Home / OE Number Search / Coolant tank cap / 3B0121321 OE 3B0121321 — Coolant tank cap Compare 26 brands — check fitment and order online
46 matching parts
About OE part number 3B0121321 OE part number 3B0121321 is a Coolant tank cap compatible with AC, ACURA and other makes. Available from 26 brands, priced from £3.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Coolant tank cap OE 3B0121321 prices range from £3.99 to £19.99, with 26 brands offering compatible parts.
OEM Workshop Diagram — Engine › 12190 Original installation position for OE 3B0121321. The red ring marks where this part installs on the vehicle.
Position 16 on 2019 (7J-J-000 001 >>) — Engine › 12190 OEM workshop diagram — sourced from manufacturer parts catalogue.
Fits these vehicles OE 3B0121321 is compatible with the following make/model combinations:
Make Models AUDI A4 B8 (8K2), A4 B8 Avant (8K5), A5 (8T3), A4 B7 (8EC) +4 SKODA OCTAVIA II Combi (1Z5) VW GOLF V (1K1)
Available brands Choose a brand to see their compatible parts for OE 3B0121321.
Coolant tank cap OEM 3B0121321: Cost & Alternatives
Price range from £3.99 — £19.99
Total products 46 from 26 brands Relevance Price: Low to High Price: High to Low Brand: A-Z TOPRAN Cap, coolant tank — TOPRAN 107 532 OE 3B0121321 MPN 107 532
5 · 6 · 12 · 7 Details
Colour 5
Material 6
Mounting Type 12
Thread Type 7 ABAKUS Cap, coolant tank — ABAKUS 053-027-004 OE 3B0121321 MPN 053-027-004
1,4 bar · 5 Details
Pressure [bar] 1,4 bar
Colour 5 Metalcaucho Cap, coolant tank — Metalcaucho 03677 OE 3B0121321 MPN 03677
EAN 8435108449390
32 mm · 32 mm · 0,067 kg · 1,5 bar Details
Thickness [mm] 32 mm
Height [mm] 32 mm
Weight [kg] 0,067 kg
Pressure [bar] 1,5 bar TOPRAN Cap, coolant tank — TOPRAN 109 345 OE 3B0121321 MPN 109 345
5 · 6 · 12 · 7 Details
Colour 5
Material 6
Mounting Type 12
Thread Type 7 NTY Cap, coolant tank — NTY CCK-VW-001 OE 3B0121321 MPN CCK-VW-001
EAN 5902048891068
5 · CCK-VW-001 Details
Colour 5
Fabrication Number CCK-VW-001 ESEN SKV Cap, coolant tank — ESEN SKV 61SKV011 OE 3B0121321 MPN 61SKV011
EAN 5903968442408
0,07 kg · 6 · 1,5 bar · 3 Details
Weight [kg] 0,07 kg
Material 6
Opening Pressure [bar] 1,5 bar
Guarantee 3 TOPRAN Cap, coolant tank — TOPRAN 111 023 OE 3B0121321 MPN 111 023
3B0 121 321 · 5 · 6 · 12 Details
for OE number 3B0 121 321
Colour 5
Material 6
Mounting Type 12 JP GROUP Cap, coolant tank — JP GROUP 1114800300 OE 3B0121321 MPN 1114800300
EAN 5710412135249
1,4 bar · 5 Details
Pressure [bar] 1,4 bar
Colour 5 ESEN SKV Cap, coolant tank — ESEN SKV 61SKV012 OE 3B0121321 MPN 61SKV012
EAN 5903968442415
0,08 kg · 6 · 1,5 bar · 3 Details
Weight [kg] 0,08 kg
Material 6
Opening Pressure [bar] 1,5 bar
Guarantee 3 vika Cap, coolant tank — vika 11210088401 OE 3B0121321 MPN 11210088401
EAN 6923570455305
0,16 kg · 1 · 5 · 6 Details
Weight [kg] 0,16 kg
Required quantity 1
Colour 5
Material 6 FAST Cap, coolant tank — FAST FT58404 OE 3B0121321 MPN FT58404
EAN 5904157841057
1,5 bar Details
