T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
VG1540030015
Sinotruk HOWO
| Attribute | Description |
|---|---|
| Part Name | Upper Connecting Rod Bearing / Connecting Rod Bush (Top Half) |
| OEM Number | VG1540030015 |
| Complementary Part | Lower half: VG1540030016 (used as matching pair) |
| Application Type | Internal combustion engine component — powertrain system |
| Engine Model | SINOTRUK WD615 Diesel Engine (including Euro II variants) |
| Position | Installed in the big end of the connecting rod, interfacing with the crankshaft journal |
| Material Composition | |
| • Backing layer: High-strength steel | |
| • Lining: Aluminum-based alloy or tri-metal composite (Cu-Pb-Sn) for low friction and high load capacity | |
| Coating Technology | Anti-friction surface with embedded micro-pores for oil retention |
| Dimensions | OEM standard size — precisely machined to fit original crankshaft journals |
| Weight (per set) | Approx. 1.3 kg (for full set across all cylinders) |
| Function | |
| • Supports rotating crankshaft under high load | |
| • Converts reciprocating piston motion into rotary output | |
| • Operates via hydrodynamic lubrication (oil film) | |
| Operating Environment | Withstands temperatures up to 180°C and pressures exceeding 100 bar |
| Condition | Brand new (OEM fresh stock or premium aftermarket) |
Name1
Name2
Always Replace in Pairs
Use VG1540030015 (upper) with VG1540030016 (lower) only.
Mixing different brands or sets can cause misalignment and failure.
Professional Installation Required
Must be performed by certified engine technicians in a clean environment.
Avoid contamination from dust, dirt, or fingerprints.
Thorough Cleaning Before Assembly
Crankshaft journals
Connecting rod bores
Oil passages
Clean:
Flush oil galleries thoroughly before reassembly.
Check Bearing Clearance
Use plastigauge or micrometer method to measure clearance.
Standard clearance: 0.02 – 0.06 mm (consult service manual).
Lubricate Properly During Installation
Apply high-pressure engine assembly lube or clean motor oil to both back and face surfaces.
Never install dry.
Torque Bolts to Specification
Tighten connecting rod bolts to manufacturer-recommended torque and angle (often stretch-controlled).
Typical range: 90–110 Nm + 90° rotation.
Use calibrated torque wrench and angle gauge.
Use Correct Engine Oil After Start-Up
Run initial break-in period with high-zinc mineral oil (ZDDP additive recommended).
Switch to normal synthetic oil after 1,000 km.
Avoid Using Damaged Bearings
Do not use if scratched, dented, or oxidized.
Keep sealed until moment of installation.
Inspect Crankshaft Condition
Check for scoring, taper, or out-of-roundness.
Regrind or polish crankshaft if necessary (may require oversized bearings).
Run-In Period Required
First 500 km should avoid sustained high loads or RPMs.
Monitor oil pressure closely.
| Attribute | Description |
|---|---|
| Part Name | Upper Connecting Rod Bearing / Connecting Rod Bush (Top Half) |
| OEM Number | VG1540030015 |
| Complementary Part | Lower half: VG1540030016 (used as matching pair) |
| Application Type | Internal combustion engine component — powertrain system |
| Engine Model | SINOTRUK WD615 Diesel Engine (including Euro II variants) |
| Position | Installed in the big end of the connecting rod, interfacing with the crankshaft journal |
| Material Composition | |
| • Backing layer: High-strength steel | |
| • Lining: Aluminum-based alloy or tri-metal composite (Cu-Pb-Sn) for low friction and high load capacity | |
| Coating Technology | Anti-friction surface with embedded micro-pores for oil retention |
| Dimensions | OEM standard size — precisely machined to fit original crankshaft journals |
| Weight (per set) | Approx. 1.3 kg (for full set across all cylinders) |
| Function | |
| • Supports rotating crankshaft under high load | |
| • Converts reciprocating piston motion into rotary output | |
| • Operates via hydrodynamic lubrication (oil film) | |
| Operating Environment | Withstands temperatures up to 180°C and pressures exceeding 100 bar |
| Condition | Brand new (OEM fresh stock or premium aftermarket) |
Name1
Name2
Always Replace in Pairs
Use VG1540030015 (upper) with VG1540030016 (lower) only.
Mixing different brands or sets can cause misalignment and failure.
Professional Installation Required
Must be performed by certified engine technicians in a clean environment.
Avoid contamination from dust, dirt, or fingerprints.
Thorough Cleaning Before Assembly
Crankshaft journals
Connecting rod bores
Oil passages
Clean:
Flush oil galleries thoroughly before reassembly.
Check Bearing Clearance
Use plastigauge or micrometer method to measure clearance.
Standard clearance: 0.02 – 0.06 mm (consult service manual).
Lubricate Properly During Installation
Apply high-pressure engine assembly lube or clean motor oil to both back and face surfaces.
Never install dry.
Torque Bolts to Specification
Tighten connecting rod bolts to manufacturer-recommended torque and angle (often stretch-controlled).
Typical range: 90–110 Nm + 90° rotation.
Use calibrated torque wrench and angle gauge.
Use Correct Engine Oil After Start-Up
Run initial break-in period with high-zinc mineral oil (ZDDP additive recommended).
Switch to normal synthetic oil after 1,000 km.
Avoid Using Damaged Bearings
Do not use if scratched, dented, or oxidized.
Keep sealed until moment of installation.
Inspect Crankshaft Condition
Check for scoring, taper, or out-of-roundness.
Regrind or polish crankshaft if necessary (may require oversized bearings).
Run-In Period Required
First 500 km should avoid sustained high loads or RPMs.
Monitor oil pressure closely.
