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{"title":"ISUZU DMAX 4JA1 T H1 GEAR TIMING 52 8979427551","imgUrl":"https:\/\/img.chinax.com\/nimg\/dc\/8f\/faca408a6e5c150d63ac2adb933f-200x200-1\/isuzu_dmax_4ja1_t_h1_gear_timing_52_8979427551.jpg","attrs":{"Model Number":"DMAX 4JA1 T H1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
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ISUZU 100P 600P NKR5 Fuel Tank Sub Unit 8-94316192-0 8943161920 OEM Fit
Product Overview
The Fuel Tank Sub Unit with OEM numbers 8-94316192-0 and 8943161920 is a verified direct-fit replacement for ISUZU 100P / 600P / NKR5 light trucks equipped with the 4JB1 diesel engine. This critical fuel delivery component houses the fuel pump, fuel level sensor, and fuel filter, responsible for delivering fuel from the tank to the engine at required pressure and providing accurate fuel level information.
Working Principle
The fuel tank sub unit is an assembly installed inside the fuel tank that integrates the fuel pump, fuel level sensor, fuel filter, and in some applications a fuel pressure regulator. The electric fuel pump draws diesel from the tank and delivers it under pressure to the engine's fuel injection system, while the fuel level sensor converts float position into electrical signals for the dashboard fuel gauge.
Failure Symptoms
Engine hard starting or no-start — failed fuel pump cannot deliver sufficient fuel pressure
Critical Inspection Note: ISUZU service manuals require that when the fuel tank sub unit is removed, all seals and gaskets must be replaced with new units. Always disconnect the battery negative terminal and relieve fuel system pressure before servicing.
Steel tank flange, plastic housing, brass terminals
Warranty
12 Months
Certification
ISO/TS 16949
Vehicle Compatibility
Brand
Model
Chassis
Engine
Years
ISUZU
ELF 100P
NKR5
4JB1
1990s–2000s
ISUZU
ELF 600P
NKR5
4JB1
1990s–2000s
ISUZU
NKR5
NKR5
4JB1
1990s–2000s
ISUZU
NKR55
NKR55
4JB1
1986–2007
ISUZU
NPR
NPR
4JB1
1986–2007
Important Fitment Notes: This unit is designed for ISUZU 100P/600P/NKR5 platform with 4JB1 engine. Confirm your exact model and tank configuration before ordering. Fuel tank configurations may vary by market and production year.
OEM-Exact Mounting Flange — Precision-matched to ISUZU fuel tank opening
High-Quality Fuel Level Sensor — Accurate fuel gauge readings across full tank range
Durable Construction — Steel flange and corrosion-resistant components for long service life
ISO/TS 16949 Quality System — Full traceability with material certificates
Quality Control
QC Item
Verification Method
Mounting Flange Dimensions
CMM, 100% inspection
Fuel Pump Flow Rate
Flow bench test, 100% inspection
Fuel Level Sensor Resistance
Ohmmeter, 100% inspection
Electrical Connector Pinout
Circuit tester, 100% inspection
Fuel Leak Test
Pressure decay test, 100% inspection
Installation Guidelines
IMPORTANT: Fuel system service must be performed by a qualified technician. Always disconnect battery negative terminal and relieve fuel system pressure.
Preparation: Disconnect battery and relieve fuel system pressure
Access: Remove rear seat/access panel or lower fuel tank
Disconnection: Disconnect electrical connector and fuel lines
Removal: Remove retaining ring or mounting bolts
Inspection: Inspect tank interior for contamination
Installation: Install new unit with new gasket
Reconnection: Reconnect fuel lines and electrical connector
Final Check: Check for leaks and verify fuel gauge operation
Maintenance Schedule
Every 10,000 km: Check for fuel leaks and verify fuel gauge operation
Every 40,000–50,000 km: Replace fuel filter and inspect tank unit
When fuel gauge malfunctions: Test fuel level sensor resistance
When hard starting occurs: Test fuel pump pressure and flow
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 ...