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Description
Cap Expansion Tank for BMW 2, 3 & 4 - 431420Vehicle Fitment & Part Details The Cap Expansion Tank is listed for the BMW 2 Coupe (2021 2026). Pressure: 2. 0 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN engine. Key Details SKU 431420 Component Cap Expansion Tank Specs Pressure: 2. 0 Bar Primary Fitment BMW 2 Coupe (2021 2026) Listing Highlights Listed for selected BMW applications shown in the fitment table. Pressure: 2. 0 Bar. Vehicle Fitment Includes 76 supplied
Vehicle Fitment & Part Details
The Cap Expansion Tank is listed for the BMW 2 Coupe (2021-2026). Pressure: 2.0 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN/engine.
Key Details
- SKU
- 431420
- Component
- Cap Expansion Tank
- Specs
- Pressure: 2.0 Bar
- Primary Fitment
- BMW 2 Coupe (2021-2026)
Listing Highlights
- Listed for selected BMW applications shown in the fitment table.
- Pressure: 2.0 Bar.
Vehicle Fitment
Includes 76 supplied applications covering BMW. An additional 5 applications are not shown here due to listing-length limits - see the live product listing for the complete fitment list. Use the full table below to confirm model, chassis, year range, engine and power before ordering.
View Full Vehicle Fitment (76 applications)
| Make | Model | Chassis | Years | Engine | Power |
|---|---|---|---|---|---|
| BMW | 2 Coupe | G42, G87 | 2021-2026 | M2 S58 B30 A | 338 kW / 460 HP |
| BMW | 3 | E90 | 2004-2011 | M3 S65 B40 A | 309 kW / 420 HP |
| BMW | 3 | F30, F80 | 2011-2018 | M3 S55 B30 A | 317 kW / 431 HP |
| BMW | 3 Convertible | E93 | 2006-2013 | M3 S65 B40 A | 309 kW / 420 HP |
| BMW | 3 Coupe | E92 | 2006-2013 | M3 S65 B40 A | 309 kW / 420 HP |
| BMW | 3 Coupe | E92 | 2006-2013 | M3 GTS S65 B44 A | 331 kW / 450 HP |
| BMW | 4 Convertible | F33, F83 | 2013-2026 | M4 S55 B30 A | 317 kW / 431 HP |
| BMW | 4 Coupe | F32, F82 | 2013-2026 | M4 S55 B30 A | 317 kW / 431 HP |
| BMW | 5 | E60 | 2001-2010 | 523 i N52 B25 A; N52 B25 B; N52 B25 BE | 130 kW / 177 HP |
| BMW | 5 | E60 | 2001-2010 | 523 i N52 B25 A; N52 B25 BE | 140 kW / 190 HP |
| BMW | 5 | E60 | 2001-2010 | 523 i N53 B25 A | 140 kW / 190 HP |
| BMW | 5 | E60 | 2001-2010 | 525 i M54 B25 256S5 | 141 kW / 192 HP |
| BMW | 5 | E60 | 2001-2010 | 525 i N52 B25 A; N52 B25 B; N52 B25 BF | 160 kW / 218 HP |
| BMW | 5 | E60 | 2001-2010 | 525 xi N52 B25 A | 160 kW / 218 HP |
| BMW | 5 | E60 | 2001-2010 | 530 i M54 B30 306S3 | 170 kW / 231 HP |
| BMW | 5 | E60 | 2001-2010 | 530 i N52 B30 A; N52 B30 BF | 190 kW / 258 HP |
| BMW | 5 | E60 | 2001-2010 | 530 i N52 B30 A; N52 B30 BF | 200 kW / 272 HP |
| BMW | 5 | E60 | 2001-2010 | 530 i N53 B30 A | 200 kW / 272 HP |
| BMW | 5 | E60 | 2001-2010 | 535 i N54 B30 A | 225 kW / 306 HP |
| BMW | 5 | E60 | 2001-2010 | 545 i N62 B44 A | 245 kW / 333 HP |
| BMW | 5 | E60 | 2001-2010 | 550 i N62 B48 B | 270 kW / 367 HP |
| BMW | 5 | E60 | 2001-2010 | M5 S85 B50 A | 373 kW / 507 HP |
| BMW | 5 | F10 | 2009-2016 | 523 i N52 B25 A; N52 B25 AF; N52 B25 B; N52 B25 BF | 150 kW / 204 HP |
| BMW | 5 | F10 | 2009-2016 | 530 i N52 B30 A; N52 B30 AF; N52 B30 BF | 190 kW / 258 HP |
| BMW | 5 | F10 | 2009-2016 | 535 i N55 B30 A | 225 kW / 306 HP |
| BMW | 5 | F10 | 2009-2016 | 550 i N63 B44 A | 300 kW / 408 HP |
| BMW | 5 | F10 | 2009-2016 | ActiveHybrid N55 B30 A | 250 kW / 340 HP |
| BMW | 5 | G30, F90 | 2016-2026 | M 550 i xDrive N63 B44 D | 390 kW / 530 HP |
| BMW | 5 | G30, F90 | 2016-2026 | M5 S63 B44 B | 441 kW / 600 HP |
| BMW | 5 | G30, F90 | 2016-2026 | M5 Competition S63 B44 B | 460 kW / 625 HP |
| BMW | 5 | G30, F90 | 2016-2026 | M5 CS S63 B44 B | 467 kW / 635 HP |
