ZF 0634.306.525 O-RING
ZF Part Number: 0634.306.525 (also written as 0634306525 / 0634.306.525 / 0634 306 525)
OEM Cross Reference / Interchange Numbers
ZF 0634.306.525 (O-RING) is the original manufacturer part. The following OEM and third-party part numbers are direct cross-references:
| Brand / OEM | Part Number | Type |
|---|---|---|
| 山东临工 | 7200001443 | OEM Cross Ref |
| 柳工 | SP100500 | OEM Cross Ref |
This ZF part (0634.306.525) directly replaces the following OEM numbers: 山东临工: 7200001443; 柳工: SP100500. All listed cross-reference numbers are confirmed compatible with ZF 0634.306.525.
Compatible ZF Transmission Models
This o-ring is used in the following ZF transmission models:
- ZF 3 WG 200
- ZF 4 WG 180
- ZF 4 WG 200(555)
- ZF 4 WG 200(555/3)
- ZF 4 WG 200(555/5)
- ZF 6 WG 200(555)
- ZF 6 WG 200(555/4)
- ZF 6 WG 200(555/5)
Part Location in Assembly
| Section | Position No. | Qty |
|---|---|---|
| Transmission Housing | 01.320 | 1 |
| Transmission Housing | 300/020 | 1 |
| Transmission Housing | 316/020 | 1 |
| Transmission Housing | 320 | 1 |
Related Parts in Same Assembly
- 0750.131.053 — REPLACEMENT FILTER (Qty: 1)
- 4168.030.105 — CONVERTER (Qty: 1)
- 4642.307.005 — SPEEDO CONN.PCE (Qty: 1)
- 4644.221.196 — SUCTION TUBE (Qty: 1)
- 4644.231.023 — OIL LEVEL TUBE (Qty: 1)
- 4644.301.226 — TRANSMISSION HOUSING (Qty: 1)
- 4644.302.229 — INPUT SHAFT (Qty: 1)
- 4644.303.239 — OUTPUT SHAFT (Qty: 1)
Supersessions
0634.306.525 → 963430652501
Frequently Asked Questions
What is ZF part number 0634.306.525?
ZF 0634.306.525 is an OEM o-ring 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 200, 4 WG 180, 4 WG 200(555), 4 WG 200(555/3), 4 WG 200(555/5). This is a genuine ZF component, not an aftermarket reproduction.
Which ZF transmissions use 0634.306.525?
This o-ring is found in 8 ZF transmission variants, including: 3 WG 200, 4 WG 180, 4 WG 200(555), 4 WG 200(555/3), 4 WG 200(555/5), 6 WG 200(555), 6 WG 200(555/4), 6 WG 200(555/5). 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 0634.306.525 installed in the transmission?
This o-ring is located in the transmission housing area of the transmission. It appears in 30 different assembly configurations. In the service manual, look for position number 01.320 in the Transmission Housing section.
How do I look up ZF part 0634.306.525?
This part can be found under several formats: 0634306525 / 0634.306.525 / 0634 306 525. 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 (0634.306.525).
When should I replace ZF 0634.306.525?
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 0634.306.525 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 0634.306.525?
You can purchase genuine ZF 0634.306.525 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.
Exploded View / Assembly Diagram
The diagram below shows where ZF 0634.306.525 is located within the transmission assembly.
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