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The Following brands are available based on your search.

  • APA/URO Parts
    APA/URO Parts
  • Autopart International
    Autopart International
  • CARQUEST
    CARQUEST
  • CRP
    CRP
  • Calorstat
    Calorstat
  • CoolXPert
    CoolXPert
  • Gates
    Gates
  • Genuine
    Genuine
  • Motorad
    Motorad
  • URO Parts
    URO Parts
  • Vaico
    Vaico

Shop By Related Engine Coolant Reservoir Cap Parts

Shop below for all Engine Coolant Reservoir Cap related parts for your Audi S8

Engine Coolant Reservoir Cap
Engine Coolant Reservoir Cap
Engine Coolant Reservoir Cap Seal
Engine Coolant Reservoir Cap Seal

Shop for Top Selling Genuine Audi S8 Engine Coolant Reservoir Caps

  • We Stock the following top leading brands, including CoolXPert, Vaico, APA/URO Parts, Autopart International, Genuine, Calorstat, CRP, Motorad, URO Parts, Gates, CARQUEST
  • Constantly Updated Inventory of Audi S8 Replacement Engine Coolant Reservoir Cap Parts

We also have Engine Coolant Reservoir Cap parts for other Audi models, including 100 Quattro, 100 Series, 200 Quattro, 4000 Quattro, 5000 Quattro, 80 Quattro, 90 Quattro, A1, A3, A3 Quattro, A3 Sportback etron, A4, A4 Quattro, A4 allroad, A5, A5 Quattro, A5 Sportback, A6, A6 Quattro, A7, A7 Quattro, A7 Sportback, A8, A8 Quattro, Allroad Quattro, Cabriolet, Coupe, Coupe Quattro, Q3, Q3 Quattro, Q5, Q5 PHEV, Q7, Q8, Quattro, R8, RS Q8, RS3, RS4, RS5, RS5 Sportback, RS6, RS6 Avant, RS7, RS7 Sportback, S3, S4, S5, S5 Sportback, S6, S7, S7 Sportback, S8, SQ5, SQ7, SQ8, TT, TT Quattro, TT RS Quattro, TTS Quattro, V8 Quattro, allroad, 80, 90, 100, 200, 4000, 5000.


CoolXPert
2009 Audi S8 Engine Coolant Reservoir Cap CoolXPert

P311-3BBB12C    W0133-1737157  New

Qty:
In Stock & Ready to Ship
$21.49
CoolXPert Engine Coolant Reservoir Cap
Brand: CoolXPert
Additional Fitment Information:
Vehicle
2009 - Audi S8
Vaico
2018 Audi S8 Engine Coolant Reservoir Cap Vaico

P311-01E7711    W0133-2146382  New

Qty:
In Stock & Ready to Ship
$22.42
Brand: Vaico
Additional Fitment Information:
Vehicle
2018 - Audi S8
APA/URO Parts
2003 Audi S8 Engine Coolant Reservoir Cap APA/URO Parts

P311-2AF1B74    W0133-1641795  New

Qty:
In Stock & Ready to Ship
$15.31
APA/URO Parts Engine Coolant Reservoir Cap
Brand: APA/URO Parts
Additional Fitment Information:
Vehicle
2003 - Audi S8
Autopart International
2009 Audi S8 Engine Coolant Reservoir Cap Autopart International

P311-0DD1C66    W0133-3476506  New

Qty:
In Stock & Ready to Ship
$27.59
Autopart International Engine Coolant Reservoir Cap
Brand: Autopart International
Additional Fitment Information:
Vehicle
2009 - Audi S8
Genuine
2020 Audi S8 Engine Coolant Reservoir 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.
  • Production: -06/07/2020
Brand: Genuine
Additional Fitment Information:
Vehicle Prod. Date Range
2020 - Audi S8 To:06-07-20
Genuine
2020 Audi S8 Engine Coolant Reservoir 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.
  • Production: 06/08/2020-
Brand: Genuine
Additional Fitment Information:
Vehicle Prod. Date Range
2020 - Audi S8 Fr:06-08-20
Calorstat
2015 Audi S8 Engine Coolant Reservoir Cap Calorstat

P311-5519708    RC0162  New

3C0121321 , 5Q0121321

Qty:
In Stock & Ready to Ship
$8.98
Calorstat Engine Coolant Reservoir Cap
  • Engine Coolant Reservoir Cap
  • Supplementary Information: Pressure Rating: 1,6bar - 23psi
  • Product Attributes:
    • Maximum Pressure Rating: 23
    • Opening Pressure: 23 Psi
    • Proposition 65: Warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer, Birth Defects, Or Other Reproductive Harm.
Brand: Calorstat
Additional Fitment Information:
Vehicle
2015 - Audi S8
Genuine
2021 Audi S8 Engine Coolant Reservoir 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.
Brand: Genuine
Additional Fitment Information:
Vehicle
2021 - Audi S8
CRP
2014 Audi S8 Engine Coolant Reservoir Cap 8 Cyl 4.0L CRP

