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Auto parts section for Gaskets and sealing rings

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Gaskets and sealing rings car parts - all important information about operating method, mounting, diagnostics and service life

Seals and O-rings are elements designed to ensure the tightness of a given system. They serve to retain liquid and gas in the system and prevent the entry of air and foreign objects from the outside. They are installed at the joints of parts.

Design of seals and O-rings

Most components are made of flexible polymeric materials. However, metal or composite products can be used in units with very high operating temperatures. O-rings and seals are circle-shaped while gaskets usually have a more complex form and follow the contours of the joints which they are to be installed on. In addition, they often have holes for fasteners, which connect various components of certain assemblies.

Maintenance tips

  • Select components based on the conditions they will be used under. Some units require parts that are resistant to oil and petrol. For others, heat resistance is important. Others must withstand ultraviolet rays.
  • When installing new parts, do not use sealant unless the car manufacturer recommends it.
  • Always tighten the fasteners with the torque recommended in the technical documentation when replacing a cylinder head or oil sump gasket. Insufficient tightening may result in leaking. Too much leads to the cracking of the seal.
  • Note that seals, gaskets and O-rings are disposable. They need to be replaced every time the unit is disassembled and reassembled.
  • When installing some parts, for example engine oil seals, it is important to mount the component with the correct side. Special markings may be found on the part’s surface for this purpose. Examine them before getting to work.

Malfunction symptoms

When the cylinder head gasket burns out, smoke comes out from under the bonnet and loud, characteristic sounds can be heard. The engine may run roughly, especially while being started. Large amounts of white smoke emanate from the exhaust pipe not only when you begin driving. The coolant level in the expansion tank decreases rapidly. Sometimes, white emulsion appears on the oil dipstick, indicating that coolant has entered the lubrication system. Fuel consumption can increase while engine power decreases.

A faulty valve cover gasket or a sump plug seal can be often diagnosed by oily leaks in the area where the components are located as well as by an overall increase in lubrication consumption.

The smell of exhaust gases in the vehicle cabin is a sign of a defective exhaust manifold gasket. Sometimes, unusual sounds can be heard from the engine compartment.

Hardened door or window seals can lead to puddles forming inside the car during rain. Draughts can be felt.

Malfunction causes

These depend on the location and functions of the sealed unit. For example, defects of a cylinder head gasket frequently happen due to failures to heed the manufacturer's recommendations during the installation of the components, as well as an overheating of the engine. Streaks coming from under the valve cover are caused by constant oil exposure and deformation of the spare part, for example, due to increased pressure of crankcase gases. Exhaust system seals burn out when the motor doesn’t run properly, which causes fuel to burn out in the exhaust manifold or silencer.

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You can buy seals and O-rings at a bargain price in our online store. Thanks to a wide range of products you’ll definitely find suitable accessories. Our convenient search engine will allow you to find them in minutes. We are ready to provide a guarantee for all products, so you can be sure of the excellent quality of the parts you buy.

