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Expansion tank cap, Radiator cap 171121321F

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 171 121 321 F:

  • 171 121 321 F (original number of AUDI)
  • 171 121 321 F (original number of VW)
  • 171 121 321 F (original number of PORSCHE)
  • 171 121 321 F (original number of SEAT)
  • 171 121 321 F (original number of SKODA)
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29 items
KRAFT Expansion tank cap 171 121 321 F
Article number: 1780306
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  • Production Number: K1780306
  • Item number: 1780306
  • Our price: 1,52 €
  • Manufacturer: KRAFT
  • EAN number: 5901159084284
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
1,52 €

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TOPRAN Expansion tank cap 171 121 321 Fwith seal
Article number: 103 643
Reviews - 4
  • Material: Plastic
  • Supplementary Article / Supplementary Info: with seal
  • Colour: blue
  • Mounting Type: Screw Connection
  • Thread Type: Internal Thread
  • Item number: 103 643
  • Our price: 1,64 €
  • Manufacturer: TOPRAN
  • EAN number: 1213230000019
  • Condition: New
  • Reference number OEM: 171121321F
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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.

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In stock
1,64 €

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Metalcaucho Expansion tank cap 171 121 321 F
Article number: 03574
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  • Height [mm]: 24
  • Weight [kg]: 0,047
  • Pressure [bar]: 1,2
  • Colour: blue
  • Material: Plastic
  • Inner Diameter [mm]: 33
  • Diameter [mm]: 58
  • Weight [g]: 47
  • Thread Size 1: M3
  • Item number: 03574
  • Our price: 2,10 €
  • Manufacturer: Metalcaucho
  • EAN number: 2246648610241
  • Condition: New
  • Reference number OEM: 171121321F
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In stock (Item(s) left: 2)
2,10 €

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AUTOMEGA Expansion tank cap 171 121 321 F
Article number: 160033710
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  • Inner Diameter [mm]: 35
  • Item number: 160033710
  • Our price: 2,18 €
  • Manufacturer: AUTOMEGA
  • EAN number: 2232390489510
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
2,18 €

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JP GROUP Expansion tank cap 171 121 321 F
Article number: 1114800600
Reviews - 1
  • Material: Plastic
  • Colour: blue
  • Item number: 1114800600
  • Our price: 2,52 €
  • Manufacturer: JP GROUP
  • EAN number: 5710412147969
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
2,52 €

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ABAKUS Expansion tank cap 171 121 321 F
Article number: 053-027-001
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  • Colour: blue
  • Pressure [bar]: 1,2
  • Item number: 053-027-001
  • Our price: 2,57 €
  • Manufacturer: ABAKUS
  • EAN number: 224657132990911329909
  • Condition: New
  • Reference number OEM: 171121321F
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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.

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In stock (Item(s) left: 1)
2,57 €

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  • Weight [kg]: 0,043
  • Opening Pressure [bar]: 1,2
  • Item number: 80753
  • Our price: 3,10 €
  • Manufacturer: 3RG
  • EAN number: 8433819048055
  • Condition: New
  • Reference number OEM: 171121321F
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In stock (Item(s) left: 6)
3,10 €

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  • Colour: blue
  • Material: Plastic
  • Opening Pressure [bar]: 1,2
  • Weight [kg]: 0,036
  • Item number: 28-0126
  • Our price: 3,19 €
  • Manufacturer: MAXGEAR
  • EAN number: 5907558566345
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
3,19 €

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DAKAtec Expansion tank cap 171 121 321 F
Article number: 3087010
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  • Trim Level: mit Innengewinde
  • Weight [g]: 40
  • Item number: 3087010
  • Our price: 3,38 €
  • Manufacturer: DAKAtec
  • EAN number: 4250745523975
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
3,38 €

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ESEN SKV Expansion tank cap 171 121 321 F
Article number: 61SKV014
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  • Pressure [bar]: 1,3
  • Material: Plastic
  • Weight [kg]: 0,04
  • Item number: 61SKV014
  • Our price: 3,59 €
  • Manufacturer: ESEN SKV
  • EAN number: 590396844243
  • Condition: New
  • Reference number OEM: 171121321F
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In stock (Item(s) left: 3)
3,59 €

price incl. 19% VAT

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  • Material: Plastic
  • Opening Pressure [bar]: 1,1
  • Weight [kg]: 0,036
  • for OE number: 443 121 321
  • Item number: 02269
  • Our price: 3,61 €
  • Manufacturer: FEBI BILSTEIN
  • EAN number: 4027816022695
  • Condition: New
  • Reference number OEM: 171121321F
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Additional information

These products are designed to be used as originally These products are designed to be used as originally intended and not modified for purpose. Please ensure the intended and not modified for purpose. Please ensure the products are installed by a competent individual. N.B. products are installed by a competent individual. N.B. products are usually supplied without fitting instructions. products are usually supplied without fitting instructions.