| BMW | 5 Gran Turismo | F07 | 2009-2017 | 535 i N55 B30 A | 225 kW / 306 HP |
| BMW | 5 Gran Turismo | F07 | 2009-2017 | 550 i N63 B44 A | 300 kW / 408 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 523 i N52 B25 A; N52 B25 B; N52 B25 BE | 130 kW / 177 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 523 i N53 B25 A | 140 kW / 190 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 525 i M54 B25 256S5 | 141 kW / 192 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 525 i N52 B25 A; N52 B25 B; N52 B25 BF | 160 kW / 218 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 530 i N52 B30 A; N52 B30 BF | 190 kW / 258 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 530 i N53 B30 A | 200 kW / 272 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 545 i N62 B44 A | 245 kW / 333 HP |
| BMW | 5 Touring | E61 | 2004-2010 | 550 i N62 B48 A; N62 B48 B | 270 kW / 367 HP |
| BMW | 5 Touring | E61 | 2004-2010 | M5 S85 B50 A | 373 kW / 507 HP |
| BMW | 5 Touring | F11 | 2009-2017 | 523 i N52 B25 A; N52 B25 AF; N52 B25 B | 150 kW / 204 HP |
| BMW | 5 Touring | F11 | 2009-2017 | 530 i N52 B30 A; N52 B30 AF | 190 kW / 258 HP |
| BMW | 5 Touring | F11 | 2009-2017 | 535 i N55 B30 A | 225 kW / 306 HP |
| BMW | 5 Touring | F11 | 2009-2017 | 550 i N63 B44 A | 300 kW / 408 HP |
| BMW | 6 | E63 | 2003-2010 | 645 Ci N62 B44 A | 245 kW / 333 HP |
| BMW | 6 | E63 | 2003-2010 | 650 i N62 B48 B | 270 kW / 367 HP |
| BMW | 6 | E63 | 2003-2010 | M S85 B50 A | 373 kW / 507 HP |
| BMW | 6 Convertible | E64 | 2004-2010 | 645 Ci N62 B44 A | 245 kW / 333 HP |
| BMW | 6 Convertible | E64 | 2004-2010 | 650 i N62 B48 B | 270 kW / 367 HP |
| BMW | 6 Convertible | E64 | 2004-2010 | M6 S85 B50 A | 373 kW / 507 HP |
| BMW | 6 Convertible | F12 | 2010-2018 | 640 i N55 B30 A | 235 kW / 320 HP |
| BMW | 6 Convertible | F12 | 2010-2018 | 650 i N63 B44 A | 300 kW / 408 HP |
| BMW | 6 Coupe | F13 | 2011-2017 | 640 i N55 B30 A | 235 kW / 320 HP |
| BMW | 6 Coupe | F13 | 2011-2017 | 650 i N63 B44 A | 300 kW / 408 HP |
| BMW | 7 | F01, F02, F03, F04 | 2008-2015 | 740 i, Li N54 B30 A | 240 kW / 326 HP |
| BMW | 7 | F01, F02, F03, F04 | 2008-2015 | 750 i, Li N63 B44 A | 300 kW / 408 HP |
| BMW | 7 | F01, F02, F03, F04 | 2008-2015 | 760 i, Li N74 B60 A | 400 kW / 544 HP |
| BMW | 8 Convertible | G14, F91 | 2018-2026 | M 850 i xDrive N63 B44 D | 390 kW / 530 HP |
| BMW | 8 Convertible | G14, F91 | 2018-2026 | M8 Competition S63 B44 B | 460 kW / 625 HP |
| BMW | 8 Coupe | G15, F92 | 2018-2026 | M 850 i xDrive N63 B44 D | 390 kW / 530 HP |
| BMW | 8 Coupe | G15, F92 | 2018-2026 | M8 Competition S63 B44 B | 460 kW / 625 HP |
| BMW | 8 Gran Coupe | G16, F93 | 2019-2026 | M 850 i xDrive N63 B44 D | 390 kW / 530 HP |
| BMW | 8 Gran Coupe | G16, F93 | 2019-2026 | M8 Competition S63 B44 B | 460 kW / 625 HP |
| BMW | X5 | E70 | 2006-2013 | 3.0 si N52 B30 A; N52 B30 AF; N52 B30 BF | 200 kW / 272 HP |
| BMW | X5 | E70 | 2006-2013 | 4.8 i xDrive N62 B48 B | 261 kW / 355 HP |
| BMW | X5 | E70 | 2006-2013 | M S63 B44 A | 408 kW / 555 HP |
| BMW | X5 | E70 | 2006-2013 | xDrive 30 i N52 B30 A | 200 kW / 272 HP |
| BMW | X5 | E70 | 2006-2013 | xDrive 35 i N55 B30 A | 225 kW / 306 HP |
| BMW | X5 | E70 | 2006-2013 | xDrive 48 i N62 B48 B | 261 kW / 355 HP |
| BMW | X5 | E70 | 2006-2013 | xDrive 50 i N63 B44 A | 300 kW / 408 HP |
| BMW | X5 | G05, F95 | 2018-2026 | M S63 B44 B | 441 kW / 600 HP |
| BMW | X5 | G05, F95 | 2018-2026 | M Competition S63 B44 B | 460 kW / 625 HP |
| BMW | X6 | E71, E72 | 2007-2014 | M S63 B44 A | 408 kW / 555 HP |
| BMW | X6 | E71, E72 | 2007-2014 | xDrive 35 i N54 B30 A; N55 B30 A | 225 kW / 306 HP |
Fitment Notes
- Always match vehicle details before ordering. Verify VIN/engine.
