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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"}}
{"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 Engine Cylinder Liner with OEM numbers 5-87813392-0 / 5878133920 is a verified direct-fit replacement for ISUZU NPR, NPR71, and NQR vehicles equipped with the 4HG1 / 4HG1T diesel engine. This cylinder liner is a critical part of the engine cylinder block system, responsible for providing a wear-resistant, heat-resistant sliding surface for piston travel while maintaining precise compression sealing and heat transfer within the cylinder bore.
Verifiable Quality Assurance
Dimensional Accuracy Verified: Bore diameter 115mm, total length 180mm, liner size 115×118×180mm (ID×OD×Length) — standard OEM specifications per ISUZU 4HG1 series engine technical data.
Material & Surface Treatment: Boron alloy cast iron, dry cylinder liner, with optional chrome plating / nitriding / phosphating surface treatment — suited for 4HG1 turbocharged diesel engine conditions.
Fitment Verified: Direct fit for ISUZU NPR / NPR71 models with 4HG1 / 4HG1T engines — cross-verified against ISUZU OEM parts catalog.
OEM Cross-Reference Verified: Replaces ISUZU OEM numbers 5-87813392-0 / 5878133920; related variant numbers include 5-87813-392-0 and 587813-3920.
Quality Certification: TS16949 and ISO 9001 certified, 1-year warranty.
Data Note: This product currently lacks bench-tested installation success rate and durability data from fleet tracking. These should be supplemented after batch production testing. Industry standards referenced include GB/T 1150-2010 (Internal Combustion Engines — Wet Cast Iron Cylinder Liners) and ASTM E10 (Brinell Hardness of Metallic Materials).
Failure Symptoms
Indicating when cylinder liner replacement is needed:
Blue smoke from exhaust and excessive oil consumption — Loss of ring tension allows oil to enter the combustion chamber.
Engine overheating and compression gas entering cooling system — Liner seal failure causes combustion gas to enter the cooling system.
Cylinder wall scuffing (Scuffing) — Thermal expansion imbalance reduces operating clearance between piston and liner to zero, causing high friction and cylinder wall scoring.
Power loss and increased fuel consumption — Insufficient cylinder compression pressure reduces combustion efficiency.
Middle East, Asia, Africa, South America, North America & Europe
Package:
Neutral Packing Or Make It As Requested
Material:
High-strength aluminum alloy & precision bearings
Cooling Type:
Engine coolant circulation
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Vehicle & Engine Compatibility
Primary Applications:
Brand
Model
Engine
Years
ISUZU
NPR
4HG1 / 4HG1T
2006-2014
ISUZU
NPR71
4HG1
Same as above
ISUZU
NQR
4HG1
Same as above
Important:
Before ordering, verify that your original liner has 115mm bore diameter, 180mm total length, and 118mm outer diameter.
The 4HG1 and 4HG1T share identical liner specifications (φ115×φ118×φ123.7×180mm) and are interchangeable.
For fitment confirmation, please provide VIN number or engine nameplate photo.
Features & Benefits
Boron alloy cast iron construction
Maintains superior wear resistance and dimensional stability under high-temperature, high-pressure conditions — suited for 4HG1 turbocharged diesel engine conditions.
Chrome-plated / nitrided surface treatment
Significantly improves cylinder wall scuffing and wear resistance, extending overhaul intervals — based on industry-standard surface treatment criteria.
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 ...