P311-05383F3    CPE0039  New

Qty:
In Stock & Ready to Ship
$13.99
CRP Engine Coolant Reservoir Cap
  • Rein OE Quality Expansion Tank Cap
  • Product Attributes:
    • Application Type: Applicationspecific
    • Bullet Point 1: Manufactured To Strict Engineering Standards/specifications In Materials And Tolerances.
    • Bullet Point 2: Direct Fit.
    • Bullet Point 3: Meets Or Exceeds Pressure Specifications Demanded By The Oe Manufacturer.
    • Bullet Point 4: Produced By An Original Equipment Supplier.
    • Container Type: Bg
    • Country of Origin: De
    • Item Height: 0.7500
    • Item Length: 3.5000
    • Item Level GTIN: 888544080333
    • Item Quantity Size UOM: Ea
    • Item UOM: Ea
    • Item Weight: 0.1400
    • Item Weight Unit UOM: Lb
    • Item Width: 3.5000
    • Link to Manufacturer Page: Www.reinautomotive.com
    • Product Desc Extended 240: Rein Oe Quality Expansion Tank Caps Are Designed To Be Direct Replacements For Oe Caps. Rein Caps Are Designed To Match Or Exceed The Oe Materials Used And Are Produced To The Highest Standards To Ensure Long Service Life.
    • Product Desc Invoice 40: Rein Expansion Tank Cap
    • Product Desc Long 80: Rein Oe Quality Expansion Tank Cap
    • Product Desc Short 20: Expansion Tank Cap
    • Warranty Distance: 24000
    • Warranty Distance UOM: Mi
  • Rein Automotive OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality expansion tank caps keep the coolant system at the proper pressure just like the OE cap.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: CRP
Additional Fitment Information:
Vehicle Block Engine CID CC
2014 - Audi S8 V 8 Cyl 4.0L 243 3993
Calorstat
2008 Audi S8 Engine Coolant Reservoir Cap Calorstat

P311-454067E    RC0002  New

100 238 0003 , 8E0121321 , RC237

Qty:
In Stock & Ready to Ship
$10.64
Calorstat Engine Coolant Reservoir Cap
  • Engine Coolant Reservoir Cap
  • Supplementary Information: Pressure Rating: 1,4bar - 20psi
  • Product Attributes:
    • Opening Pressure: 20 Psi
    • Proposition 65: Warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer, Birth Defects, Or Other Reproductive Harm.
Brand: Calorstat
Additional Fitment Information:
Vehicle
2008 - Audi S8
Motorad
2003 Audi S8 Engine Coolant Reservoir Cap 8 Cyl 4.2L Motorad - Standard

P311-18163B4    T34  New

17034 , 703-1808 , 7034 , 9T34 , NI , P7034 , T34

Qty:
In Stock & Ready to Ship
$10.91
Motorad Engine Coolant Reservoir Cap
  • Engine Coolant Reservoir Cap
  • Relief pressure 20 lb For vehicles requiring cap with valve stem
  • Standard
  • Product Attributes:
    • Attachment Type: Threaded
    • Coolant Recovery System: Open & Closed System
    • Lever Type: Standard
    • Pressure Release Lever: No
    • Pressurized: Yes
    • Valve OD: 1.29 In
    • Vented: Yes
  • 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
2003 - Audi S8 V 8 Cyl 4.2L - 4172
URO Parts
2008 Audi S8 Engine Coolant Reservoir Cap URO Parts

P311-4A186E5    8E0121321  New

1002380002 , 603-098 , 8E0 121 321 , 8E0121321 , URO-008069 , V10-0491

Qty:
In Stock & Ready to Ship
$7.58
URO Parts Engine Coolant Reservoir Cap
  • Expansion Tank Cap
    • Guaranteed fitment
    • Precision-molded to OE cap dimensions to ensure compatibility with original and aftermarket coolant recovery tanks
    • Quality cap and seal materials resist engine heat and harsh cooling system environment
    • Factory pressure-tested
    • 24 Month Unlimited Mileage Warranty
Brand: URO Parts
Additional Fitment Information:
Vehicle
2008 - Audi S8
URO Parts
2002 Audi S8 Engine Coolant Reservoir Cap URO Parts

P311-501AC90    443121321  New

02269 , 10225 , 118 54029 280 , 118 54029 589 , 118 54029 738 , 171 121 321D , 31335 , 443 121 321 , 443 121 321-E , 443121321 , 443121321E , URO-002826 , V10-0018

