Oil Filter Seat 8971664970 8-97166497-0 For ISUZU 4JB1 4JB1T Diesel Engine

The Oil Filter Seat (OEM Numbers: 8971664970 / 8-97166497-0) is a premium-quality, direct replacement engine component designed specifically for ISUZU 4JB1 and 4JB1T diesel engines. This critical part provides the mounting surface and fluid passages for the oil filter assembly, ensuring proper oil filtration and circulation throughout the engine.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
• Precision-Cast Construction: High-strength aluminum alloy housing provides durability and dimensional accuracy
• Accurate Mating Surfaces: Precision-machined sealing surfaces ensure a leak-proof fit
• Proper Fluid Passage: Internal oil galleries match OE configuration for correct oil flow and filtration
• Threaded Ports: Precision-tapped threaded ports ensure secure, leak-free connections
• Direct Replacement: Matches OE seat dimensions, bolt pattern, and sealing configuration
• Long Service Life: Engineered for commercial diesel engine applications
• Cost-Effective Repair: Affordable replacement that prevents costly engine damage

This oil filter seat is specifically designed for ISUZU light-duty trucks and commercial vehicles:

• ISUZU NKR (Light-Duty Trucks)
• ISUZU NHR, NPR series (as applicable)
• ISUZU TFR (Pickup Truck)
• ISUZU D-MAX (Pickup Truck)
• ISUZU Bighorn (SUV)

Engine Specifications:

• ISUZU 4JB1 - 2.8L Inline-4 Diesel
• ISUZU 4JB1T - 2.8L Inline-4 Turbo Diesel

Professional mechanic or engine builder installation recommended:

1. Ensure engine is cool - Allow the engine to cool completely before disassembly
2. Disconnect battery - Always disconnect the negative terminal before working
3. Drain engine oil - Drain the engine oil into a suitable container
4. Remove the oil filter assembly - Unscrew or unbolt the oil filter from the oil filter seat
5. Remove the old oil filter seat - Unbolt the seat from the engine block; carefully separate it from the gasket
6. Clean all mating surfaces - Thoroughly clean the engine block and seat mating surfaces; remove all old gasket material and debris
7. Inspect the oil cooler core - Check the core for damage, corrosion, or blockage; replace if necessary
8. Install new gasket - Position a new gasket or O-ring on the engine block or seat as specified
9. Install the new oil filter seat - Position the seat on the engine block; align bolt holes
10. Install mounting bolts - Hand-start all bolts; tighten in a criss-cross pattern to manufacturer torque specifications
11. Reinstall the oil filter assembly - Install the oil filter and tighten to specification
12. Refill with engine oil - Fill with the correct grade and quantity of engine oil
13. Start and test - Start the engine; check for oil leaks around the seat and filter area
14. Check oil pressure - Verify proper oil pressure and check for warning lights
15. Road test - Test drive to verify proper engine operation and no leaks

• Material Verification: Confirms aluminum alloy composition meets ISUZU strength and durability specifications
• Dimensional Inspection: Seat dimensions, bolt hole pattern, and sealing surface flatness verified within OEM tolerances
• Surface Finish Inspection: Mating surfaces checked for proper finish to ensure leak-proof sealing
• Pressure Testing: Sample tested to ensure integrity under operating oil pressure
• Visual Inspection: 100% checked for casting defects, cracks, or machining flaws
• Packaged Safely: Protected and packaged to prevent damage during transit

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.