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In stock
3,61 €

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VAICO Expansion tank cap 171 121 321 F
Article number: V10-0018
Reviews - 1
  • Colour: blue
  • Weight [kg]: 0,089
  • Fitting Position: Main Expansion Tank
  • Packaging height [cm]: 9
  • Supplementary Info: Original VAICO Quality
  • Packaging Depth [cm]: 14,8
  • Item number: V10-0018
  • Our price: 3,68 €
  • Manufacturer: VAICO
  • EAN number: 4046001138416
  • Condition: New
  • Reference number OEM: 171121321F
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Additional information

In the warranty, we always make a distinction between wear Products supplied by us are without exception intended for parts and vehicle parts. All wear parts are subject to a the designated use. Please note that our products are usually delivered without reduced warranty period and a maximum mileage.

installation instructions. Brake components such as brake disks, brake pads, etc. Installation may only be carried out by trained specialist maximum of 1000 km (break-in period). Therefore, warranty personnel. claims for brake parts are only reviewed with an There is no guarantee for inappropriate, improper or installation invoice and a record of the wheel hub run-out unintended use.

measurement, including photos.

For brake disks and brake pads, the break-in requirements specified by the vehicle manufacturer must be observed.

When replacing brakes, the chassis components must always be checked with regard to clearance and the wheel hub with regard to wobble, and the appropriate documentation must be produced.

If the vehicle is no longer in its original condition due to tuning work such as wheel accessories and tracking plates, the entitlement to make warranty claims is lost due to third-party work. The same warranty claims are lost if the vehicle is used for motor sports or similar events.

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In stock
3,68 €

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  • Thread Type: with internal thread
  • Material: Plastic
  • Opening Pressure [bar]: 1,4
  • Item number: 2140050
  • Our price: 3,93 €
  • Manufacturer: METZGER
  • EAN number: 4250032520281
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
3,93 €

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SWAG Expansion tank cap 171 121 321 FOpening Pressure: 1,1bar
Article number: 99 90 2269
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  • Material: Plastic
  • Opening Pressure [bar]: 1,1
  • Weight [kg]: 0,036
  • for OE number: 443 121 321
  • Item number: 99 90 2269
  • Our price: 4,02 €
  • Manufacturer: SWAG
  • EAN number: 4044688022691
  • Condition: New
  • Reference number OEM: 171121321F
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Additional information

These products are designed to be used as originally These products are designed to be used as originally intended and not modified for purpose. Please ensure the intended and not modified for purpose. Please ensure the products are installed by a competent individual. N.B. products are installed by a competent individual. N.B. products are usually supplied without fitting instructions. products are usually supplied without fitting instructions.

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In stock (Item(s) left: 3)
4,02 €

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  • for OE number: 443 121 321
  • Colour: blue
  • Opening Pressure [bar]: 1,2
  • Item number: 07.40.034
  • Our price: 4,09 €
  • Manufacturer: TRUCKTEC AUTOMOTIVE
  • EAN number: 4038081275464
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
4,09 €

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STC Expansion tank cap 171 121 321 F
Article number: T403574
Reviews - 1
  • Height [mm]: 24
  • Weight [kg]: 0,047
  • Pressure [bar]: 1,2
  • Colour: blue
  • Material: Plastic
  • Inner Diameter [mm]: 33
  • Diameter [mm]: 58
  • Weight [g]: 47
  • Thread Size 1: M3
  • Item number: T403574
  • Our price: 4,59 €
  • Manufacturer: STC
  • EAN number: 8435113837632
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
4,59 €

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  • New Part
  • Opening Pressure [bar]: 1,5
  • Material: Plastic
  • Item number: 751651N
  • Our price: 5,22 €
  • Manufacturer: AKS DASIS
  • EAN number: 4044455505297
  • Condition: New
  • Reference number OEM: 171121321F
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In stock
5,22 €

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GOOM Expansion tank cap 171 121 321 F
Article number: RC-0032
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  • Pressure [bar]: 1,2
  • Item number: RC-0032
  • Our price: 39,74 €
  • Manufacturer: GOOM
  • EAN number: 8054132002540
  • Condition: New
  • Reference number OEM: 171121321F
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39,74 €

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AIC Radiator cap 171 121 321 F1,2bar
Article number: 51171
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  • Pressure [bar]: 1,2
  • Colour: blue
  • Material: Plastic
  • Item number: 51171
  • Our price: 6,47 €
  • Manufacturer: AIC
  • EAN number: 4046283511716
  • Condition: New
  • Reference number OEM: 171121321F
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Additional information

Our products are usually delivered without installation instructions. Installation may only be carried out by trained specialist technicians. Products supplied by us are exclusively intended for proper and appropriate use. The warranty is void in the event of improper, contrary to the intended purpose or unsuitable application or use.

