ZF Part 1238 304 383 – High-Performance Synchronizer Cone for ZF Gearbox

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  • In-stock availability for urgent repairs.
  • Free technical guidance on installation and compatibility‌
  • ‌P/N:1238 304 383

ZF Part 1238 304 383 – High-Performance Synchronizer Cone for ZF Gearbox


Product Overview

The ZF Part 1238 304 383 Synchronizer Cone is a precision-engineered component designed for ZF transmissions, ensuring smooth gear engagement and enhanced durability. This high-quality ZF gearbox part is essential for maintaining optimal performance in commercial and heavy-duty vehicles. As a trusted ZF parts dealer & supplier, we provide genuine OEM-quality replacements to ensure seamless gear shifting and extended transmission life. Key Features: ✔ OEM-Compatible – Exact match for ZF gearbox specifications
✔ Premium Material – High-strength alloy for wear resistance
✔ Smooth Synchronization – Reduces gear grinding and shift effort
✔ Reliable Fitment – Direct replacement for effortless installation

Technical Specifications:

• Part Number: 1238 304 383

• Type: Synchronizer Cone

• Compatibility: ZF Manual Transmissions

• Material: High-grade steel/brass composite

• Application: Heavy-duty trucks, buses, and industrial machinery

Simple Install Tip: For best results, clean the gearbox hub and mating surfaces before installation. Apply a thin layer of transmission grease to the cone’s friction surface to ensure smooth synchronization. Torque bolts to manufacturer specifications.


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.

‌Installation Tips

Surface prep: Degrease with ZF Cliclean 3 solvent; Gasket application: Use Loctite 518 in continuous 1.5mm bead;; Alignment: Install using factory alignment pins (ZF tool B40 5003 recommended);; Torque sequence:Initial: 12Nm star pattern—–Final: 28Nm + 90° angle torque;;;; Post-install: Pressure test at 2.5 bar before fluid fill

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