Pressure [bar] 1,5 bar TRUCKTEC AUTOMOTIVE Cap, coolant tank — TRUCKTEC AUTOMOTIVE 07.40.101 OE 3B0121321 MPN 07.40.101
3B0 121 321 · 5 · 1,4 bar Details
for OE number 3B0 121 321
Colour 5
Opening Pressure [bar] 1,4 bar MOTORAD Cap, coolant tank — MOTORAD T49 OE 3B0121321 MPN T49
1J0121321B · 1,5 bar · 5 · 68,7 g Details
for OE number 1J0121321B
Pressure [bar] 1,5 bar
Colour 5
Weight [g] 68,7 g GATES Cap, coolant tank — GATES RC228 OE 3B0121321 MPN RC228
EAN 5414465700828
32 mm · 1,4 bar · 79 mm · 20 psi Details
Height [mm] 32 mm
Pressure [bar] 1,4 bar
Outer Diameter [mm] 79 mm
Pressure [psi] 20 psi CALORSTAT by Vernet Cap, coolant tank — CALORSTAT by Vernet RC0011 OE 3B0121321 MPN RC0011
EAN 3531650022533
1,4 bar Details
Pressure [bar] 1,4 bar METZGER AUTOTEILE Cap, coolant tank — METZGER AUTOTEILE 2140060 OE 3B0121321 MPN 2140060
EAN 4250032524036
1,4 bar · 6 Details
Pressure [bar] 1,4 bar
Material 6 FEBI BILSTEIN Cap, coolant tank — FEBI BILSTEIN 40722 OE 3B0121321 MPN 40722
EAN 4027816407225
3B0 121 321 · 0,064 kg · 5 · 6 Details
for OE number 3B0 121 321
Weight [kg] 0,064 kg
Colour 5
Material 6 AIC Cap, coolant tank — AIC 54850 OE 3B0121321 MPN 54850
EAN 4046283548507
1,4 bar · 5 · 6 Details
Pressure [bar] 1,4 bar
Colour 5
Material 6 TRICLO Cap, coolant tank — TRICLO 313326 OE 3B0121321 MPN 313326
32 mm · 1 · 87 mm · 1,5 bar Details
Thickness [mm] 32 mm
Required quantity 1
Outer Diameter [mm] 87 mm
Opening Pressure [bar] 1,5 bar MEYLE Cap, coolant tank — MEYLE 100 238 0002 OE 3B0121321 MPN 100 238 0002
EAN 4040074572238
1,4 bar · 5 Details
Pressure [bar] 1,4 bar
Colour 5 AUTOMEGA Cap, coolant tank — AUTOMEGA 160055610 OE 3B0121321 MPN 160055610
EAN 4053184350405
1,4 bar · 6 Details
Pressure [bar] 1,4 bar
Material 6 HEPU Cap, coolant tank — HEPU TM6342C OE 3B0121321 MPN TM6342C
EAN 4250093416738
1,4 bar · 6 Details
Pressure [bar] 1,4 bar
Material 6 MAHLE Cap, coolant tank — MAHLE CRB 96 000S OE 3B0121321 MPN CRB 96 000S
EAN 4057635105194
6,3 cm · 6,30 cm · 6,30 cm · 60 g Details
Packaging length [cm] 6,3 cm
Packaging width [cm] 6,30 cm
Packaging height [cm] 6,30 cm
Net Weight [g] 60 g JAPKO Cap, radiator — JAPKO 33006 OE 3B0121321 MPN 33006
EAN 8033001908527
1,5 bar Details
Pressure [bar] 1,5 bar NTY coolant expansion tank — NTY CZW-ME-001 OE 3B0121321 MPN CZW-ME-001
EAN 5902048891402
6 · 896 · 288 · 885 Details
Material 6
Supplementary Article/Supplementary Info 896
Supplementary Article/Info 2 288
Supplementary Article/Info 2 885 3RG coolant expansion tank — 3RG 81741 OE 3B0121321 MPN 81741
EAN 8433819049687
567 Details
Supplementary Article/Info 2 567 METZGER AUTOTEILE coolant expansion tank — METZGER AUTOTEILE 2140116 OE 3B0121321 MPN 2140116
EAN 4250032683979
896 · 287 Details
Supplementary Article/Supplementary Info 896
Supplementary Article/Info 2 287 FEBI BILSTEIN coolant expansion tank — FEBI BILSTEIN 172167 OE 3B0121321 MPN 172167
EAN 4054224721674
0,666 kg · 287 Details
Weight [kg] 0,666 kg
