Yimi (Guangzhou) Automotive Parts Co, Ltd
| Payment Terms | T/T, |
| Installation | Direct OEM replacement |
| Compatible Engine | ISUZU 4HG1T |
| Delivery Time | 5-8 Work Days |
| Material | High-strength aluminum alloy & precision bearings |
| Cooling Type | Engine coolant circulation |
| Certifiion | ISO/TS16949 |
| Kit Contents | Cylinder liner, piston, piston ring set, piston pin, snap rings |
| Product Net Weight | 4.5 kg |
| Supply Ability | 10000 pcs/month |
| Quantity per package | 1 set/box |
| Part Type | Engine Overhaul Kit / Liner & Piston Assembly |
| Packaging Details | Neutral Package or as customers’ request |
| Model Number | NQR71 NPR71 4HG1T |
| Place of Origin | CHINA |
| Brand Name | YIMI |
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Product Specification
| Payment Terms | T/T, | Installation | Direct OEM replacement |
| Compatible Engine | ISUZU 4HG1T | Delivery Time | 5-8 Work Days |
| Material | High-strength aluminum alloy & precision bearings | Cooling Type | Engine coolant circulation |
| Certifiion | ISO/TS16949 | Kit Contents | Cylinder liner, piston, piston ring set, piston pin, snap rings |
| Product Net Weight | 4.5 kg | Supply Ability | 10000 pcs/month |
| Quantity per package | 1 set/box | Part Type | Engine Overhaul Kit / Liner & Piston Assembly |
| Packaging Details | Neutral Package or as customers’ request | Model Number | NQR71 NPR71 4HG1T |
| Place of Origin | CHINA | Brand Name | YIMI |
| High Light | ISO/TS16949 Certified Cylinder Liner Kit ，Compatible with ISUZU 4HG1T Engine Liner & Piston Assembly ，Brand New Engine Overhaul Kit with 1-Year Warranty | ||
The ISUZU Cylinder Liner Kit with OEM numbers 5878135721 / 5-87813572-1 is a precision-engineered replacement designed for ISUZU NQR71 and NPR71 series light/medium-duty trucks, compatible with 4HG1T diesel engines. This product is a core component kit for engine overhaul, containing cylinder liners and matching components to restore the precision fit of cylinder walls, thoroughly resolving issues such as oil consumption and power loss caused by liner wear.
The cylinder liner (also known as cylinder sleeve) is the core inner lining component of the engine cylinder block, directly cooperating with the piston and piston rings to form the combustion chamber working surface. During long-term diesel engine operation, the inner wall of the cylinder liner wears due to the reciproing motion of the piston rings, causing increased clearance between the cylinder wall and piston, leading to oil consumption, reduced compression pressure, and power loss.
The cylinder liner kit typically includes the following components:
Replacing the cylinder liner kit is one of the most critical steps in engine overhaul, effectively restoring engine power performance, reducing oil consumption, and extending engine service life.
Inspect immediately if any of these symptoms occur:
| Symptom | Probable Cause |
|---|---|
| Significantly increased oil consumption; frequent oil top-ups required | Worn cylinder liner; failed piston ring sealing; oil entering combustion chamber |
| Blue smoke from exhaust (oil burning) | Excessive cylinder liner-piston ring clearance; oil entering combustion chamber |
| Noticeable power loss; poor acceleration | Worn liner causing insufficient cylinder compression pressure |
| Hard starting, especially cold starts | Reduced cylinder sealing; compression pressure below ignition requirement |
| Increased crankcase blow-by (breather smoking) | Combustion gases leaking past liner-piston ring clearance into crankcase |
| Cylinder compression test below specifiion | Liner inner diameter worn beyond limit |
| Part Number: | 5878135721 5-87813572-1 |
| Product Name: | Intake Valve |
| Car Model: | NQR71 NPR71 |
| Engine Model: | 4HG1T |
| Condition: | 100% Brand New |
| Material: | High-strength aluminum alloy & precision bearings |
| Cooling Type: | Engine coolant circulation |
| Quality Standard: | OEM equivalent / ISO quality control |
| Product Net Weight: | Approx. 4.5 kg |
| Warranty: | 1 year |
| Brand | Model Series | Compatible Engine | Notes |
|---|---|---|---|
| ISUZU | NQR71 | 4HG1T | Medium-duty truck |
| ISUZU | NPR71 | 4HG1T | Light/medium-duty truck |
| ISUZU | NQR | 4HG1 / 4HG1T | Medium-duty truck |
| ISUZU | NPR | 4HG1 / 4HG1T | Light/medium-duty truck |
| Packaging | Neutral packaging or customized per customer request |
| Quantity per package | 1 set/box (standard shipment packaging) |
| Product Net Weight | Approx. 4.5 kg |
| Brand | IZUMI |
| Place of Origin | China |
| Minimum Order Quantity | 5 pieces |
| Delivery Time | 5–8 working days |
| Supply Capacity | 1000 sets/month |
| Payment Terms | L/C, D/A, D/P, T/T, |
| Target Customers | Truck parts wholesalers, engine overhaul shops, fleet purchasers, export traders |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2005
Total Annual:
8000000-10000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
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 ...
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