ZF TRANSMISSIONS 1246302073 INPUT SHAFT 27T – Precision-Cut Transmission Shaft for ZF Gearboxes

ZF TRANSMISSIONS 1246302073 INPUT SHAFT 27T – Precision-Cut Transmission Shaft for ZF Gearboxes

‌Product Overview‌

The ZF TRANSMISSIONS 1246302073 INPUT SHAFT 27T is a mission-critical drivetrain component engineered for ZF heavy-duty transmissions. This 27-tooth input shaft features induction-hardened gear teeth (HRC 58-62) and precision-ground bearing journals (±0.005mm tolerance) for flawless power transfer in ZF Ecomat and AS Tronic gearboxes. Manufactured from 20MnCr5 case-hardened steel, it meets exact OEM specifications for durability in commercial vehicle applications.

Key Features:
✔ OEM-Identical Quality – Direct replacement for ZF 1246302073
✔ Premium Metallurgy – 20MnCr5 steel with carburized surface
✔ Precision Machining – DIN 6 gear quality (AGMA 12)
✔ Wear Resistance – 0.8-1.2mm case depth (HRC 58-62)
✔ Application-Specific – For ZF 6/9/12-speed transmissions

Technical Specifications:

• Part Number: 1246302073
• Type: Input shaft with 27 teeth
• Material: 20MnCr5 (DIN EN 10084)
• Core Hardness: 28-32 HRC
• Surface Hardness: 58-62 HRC
• Tooth Module: 4.5mm
• Pressure Angle: 20°
• Total Length: 428.5mm (±0.1)
• Spline Spec: SAE J498 36T
• Runout Tolerance: ≤0.03mm TIR
• OEM Reference: ZF 1246302073

Professional Installation Guide:

Pre-Installation:

1. Verify clutch alignment (max 0.1mm runout)
2. Clean splines with brass brush
3. Inspect mating gears for wear patterns

Installation Tools:

• Bearing heater (for interference fits)
• Dial indicator with magnetic base
• Torque wrench (100-300Nm range)

Step-by-Step Process:

1. Heat pilot bearing to 80°C
2. Install shaft using alignment tool ZF B4700
3. Torque mounting flange to 280Nm ±5%
4. Check gear mesh pattern with Prussian blue

Post-Installation:

1. Verify endplay (0.05-0.10mm)
2. Perform break-in procedure:
   • 500km at ≤75% load
   • 1000km at ≤90% load

Packaging & Shipping

By Express :     Suitable for sample order or <50 KG        Fast:3-10 days       High shipping cost         Door to door service
By Air :   Suitable for >50 KG         Fast: 3-7 days       Lower than express cost         Airport to airport service
By Sea:   Suitable for >300 KG     Lower cost port to port service

As a leading supplier and dealer of ZF parts, we provide genuine components to maintain the integrity and efficiency of your gearbox system. Trust in our expertise and quality assurance to keep your ZF gearbox running smoothly.