Partie ZF authentique 1250304396 3Moyeu de synchronisation de vitesse rd4th Concessionnaire de pièces ZF robuste

Partie ZF authentique 1250304391 Synchronizer Ring for Manual Transmissions | Fournisseur de pièces OEM ZF

In the world of heavy-duty transmissions, the 3rd and 4th gear transition is the most frequently cycled range. If your gearbox is struggling to stay in gear or experiencing “notchy” shifting, the synchronizer hub is often the root cause. Le ZF 1250304396 Hub de synchronisation is the central component that holds the sliding sleeve and synchronizer rings, acting as the mechanical heart of the shifting process.

As a specialized Marchand de pièces ZF, we’ve seen the damage caused by low-quality aftermarket hubs—they often suffer from micro-cracks or spline failure under high torque. Ce véritable pièce ZF is forged from high-tensile steel and machined to zero-tolerance specifications. Choosing an authorized Fournisseur de pièces ZF ensures that the internal splines perfectly match your main shaft, preventing the vibration and wear that leads to catastrophic gearbox failure.

Spécifications techniques

• Marque: Transmissions ZF (Genuine OEM)

• Numéro de pièce: 1250304396

• Type de composant: Hub de synchronisation (3rd & 4th Speed)

• Compatibilité: Fits a wide range of ZF Ecosplit, Nouvel Ecosplit, and Midliner gearboxes.

• Matériel: Forged and Case-Hardened Alloy Steel

• Internal Splines: Precision-cut for exact main shaft fitment.

• Service Life: Engineered for over 1 million shift cycles under standard load.

Astuce d'installation simple:

1. Check for Directionality: Many ZF hubs are not symmetrical. Look for a small notch or a stamped “arrow” on one side of the 1250304396 hub. Installing it backward will cause the sliding sleeve to bind and may prevent the gearbox from engaging 4th gear entirely.

2. Inspect the Internal Splines: Before sliding the hub onto the main shaft, check the shaft splines for any “stepping” or burrs. A new hub on a damaged shaft will eventually develop play, leading to gear pop-out.

3. Pressure Plate & Ressorts: When rebuilding the hub assembly, always use new synchronizer springs and pressure plates (dogs). Reusing old, weakened springs can lead to poor synchronization even with a brand-new hub.

4. The Snap-Ring Seat: Ensure the snap ring is fully seated in its groove after the hub is pressed on. Use a brass drift to gently tap the hub to ensure it is bottomed out before locking it in place.

Emballage & Expédition

Par Express : Convient pour une commande d'échantillon ou <50 KG Rapide:3-10 jours Coût d'expédition élevé Service porte à porte
Par avion : Convient à >50 KG Rapide: 3-7 jours Inférieur au coût express Service aéroport à aéroport
Par la mer: Convient à >300 KG Service port à port à moindre coût

En tant que principal fournisseur et revendeur de pièces ZF, nous fournissons des composants d'origine pour maintenir l'intégrité et l'efficacité de votre système de boîte de vitesses. Faites confiance à notre expertise et à notre assurance qualité pour assurer le bon fonctionnement de votre boîte de vitesses ZF.