ZF 0637.880.049 UNION NUT
ZF Part Number: 0637.880.049 (also written as 0637880049 / 0637.880.049 / 0637 880 049)
Compatible ZF Transmission Models
This union nut is used in the following ZF transmission models:
- ZF 4 WG 150
- ZF 4 WG 200(555/5)
- ZF 6 WG 150
- ZF 6 WG 180(500)
- ZF 6 WG 200
- ZF 6 WG 200(500)
- ZF 6 WG 200(555)
- ZF 6 WG 200(555/4)
- ZF 6 WG 201
Part Location in Assembly
| Section | Position No. | Qty |
|---|---|---|
| Filler Nozzle | 012 | 1 |
| Filler Nozzle | 150 | 1 |
| Filler Nozzle | 400 | 1 |
| Loose Parts | 012 | 1 |
| Loose Parts | 110 | 1 |
| Loose Parts | 150 | 1 |
| Oil Dipstick | 012 | 1 |
| Oil Supply | 346 | 1 |
Related Parts in Same Assembly
- 2093.206.002 — GEARSHIFT SHAFT (Qty: 1)
- 2093.298.147 — HOUSING (Qty: 1)
- 2093.301.031 — TRANSMISSION HOUSING (Qty: 1)
- 2093.303.051 — COUNTERSHAFT (Qty: 1)
- 2093.304.043 — MAIN SHAFT (Qty: 1)
- 2093.310.002 — SPUR GEAR (Qty: 1)
- 2093.314.008 — SHAFT (Qty: 1)
- 2093.322.042 — HOUSING (Qty: 1)
Frequently Asked Questions
What is ZF part number 0637.880.049?
ZF 0637.880.049 is an OEM union nut 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 150, 4 WG 200(555/5), 6 WG 150, 6 WG 180(500), 6 WG 200. This is a genuine ZF component, not an aftermarket reproduction.
Which ZF transmissions use 0637.880.049?
This union nut is found in 9 ZF transmission variants, including: 4 WG 150, 4 WG 200(555/5), 6 WG 150, 6 WG 180(500), 6 WG 200, 6 WG 200(500), 6 WG 200(555), 6 WG 200(555/4), 6 WG 201. 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 0637.880.049 installed in the transmission?
This union nut is located in the filler nozzle, loose parts, oil supply area of the transmission. It appears in 30 different assembly configurations. In the service manual, look for position number 012 in the Filler Nozzle section.
How do I look up ZF part 0637.880.049?
This part can be found under several formats: 0637880049 / 0637.880.049 / 0637 880 049. 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 (0637.880.049).
Where can I buy ZF 0637.880.049?
You can purchase genuine ZF 0637.880.049 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 0637.880.049 is located within the transmission assembly.




