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Oil Cooler Assembly 8-97226391-1 8972263911 For ISUZU NKR NPR 4JB1 Engine

Basic Properties
Place of Origin: China
Brand Name: YIMI
Certification: ISO/TS16949
Model Number: ISUZU NKR Series, ISUZU NPR Series (also NK, NP model)
Trading Properties
Minimum Order Quantity: 10 pcs
Price: Negotiable
Payment Terms: T/T
Supply Ability: 10000 pcs/month
Specifications
Part Name: Oil Cooler Assembly / Engine Oil Cooler / COOLER ASM; OIL Part No: 8-97226391-1, 8972263911
Vehicle Application: ISUZU NKR Series, ISUZU NPR Series (also NK, NP Model) Engine Application: ISUZU 4JB1 (2.8L) Diesel Engine
Cooler Type: Coolant-to-Oil Heat Exchanger (Stacked Plate / Tube Design) Material: High-Strength Aluminum Alloy / Stainless Steel Core
Mounting Type: Bolt-On To Engine Block (Oil Filter Housing Area) Inlet/Outlet: Coolant And Oil Ports As Per OE Configuration
Seals Included: Gaskets / O-Rings (where Applicable) Fitment: OEM Standard, Direct Replacement
Condition: Brand New H/S Code: 841950000
High Light:

ISUZU NKR oil cooler assembly

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ISUZU NPR engine oil cooler

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4JB1 engine oil cooler part

Product Description
Oil Cooler Assembly 8-97226391-1 8972263911 For ISUZU NKR NPR 4JB1 Engine
Function: Oil cooler assembly transfers heat from engine oil to the engine coolant, maintaining optimal oil temperature and protecting engine components from excessive heat and wear in ISUZU NKR NPR 4JB1 diesel engines.
Product Overview
The Oil Cooler Assembly (OEM Numbers: 8-97226391-1 / 8972263911) is a premium-quality, direct replacement engine cooling component designed specifically for ISUZU NKR and NPR series trucks equipped with 4JB1 diesel engines. This essential heat exchanger is mounted on the engine block and uses engine coolant to dissipate heat from the engine oil, keeping oil temperatures within the optimal operating range. Proper oil temperature control is critical for maintaining oil viscosity, preventing thermal breakdown, and ensuring reliable lubrication of bearings, pistons, and other critical engine components.
Part Number8-97226391-1, 8972263911
Product NameOil Cooler Assembly / Engine Oil Cooler / COOLER ASM; OIL
Car ModelISUZU NKR Series, ISUZU NPR Series (also NK, NP model)
Engine ModelISUZU 4JB1 (2.8L) Diesel Engine
Condition100% Brand New
WeightStandard
OriginChina Mainland
Main MarketMiddle East, Asia, Africa, South America, North America & Europe
PackageNeutral Packing Or Make It As Requested
Warranty6 Months
Price & StockPlease Contact Us To Get More Information
MaterialHigh-strength aluminum alloy & precision bearings
Cooling TypeEngine coolant circulation
InstallationDirect OEM replacement
Quality StandardOEM equivalent / ISO quality control
ISUZU Oil Cooler Assembly product image showing detailed construction and components
Features & Advantages
  • OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function.
  • High-Efficiency Heat Transfer: Precision-engineered internal core maximizes heat exchange between oil and coolant.
  • Durable Construction: High-strength aluminum or stainless steel withstands high oil pressure and thermal cycling.
  • Leak-Proof Design: Precision-machined mating surfaces and quality seals prevent internal or external leaks.
  • Restores Oil Temperature Control: Eliminates oil overheating caused by clogged or inefficient coolers.
  • Protects Engine Components: Maintains proper oil viscosity and lubrication, reducing wear on bearings and pistons.
  • Prevents Coolant Contamination: Internal separation keeps oil and coolant from mixing, protecting both systems.
  • Direct Replacement: Matches OE mounting points, port locations, and connection sizes.
  • Essential for Engine Longevity: Critical component for maintaining reliable diesel engine operation.
Additional view of ISUZU oil cooler assembly showing installation details
Vehicle & Engine Compatibility
This oil cooler assembly is specifically designed for ISUZU light-duty trucks and commercial vehicles. Common applications include:
  • ISUZU NKR (Light-Duty Trucks)
  • ISUZU NPR (Medium-Duty Trucks)
  • ISUZU 4JB1 Engine Specifications:
    • 4-Cylinder, Inline Diesel
    • Displacement: 2.8L
    • Valvetrain: OHV
    • Application: Light- and medium-duty trucks
  • Also compatible with various ISUZU models using the 4JB1 engine with the same oil cooler configuration
Installation Notes
Professional mechanic installation recommended:
  1. Drain engine oil - Drain the engine oil into a suitable container.
  2. Drain coolant - Partially drain the cooling system to below the oil cooler level.
  3. Locate the oil cooler - Typically mounted on the engine block near the oil filter housing.
  4. Remove the oil filter - Remove the oil filter to access the oil cooler mounting bolts (if applicable).
  5. Disconnect coolant lines - Disconnect the coolant hoses from the oil cooler; cap the lines to prevent fluid loss.
  6. Remove mounting bolts - Unbolt the oil cooler from the engine block.
  7. Remove the old cooler - Carefully remove the old oil cooler; note the orientation and gasket arrangement.
  8. Clean mounting surface - Thoroughly clean the engine block mating surface; remove old gasket material and debris.
  9. Install new gaskets - Position new gaskets or O-rings on the new oil cooler.
  10. Install the new cooler - Position the new oil cooler on the engine block; align mounting holes.
  11. Install mounting bolts - Hand-start and tighten bolts to manufacturer torque specifications.
  12. Reconnect coolant lines - Reconnect coolant hoses to the oil cooler; secure with hose clamps.
  13. Install new oil filter - Install a new oil filter of the correct specification.
  14. Refill with engine oil - Fill with the correct grade and quantity of engine oil.
  15. Refill with coolant - Refill the cooling system with the correct coolant mixture.
  16. Bleed cooling system - Start the engine and bleed air from the cooling system per manufacturer procedure.
  17. Check for leaks - Inspect all connections for oil or coolant leaks.
  18. Check oil pressure - Verify proper oil pressure and check for warning lights.
Quality Control
  • Material Verification: Confirms housing and core materials meet ISUZU strength and corrosion resistance specifications.
  • Pressure Testing: Each unit tested for leak-proof integrity under operating oil and coolant pressures.
  • Heat Transfer Testing: Sample tested to ensure proper heat exchange efficiency.
  • Dimensional Inspection: Mounting points, port locations, and overall dimensions verified for exact fit.
  • Surface Finish Inspection: Mating surfaces checked for proper flatness and finish.
  • Visual Inspection: 100% checked for casting defects, cracks, or machining flaws.
  • Packaged Safely: Protected and packaged to prevent damage during transit.
Packaging and Delivery
  • Neutral export packing or customized packaging available
  • Carton or wooden case for safe transportation
  • Fast delivery for stock items
  • Shipping by Express Air or Sea
For pricing, availability, or bulk purchase of the Oil Cooler Assembly 8-97226391-1 8972263911 For ISUZU NKR NPR 4JB1 Engine, please contact our sales team for a competitive quote and expert technical support.