ZF 4657.371.021 IDLER
ZF Part Number: 4657.371.021 (also written as 4657371021 / 4657.371.021 / 4657 371 021)
OEM Cross Reference / Interchange Numbers
ZF 4657.371.021 (IDLER) is the original manufacturer part. The following OEM and third-party part numbers are direct cross-references:
| Brand / OEM | Part Number | Type |
|---|---|---|
| 柳工 | SP157375 | OEM Cross Ref |
If you are looking for 柳工 SP157375, the correct ZF original part number is 4657.371.021. This is a 100% genuine ZF replacement, guaranteed to be fully compatible with 柳工 equipment that uses ZF transmissions.
Compatible ZF Transmission Models
This idler is used in the following ZF transmission models:
- ZF 3 WG 190
- ZF 4 WG 190
Part Location in Assembly
| Section | Position No. | Qty |
|---|---|---|
| Clutch | 160 | 1 |
| Coupling | 160 | 1 |
Related Parts in Same Assembly
- 0501.209.719 — INDUCTIVE SENSOR (Qty: 3)
- 0501.211.384 — VALVE (Qty: 1)
- 0501.214.895 — GEAR PUMP (Qty: 1)
- 0501.333.764 — PRESSURE FILTER (Qty: 1)
- 4168.030.250 — CONVERTER (Qty: 1)
- 4642.231.127 — OIL LEVEL TUBE (Qty: 1)
- 4656.306.170 — VALVE BLOCK (Qty: 1)
- 4656.330.008 — CONVERTER BELL (Qty: 1)
Frequently Asked Questions
What is ZF part number 4657.371.021?
ZF 4657.371.021 is an OEM idler 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 190, 4 WG 190. This is a genuine ZF component, not an aftermarket reproduction.
Which ZF transmissions use 4657.371.021?
This idler is found in 2 ZF transmission variants, including: 3 WG 190, 4 WG 190. 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 4657.371.021 installed in the transmission?
This idler is located in the clutch, coupling area of the transmission. It appears in 30 different assembly configurations. In the service manual, look for position number 160 in the Clutch section.
How do I look up ZF part 4657.371.021?
This part can be found under several formats: 4657371021 / 4657.371.021 / 4657 371 021. 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 (4657.371.021).
Where can I buy ZF 4657.371.021?
You can purchase genuine ZF 4657.371.021 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.
Product Photos
Exploded View / Assembly Diagram
The diagram below shows where ZF 4657.371.021 is located within the transmission assembly.
