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Expansion tank cap, Coolant expansion tank, Engine radiator 3B0121321

An OEM number is a unique code containing letters and digits. Car manufacturers use them to mark every part inside their cars. A non-original car part carrying an OEM number demonstrates that the part meets stringent car manufacturer standards and its parameters and technical specifications are identical to original equipment.

All spare parts in the list below are equivalent to OEM number 3B0 121 321:

  • 3B0 121 321 (original number of AUDI)
  • 3B0 121 321 (original number of PORSCHE)
  • 3B0 121 321 (original number of SEAT)
  • 3B0 121 321 (original number of SKODA)
  • 3B0 121 321 (original number of VW)
  • 3B0 121 321 (original number of CUPRA)
  • 3B0 121 321 (original number of MAN)
  • 3B0 121 321 (original number of DODGE)
Manufacturers
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112 items
Expansion tank cap RIDEX 3B0 121 321with gasket/seal
Article number: 56V0011
Reviews - 43
  • Pressure [bar]: 1,4
  • Pressure [psi]: 20
  • Supplementary Article / Supplementary Info: with gasket / seal
  • Material: Plastic
  • Item number: 56V0011
  • Our price: 2,99 €
  • Manufacturer: RIDEX
  • EAN number: 4059191777693
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-62%
compared to RRP 7,90 €

2,99 €
Price per item

price incl. 19% VAT

excl. delivery costs

Expansion tank cap RIDEX 3B0 121 321
Article number: 56V0002
Reviews - 29
  • Material: Plastic
  • Colour: blue
  • Mounting Type: Screw Connection
  • Thread Type: External Thread
  • External Thread [mm]: M63 x 3
  • Switch point from [bar]: 1,4
  • Switch point to [bar]: 1,6
  • Item number: 56V0002
  • Our price: 3,59 €
  • Manufacturer: RIDEX
  • EAN number: 4059191602148
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-52%
compared to RRP 7,20 €

3,59 €
Price per item

price incl. 19% VAT

excl. delivery costs

  • Supplementary Article / Supplementary Info Info 2: with sealing plug, with sensor
  • Weight [g]: 577
  • Item number: 397E0225
  • Our price: 14,99 €
  • Manufacturer: RIDEX
  • EAN number: 4065739048095
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-52%
compared to RRP 31,00 €

14,99 €

price incl. 19% VAT

excl. delivery costs

  • Supplementary Article / Supplementary Info Info 2: with sealing plug
  • Weight [g]: 490
  • Item number: 397E0196
  • Our price: 15,08 €
  • Manufacturer: RIDEX
  • EAN number: 4064138604048
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Contents of the Coolant expansion tank RIDEX set:
Description of the product
Units
Article number
Details
In stock
15,08 €
(Price per set)

price incl. 19% VAT

excl. delivery costs

  • Supplementary Article / Supplementary Info Info 2: with sensor, with cap
  • Pressure [bar]: 1,4
  • Material: Plastic
  • Item number: 397E0194
  • Our price: 15,48 €
  • Manufacturer: RIDEX
  • EAN number: 4064138603881
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Contents of the Coolant expansion tank RIDEX set:
Description of the product
Units
Article number
Details
In stock
15,48 €
(Price per set)

price incl. 19% VAT

excl. delivery costs

  • Supplementary Article / Supplementary Info Info 2: with sealing plug, with sensor
  • Weight [g]: 493
  • Material: Plastic
  • Item number: 397E0156
  • Our price: 15,99 €
  • Manufacturer: RIDEX
  • EAN number: 4064138301589
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-39%
compared to RRP 26,30 €

15,99 €

price incl. 19% VAT

excl. delivery costs

Coolant expansion tank RIDEX 3B0 121 321
Article number: 397E0221
Reviews - 5
  • Material: Plastic
  • Colour: blue
  • Mounting Type: Screw Connection
  • Item number: 397E0221
  • Our price: 16,08 €
  • Manufacturer: RIDEX
  • EAN number: 4065739032483
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Contents of the Coolant expansion tank RIDEX set:
Description of the product
Units
Article number
Details
In stock
16,08 €
(Price per set)

price incl. 19% VAT

excl. delivery costs

  • Supplementary Article / Supplementary Info Info 2: with sealing plug
  • Weight [g]: 342
  • Item number: 397E0167
  • Our price: 23,49 €
  • Manufacturer: RIDEX
  • EAN number: 4064138359771
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-48%
compared to RRP 45,00 €

