The Volvo Parts, Accessories &
Performance Specialists Since 1963

Brake Booster Vacuum Switch - P2 S80 S60 V70 XC70

Genuine Volvo 31400693 - 139685

Available to Order
Backorders are typically available to ship within a few days
Item Number
Genuine Volvo
Mfr Part Number
Brand Classification
Units Per Car
One Year Parts Warranty
Country of Origin
Czech Republic
Product Group
Repair & maintenance
OE References
Genuine Volvo - 31400693, 30645457, 31265827

Product Description

These vacuum switches are a common cause of high idles and a hard brake pedal. These plastic switches can crack and separate causing a major vacuum leak in the brake booster system. 

Note: On certain P2 models there is some interchange between this vacuum switch and the 31400692 and can be used interchangeably. Only use this disclaimer if you see the other version fitting your car. This generally affects some P2 2.4T, 2.5T, early 2.3 T5 and XC70 models.

Potential Product Fitment Issues

Fitment on these brake booster check valves are quite specific on S80 6 cylinder models. If you have an S80 fitted with a six cylinder engine this valve fits: 

- 1999-2000 S80 models with engine code B6284T with chassis number 75040- and higher
- 2000 S80 models with engine code B9294S with chassis number 75040- and higher
- 2001 + S80 models fitted with a 6 cylinder engine chassis number 349395- and higher

Your chassis number can be found as the last six digits of your VIN. If you have questions on vehicle fitment contact our customer service department. 

If the website states this part fits your vehicle and is not an S80 6 cylinder model you can ignore the above statement as the part will fit. 

About Genuine Volvo

Everything IPD supplies under the "Genuine Volvo" designation are the factory original Volvo parts. These are the same quality parts that you will get in the blue Volvo branded box from a dealership. All Volvo supplied Genuine Volvo parts are made to specifications by Volvo and under their strict quality control guidelines.

Volvo relies on high-quality OEM manufactures such as Lemforder, Behr, Sachs, Bosch, Valeo, Siemens, VDO, Corteco, and many more to maintain its dedication to quality and safety.

IPD is the exclusive North American distributor for Genuine Classic Volvo parts outside of the Volvo Dealership network. We are proud of our Volvo heritage dating back to 1963, a reputation that is unmatched by others in the industry.

Many may not know this but Volvo in Latin roughly translates to "to roll".  The company was founded back in 1927 by Assar Gabrielsson and Gustaf Larsson as a spin-off from ball-bearing manufacturer SKF.  While the Volvo logo looks like the biology symbol for male, it's really the Swedish symbol for Iron. With a nod to its heritage in alloys, Volvo chose a logo that depicted a ring bisecting at one o’clock. Today Volvo is known around the world as one of the most iconic brands known for safety, longevity, and its enthusiast following.

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