Brake vacuum pump for automobile
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SEATInformation - Tandem pump
Brake booster vacuum pump: replacement and selection
When and why it is necessary to replace brake booster vacuum pump
The brake booster vacuum pump has no specified lifetime limit and should be replaced if the diaphragm is broken or valves lost operability. Incorrect operation of the brake vacuum pump can be suspected if more effort is needed to be applied for pressing the brake pedal, while efficiency of the brakes decreased.
Replacement of a defective vacuum pump should be performed only at a service station, as works with the brake system require high qualification. The plunger pump is replaced together with gasket.
How to select brake booster vacuum pump
According to operation principle there are impeller pumps and plunger pumps. According to drive type there are components with electric drive, belt drive from the crankshaft pulley and ones installed directly onto the camshaft. The latter are especially sensitive to oil quality.
The pumps which have drive from the crankshaft or installed directly onto the camshaft, operate constantly at turned on engine and switch off only after the engine shuts off.
The electric vacuum pump operates while ignition is turned on, that is why, on the cars, equipped with this unit, stiffness of the brake pedal does not depend on engine operation. In addition, such pump requires no supply and oil removal. Disadvantage of this component type is constant consumption of electricity, which affects speed of battery wear-out.
Road safety depends on serviceability of the braking system, that is why, buying the vacuum pump, you should give preference to manufacturers which produce high-quality components. Such companies as Pierburg, Topran, Vaico and others have proven credibility.
The vacuum pump should be selected strictly for a specific car model. This presupposes its construction, drive type, fastening type and other characteristics.
Brake vacuum pump at low cost: Top Spares
Article №: 751.830 
- Inner diameter [mm] 56
- Thickness [mm] 2,75
- Material ACM (Polyacrylate)
- Shape O-Ring
- Pump Number 4565.77, 11667556919
- Diameter [mm] 61,5
- Condition New
Article №: 7.02551.12.0 
- Operating Mode Mechanical
- Number of connectors 3
- Shape straight
- Supplementary Article/Supplementary Info with seal
- Fuel Type Diesel
- Condition New
Article №: 91147 
- Specification LUK
- Condition New
Article №: DRM0746 
- Thickness [mm] 2
- Inner diameter [mm] 53
- Condition New
Article №: V10-9731 
- Supplementary Info Original VAICO Quality
- Valve type Non-Return Valve
- Weight [kg] 0,006
- Packaging width [cm] 2,3
- Packaging height [cm] 2,3
- Packaging Depth [cm] 4,7
- Condition New
Article №: 7.22300.69.0 
- Operating Mode Mechanical
- Number of connectors 1
- Shape straight
- Supplementary Article/Info 2 with seal ring
- Technical Information Number SI 1066
- Fuel Type Diesel
- Condition New
Article №: 7.24807.17.0 
- Operating Mode Mechanical
- Number of connectors 3
- Shape straight
- Supplementary Article/Supplementary Info with seal
- Technical Information Number SI 0109-11
- Fuel Type Diesel
- Condition New
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