ZF 4108.303.389 SUN GEAR
ZF Part Number: 4108.303.389 (also written as 4108303389 / 4108.303.389 / 4108 303 389)
Compatible ZF Transmission Models
This sun gear is used in the following ZF transmission models:
- ZF 3 WG 100(500)
- ZF 3 WG 130
- ZF 3 WG 131
- ZF 3 WG 160
- ZF 3 WG 171
- ZF 3 WG 190
- ZF 3 WG 191
- ZF 3 WG 200
- ZF 3 WG 201
- ZF 3 WG 210
- ZF 3 WG 211
- ZF 3 WG 251
- ZF 3 WG 260
- ZF 3 WG 261
- ZF 3 WG 310
…and 19 additional models. Contact us to confirm fitment for your specific unit.
Part Location in Assembly
| Section | Position No. | Qty |
|---|---|---|
| Input | 340 | 1 |
Related Parts in Same Assembly
- 0501.309.447 — BLOW-OFF RING (Qty: 1)
- 4108.201.177 — HOUSING (Qty: 1)
- 4108.322.042 — SHAFT (Qty: 1)
- 6053.308.366 — CONTROL COVER (Qty: 1)
- 0636.010.186 — HEXAGON SCREW (Qty: 4)
- 0735.410.173 — ROLLER BEARING (Qty: 1)
- 4108.201.200 — BEARING HOUSING (Qty: 1)
- 4108.338.001 — RETAINING CLIP (Qty: 3)
Frequently Asked Questions
What is ZF part number 4108.303.389?
ZF 4108.303.389 is an OEM sun gear produced by ZF Friedrichshafen AG, one of the world’s largest automotive suppliers. It is designed for use in ZF powershift transmissions, specifically in models such as 3 WG 100(500), 3 WG 130, 3 WG 131, 3 WG 160, 3 WG 171. This is a genuine ZF component, not an aftermarket reproduction.
Which ZF transmissions use 4108.303.389?
This sun gear is found in 34 ZF transmission variants, including: 3 WG 100(500), 3 WG 130, 3 WG 131, 3 WG 160, 3 WG 171, 3 WG 190, 3 WG 191, 3 WG 200, 3 WG 201, 3 WG 210. These transmissions are commonly used in wheel loaders, graders, and other heavy construction equipment. Contact us to verify fitment for your specific machine.
Where is ZF 4108.303.389 installed in the transmission?
This sun gear is located in the input area of the transmission. It appears in 21 different assembly configurations. In the service manual, look for position number 340 in the Input section.
How do I look up ZF part 4108.303.389?
This part can be found under several formats: 4108303389 / 4108.303.389 / 4108 303 389. All formats refer to the same genuine ZF component. When ordering, any of these numbers will work. The official ZF catalog uses the dotted format (4108.303.389).
How do I inspect ZF 4108.303.389?
Inspect gear teeth for pitting, spalling, cracks, and abnormal wear patterns. Check tooth contact pattern using marking compound. Replace if damage exceeds ZF service limits.
Where can I buy ZF 4108.303.389?
You can purchase genuine ZF 4108.303.389 from PartsZF.com (operated by Tianjin Xiaohang Construction Machinery Co., Ltd). We maintain direct supply channels with ZF and offer worldwide shipping. Contact our parts specialists for current pricing and lead times.
Need this part? Contact our ZF parts specialist for pricing and availability. We ship worldwide with OEM quality guarantee.



