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
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L47YC-1002450
Yutong Bus Parts
| Attribute | Specification |
|---|---|
| Part Number (P/N) | L47YC-1002450 |
| Common Alternate Marking | L47YC1002450 (without hyphen) |
| Product Name | Automatic Belt Tensioner / Idler Pulley with Spring Damper |
| Brand Compatibility | Yuchai (Primary), also used on Yutong, Zhongtong, Higer, King Long bus platforms |
| Engine Series | YC6L, YC6G (National IV & V Emission Standards) |
| Material – Pulley Body | High-Quality Aluminum Alloy or Cast Iron (for heat dissipation and strength) |
| Internal Mechanism | Preloaded Spiral Spring + Hydraulic/Mechanical Damping System |
| Weight (Net) | 1.5 kg – 1.7 kg |
| Mounting Type | Bolt-on bracket with pivot shaft; fits standard FEAD layout |
| Design Function | Maintains constant multi-ribbed belt tension; absorbs torsional vibrations |
| Parameter | Detail |
|---|---|
| Belt Compatibility | 8PK Series Poly-V Belts (e.g., 8PK1690, 8PK1033, 8PK1450) |
| Tension Range | Automatically adjusts between 800–1,200 N (depending on belt length and load) |
| Damping Performance | Internal damper reduces oscillation and shock loads from engine torque fluctuations |
| Operating Temperature | -30°C to +130°C (suitable for extreme climates and prolonged operation) |
| Spring Load Life | Tested for over 1 million cycles; designed for ≥100,000 km service life |
| Rotation Direction | Typically unidirectional (clockwise loading); verify arrow marking on body during installation |
| Pulley Diameter | Approx. 85–90 mm (standard size for 8PK belt engagement) |
| Mounting Bolt Size | M10 x 1.25 or M12 x 1.75 (varies by engine model — confirm locally) |
| Alignment Requirement | Must be perfectly aligned with all other pulleys in the drive system to prevent edge wear |
| Attribute | Specification |
|---|---|
| Part Number (P/N) | L47YC-1002450 |
| Common Alternate Marking | L47YC1002450 (without hyphen) |
| Product Name | Automatic Belt Tensioner / Idler Pulley with Spring Damper |
| Brand Compatibility | Yuchai (Primary), also used on Yutong, Zhongtong, Higer, King Long bus platforms |
| Engine Series | YC6L, YC6G (National IV & V Emission Standards) |
| Material – Pulley Body | High-Quality Aluminum Alloy or Cast Iron (for heat dissipation and strength) |
| Internal Mechanism | Preloaded Spiral Spring + Hydraulic/Mechanical Damping System |
| Weight (Net) | 1.5 kg – 1.7 kg |
| Mounting Type | Bolt-on bracket with pivot shaft; fits standard FEAD layout |
| Design Function | Maintains constant multi-ribbed belt tension; absorbs torsional vibrations |
| Parameter | Detail |
|---|---|
| Belt Compatibility | 8PK Series Poly-V Belts (e.g., 8PK1690, 8PK1033, 8PK1450) |
| Tension Range | Automatically adjusts between 800–1,200 N (depending on belt length and load) |
| Damping Performance | Internal damper reduces oscillation and shock loads from engine torque fluctuations |
| Operating Temperature | -30°C to +130°C (suitable for extreme climates and prolonged operation) |
| Spring Load Life | Tested for over 1 million cycles; designed for ≥100,000 km service life |
| Rotation Direction | Typically unidirectional (clockwise loading); verify arrow marking on body during installation |
| Pulley Diameter | Approx. 85–90 mm (standard size for 8PK belt engagement) |
| Mounting Bolt Size | M10 x 1.25 or M12 x 1.75 (varies by engine model — confirm locally) |
| Alignment Requirement | Must be perfectly aligned with all other pulleys in the drive system to prevent edge wear |
