ZF 4644.230.018 DIAPHRAGM
ZF Part Number: 4644.230.018 (also written as 4644230018 / 4644.230.018 / 4644 230 018)
Compatible ZF Transmission Models
This diaphragm is used in the following ZF transmission models:
- ZF 3 WG 100(500)
- ZF 3 WG 201
- ZF 4 WG 100(500)
- ZF 4 WG 110(500)
- ZF 4 WG 158
- ZF 4 WG 180(500)
- ZF 4 WG 200(555)
- ZF 6 WG 100(500)
- ZF 6 WG 110(500)
- ZF 6 WG 200(555)
- ZF 6 WG 201
Part Location in Assembly
| Section | Position No. | Qty |
|---|---|---|
| Engine Connection | 030 | 1 |
| Engine Connection | 070 | 1 |
Related Parts in Same Assembly
- 0501.317.160 — INDUCTIVE SENSOR (Qty: 1)
- 0750.131.053 — REPLACEMENT FILTER (Qty: 1)
- 4044.319.023 — DRIVER (Qty: 1)
- 4168.030.107 — CONVERTER (Qty: 1)
- 4642.231.127 — OIL LEVEL TUBE (Qty: 1)
- 4644.221.197 — SUCTION TUBE (Qty: 1)
- 4644.301.301 — HOUSING (Qty: 1)
- 4644.302.188 — INPUT SHAFT (Qty: 1)
Frequently Asked Questions
What is ZF part number 4644.230.018?
ZF 4644.230.018 is an OEM diaphragm 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 201, 4 WG 100(500), 4 WG 110(500), 4 WG 158. This is a genuine ZF component, not an aftermarket reproduction.
Which ZF transmissions use 4644.230.018?
This diaphragm is found in 11 ZF transmission variants, including: 3 WG 100(500), 3 WG 201, 4 WG 100(500), 4 WG 110(500), 4 WG 158, 4 WG 180(500), 4 WG 200(555), 6 WG 100(500), 6 WG 110(500), 6 WG 200(555). 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 4644.230.018 installed in the transmission?
This diaphragm is located in the engine connection area of the transmission. It appears in 23 different assembly configurations. In the service manual, look for position number 030 in the Engine Connection section.
How do I look up ZF part 4644.230.018?
This part can be found under several formats: 4644230018 / 4644.230.018 / 4644 230 018. 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 (4644.230.018).
Where can I buy ZF 4644.230.018?
You can purchase genuine ZF 4644.230.018 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.





