Buy genuine Isuzu 8-98098257-5 EGR valve, an original OE part for 4HK1 diesel engines (NQR, FTR, FRR). Learn symptoms, replacement guide & OE compatibility for stable engine performance and emission compliance.
The Isuzu 8-98098257-5 EGR (Exhaust Gas Recirculation) valve is a genuine OE part for 4HK1 diesel engines, commonly installed in Isuzu NQR, FTR, and FRR trucks. Designed for heavy-duty operation, it precisely regulates exhaust gases to lower combustion temperatures and reduce NOx emissions, ensuring stable engine performance.
Function & Benefits
Recirculates exhaust gases to optimize combustion
Maintains emission compliance
Improves fuel efficiency and overall engine reliability
Common Symptoms of EGR Valve Failure
Check engine light illuminated
Rough idle or power loss under load
Black smoke from exhaust
Fault codes P0401 / P0403
Failures are often caused by carbon buildup or electronic actuator issues. Timely replacement restores proper EGR valve function and ensures emission stability.
Application & OE Details
OE Number: 8-98098-257-5
Engine: 4HK1
Models: Isuzu NQR / FTR / FRR
Type: Electronic EGR Valve
Note: Always confirm the OE number for correct fitment and ECU compatibility before replacement.