports overall engine longevity and reliability.
🛠️ Installation Guide
Step-by-Step Process
Allow the engine to cool completely before starting.
Drain coolant into a container to prevent spills.
Remove the old hose by loosening clamps.
Fit the DMH3628-CH3628 hose in place, aligning with factory routing.
Secure with clamps and refill coolant.
Bleed the system to remove air pockets.
Check for leaks and test oil cooler function.
Tools required: Screwdrivers, pliers, drain pan, coolant, replacement clamps.
🚨 Signs Your Oil Cooler Hose Needs Replacement
Coolant leaks near the oil cooler or engine.
Visible cracks or bulges on the hose surface.
Soft or spongy texture when squeezed.
Engine overheating despite proper coolant levels.
Oil temperature issues caused by poor cooling circulation.
🛒 Availability
The DMH3628-CH3628 engine oil cooler coolant hose can be purchased from:
Holden and Isuzu parts distributors.
Auto parts retailers (local and online).
Specialized suppliers for Jackaroo, Rodeo, and Bighorn components.
🧊 Maintenance Tips
Inspect hoses every 12 months or 20,000 km.
Replace hoses every 4–5 years or sooner if wear is detected.
Use OEM-approved coolant to extend hose life.
Check clamps regularly for corrosion or looseness.
✅ Conclusion
The DMH3628-CH3628 ENGINE OIL COOLER COOLANT HOSE is a dependable replacement for Holden Jackaroo, Holden Rodeo, Isuzu Bighorn, and Isuzu Rodeo models (1989–2003, 2/4-door, 2.8–3.1L I4 8V engines). With its OEM fitment, durable EPDM construction, and reliable performance, it ensures proper coolant circulation to the oil cooler and stable oil temperatures. Timely replacement of worn hoses prevents leaks, overheating, and costly engine damage, keeping your vehicle running smoothly and efficiently.
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