Favorites (0) Store
Call us +48 33 870 42 00

Valve seal wbk 3921640

Valve stem seal WBK 3921640 – durable sealing solution, reducing oil consumption and emissions, ideal for heavy-duty engine applications.

  • Condition: new
  • SKU: 65431
Ocena 4,8

1.30 EURNet

- +

Product description

Valve Stem Seal WBK 3921640

Product description

The WBK 3921640 valve stem seal is a high-quality component designed to seal valve guides in combustion engines. Its main function is to prevent engine oil from entering the combustion chamber while ensuring proper lubrication of the valve stems. Thanks to precise manufacturing and durable materials, the seal guarantees reliability even under demanding operating conditions. Installing this component improves engine performance, reduces oil consumption and emissions, and extends the service life of valves and the cylinder head.

Technical data

  • Part number: 3921640
  • Inner diameter: matched to the valve stem
  • Outer diameter: matched to the valve guide
  • Material: high-temperature and oil-resistant rubber compound
  • Clamping spring: steel, ensuring tightness at high speeds
  • Category: combustion engine seals

Application

The WBK 3921640 valve stem seal is used in various combustion engines found in construction, agricultural and industrial machinery. It is especially suitable for engines operating under heavy-duty conditions, where resistance to temperature, oils and pressure is required. It can be applied both in regular maintenance and in full engine overhauls.

Properties

  • Resistance to high temperatures and engine oils
  • High elasticity ensuring long-term sealing performance
  • Minimizes risk of oil leakage into the combustion chamber
  • Improves engine performance and reduces oil consumption
  • Easy installation thanks to precise dimensions
  • Extends the lifespan of valves and guides

Specification

Specification Value
name Valve seal
mark wbk
part number 3921640
condition new
inner diameter matched to valve stem
outer diameter matched to valve guide
material oil and heat resistant rubber
spring steel clamping

Reference numbers

List of reviews:

Paweł

2025-08-29

Uszczelniacz sprawdził się doskonale w mojej maszynie. Łatwy montaż i solidne wykonanie. Polecam!
Barbara

2025-07-09

Uszczelniacz działa poprawnie. Nie miałem z nim żadnych trudności podczas instalacji ani użytkowania.
Tomasz

2025-05-03

Produkt jest zgodny z opisem. Używany w maszynie budowlanej, nie zauważyłem żadnych problemów.
Dominik

2025-04-24

Uszczelniacz spełnia swoje podstawowe funkcje. Montaż był prosty, a produkt działa zgodnie z oczekiwaniami.

Write a review.

See also

Discover our wide range of products

new Gasket set góra wbk 4955229
Gaskets

Gasket set góra wbk 4955229

189.24 EURNet

- +
new Valve cover screw sealant wbk 3959799
Gaskets

Valve cover screw sealant wbk 3959799

3.78 EURNet

- +
new Cylinder head gasket Engine / Motor Deutz 1011 04178867
new Cylinder head gasket Engine / Motor Locter 1000.3/1000.4/1000.6 101305
Gaskets

Cylinder head gasket Engine / Motor Locter 1000.3/1000.4/1000.6 101305

Price set Individually

- +
new Inlet mainfold gasket wbk 3931605
Gaskets

Inlet mainfold gasket wbk 3931605

6.86 EURNet

- +
new Block cover gasket gumowa wbk 3928831
Gaskets

Block cover gasket gumowa wbk 3928831

5.91 EURNet

- +
new Inlet mainfold gasket metal wbk 04198387
Gaskets

Inlet mainfold gasket metal wbk 04198387

1.66 EURNet

- +
new Cylinder head gasket Engine / Motor JCB 444 32002608
Gaskets

Cylinder head gasket Engine / Motor JCB 444 32002608

Price set Individually

- +
new Simering Deutz 25X42X8/7 02237010
Gaskets

Simering Deutz 25X42X8/7 02237010

9.46 EURNet

- +
new Gasket set dół wbk 4955230
Gaskets

Gasket set dół wbk 4955230

184.51 EURNet

- +
new Inlet mainfold gasket Iveco 4899921
Gaskets

Inlet mainfold gasket Iveco 4899921

Price set Individually

- +
Bosch Rexroth parts catalog

Bosch Rexroth parts catalog

More

Check out our offer of hydraulic systems for the popular brand Bosch Rexroth.

