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{"title":"NPR 700P 4HK1 TURBO CHARGE 8980000311 8970786400","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/e4\/ab2ffd604bc21336062bab1561b6-200x200-1\/npr_700p_4hk1_turbo_charge_8980000311_8970786400.jpg","attrs":{"Model Number":"NPR 700P 4HK1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 4BD2 3.9L CYLINDER HEAD 8971030270","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/a8\/bc770a27bfb7fb839df3007b51a1-200x200-1\/npr_4bd2_3_9l_cylinder_head_8971030270.jpg","attrs":{"Model Number":"NPR 4BD2","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
Denso Pressure Relief Valve with 1-Year Warranty for ISUZU NPR NQR NRR FVR FVZ 4HK1 6HK1 6WF1 6WG1
Product Overview
The Common Rail Fuel Pressure Limiter (Pressure Relief Valve) with OEM numbers 095420-0190 (also listed as 0954200190, 8-97318691-0, 8973186910) is a verified OEM-grade direct replacement for a wide range of ISUZU diesel engines. Manufactured by Denso to stringent OEM specifications, this pressure limiter is a critical safety component of the common rail fuel system.
OEM Specification – Verified by Denso OEM part number 095420-0190 and cross-references
Precision Engineered – Weight verified at 126g per unit, manufactured with CE and IATF 16949 certification
Proven Durability – Manufactured under strict quality control standards with a 1-year warranty
Critical Safety Component – Protects the fuel injection system from over-pressure damage
Failure Symptoms
If your fuel pressure limiter is failing, you may experience one or more of the following symptoms:
Hard Starting / No-Start – The pressure limiter leaks internally and prevents the rail from building sufficient pressure
Engine Stalling or Hesitation Under Load – Irregular fuel pressure regulation causes performance issues
Excessive Exhaust Smoke – Black or white smoke due to incorrect rail pressure
Reduced Power or Fuel Efficiency – ECU cannot maintain optimal rail pressure
Fuel Leakage or Pressure Fluctuations – Visible fuel seepage or erratic pressure readings
Diagnostic Trouble Codes (DTCs) – Codes such as P0087 (Rail Pressure Too Low) or P0088 (Rail Pressure Too High)
⚠️ Important: A failing pressure limiter can lead to progressive power loss, engine stalling, and costly damage to the high-pressure fuel pump and injectors. Prompt replacement is essential.
Product Specifications
Part Number:
095420-0190, 0954200190, 8-97318691-0, 8973186910
Product Name:
Common Rail Fuel Pressure Limiter
Car Model:
ISUZU NPR, NQR, NRR, FVR, FVZ
Engine Model:
ISUZU 4HK1, 6HK1, 6WF1, 6WG1
Condition:
100% Brand New
Weight:
126g
Origin:
China Mainland
Quality Standard:
OEM equivalent / ISO quality control
Vehicle & Engine Compatibility
⚠️ CRITICAL: This pressure limiter is designed for ISUZU 4HK1, 6HK1, and compatible engines. Verify your engine code and chassis code before ordering.
Protects fuel rail, injectors, and high-pressure pump from over-pressure damage
High-Grade Steel Construction
Withstands extreme fuel pressures and continuous thermal cycling
126g Lightweight Design
Compact and lightweight for easy installation
CE & IATF 16949 Certified
Manufactured under strict quality control standards
1-Year Warranty
Backed by warranty for peace of mind
100% New – No Core Charge
Guarantees zero wear and full service life
Installation & Maintenance
⚠️ IMPORTANT: Professional Installation Highly Recommended. Pressure limiter replacement requires depressurization of the fuel system, extreme cleanliness, and expert knowledge of common rail systems.
Pre-Installation Checklist:
Depressurize the fuel system before starting work
Disconnect the negative battery terminal
Use clean, high-quality fuel and replace the fuel filter simultaneously
Clean the area around the pressure limiter and fuel rail to prevent contamination
Quantity Required: 1 pressure limiter per high-pressure fuel pump
Maintenance Schedule:
Inspection: Every 50,000 km / 12 months
Fuel Filter Replacement: Every 20,000-30,000 km
Replacement: Recommended at 150,000-200,000 km or immediately if failure symptoms appear
Packaging & Supply
Packaging: Each pressure limiter is securely packed in neutral box, color box, or customer brand package Pack Quantity: 1 PC Net Weight: Approx. 126g Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, construction equipment service centers, and fleet owners
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...