904/20210
  • Brand
    JCB
  • Article
    904/20210
  • Machine system
    Transmission
  • Part type
    Transmission seal
  • Machine brand
    JCB
  • Manufacturing type
    Original
  • All the features
In stock
0.00 ₺
We do not publish prices: they depend on exchange rates and change often. Click «Request price» and we will quote the current price on the day you ask.
Check the exact specifications and compatibility with your machine with our managers.
We are available Monday to Saturday, 9:00 – 18:00; closed on Sunday.
Free delivery to the carrier of your choice, or collect your order in Istanbul.
Could not find the part you need? Write to us and we will help you find an alternative or order it from the manufacturer.

Transmission oil seal 904/20210 is a genuine JCB part for the JCB machines. This seal is used in the transmission.

An oil seal seals a rotating shaft where it leaves its housing, keeping oil in and dust and water out. A metal or rubber-covered outer case holds the seal in its bore, while a spring-loaded rubber lip bears on the shaft. When the lip hardens, wears or its spring weakens, the seal starts leaking: the oil level drops and dirt getting in ruins the bearings.

Specifications


Part number904/20210
ManufacturerJCB
Production typeOriginal
Part typeTransmission seal
System / groupTransmission
Machine makeJCB

Compatibility

According to the product card, 904/20210 is an oil seal. Fit is confirmed by the part number. Other parts are in Transmission.

Fitting

Remove the old seal without scoring the bore or shaft. Clean the bore, lubricate the seal lip with the working oil or grease and drive the seal in evenly, lip towards the oil, with a flat mandrel on its outside diameter. After assembly, top up the oil and check for leaks after the first run. Where possible, the new seal is set a few millimetres away from the old seal's track rather than on it.

Specifications

  • Machine system
    Transmission
  • Part type
    Transmission seal
  • Machine brand
    JCB
  • Manufacturing type
    Original
Questions: 0
Your question:

No questions about this product.

JCB 3CX / 4CX 07/10/2026 28
JCB 3CX / 4CX Transmission: Gearboxes, Axles, Pressures and Stall Test
Section F of the JCB service manual covers the transmission of the JCB 3C, 3CX and 4CX backhoe loaders: Synchro Shuttle SS700, Powershift PS764 and PS766 gearboxes, torque converter, front and rear axles, propshafts and oil cooler. It contains technical data, gearbox operation and electrics, pressure tests, the torque converter stall test, fault finding tables and removal procedures. This is issue 9803/3290-16 of the manual; the PDF runs to 306 pages.
Useful articles 02/10/2026 56
Which gearbox and axles are fitted to your JCB 3CX/4CX
Gearbox and axle parts are matched to a specific unit. Here is which transmissions and axles are fitted to JCB 3CX and 4CX backhoe loaders and how to tell them apart. The data comes from the JCB service manual for 3C, 3CX and 4CX backhoe loaders (machines with serial numbers 960001–989999, 1327000–1349999 and 1616000–1625999).
Similar products
449/10812
Gear wheel 449/10812 JCB, aftermarket
Gear wheel 449/10812 JCB, aftermarket
In stock
0.00 ₺
459/50205
Gear wheel 459/50205 JCB, aftermarket
Gear wheel 459/50205 JCB, aftermarket
In stock
0.00 ₺
907/10000
Transmission bearing 907/10000 JCB, aftermarket
Transmission bearing 907/10000 JCB, aftermarket
In stock
0.00 ₺
907/50500
Transmission taper bearing 907/50500 JCB, aftermarket

This site uses essential cookies (session, cart, language, currency). If you click «Accept», Google Analytics and Yandex Metrica cookies are also used for visit statistics; if you click «Decline», they are not loaded. Personal data is processed under the Turkish data protection law KVKK No. 6698. Details: Privacy and cookie policy.