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Shop By Brand

The Following brands are available based on your search.

  • CSF Radiator
    CSF Radiator
  • Febi
    Febi
  • Gates
    Gates
  • Genuine
    Genuine
  • Motorad
    Motorad
  • Vaico
    Vaico

Shop By Related Radiator Cap Parts

Shop below for all Radiator Cap related parts for your Audi

Radiator Cap
Radiator Cap
Radiator Cap Adapter
Radiator Cap Adapter
Radiator Cap Tester Adapter
Radiator Cap Tester Adapter

Shop for Top Selling Genuine Audi S8 Radiator Caps

  • We Stock the following top leading brands, including Genuine, Febi, Vaico, Gates, Motorad, CSF Radiator
  • Constantly Updated Inventory of Audi S8 Replacement Radiator Cap Parts

We also have Radiator Cap parts for other Audi models, including 100 Quattro, 100 Series, 200 Quattro, 4000 Quattro, 5000 Quattro, 80 Quattro, 90 Quattro, A3, A3 Quattro, A3 Sportback etron, A4, A4 Quattro, A4 allroad, A5, A5 Quattro, A6, A6 Quattro, A6 allroad, A7 Quattro, A7 Sportback, A8, A8 Quattro, Allroad Quattro, Cabriolet, Coupe, Coupe Quattro, Fox, Q3, Q3 Quattro, Q5, Q7, Q8, Quattro, RS Q8, RS4, RS5, RS5 Sportback, RS7, S3, S4, S5, S5 Sportback, S6, S7, S7 Sportback, S8, SQ5, SQ5 Sportback, SQ7, SQ8, Super 90, TT Quattro, V8 Quattro, 80, 90, 100, 200, 4000, 5000.


Genuine
2021 Audi S4 Radiator Cap Genuine

P311-44B4B8A    W0133-4291485  New

Qty:
In Stock & Ready to Ship
$65.09
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Location-Reservoir
Brand: Genuine
Additional Fitment Information:
Vehicle
2021 - Audi S4
Febi
2008 Audi S8 Radiator Cap Febi

P311-3AD7F2A    40723  New

8E0 121 321

Qty:
In Stock & Ready to Ship
$10.81
  • Radiator Cap for coolant expansion bottle
  • Length 1 (mm): 87 Height or Thickness 1 (mm): 40 Colour: blue
  • Product Attributes:
    • Colour: Blue
    • Filler Neck Height: 40.0
    • Opening Pressure: 1.5
    • Opening Pressure (Bar): 1.5
Brand: Febi
Additional Fitment Information:
Vehicle Engine Designation
2008 - Audi S8 BSM
Vaico
2004 Audi S4 Radiator Cap Vaico - VAICO

P311-51BCAD3    V10-0491  New

1002380003 , 31529 , 40723 , 603098 , 740041 , 8E0 121 321 , 8E0121321 , V100491

Qty:
In Stock & Ready to Ship
$11.99
Vaico Radiator Cap
  • Grade: Aftermarket Location-Expansion Tank
  • VAICO
  • Product Attributes:
    • Packaging Depth [cm]: 13
    • Packaging height [cm]: 13,2
    • Weight [kg]: 0,2729
Brand: Vaico
Additional Fitment Information:
Vehicle Submodel
2004 - Audi S4 Avant
Vaico
2014 Audi S8 Radiator Cap 8 Cyl 4.0L Vaico - VAICO

P311-21C6B27    V10-0890  New

3C0 121 321 , 3C0121321 , 5Q0 121 321 , 5Q0121321 , RC0162 , V100890

Qty:
In Stock & Ready to Ship
$11.37
Vaico Radiator Cap
  • Grade: Aftermarket Material Type: Plastic Location-Expansion Tank With OE No. 5Q0121321
  • VAICO
  • Product Attributes:
    • Colour: Black
    • Packaging height [cm]: 4
    • Pressure [bar]: 1,6
    • Weight [kg]: 0,06
Brand: Vaico
Additional Fitment Information:
Vehicle Submodel Block Engine CID CC
2014 - Audi S8 Base V 8 Cyl 4.0L 243 3993
Vaico
2017 Audi S8 Radiator Cap 8 Cyl 4.0L Vaico - VAICO

P311-21C6B27    V10-0890  New

Qty:
In Stock & Ready to Ship
$11.37
Vaico Radiator Cap
  • Grade: Aftermarket Material Type: Plastic Location-Reservoir With OE No. 5Q0121321
  • VAICO
  • Product Attributes:
    • Colour: Black
    • Packaging height [cm]: 4
    • Pressure [bar]: 1,6
    • Weight [kg]: 0,06
Brand: Vaico
Additional Fitment Information:
Vehicle Submodel Engine Designation Block Engine CID CC
2017 - Audi S8 Plus DDTA V 8 Cyl 4.0L 243 3993
Gates
2001 Audi S8 Radiator Cap 8 Cyl 4.2L Gates - OE Type Radiator Cap

