ZF 0634.302.121 SHAFT SEAL
ZF Part Number: 0634.302.121 (also written as 0634302121 / 0634.302.121 / 0634 302 121)
Compatible ZF Transmission Models
This shaft seal is used in the following ZF transmission models:
- ZF 4 WG 65
- ZF 4 WG 65 II(D)
Part Location in Assembly
| Section | Position No. | Qty |
|---|---|---|
| Differential | 340 | 1 |
| Disconnection | 05.120 | 1 |
| Disconnection | 120 | 1 |
| Output | 05.260 | 1 |
| Output | 260 | 1 |
| Output | 640 | 1 |
Related Parts in Same Assembly
- 4616.101.059 — TRANSMISSION HOUSING (Qty: 1)
- 4616.101.401 — TRANSMISSION HOUSING (Qty: 1)
- 4616.102.021 — INPUT (Qty: 1)
- 4616.102.406 — INPUT (Qty: 1)
- 4616.103.048 — OUTPUT (Qty: 1)
- 4616.105.014 — OUTPUT (Qty: 1)
- 4616.106.014 — SHIFT SYSTEM (Qty: 1)
- 4616.159.018 — SHIFT SYSTEM (Qty: 1)
Frequently Asked Questions
What is ZF part number 0634.302.121?
ZF 0634.302.121 is an OEM shaft seal 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 4 WG 65, 4 WG 65 II(D). This is a genuine ZF component, not an aftermarket reproduction.
Which ZF transmissions use 0634.302.121?
This shaft seal is found in 2 ZF transmission variants, including: 4 WG 65, 4 WG 65 II(D). 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 0634.302.121 installed in the transmission?
This shaft seal is located in the output area of the transmission. It appears in 16 different assembly configurations. In the service manual, look for position number 340 in the Differential section.
How do I look up ZF part 0634.302.121?
This part can be found under several formats: 0634302121 / 0634.302.121 / 0634 302 121. 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 (0634.302.121).
When should I replace ZF 0634.302.121?
Replace this seal during every transmission overhaul or if you notice oil leakage at the seal location. Seals are wear items and should not be reused after removal.
Can I reuse ZF 0634.302.121 after disassembly?
No. ZF recommends always installing new seals during reassembly. Reusing seals may result in leaks and premature failure.
Where can I buy ZF 0634.302.121?
You can purchase genuine ZF 0634.302.121 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.
