When your SITRAK C7H truck demands precision shifting under extreme loads, every component inside the gearbox matters — especially the Transmission Synchronizer Cone (No de pièce. 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.
Spécifications techniques:
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Numéro d'article: 1297-304-523
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Type de produit: Transmission Synchronizer Cone
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Matériel: High-Strength Copper Alloy
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Compatibilité: 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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Épaisseur: 20mm
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Poids net: 1.2kg
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la norme: OE (Original Equipment) Qualité, Compliant with Sinotruk Factory Specifications
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garantie: 12-Month Manufacturer Warranty
1. NOUS TRAITONS CHAQUE CLIENT COMME NOTRE AMI, ADHÉREZ AU PRINCIPE: AVANTAGE GAGNANT ET MUTUEL ;
2. UNE VARIÉTÉ DE CHOIX DE PRODUITS: QUALITÉ, MARQUE, EMBALLAGE;
3. NOUS VOUS RÉPONDRE À VOTRE DEMANDE EN 24 HEURES.
4.Fournisseur de pièces SINOTRUCK de performance professionnelle
5. NOUS SERONS EN SERVICE 24/24 HEURES DE LA JOURNÉE DE TRAVAIL.
6. CUL: NOUS VOUS OFFRIRONS LE MEILLEUR SERVICE APRÈS-VENTE.
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, ressorts) at the same time to avoid imbalance. Après l'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.