P311-5E24D44    31335  New

10225 , 105 , 11225 , 12R12 , 133-0142 , 171121321 , 171121321B , 171121321C , 171121321D , 171121321F , 171121321J , 31335 , 33024 , 443121321 , 46025 , 53-10702 , 644105 , 7025 , 703-1441 , 82925 , DR-25 , ER-22 , R-25 , R66140 , RA-16 , RR-25 , RS-57 , T-25

Qty:
In Stock & Ready to Ship
$9.30
Gates Radiator Cap
  • 20 psi Pressure Rating
  • OE Type Radiator Cap
  • Product Attributes:
    • California Proposition 65: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
    • Cap Depth: .88
    • Coolant Recovery System: Closed System
    • Filler Neck Depth:
      • .88
      • 22
    • Filler Neck Inside Diameter:
      • 1.31
      • 33
    • Filler Neck Outside Diameter:
      • 2.16
      • 55
    • OE Comparison Rating: Oe Performance
    • Pressure Rating: 20
    • SAE Pressure Range (psi): 18-22
    • Shell Outside Diameter: 2.27
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
2001 - Audi S8 GAS V 8 Cyl 4.2L - 4172
Motorad
1972 Audi Super 90 Radiator Cap 4 Cyl 1.8L Motorad - Safety Lever

P311-1955C18    ST13  New

10329 , 10329ST , 11329 , 12R5S , 1678-290346 , 17213 , 18329 , 28329 , 31511 , 380172 , 703-1700 , 70329BL , 70329RD , 7713 , 7713-RC , 861852 , 861855 , 9ST13 , C1UZ8100A , P7713 , RC106 , RC109 , RC119 , RL12 , RL41 , RL44 , RS512 , SP29 , ST13

Qty:
In Stock & Ready to Ship
$8.01
Motorad Radiator Cap
  • Safety Lever Radiator Cap
  • Relief pressure 13 lb
  • Safety Lever
  • Product Attributes:
    • Cap Depth: 1.48
    • Cap Finish: Plastic
    • Coolant Recovery System: Open & Closed System
    • Lever Type:
      • Safety Lever
      • Yes
    • Quick Pressure Release: Yes
    • Valve OD: 1.54 In
  • Safely remove your radiator cap by venting the pressure from the cooling system before removing the cap. Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1972 - Audi Super 90 L 4 Cyl 1.8L 107 1760
Gates
1972 Audi Super 90 Radiator Cap 4 Cyl 1.8L Gates - Safety Release Radiator Cap

P311-0BDAF87    31511  New

10329 , 11329 , 12R5S , 3-EF-16 , 3-EG-16 , 3-S-12 , 3-S-13 , 3-S-16 , 31511 , 33013 , 33016 , 33061 , 4-1196 , 46014 , 46017 , 46062 , 53-00165 , 53-00223 , 53-00231 , 53-00280 , 53-00306 , 53-00314 , 53-00348 , 53-00355 , 53-00363 , 620206 , 644129 , 703-1432 , 703-1433 , 703-1436 , 703-1452 , 703-1461 , 703-1700 , 70329BL , 70329RD , 7713 , 82829 , 861852 , 861855 , BR-12P , BR-13P , BR-16P , BSC-12 , BSC-13 , C1UZ 8100 A , CSP-12 , CSP-13 , DRS-12 , DRS-13 , DRS-16 , DRS-16L , ESP-12 , ESP-19 , ESR-12 , ESR-13 , ESR-16 , L95-5051 , L95-5086 , L95-5094 , PL-14 , RC-106 , RC-109 , RC-119 , RL-12 , RL-14 , RL-41 , RL-44 , RP-16 , RS-512 , RSP-12 , RSP-16 , RSP-21 , RSP-22 , RSP-29 , S-12 , SA-21 , SP-12 , SP-13 , SP-16 , SP-21 , SP-22 , SP-29 , SPT-12 , SPT-16 , SR-12 , ST-13 , WF-16

Qty:
In Stock & Ready to Ship
$8.07
Gates Radiator Cap
  • 13 psi Pressure Rating
  • Safety Release Radiator Cap
  • Product Attributes:
    • Attachment Type: Cam On
    • California Proposition 65: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
    • Cap Depth: 1.48
    • Cap Finish: Stainless Steel
    • Coolant Recovery System: Optional System
    • Filler Neck Depth:
      • .75
      • 19
    • Filler Neck Inside Diameter:
      • 1.61
      • 41
    • Filler Neck Outside Diameter:
      • 2.13
      • 54
    • Height: 1.48
    • Lever Type: Yes
    • Pressure Rating: 13
    • Quick Pressure Release: Yes
    • SAE Pressure Range (psi): 12-16
    • Shell Outside Diameter: 2.61
    • Valve Outside Diameter: 1.54
    • Width: 2.25
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
1972 - Audi Super 90 GAS L 4 Cyl 1.8L 107 1760
Gates
1972 Audi Super 90 Radiator Cap 4 Cyl 1.8L Gates - OE Type Radiator Cap