Compatibility Verification Notes
- Confirm compatibility using VIN, engine code, chassis / platform, OE reference and original part comparison before ordering.
- Match the supplied fitment details to your vehicle, including model, year range and any listed engine or chassis information.
- Fitment data may vary by production date, market, import history and engine variant.
- This listing is for part identification and compatibility checking only. Installation must be carried out according to the vehicle manufacturer's service information by a suitably qualified person.
Common Questions
Will the Cap Expansion Tank fit my BMW 2 Coupe?
This part (431420) is listed for the fitments shown on this page. Confirm by matching the fitment details. Verify VIN/engine.
How do I confirm fitment if there are multiple variants?
Compare the supplied fitment details, original part details and any listed variant information before ordering. Verify VIN/engine.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
4.25 stars
Format: Kindle
Vale is an 8 month pregnant omega working as a waitress at a strip club and a cam girl. She starts to get very creepy vibes from a regular at the club, and her baby daddy ghosted her. She has had an online relationship with a man named Bishop through her cam girl status. One night, bishop was paying to watch her sleep and ansthe creepy regular Andrew break in and watch her sleep he tells vale to come to him at his business now. She flees and finds herself at a large security company with some.hot of alphas who are there to help her. This imegaverse is a little different than I have read, but I am thoroughly enjoying it. Vale is not a traditional omega she was raised by a single beta mom, and the alphas are not normal alphas they have never really loved pack life. But they are ruthless mercenaries. They need her, and she needs them. I love the aspect of the stalker and now the plot twists at the end, so so good. Sometimes, it seemed a little slow and stale mated, but since this a duet, I think It was just her starting to have Vale get to know her alpha suitors. Cliffhanger for sure with this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2024
★★★★★ 5
That ending 😫
Format: Kindle
I fell into a false sense of security and really thought this was gearing towards a happy ending. Then I realized there’s no work they don’t punish Andrew. I really liked Vale’s character. I don’t normally read books with pregnancy but going into this knowing she was pregnant made it more enjoyable for me.
I loved Bishops devotion to her and her happiness. I also loved that Holt and Mercy couldn’t fight their attraction to her. I love scent matches so very much. I’m so curious to see how this duet will end up. And I need to pay more attention and notice that a book I’m starting is a duet to begin with lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2025
★★★★★ 5
oh wow
Format: Kindle
I just knew there was something about Cooper! I’m wondering if he’s about to be included but damn I’m glad he’s at least not a rapist and creepy guy, he just got called on assignment and had to go! This should be interesting! She’s gonna run and then what’s his face is gonna grab her. I’m worried! Wow that was a great book and cliffhanger! Loving this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
★★★★★ 5
ABSOLUTELY A MUST for Omegaverse Girls!!!
I ABSOLUTELY LOVE Jillian West and her books!!! I’m so happy I already bought book two and now I have to buy the others for the Assurance Security series!!
Not gonna lie Val kind of annoyed me at the beginning but she grew on me!! Her men are chef’s kisses!!! Holt annoys me some but I can let it slide. I already bought part two so I’m going to be reading that in between work phone calls!!!! DON’T TELL MY BOSS 😂😂😂😂
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
★★★★★ 4
Baby bumps and bodyguards
Format: Kindle
Dark, emotional, and unexpectedly tender, Not Ready is an omegaverse romance that delivers found family feels, fierce protectiveness, and a very pregnant heroine who refuses to break. Vale’s on the run from a stalker, but lands in the arms of three private security alphas, cue the swoony tension, fake marriage twist, and slow-burn heat.
It’s a little gritty, a little soft, and a whole lot addictive. If you love protective alphas, high stakes, and heroines with quiet strength, this one’s a must-read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025