Construction Machinery Service

Construction Machinery Service

More

We offer comprehensive support for both stationary and mobile repair of construction machinery.

Hydraulic Pumps and Motors Repairs

Hydraulic Pumps and Motors Repairs

More

Repair and regeneration of hydraulic components: hydraulic motors and pumps.

Combustion Engine Repairs

Combustion Engine Repairs

More

Comprehensive repairs of internal combustion engines: verification, parts replacement, repair, and performance testing.

Construction Machinery Purchase

Construction Machinery Purchase

More

Purchase of excavators, loaders, bulldozers, and dumpers in complete, incomplete, or damaged condition.

Google

Opinion 5/5

Zakupiony komplet siłowników do Liebherr 564 był w doskonałym stanie, zgodnie z opisem i przesłanymi zdjęciami. Obsługa na wysokim poziomie, bardzo profesjonalna i pomocna – rewelacja. Co więcej, w kontakcie z firmą otrzymałem osobistego opiekuna, który zajmował się sprawą od początku do końca, mogłem również liczyć na bezpłatne doradztwo przy montażu. Szkoda, że w obecnych czasach nie spotyka się zbyt wielu firm z tak profesjonalnym podejściem do klienta. Gorąco polecam.

Mateusz Lenart

Google

Opinion 5/5

Współpraca na wysokim poziomie. Firma na 6. Polecam z czystym sumieniem. Na pewno jeśli będę musiał to skorzystam jeszcze raz. Naprawa Pomp hydrauliki Koparka Terex

Kamil Przybysz

Google

Opinion 5/5

Znakomita obsługa. Przyjazny i pomocny personel. Płatność, cło i transport zostały zrealizowane szybko i profesjonalnie.

William L Park

Google

Opinion 5/5

Jestem bardzo zadowolony z naszej współpracy. Dobry zespół, dobra obsługa, dobra cena, dobre części. Dziękuję!

Tiberiu Demeter

Google

Opinion 5/5

Oryginalne części, niesamowicie szybka międzynarodowa dostawa ekspresowa i obsługa na najwyższym poziomie. W przyszłości wrócimy, aby ponownie robić interesy. Dziękuję!

Jinajon

Technical materials

Here you will find texts about construction machinery - technical advice, as well as news and events from the industry.

Repair of the Liebherr D924 Engine in the LTM 1080/1 Crane
2025-12-22

Repair of the Liebherr D924 Engine in the LTM 1080/1 Crane

See more
Renovation of the Deutz TCD2013 L06 2V Engine in the Dynapac SD135C Asphalt Paver
2025-12-08

Renovation of the Deutz TCD2013 L06 2V Engine in the Dynapac SD135C Asphalt Paver

See more
Comprehensive Repair of Cummins QSB6.7 Engine in Terex TC 240LC Excavator
2025-12-05

Comprehensive Repair of Cummins QSB6.7 Engine in Terex TC 240LC Excavator

See more
Rebuilding the Liebherr D926 TI-E A4 Engine in the LR 1400 Crawler Crane
2025-12-02

Rebuilding the Liebherr D926 TI-E A4 Engine in the LR 1400 Crawler Crane

See more
Rebuilding the Cummins QSB4.5 Engine in the JLG G12-55A Loader
2025-11-28

Rebuilding the Cummins QSB4.5 Engine in the JLG G12-55A Loader

See more
Repair of Deutz TCD2013 L06 2V Engine in Dynapac F121C Asphalt Paver
2025-11-27

Repair of Deutz TCD2013 L06 2V Engine in Dynapac F121C Asphalt Paver

See more
Directions
load
Cookie preferences
We use cookies to provide essential website functionality and improve your online experience. You can choose for each category whether you want to accept or reject it at any time.
Essential cookies
Preference cookies
Analytical cookies
Marketing cookies
Uncategorized cookies

Detailed information on how we handle cookies can be found in our Privacy Policy

Consent granted on:
Consent ID: