Overview
The ZF 5838.300.207 LOCKING PLATE is a precision-engineered OEM genuine part designed to secure critical internal components within ZF heavy-duty transmissions. This locking plate prevents axial movement of shafts and gear assemblies, ensuring that torque is transferred efficiently without unwanted play. Specifically, it sits within the differential and axle assembly area of the transmission, locking the 5838109012: DIFFERENTIAL and related gear sets in their correct positions. The SKU 5838.300.207 is a direct replacement for the original factory part, guaranteeing a precise fit and long service life in construction machinery applications.
Symptoms of Failure
When the ZF 5838.300.207 locking plate wears or breaks, several distinct failure modes emerge. First, you may notice unusual gear rumbling or clunking during acceleration or deceleration, indicating that the differential assembly has shifted out of alignment. Second, intermittent loss of drive or wheel slip can occur, especially under heavy load, as the locking plate fails to hold the 2093209023: DIFFERENTIAL in place. Third, metal shavings in the transmission oil are a common sign of plate fatigue, as the worn edges grind against adjacent components like the 5838300626: DIFFERENTIAL HOUSING. Finally, vibration through the driveline at low speeds often points to a loose locking plate that has lost its tension.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 5838.300.207 |
| Material | High-strength alloy steel, heat-treated |
| Thickness | 4.5 mm (estimated) |
| Outer Diameter | 120 mm (estimated) |
| Weight | 0.35 kg (approx.) |
| OEM Reference | ZF 5838.300.207 |
| Surface Finish | Phosphate coated for corrosion resistance |
Compatibility
This locking plate is primarily used in ZF WG180, WG200, and WG250 series transmissions commonly found in wheel loaders, graders, and heavy dump trucks. It also fits select models of the ZF TC-Tronic and Ecolite series where a locking plate is required to secure the differential assembly. For optimal performance, always pair this part with a new 0750117075: TAPER ROLLER BEARING to ensure proper preload and alignment of the rotating assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating shafts and gears |
| 2093209023 | DIFFERENTIAL | Secondary differential for multi-axle drive |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses and protects differential gears |
| 0631329088 | SPRING PIN | Secures locking plate to shaft |
| 5838300811 | THRUST WASHER | Reduces axial friction between gears |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Transmits rotational force to wheels |
| 5838300753 | THRUST WASHER | Controls gear end-play in differential |
| 5838300818 | THRUST WASHER | Provides wear surface for rotating parts |
Frequently Asked Questions
Q: Can I reuse the old locking plate if it looks intact?
A: No. The ZF 5838.300.207 locking plate is a single-use fastener that deforms slightly during installation to create a positive lock. Reusing it risks loosening and catastrophic gear damage.
Q: How do I know if this locking plate fits my ZF WG200 transmission?
A: Check the transmission serial number and compare it to the OEM parts list. The 5838.300.207 is standard for WG200 series units built after 2010, but always verify with your transmission model tag.
Q: What tools are needed to replace this part?
A: You will need a torque wrench, a punch for the spring pin, and a bearing puller for the adjacent 0750117075: TAPER ROLLER BEARING. Professional installation is recommended to avoid misalignment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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