ISO/TS16949 Certified OEM Standard Cylinder Liner Kit for ISUZU 4HG1T Engine Overhaul
| Kit Contents: | Cylinder Liners × 4 (for 4-cylinder Engine) | Net Weight: | 4.5 Kg |
| Compatible Engine: | ISUZU 4HG1T | Installation Position: | Engine Cylinder Block |
| Material: | High-strength Aluminum Alloy & Precision Bearings | Cooling Type: | Engine Coolant Circulation |
| Quantity per package: | 1 Set/box | Minimum Order Quantity: | 5 Pieces |
| High Light: | ISO/TS16949 Certified Cylinder Liner Kit,OEM Standard Cylinder Liner Kit,4HG1T Engine Compatible Cylinder Liner Kit |
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The ISUZU Cylinder Liner Kit with OEM numbers 5878135721 / 5-87813572-1 is a precision-engineered replacement designed for ISUZU 4HG1T diesel engines, widely used in NQR71 and NPR71 series trucks. This core component kit for engine overhaul contains precision-machined cylinder liners 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 reciprocating motion of the piston rings, causing increased clearance between the cylinder wall and piston, leading to oil consumption, reduced compression pressure, and power loss.
This cylinder liner kit is designed specifically for the 4HG1T four-cylinder engine. 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.
| 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 |
| Cylinder compression test below specification | Liner inner diameter worn beyond limit |
- Product Certification: Manufactured under ISO/TS16949 automotive quality management system certification. Also CE certified.
- Brand Background: Supplied by BZLP brand with mature production systems and professional sales team.
- Product Net Weight: 4.5 kg
- HS Code: 840999100
- Compatible Engine: ISUZU 4HG1T diesel engine
- Compatible Models: ISUZU NQR71, NPR71
- Condition: Brand New — 100% quality inspected
- Warranty: 1 year
- Supply Capacity: 10000 sets/month
- Delivery Time: 5–8 working days
| Type | Number |
|---|---|
| ISUZU OEM | 5878135721 / 5-87813572-1 |
| Same Series | 5878135720 / 5-87813572-0 |
| Associated | 5878102920 / 5-87810292-0 |
| Brand Reference | YIMI |
| Brand | Model | Chassis | Engine | Notes |
|---|---|---|---|---|
| ISUZU | NQR71 | NQR71 | 4HG1T | Medium-duty truck |
| ISUZU | NPR71 | NPR71 | 4HG1T | Light/medium-duty truck |
- Number Confirmation: This product number is 5878135721 / 5-87813572-1. Same series includes 5878135720 / 5-87813572-0 and 5878102920 / 5-87810292-0. Verify the specific number on the original part before ordering.
- Kit Contents Confirmation: Kit contents may vary slightly between suppliers. Some sources indicate this product corresponds to a per-cylinder (1 cylinder) piston set assembly. Confirm included components before ordering.
- Associated Components: When replacing the cylinder liner kit, it is recommended to also replace pistons, piston rings, piston pins, connecting rod bearings, main bearings, cylinder head gasket, intake/exhaust valve stem seals and other overhaul配套 components.
- Post-Installation Break-in: After new liner kit installation, the engine requires a proper break-in (run-in) procedure — avoid high-speed and high-load operation during the initial period.
- Professional Installation: Cylinder liner kit replacement is a core engine overhaul procedure involving cylinder boring and liner pressing. Must be performed by a qualified engine repair technician.
| Item | Detail |
|---|---|
| Packaging | Neutral packaging or customized per customer request |
| Quantity per package | 1 set/box |
| Product Net Weight | 4.5 kg |
| Brand | BZLP |
| Place of Origin | China |
| Customization Options | OEM custom packaging / neutral packaging / private labeling |
| Minimum Order Quantity | 5 pieces |
| Delivery Time | 5–8 working days |
| Supply Capacity | 10000 sets/month |
| Payment Terms | T/T, Western Union |
| Warranty | 1 year |
| HS Code | 840999100 |
| Target Customers | Truck parts wholesalers, engine overhaul shops, fleet purchasers, export traders |
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