When your SITRAK C7H truck demands precision shifting under extreme loads, every component inside the gearbox matters — especially the Transmission Synchronizer Cone (Parte No. 1297-304-523). Built to original Sinotruk specifications, this genuine-grade replacement ensures smooth gear engagement, reduces driver fatigue, and protects your transmission from costly damage caused by grinding or missed shifts.
Especificaciones técnicas:
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Número de parte: 1297-304-523
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Product Type: Transmission Synchronizer Cone
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Material: High-Strength Copper Alloy
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Compatibilidad: Sinotruk SITRAK C7H Heavy-Duty Trucks (all models utilizing matching transmission systems)
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Outer Diameter: 155mm
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Inner Diameter: 120mm
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Espesor: 20mm
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Peso neto: 1.2kg
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Estándar: OE (Original Equipment) Calidad, Compliant with Sinotruk Factory Specifications
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Garantía: 12-Month Manufacturer Warranty
1. TRATAMOS A CADA CLIENTE COMO NUESTRO AMIGO, PEGARSE AL PRINCIPIO: BENEFICIO MUTUO Y GANADOR ;
2. UNA VARIEDAD DE ELECCIÓN DE PRODUCTOS: CALIDAD, MARCA, EMBALAJE;
3. LE RESPONDEREMOS SU CONSULTA EN 24 HORAS.
4.Proveedor de piezas de rendimiento profesional SINOTRUCK
5. ESTAREMOS EN SERVICIO 24/24 HORAS DEL DÍA LABORAL.
6. CULO: LE OFRECEMOS EL MEJOR SERVICIO POSTVENTA.
Important Installation Guidelines – Synchronizer Cone 1297-304-523
Before installing this synchronizer cone, ensure the transmission is fully disassembled and cleaned of old lubricants or debris. Always inspect mating surfaces on the gear and hub for wear—uneven contact can lead to premature failure.
This cone is designed specifically for SITRAK C7H series heavy-duty transmissions. Do not force-fit; if resistance occurs, recheck alignment. Apply high-quality molybdenum-disulfide-based synchronizer grease (such as ZF LS-G or equivalent) during assembly to reduce friction and improve shift quality.
Replace all related worn components (keys, sleeves, muelles) at the same time to avoid imbalance. After installation, refill with OEM-recommended transmission oil (SAE 75W-90 GL-5) and perform a break-in cycle: drive gently for the first 200 km to allow proper seating.