Top 10 of best sellers from the Oil seals section
Recommended spare parts from the Gaskets and sealing rings section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.
-26%
Gasket, exhaust manifold 13227300 buy 24/7!
AJUSA Gasket, exhaust manifold
Article number: 13227300
£ 15,84
incl. 20% VAT, Delivery
  • AJUSAGasket, exhaust manifold
  • Item number13227300
  • Manufacturer's suggested retail price£ 21,40
  • Our price £ 15,84
  • Condition  New
Details
-26%
Gasket, exhaust manifold 13211900 buy 24/7!
AJUSA Gasket, exhaust manifold
Article number: 13211900
£ 14,60
incl. 20% VAT, Delivery
  • AJUSAGasket, exhaust manifold
  • Item number13211900
  • Manufacturer's suggested retail price£ 19,73
  • Our price £ 14,60
  • Condition  New
Details
-26%
Shaft Seal, differential 539.581 buy 24/7!
ELRING Shaft Seal, differential
Article number: 539.581
£ 4,54
incl. 20% VAT, Delivery
  • Inner diameter [mm]: 40
  • Height [mm]: 10,2
  • Radial Shaft Seal Design: A/BS
  • Swirl Type: Alternating Twist
  • Material: ACM (Polyacrylate)
  • Dust Cover: with dust lip
  • Diameter [mm]: 55
  • ELRINGShaft Seal, differential
  • Item number539.581
  • Manufacturer's suggested retail price£ 6,13
  • Our price £ 4,54
  • Condition  New
Details
-26%
Gasket, exhaust pipe 256-153 buy 24/7!
BOSAL Gasket, exhaust pipe
Article number: 256-153
£ 3,05
incl. 20% VAT, Delivery
  • BOSALGasket, exhaust pipe
  • Item number256-153
  • Manufacturer's suggested retail price£ 4,12
  • Our price £ 3,05
  • Condition  New
Details
-26%
Gasket, exhaust manifold 422-003 buy 24/7!
FA1 Gasket, exhaust manifold
Article number: 422-003
£ 5,56
incl. 20% VAT, Delivery
  • FA1Gasket, exhaust manifold
  • Item number422-003
  • Manufacturer's suggested retail price£ 7,51
  • Our price £ 5,56
  • Condition  New
Details
-26%
Shaft Seal, crankshaft 19035345B buy 24/7!
CORTECO Shaft Seal, crankshaft
Article number: 19035345B
£ 15,91
incl. 20% VAT, Delivery
  • Fitting Position: Transmission End
  • Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)
  • Swirl Type: Left-hand Twist
  • Dust Cover: with dust lip
  • Height 1 [mm]: 7
  • Supplementary Article / Info 2: with mounting sleeves
  • Inner diameter 2 [mm]: 90
  • Diameter [mm]: 110
  • CORTECOShaft Seal, crankshaft
  • Item number19035345B
  • Manufacturer's suggested retail price£ 21,50
  • Our price £ 15,91
  • Condition  New
Details
-26%
Seal, oil outlet (charger) 411-501 buy 24/7!
FA1 Seal, oil outlet (charger)
Article number: 411-501
£ 0,94
incl. 20% VAT, Delivery
  • Charge Type: Exhaust Turbocharger
  • FA1Seal, oil outlet (charger)
  • Item number411-501
  • Manufacturer's suggested retail price£ 1,27
  • Our price £ 0,94
  • Condition  New
Details
-26%
Gasket, intake manifold 13159000 buy 24/7!
AJUSA Gasket, intake manifold
Article number: 13159000
£ 4,66
incl. 20% VAT, Delivery
  • Length [mm]: 460
  • Thickness [mm]: 1
  • Width [mm]: 108
  • Weight [g]: 25,561
  • AJUSAGasket, intake manifold
  • Item number13159000
  • Manufacturer's suggested retail price£ 6,30
  • Our price £ 4,66
  • Condition  New
Details
-26%
Seal, oil drain plug ADA100105 buy 24/7!
BLUE PRINT Seal, oil drain plug
Article number: ADA100105
£ 0,33
incl. 20% VAT, Delivery
  • Material: Copper
  • Inner diameter [mm]: 14,0
  • Thickness [mm]: 1,5
  • DIN / ISO: 7603 A/CU
  • Weight [kg]: 0,001
  • Diameter [mm]: 20,0
  • Supplementary Article / Info 2: for oil drain plug
  • BLUE PRINTSeal, oil drain plug
  • Item numberADA100105
  • Manufacturer's suggested retail price£ 0,45
  • Our price £ 0,33
  • Condition  New
Details
-26%
Seal Kit, injector pump 2 467 010 003 buy 24/7!
BOSCH Seal Kit, injector pump
Article number: 2 467 010 003
£ 11,19
incl. 20% VAT, Delivery
  • BOSCHSeal Kit, injector pump
  • Item number2 467 010 003
  • Manufacturer's suggested retail price£ 15,12
  • Our price £ 11,19
  • Condition  New
Details
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