Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You!
Your requirement has been sent. we will contact you quickly!
{"title":"High-Pressure Injection Pipe 8-97148966-3 8971489663 For ISUZU NPR\/NQR\/NPR-HD","imgUrl":"https:\/\/img.chinax.com\/nimg\/13\/71\/29be6adc59a67bf8b74f9edc25fa-200x200-1\/high_pressure_injection_pipe_8_97148966_3_8971489663_for_isuzu_npr_2fnqr_2fnpr_hd.jpg","attrs":{"Payment Terms":"T\/T","Part Name":"PIPE; INJ NO 4 \/ Injection Pipe No.4","Material":"High-Speed Steel with Machined Exterior Finish","Vehicle Models":"ISUZU NPR, NQR, NPR-HD (1998\u20132004)"}}
{"title":"ISUZU C240 VALVE ROCKER ARM 9126113490","imgUrl":"https:\/\/img.chinax.com\/nimg\/fc\/e5\/2d0d41fb7f3d502843fd768e1e28-200x200-1\/isuzu_c240_valve_rocker_arm_9126113490.jpg","attrs":{"Model Number":"C240","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU TFR68 69 ENGINE MOUNTING R 8970391890","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/f1\/8998370f517b467e4c20c8df2ac9-200x200-1\/isuzu_tfr68_69_engine_mounting_r_8970391890.jpg","attrs":{"Model Number":"TFR68 69","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU TFR68 69 RUBBER ENG FOO L 5876101930 8970860761","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/26\/7c7f4c50909a3695c90b2db58900-200x200-1\/isuzu_tfr68_69_rubber_eng_foo_l_5876101930_8970860761.jpg","attrs":{"Model Number":"TFR68 69","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"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"}}
{"title":"ISUZU NHR 4JA1 DMAX CRANKSHAFT 8944552401","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/3f\/ae38ad12211136e0e8ec331c8536-200x200-1\/isuzu_nhr_4ja1_dmax_crankshaft_8944552401.jpg","attrs":{"Brand Name":"YIMI","Supply Ability":"10000pcs\/month","Delivery Time":"15-20 days after deposit","Packaging Details":"1, neutral box , 2, color box, 3, customer brand package"}}
{"title":"ISUZU NKR KY 4JB1 CRANKSHAFT 8944436620 1005011BBA1","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/20\/c9299ee3da59c593a2e0493b8470-200x200-1\/isuzu_nkr_ky_4jb1_crankshaft_8944436620_1005011bba1.jpg","attrs":{"Brand Name":"YIMI","Supply Ability":"10000pcs\/month","Delivery Time":"15-20 days after deposit","Packaging Details":"1, neutral box , 2, color box, 3, customer brand package"}}
The Injection Pipe No. 4 (PIPE; INJ NO 4) with OEM numbers 8-97148966-3 (also listed as 8971489663) is a verified direct-fit replacement for the #4 cylinder high-pressure fuel line on ISUZU 4HE1 4.8L diesel engines. This precision-engineered component delivers precisely metered, high-pressure diesel fuel from the injection pump to the #4 injector.
OEM Specification
Precision-engineered to exact OEM length, internal diameter, and cone seat geometry
Proven Durability
High-speed steel construction withstands extreme pressures and temperatures
Precision Fitment
Precisely bent tubing ensures proper fuel delivery routing and leak-free operation
If your injection pipe is failing, you may experience one or more of the following symptoms:
Diesel Fuel Leaks: Visible fuel seepage or wetness near the #4 injector or along the pipe
Hard Starting: Extended cranking time before the engine starts
Engine Misfire: Rough running or misfiring, especially under load
Loss of Engine Power: Significant reduction in acceleration and overall performance
Strong Diesel Fuel Odor: Noticeable fuel smell in the engine bay or cabin
Visible Damage: Cracks, corrosion, or deformation on the fuel line
⚠️ A cracked or leaking injection pipe under high pressure creates a serious fire hazard and can cause cylinder misfire — prompt replacement is essential for safety and engine performance.
Vehicle Compatibility
Brand
Model
Chassis / Series
Engine
Years
ISUZU
NPR
N-Series
4HE1 4.8L
1998-2004
ISUZU
NQR
N-Series
4HE1 4.8L
1998-2004
ISUZU
NPR-HD
N-Series
4HE1 4.8L
1998-2004
⚠️ Important: This injection pipe is specifically for the #4 cylinder on ISUZU 4HE1 engines. For #1, #2, and #3 cylinder pipes, refer to part numbers 8-97148963-4, 8-97148964-0, and 8-97148965-0 respectively.
Features & Benefits
Feature
Benefit
OEM Specification
Guarantees factory-fit quality and performance
High-Speed Steel Construction
Withstands extreme pressures and temperatures
Precision-Formed Tubing
Ensures proper fuel delivery routing and alignment
Machined Exterior Finish
Provides precise fit and reliable performance
Protective Blue Caps
Prevents contamination during storage and installation
Direct OEM Replacement
No modifications required
100% New — No Core Charge
Guarantees zero wear and full service life
Quality Control
QC Item
Verification Method
Dimensional Accuracy
Precision inspection to verify exact OEM specifications
Material Composition
High-speed steel analysis for pressure integrity
Cone Seal Integrity
100% inspection of precision-formed cone seals
Pressure Test
High-pressure testing for zero leakage
Corrosion Resistance
Material verification for fuel and environmental resistance
Final Assembly Inspection
100% visual and dimensional inspection
Installation Guidelines
⚠️ CRITICAL: Professional Installation Highly Recommended. High-pressure injection pipes operate under extreme pressure. ISUZU service manuals explicitly mandate that injection pipes must be replaced with new ones whenever removed — these are single-use components.
Pre-Installation Checklist:
Do not reuse old injection pipes — they are single-use components
Do not bend or modify injection pipes
Depressurize the fuel system before starting work
Clean the area around the injector and injection pipe connections
Installation Steps:
Depressurize the fuel system and disconnect the negative battery terminal
Remove the old injection pipe from the #4 injector and injection pump
Clean the connection surfaces thoroughly
Install the new injection pipe with correct orientation — no bending or modification allowed
Torque the pipe connections to manufacturer's specified torque settings
Proper fuel system bleeding is necessary to remove air
Start the engine and inspect for fuel leaks around the connections
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 ...