Qty:
In Stock & Ready to Ship
$3.71
URO Parts Engine Coolant Reservoir Cap
  • Expansion Tank Cap
    • Guaranteed fitment
    • Precision-molded to OE cap dimensions to ensure compatibility with original and aftermarket coolant recovery tanks
    • Quality cap and seal materials resist engine heat and harsh cooling system environment
    • Factory pressure-tested
    • 24 Month Unlimited Mileage Warranty
Brand: URO Parts
Additional Fitment Information:
Vehicle
2002 - Audi S8
Motorad
2002 Audi S8 Engine Coolant Reservoir Cap 8 Cyl 4.2L Motorad - Standard

P311-025B56B    T25  New

Qty:
In Stock & Ready to Ship
$8.05
Motorad Engine Coolant Reservoir Cap
  • Engine Coolant Reservoir Cap
  • Relief pressure 16 lb
  • Standard
  • Product Attributes:
    • Attachment Type: Cam-on
    • Coolant Recovery System: Open & Closed System
    • Lever Type: Standard
    • Pressure Release Lever: No
    • Pressurized: Yes
    • Valve OD: 1.33 In
    • Vented: Yes
  • 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
2002 - Audi S8 V 8 Cyl 4.2L - 4172
Motorad
2003 Audi S8 Engine Coolant Reservoir Cap 8 Cyl 4.2L Motorad - Standard

P311-025B56B    T25  New

10225 , 10225ST , 11225 , 12R12 , 17025 , 31335 , 443121321 , 7025 , 7025-RC , 703-1441 , 9T25 , DLR14725 , P7025 , R25 , T25

Qty:
In Stock & Ready to Ship
$8.05
Motorad Engine Coolant Reservoir Cap
  • Engine Coolant Reservoir Cap
  • Relief pressure 16 lb For vehicles requiring cap w/o valve stem
  • Standard
  • Product Attributes:
    • Attachment Type: Cam-on
    • Coolant Recovery System: Open & Closed System
    • Lever Type: Standard
    • Pressure Release Lever: No
    • Pressurized: Yes
    • Valve OD: 1.33 In
    • Vented: Yes
  • 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
2003 - Audi S8 V 8 Cyl 4.2L - 4172
Motorad
2009 Audi S8 Engine Coolant Reservoir Cap 10 Cyl 5.2L Motorad - Standard

P311-517A5B7    T49  New

10249 , 10249ST , 11249 , 12R29 , 1678-290344 , 17049 , 1J0121321B , 31529 , 3B0121321 , 3C0121321 , 54019 , 5Q0121321 , 703-1391 , 7049 , 9T49 , P7049 , T49

Qty:
In Stock & Ready to Ship
$6.42
Motorad Engine Coolant Reservoir Cap
  • Engine Coolant Reservoir Cap
  • Relief pressure 20 lb
  • Standard
  • Product Attributes:
    • Attachment Type: Threaded
    • Coolant Recovery System: Open & Closed System
    • Lever Type: Standard
    • Pressure Release Lever: No
    • Pressurized: Yes
    • Vented: Yes
  • 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
2009 - Audi S8 V 10 Cyl 5.2L - 5204
Gates
2009 Audi S8 Engine Coolant Reservoir Cap 10 Cyl 5.2L Gates - OE Type Radiator Cap

P311-52E59E2    31529  New

10249 , 11249 , 1C9121321 , 1J0 121 321 , 1J0121321 , 1J0121321A , 1J0121321B , 2Q0121321 , 31529 , 33056 , 3B0121321 , 420121321 , 46057 , 703-1391 , 7049 , 8D0121403C , 8E0121321 , 95510644720 , R66107 , R66109 , R66111 , R66141 , T-49

Qty:
In Stock & Ready to Ship
$11.99
Gates Engine Coolant Reservoir Cap
  • 22 psi Pressure Rating
  • OE Type Radiator Cap
  • Product Attributes:
    • Cap Depth: .66
    • Coolant Recovery System: Closed System
    • Filler Neck Depth:
      • .66
      • 17
    • Filler Neck Inside Diameter:
      • 2.18
      • 55
    • Filler Neck Outside Diameter:
      • 2.47
      • 63
    • OE Comparison Rating: Oe Performance
    • Pressure Rating: 22
    • SAE Pressure Range (psi): 18-22
    • Shell Outside Diameter: 3.14
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
2009 - Audi S8 GAS V 10 Cyl 5.2L - 5204
CARQUEST
2007 Audi S8 Engine Coolant Reservoir Cap CARQUEST

P311-2873A82    W0133-1983797  New

Qty:
In Stock & Ready to Ship
$22.08
CARQUEST Engine Coolant Reservoir Cap
Brand: CARQUEST
Additional Fitment Information:
Vehicle
2007 - Audi S8