For electronic items that leave fault memory entries, it is essential to submit fault memory logs in the event of a claim. This consequently concerns all electronic items that are detected, monitored and controlled by the engine control unit, such as sensors of all kinds (e.g. NOX sensors, ABS sensors), mass airflow sensors, airbag slip rings, headlamp levelling control units, throttle valves, lambda sensors or EGR modules.

If you encounter difficulties during a repair (troubleshooting max. 1 hr.), please contact technical support at:

Phone: 040 - 25 30 66 55 Email: service@aic-germany.de

This often avoids extensive troubleshooting that is disproportionate to normal repair times.

The following applies to complaints: The more complete the processes are submitted, the faster they can be processed.

Complete documentation includes the warranty application (incl. KBA no., chassis no., first registration, engine code, mileage), first and second installation invoice, fault memory log, guided troubleshooting and, if applicable, pictures. Incomplete documentation may result in rejection of the claim.

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In stock
6,47 €

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  • Colour: blue
  • Material: Plastic
  • Opening Pressure [bar]: 1,2
  • Weight [kg]: 0,036
  • Item number: 56V0057
  • Our price: 2,06 €
  • Manufacturer: RIDEX
  • EAN number: 4064138234320
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
2,06 €
(Price per item)

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YSPARTS Expansion tank cap 171 121 321 F
Article number: YS-YXG091
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  • Pressure [bar]: 1,4
  • Item number: YS-YXG091
  • Our price: 2,58 €
  • Manufacturer: YSPARTS
  • EAN number: 225343183237411832374
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
2,58 €

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YSPARTS Expansion tank cap 171 121 321 F
Article number: YS-YXG092
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  • Pressure [bar]: 1,2
  • Item number: YS-YXG092
  • Our price: 2,58 €
  • Manufacturer: YSPARTS
  • EAN number: 225343183237421832374
  • Condition: New
  • Reference number OEM: 171121321F
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2,58 €

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YSPARTS Expansion tank cap 171 121 321 F
Article number: YS-YXG093
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  • Pressure [bar]: 1,2
  • Item number: YS-YXG093
  • Our price: 2,58 €
  • Manufacturer: YSPARTS
  • EAN number: 225343183237431832374
  • Condition: New
  • Reference number OEM: 171121321F
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2,58 €

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PREXAparts Expansion tank cap 171 121 321 F
Article number: P131015
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  • Weight [kg]: 0,036
  • Item number: P131015
  • Our price: 3,76 €
  • Manufacturer: PREXAparts
  • EAN number: 4251162229136
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
3,76 €

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  • Colour: blue
  • Material: Plastic
  • Opening Pressure [bar]: 1,2
  • Weight [kg]: 0,036
  • Item number: SKVK-1960031
  • Our price: 4,81 €
  • Manufacturer: STARK
  • EAN number: 4064138234313
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
4,81 €
(Price per item)

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BGA Expansion tank cap 171 121 321 F
Article number: CC3036
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  • Pressure [bar]: 1,3
  • Diameter [mm]: 57,2
  • Item number: CC3036
  • Our price: 6,26 €
  • Manufacturer: BGA
  • EAN number: 221091110886541108865
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
6,26 €

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S-TEC Expansion tank cap 171 121 321 F
Article number: BL22045-SV-053
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  • Pressure [bar]: 1,2
  • Item number: BL22045-SV-053
  • Our price: 10,85 €
  • Manufacturer: S-TEC
  • EAN number: 9009381039679
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
10,85 €

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BSG Expansion tank cap 171 121 321 FOpening Pressure: 1bar
Article number: BSG 90-551-003
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  • Colour: blue
  • Material: Plastic
  • Opening Pressure [bar]: 1
  • Weight [kg] 0
  • Component Number: BSG 90-551-003
  • Item number: BSG 90-551-003
  • Our price: 18,29 €
  • Manufacturer: BSG
  • EAN number: 8719822104088
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
18,29 €

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FARE SA Expansion tank cap 171 121 321 F
Article number: TB230
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  • Height [mm]: 24
  • Weight [kg]: 0,047
  • Pressure [bar]: 1,2
  • Colour: blue
  • Material: Plastic
  • Inner Diameter [mm]: 33
  • Diameter [mm]: 58
  • Weight [g]: 47
  • Thread Size 1: M3
  • Item number: TB230
  • Our price: 63,35 €
  • Manufacturer: FARE SA
  • EAN number: 8435329557423
  • Condition: New
  • Reference number OEM: 171121321F
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Сurrently out of stock
63,35 €

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