Supplementary Article/Info 2 287 ASHIKA Cap, radiator — ASHIKA 33-00-006 OE 3B0121321 MPN 33-00-006
EAN 8033001907988
1,5 bar Details
Pressure [bar] 1,5 bar Borsehung coolant expansion tank — Borsehung B19286 OE 3B0121321 MPN B19286
EAN 4251475117588
287 Details
Supplementary Article/Info 2 287 Borsehung coolant expansion tank — Borsehung B11943 OE 3B0121321 MPN B11943
EAN 4251475121127
287 Details
Supplementary Article/Info 2 287 Borsehung coolant expansion tank — Borsehung B11938 OE 3B0121321 MPN B11938
EAN 4251475119131
287 Details
Supplementary Article/Info 2 287 FAST coolant expansion tank — FAST FT61241 OE 3B0121321 MPN FT61241
EAN 5901797078942
176 mm · 212 mm · 1,4 bar · 1 Details
Length [mm] 176 mm
Width [mm] 212 mm
Pressure [bar] 1,4 bar
Colour 1 Technical Specifications Show all specifications Attribute Value Supplementary Article/Supplementary Info 35 Pressure [bar] 2 Thread Size 1 M3 Diameter [mm] 45 Height [mm] 18 Height [mm] 31 Height [mm] 33 Height [mm] 34 Inner Diameter [mm] 29 Material 4
Related cross-references Cross-reference numbers associated with 3B0121321 — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
103414 — Tie rod axle joint · 123 brands 109 342 — Track Rod End · 112 brands 103522 — Tie rod axle joint · 108 brands 10-0209 — Window lifter · 101 brands 100209 — Window lifter · 101 brands 10-0490 — Window lifter · 101 brands 100490 — Window lifter · 101 brands 108 227 — O2 Sensor · 101 brands 1J0 121 321 B — coolant expansion tank · 96 brands 1J0 121 321B — coolant expansion tank · 96 brands 1J0121321B — coolant expansion tank · 96 brands 107 519 — Wheel Bearing Set · 93 brands Top OE numbers for Cap, coolant tank Common original equipment numbers linked to stocked alternatives.
Coolant tank cap by car make Find Coolant tank cap by brand Frequently Asked Questions What does OE number 3B0121321 fit? OE 3B0121321 fits vehicles from AC, ACURA, ALFA ROMEO and other compatible models listed below.
What part type is 3B0121321? OE 3B0121321 is an original equipment reference for a Coolant tank cap. It identifies the exact part specification used by the vehicle manufacturer.
How much does Coolant tank cap 3B0121321 cost? Replacement parts for OE 3B0121321 cost between £3.99 and £19.99, depending on brand and specification.
Which brands make Coolant tank cap 3B0121321? vika, Borsehung, TOPRAN, ABAKUS, NTY all offer compatible replacements for OE 3B0121321.
Is 3B0121321 original equipment or aftermarket? OE 3B0121321 is an original equipment reference used by VAG, VW, AUDI. The parts listed below are quality-matched aftermarket and OEM-equivalent replacements tested against the same specification.
What is OE number 3B0121321? OE (Original Equipment) number 3B0121321 is a manufacturer's reference code for Coolant tank cap used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 26 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE 3B0121321.
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