23,49 €
Price per item

price incl. 19% VAT

excl. delivery costs

LTD LTD-3B0121321 LTD-3B0121321 Expansion tank cap LTD 3B0121321 AUDI
Expansion tank cap LTD 3B0 121 321Opening Pressure: 1,5bar
Article number: LTD-3B0121321
Reviews - 2
  • Colour: blue
  • Material: Plastic
  • Opening Pressure [bar]: 1,5
  • Weight [kg]: 0,064
  • Item number: LTD-3B0121321
  • Our price: 3,29 €
  • Manufacturer: LTD
  • EAN number: 5906125169002
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock
3,29 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap STARK 3B0 121 321
Article number: SKVK-1960001
Reviews - 7
  • Material: Plastic
  • Colour: blue
  • Mounting Type: Screw Connection
  • Thread Type: External Thread
  • External Thread [mm]: M63 x 3
  • Switch point from [bar]: 1,4
  • Switch point to [bar]: 1,6
  • Item number: SKVK-1960001
  • Our price: 3,59 €
  • Manufacturer: STARK
  • EAN number: 4059191602131
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-50%
compared to RRP 6,90 €

3,59 €
Price per item

price incl. 19% VAT

excl. delivery costs

Expansion tank cap Metalcaucho 3B0 121 321
Article number: 03677
Reviews - 3
  • Thickness [mm]: 32
  • Height [mm]: 32
  • Weight [kg]: 0,067
  • Pressure [bar]: 1,5
  • Colour: blue
  • Material: Plastic
  • Inner Diameter [mm]: 36,5
  • Diameter [mm]: 87
  • Thread Size 1: M3
  • Item number: 03677
  • Our price: 3,99 €
  • Manufacturer: Metalcaucho
  • EAN number: 2246648611228
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
3,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap ABAKUS 3B0 121 321
Article number: 053-027-004
Reviews - 10
  • Pressure [bar]: 1,4
  • Colour: blue
  • Assy. / disassy. by qualified personnel required!
  • Item number: 053-027-004
  • Our price: 3,99 €
  • Manufacturer: ABAKUS
  • EAN number: 224657132990941329909
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Additional information

The following information is for general and informational purposes only and does not constitute warranty terms. Warranty terms and conditions are available from our dealers and in our general terms and conditions of sale.

Abakus spare/repair parts are intended only for vehicle repairs in order to restore their original functionality. Our products are delivered without instruction of installation. Installation of our product may only be carried out by trained specialist technicians in specific car repairs. Products supplied by us are exclusively intended for proper and appropriate use. The warranty may become invalid in the event of: improper installation or repair, unsuitable application or use, installation or repair made outside specialist car workshops.

Warranty claims are lost if the vehicle is modified and used for motor sports, tuning or similar events (except our tuning parts which are described in TecDoc and on our price list).

Warranty application should include complete documentation among others: chassis no., first registration, vehicle mileage, information about LPG installation, fault memory log, pictures, our QC (quality check) code, installation invoice, contact details of the car repair workshop performing the replacement or repair. Warranty application are available in our Client Panel system.

Complaints may require supplementing data such as error memory logs. Incomplete documentation may result in rejection of the claim. Any damage caused during transport is not considered quality damage and will be considered on an individual basis.

Details
In stock
3,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap STARK 3B0 121 321with gasket/seal
Article number: SKVK-1960012
Reviews - 5
  • Pressure [bar]: 1,4
  • Pressure [psi]: 20
  • Supplementary Article / Supplementary Info: with gasket / seal
  • Material: Plastic
  • Item number: SKVK-1960012
  • Our price: 3,99 €
  • Manufacturer: STARK
  • EAN number: 4059191777686
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-50%
compared to RRP 7,50 €

3,99 €
Price per item

price incl. 19% VAT

excl. delivery costs

Expansion tank cap NTY 3B0 121 321
Article number: CCK-VW-001
Reviews - 1
  • Colour: blue
  • Fabrication Number: CCK-VW-001
  • Item number: CCK-VW-001
  • Our price: 3,99 €
  • Manufacturer: NTY
  • EAN number: 5902048891068
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
3,99 €

price incl. 19% VAT

excl. delivery costs

NRF 455601 455601 Expansion tank cap NRF 3B0.121.321 OPEL 360° 455601
Expansion tank cap NRF 3B0 121 321
Article number: 455601
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  • Item number: 455601
  • Our price: 3,99 €
  • Manufacturer: NRF
  • EAN number: 8718042437662
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
3,99 €

price incl. 19% VAT

excl. delivery costs

  • Material: Plastic
  • Colour: blue
  • Supplementary Article / Supplementary Info: with gasket / seal
  • Mounting Type: Screw Connection
  • Thread Type: External Thread
  • for OE number: 3B0 121 321
  • Item number: 111 023
  • Our price: 4,29 €
  • Manufacturer: TOPRAN
  • EAN number: 1213370000016
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Additional information

Any and all spare parts we supply are solely intended for the designated purpose as defined by us. Installation by trained personnel only. Our products are usually supplied without assembly instructions. Installation in vehicles other than those specified by us may lead to the exclusion of warranty.