P311-4990A6B    31527  New

022251255 , 025121321 , 028 121 453 , 0488-15-205 , 0766-15-205 , 0839-15-350 , 10229 , 11229 , 123 , 127 , 129 , 12R5 , 130660 , 1326012 , 133-0143 , 133-8045 , 133-8052 , 133-8078 , 1502172631 , 15701-72030 , 1570172030 , 1610771 , 16401-23070 , 16401-36010 , 16401-36011 , 16401-40120 , 16401-41010 , 16401-41021 , 16401-50010 , 16401-60010 , 16401-60040 , 16407-60010 , 1686107 , 17111100848 , 171111200 , 17111262051 , 17111712669 , 19045-692-003 , 19045-PA0-014 , 19045634003 , 21430-10600 , 21430-89900 , 21430-89901 , 21430-89902 , 21430-89905 , 21430-89906 , 21430-89907 , 21430-89990 , 21430-89994 , 21430-C0500 , 21430-M0200 , 21430-U0100 , 21430-U9600 , 2239643 , 2296-23-921 , 25060143 , 25330-11415 , 25330-14201 , 2981-15-205 , 2993-23-921 , 2996-23-921 , 3-EG-165 , 3-M-12 , 3-M-13 , 3-M-16 , 312121321E , 31527 , 3187167 , 321121321C , 3220313 , 3239375 , 3241241 , 33000866 , 33006 , 33009 , 33030 , 46007 , 46010 , 46031 , 53-10660 , 53-10694 , 5364692 , 620202 , 6410292 , 6410457 , 645012012 , 645012021 , 645012051 , 7013 , 70229BL , 70229RD , 703-1415 , 703-1416 , 703-1426 , 703-1445 , 703-1697 , 745124020 , 745153010 , 77-513 , 7701018380 , 82929 , 83502502 , 8871-15-205 , 912609 , 928 106 257 0 , 928 106 257 03 , A-14 , A57167 , A61784 , BC-12 , BC-13 , BR-12 , BR-13 , BR-16 , C23860 , C9AZ 8100 A , C9ZZ 8100 A , CH10427 , CP-12 , CP-13 , D1TZ 8100 A , D27Z 8100 A , D2RY 8100 B , D2TZ 8100 A , D2VY 8100 A , D2VY 8K103 A , D7ZZ 8100 A , D8RZ 8100 A , DR-12 , DR-13 , DR-16 , DR-31 , E2DZ 8100 A , E5TH 8100 A , E5TZ 8100 A , E9RY 8100 A , E9TZ 8100 A , ER-12 , ER-13 , ER-16 , ER-19 , ER-27 , J3239375 , J3246241 , L95-4004 , L95-4039 , M-12 , M-13 , M-16 , MA152550 , MB007298 , MB007299 , MB007570 , MB007571 , MB007900 , MB008101 , MB221633 , MB721633 , P-12 , P-13 , PA-14 , R-12 , R-13 , R-16 , R-22 , R-29 , R12 , RA-14 , RA-19 , RC-12 , RC-16 , RC-19 , RC-22 , RC-45 , RC-6 , RC-9 , RR-12 , RR-16 , RR-22 , RR-29 , RS-12 , RS-12A , RS-16 , RS-32 , RS-41 , RS-50 , RS-50A , RS-512A , RS-52 , RS-6 , RS-62 , S-12 , S12 , S16 , SE01-15-205 , T-13 , U95-4110 , WA-14 , WC-12 , WC-13 , WC-14 , WC-16 , WR-12 , WR-16 , ZZL0-15-205

Qty:
In Stock & Ready to Ship
$8.07
Gates Radiator Cap
  • 13 psi Pressure Rating
  • OE Type Radiator Cap
  • Product Attributes:
    • California Proposition 65: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
    • Cap Depth: 1.25
    • Coolant Recovery System: Optional System
    • Filler Neck Depth:
      • .75
      • 19
    • Filler Neck Inside Diameter:
      • 1.61
      • 41
    • Filler Neck Outside Diameter:
      • 2.13
      • 54
    • OE Comparison Rating: Oe Performance
    • Pressure Rating: 13
    • SAE Pressure Range (psi): 12-16
    • Shell Outside Diameter: 2.33
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
1972 - Audi Super 90 GAS L 4 Cyl 1.8L 107 1760
CSF Radiator
Radiator Cap CSF Radiator

P311-4FF1E8F    4508  New

10282

Qty:
In Stock & Ready to Ship
$8.76
  • Radiator Cap

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: CSF Radiator
Additional Fitment Information:
Vehicle