Information - Tensioner

All modern cars have seat belts with tensioners, which are designed to prevent movement of human relative to the driving movement in case of an accident. Belt tensioner is able to wind a segment of the belt up to 130 millimetres in 13 milliseconds. Often some people under the belt tensioner mean a retractor device for a seat belt. In most cases tensioners are installed in the seat belt buckle or on the belt retractor. There are several constructions, which differ according to the principles of action. Thus, there are rope, ball, rotor, rack and belt-type tensioners.

All the constructions differ with the drive that is either mechanical or electrical. In general, the tensioner work is provided within the system of the passive safety or independently. In the event of an accident, rear impact sensors transmit a signal to the control unit. After this the powder charge is activated, which activates the belt tensioners.

To prevent a significant load on passengers in an accident, seat belt tensioner is equipped with force limiter, which slightly reduces the load pressure.

Belt tensioner effort is limited with a loop, which is on the seat belt. If a certain force of the tension is exceeded, the joints in the loop are broken and the belt is extended. Modern constructions of the belt tension effort are limited with a torsion bar in the ignition coil. Depending on the tension effort, the torsion bar twists and, thus, reduces the load. For the purpose of his own safety in case of breakage or wear of this car part, car owner must immediately replace the tensioner with a new one. Before you will drive to the car workshop, order the required part in our online store. Whatever spare part you need – centre silencer, bellowers set or a/c wiring, we offer the prices that are far lower than in other shops.

Belt Tensioner at low cost: Top Spares

Belt Tensioner, v-ribbed belt CFFB Automatic Transmission Driven unit: alternator (FEBI BILSTEIN, 45147)
-22%
Belt Tensioner, v-ribbed belt | FEBI BILSTEIN 45147 Article №: 45147
FEBI BILSTEIN Belt Tensioner, v-ribbed belt 45147
£ 31,99
£ 24,95
incl. 20% VAT, Shipping
Over 100 items in stock
  • Width [mm] 24,0
  • Outer diameter [mm] 70,0
  • Weight [kg] 0,665
  • Observe service information
Details
Belt Tensioner, v-ribbed belt AC Driven unit: alternator (DAYCO, APV1028)
-22%
Belt Tensioner, v-ribbed belt | DAYCO APV1028 Article №: APV1028
DAYCO Belt Tensioner, v-ribbed belt APV1028
£ 26,99
£ 21,05
incl. 20% VAT, Shipping
Over 100 items in stock
  • Belt Pulley Ø [mm] 70,0
  • Height 1 [mm] 25,0
  • Height 2 [mm] 55,5
  • Weight [kg] 0,82
Details
Belt Tensioner, v-ribbed belt Driven unit: alternator (DAYCO, APV1030)
-22%
Belt Tensioner, v-ribbed belt | DAYCO APV1030 Article №: APV1030
DAYCO Belt Tensioner, v-ribbed belt APV1030
£ 25,49
£ 19,88
incl. 20% VAT, Shipping
Over 100 items in stock
  • Belt Pulley Ø [mm] 60,0
  • Height 1 [mm] 25,0
  • Height 2 [mm] 55,0
  • Weight [kg] 0,74
Details
Belt Tensioner, v-ribbed belt (TRUCKTEC AUTOMOTIVE, 07.19.087)
-22%
Belt Tensioner, v-ribbed belt | TRUCKTEC AUTOMOTIVE 07.19.087 Article №: 07.19.087
TRUCKTEC AUTOMOTIVE Belt Tensioner, v-ribbed belt 07.19.087
£ 45,49
£ 35,48
incl. 20% VAT, Shipping
Over 100 items in stock
  • for OE number 038 903 315 P
Details
Belt Tensioner, v-ribbed belt Driven unit: alternator (FEBI BILSTEIN, 09810)
-22%
Belt Tensioner, v-ribbed belt | FEBI BILSTEIN 09810 Article №: 09810
FEBI BILSTEIN Belt Tensioner, v-ribbed belt 09810
£ 36,99
£ 28,85
incl. 20% VAT, Shipping
Over 100 items in stock
  • Width [mm] 26,6
  • Outer diameter [mm] 70,0
  • Operating Mode Mechanical
  • Weight [kg] 0,934
  • Observe service information
Details
Belt Tensioner, v-ribbed belt (RIDEX, 541V0031)
-22%
Belt Tensioner, v-ribbed belt | RIDEX 541V0031 Article №: 541V0031
RIDEX Belt Tensioner, v-ribbed belt 541V0031
£ 25,49
£ 19,88
incl. 20% VAT, Shipping
Over 100 items in stock
  • Outer diameter [mm] 70
  • Width [mm] 28
Details
Belt Tensioner, v-ribbed belt TENS RF (DAYCO, APV1076)
-22%
Belt Tensioner, v-ribbed belt | DAYCO APV1076 Article №: APV1076
DAYCO Belt Tensioner, v-ribbed belt APV1076
£ 28,99
£ 22,61
incl. 20% VAT, Shipping
Over 100 items in stock
  • Belt Pulley Ø [mm] 65,0
  • Height 1 [mm] 25,5
  • Height 2 [mm] 46,5
  • Weight [kg] 0,71
Details
Belt Tensioner, v-ribbed belt ANU (FEBI BILSTEIN, 28025)
-22%
Belt Tensioner, v-ribbed belt | FEBI BILSTEIN 28025 Article №: 28025
FEBI BILSTEIN Belt Tensioner, v-ribbed belt 28025
£ 31,49
£ 24,56
incl. 20% VAT, Shipping
Over 100 items in stock
  • Width [mm] 24,0
  • Outer diameter [mm] 70,0
  • Weight [kg] 0,906
  • Observe service information
Details
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