Details
In stock
-50%
compared to RRP 8,43 €

4,29 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap Borsehung 3B0 121 321
Article number: B19281
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  • Item number: B19281
  • Our price: 4,29 €
  • Manufacturer: Borsehung
  • EAN number: 4251475117533
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
4,29 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap KRAFT 3B0 121 321
Article number: 1780180
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  • Production Number: K1780180
  • Item number: 1780180
  • Our price: 4,59 €
  • Manufacturer: KRAFT
  • EAN number: 1780180
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock (Item(s) left: 2)
4,59 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap AUTOMEGA 3B0 121 321
Article number: 160055610
Reviews - 1
  • Pressure [bar]: 1,4
  • Material: Plastic
  • Item number: 160055610
  • Our price: 4,99 €
  • Manufacturer: AUTOMEGA
  • EAN number: 2232390492440
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock
4,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap 3RG 3B0 121 321
Article number: 81728
Reviews - 3
  • Pressure [bar]: 1,2
  • Item number: 81728
  • Our price: 4,99 €
  • Manufacturer: 3RG
  • EAN number: 8433819049557
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock
4,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap BGA 3B0 121 321
Article number: CC3009
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  • Thread Size: M45x3
  • Pressure [bar]: 1,4
  • Item number: CC3009
  • Our price: 4,99 €
  • Manufacturer: BGA
  • EAN number: 221091110886516108865
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock (Item(s) left: 1)
4,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap VIKA 3B0 121 321
Article number: 11210308901
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  • Item number: 11210308901
  • Our price: 4,99 €
  • Manufacturer: VIKA
  • EAN number: 224346140204581402045
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
4,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap KAMOKA 3B0 121 321
Article number: 7729010
Reviews - 2
  • for OE number: 3B0 121 321
  • Item number: 7729010
  • Our price: 4,99 €
  • Manufacturer: KAMOKA
  • EAN number: 2238118263048
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock (Item(s) left: 3)
4,99 €

price incl. 19% VAT

excl. delivery costs

BOGAP A4211100 8708919000 A4211100 Expansion tank cap BOGAP 3B0121321+ AUDI
Expansion tank cap BOGAP 3B0 121 321
Article number: A4211100
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  • Length [mm]: 90
  • Width [mm]: 85
  • Height [mm]: 30
  • Weight [kg]: 0,06
  • Item number: A4211100
  • Our price: 4,99 €
  • Manufacturer: BOGAP
  • EAN number: 4251789103260
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock
4,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap FAST 3B0 121 321
Article number: FT58404
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  • Pressure [bar]: 1,5
  • Item number: FT58404
  • Our price: 4,99 €
  • Manufacturer: FAST
  • EAN number: 5904157841057
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock (Item(s) left: 1)
-23%
compared to RRP 6,35 €

4,99 €

price incl. 19% VAT

excl. delivery costs

MOTORAD T49 9704910 T49 Expansion tank cap MOTORAD 3B0 121 321 VW 360° T49
Expansion tank cap MOTORAD 3B0 121 321
Article number: T49
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  • Colour: blue
  • Pressure [bar]: 1,5
  • for OE number: 1J0121321B
  • Weight [g]: 68,7
  • Packaging length [cm]: 7,5
  • Packaging width [cm]: 7,5
  • Packaging height [cm]: 8,3
  • Item number: T49
  • Our price: 4,99 €
  • Manufacturer: MOTORAD
  • EAN number: 4037784801949
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock
4,99 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap JP GROUP 3B0 121 321
Article number: 1114800300
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  • Pressure [bar]: 1,4
  • Colour: blue
  • Item number: 1114800300
  • Our price: 5,29 €
  • Manufacturer: JP GROUP
  • EAN number: 5710412135249
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
-14%
compared to RRP 5,96 €

5,29 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap ORIGINAL IMPERIUM 3B0 121 321
Article number: 43016
Reviews - 2
  • Pressure [bar]: 1,4
  • Weight [g]: 67
  • Item number: 43016
  • Our price: 5,29 €
  • Manufacturer: ORIGINAL IMPERIUM
  • EAN number: 8033989142104
  • Condition: New
  • Reference number OEM: 3B0121321
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Details
In stock
5,29 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap STC 3B0 121 321
Article number: T403677
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  • Thickness [mm]: 32
  • Height [mm]: 32
  • Weight [kg]: 0,067
  • Pressure [bar]: 1,5
  • Colour: blue
  • Material: Plastic
  • Inner Diameter [mm]: 36,5
  • Diameter [mm]: 87
  • Thread Size 1: M3
  • Item number: T403677
  • Our price: 5,29 €
  • Manufacturer: STC
  • EAN number: 8435113923106
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock (Item(s) left: 3)
5,29 €

price incl. 19% VAT

excl. delivery costs

Expansion tank cap VIKA 3B0 121 321
Article number: 11210088401
Reviews - 8
  • Weight [kg]: 0,16
  • Switch point from [bar]: 1,4
  • Switch point to [bar]: 1,6
  • Required quantity: 1
  • Colour: blue
  • Material: Plastic
  • Item number: 11210088401
  • Our price: 5,29 €
  • Manufacturer: VIKA
  • EAN number: 2502100247562
  • Condition: New
  • Reference number OEM: 3B0121321
Show OEM numbers of the product
Details
In stock
5,29 €

price incl. 19% VAT

excl. delivery costs

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