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Description
Cap Expansion Tank for BMW 1, 2 & 3 - 431421Vehicle Fitment & Part Details The Cap Expansion Tank is listed for the BMW 1 (2006 2011). Pressure: 1. 4 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN engine. Key Details SKU 431421 Component Cap Expansion Tank Specs Pressure: 1. 4 Bar Primary Fitment BMW 1 (2006 2011) Listing Highlights Listed for selected BMW applications shown in the fitment table. Pressure: 1. 4 Bar. Vehicle Fitment Includes 76 supplied
Vehicle Fitment & Part Details
The Cap Expansion Tank is listed for the BMW 1 (2006-2011). Pressure: 1.4 Bar. Confirm compatibility by matching the listed fitment details. Verify VIN/engine.
Key Details
- SKU
- 431421
- Component
- Cap Expansion Tank
- Specs
- Pressure: 1.4 Bar
- Primary Fitment
- BMW 1 (2006-2011)
Listing Highlights
- Listed for selected BMW applications shown in the fitment table.
- Pressure: 1.4 Bar.
Vehicle Fitment
Includes 76 supplied applications covering BMW. An additional 215 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 | 1 | E81 | 2006-2011 | 116 i N45 B16 A | 85 kW / 115 HP |
| BMW | 1 | E81 | 2006-2011 | 118 i N46 B20 B | 95 kW / 129 HP |
| BMW | 1 | E81 | 2006-2011 | 120 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 1 | E81 | 2006-2011 | 120 i N46 B20 B; N46 B20 C | 115 kW / 156 HP |
| BMW | 1 | E81 | 2006-2011 | 130 i N52 B30 A; N52 B30 B; N52 B30 BF | 195 kW / 265 HP |
| BMW | 1 | E87 | 2004-2011 | 116 i N45 B16 A | 85 kW / 115 HP |
| BMW | 1 | E87 | 2004-2011 | 118 i N46 B20 B | 100 kW / 136 HP |
| BMW | 1 | E87 | 2004-2011 | 118 i N46 B20 B | 95 kW / 129 HP |
| BMW | 1 | E87 | 2004-2011 | 120 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 1 | E87 | 2004-2011 | 120 i N46 B20 A; N46 B20 B; N46 B20 BD; N46 B20 C; N46 B20 CC | 115 kW / 156 HP |
| BMW | 1 | E87 | 2004-2011 | 120 i N46 B20 B; N46 B20 BD; N46 B20 C; N46 B20 CC | 110 kW / 150 HP |
| BMW | 1 | E87 | 2004-2011 | 130 i N52 B30 A; N52 B30 AF; N52 B30 BF | 195 kW / 265 HP |
| BMW | 1 | F20 | 2011-2019 | 116 i N13 B16 A | 100 kW / 136 HP |
| BMW | 1 | F20 | 2011-2019 | 118 i B38 B15 A | 100 kW / 136 HP |
| BMW | 1 | F20 | 2011-2019 | 118 i N13 B16 A | 100 kW / 136 HP |
| BMW | 1 | F20 | 2011-2019 | 118 i N13 B16 A | 125 kW / 170 HP |
| BMW | 1 | F20 | 2011-2019 | 120 d B47 D20 A | 140 kW / 190 HP |
| BMW | 1 | F20 | 2011-2019 | 120 d N47 D20 C | 135 kW / 184 HP |
| BMW | 1 | F20 | 2011-2019 | 120 i B48 B20 A | 135 kW / 184 HP |
| BMW | 1 | F20 | 2011-2019 | 120 i N13 B16 A | 130 kW / 177 HP |
| BMW | 1 | F20 | 2011-2019 | 125 i B48 B20 B | 165 kW / 224 HP |
| BMW | 1 | F20 | 2011-2019 | 125 i N20 B20 A | 160 kW / 218 HP |
| BMW | 1 | F20 | 2011-2019 | M 135 i N55 B30 A | 235 kW / 320 HP |
| BMW | 1 | F20 | 2011-2019 | M 135 i N55 B30 A | 240 kW / 326 HP |
| BMW | 1 | F20 | 2011-2019 | M 140 i B58 B30 A | 250 kW / 340 HP |
| BMW | 1 | F21 | 2011-2025 | 116 i N13 B16 A | 100 kW / 136 HP |
| BMW | 1 | F21 | 2011-2025 | 118 i B38 B15 A | 100 kW / 136 HP |
| BMW | 1 | F21 | 2011-2025 | 118 i N13 B16 A | 100 kW / 136 HP |
| BMW | 1 | F21 | 2011-2025 | 118 i N13 B16 A | 125 kW / 170 HP |
| BMW | 1 | F21 | 2011-2025 | 120 i N13 B16 A | 130 kW / 177 HP |
| BMW | 1 | F21 | 2011-2025 | 125 i N20 B20 A | 160 kW / 218 HP |
| BMW | 1 | F21 | 2011-2025 | M 135 i N55 B30 A | 235 kW / 320 HP |
| BMW | 1 | F21 | 2011-2025 | M 135 i N55 B30 A | 240 kW / 326 HP |
| BMW | 1 Convertible | E88 | 2007-2013 | 120 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 1 Convertible | E88 | 2007-2013 | 120 i N46 B20 B; N46 B20 C; N46 B20 E | 115 kW / 156 HP |
| BMW | 1 Convertible | E88 | 2007-2013 | 125 i N52 B30 A; N52 B30 B; N52 B30 BF | 160 kW / 218 HP |
| BMW | 1 Convertible | E88 | 2007-2013 | 135 i N54 B30 A; N55 B30 A | 225 kW / 306 HP |
| BMW | 1 Coupe | E82 | 2007-2013 | 120 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 1 Coupe | E82 | 2007-2013 | 125 i N52 B30 A; N52 B30 B; N52 B30 BF | 160 kW / 218 HP |
| BMW | 1 Coupe | E82 | 2007-2013 | 135 i N54 B30 A; N55 B30 A | 225 kW / 306 HP |
| BMW | 1 Coupe | E82 | 2007-2013 | M N54 B30 A | 250 kW / 340 HP |
| BMW | 2 Convertible | F23 | 2014-2025 | 220 i B48 B20 A | 135 kW / 184 HP |
| BMW | 2 Convertible | F23 | 2014-2025 | 220 i N20 B20 A; N20 B20 B | 135 kW / 184 HP |
| BMW | 2 Convertible | F23 | 2014-2025 | 228 i N20 B20 A | 180 kW / 245 HP |
| BMW | 2 Convertible | F23 | 2014-2025 | 230 i B46 B20 B; B48 B20 B | 185 kW / 252 HP |
| BMW | 2 Convertible | F23 | 2014-2025 | M 235 i N55 B30 A | 240 kW / 326 HP |
| BMW | 2 Convertible | F23 | 2014-2025 | M 240 i B58 B30 A | 250 kW / 340 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | 220 d B47 D20 A | 140 kW / 190 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | 220 d N47 D20 C | 135 kW / 184 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | 220 i B48 B20 A | 135 kW / 184 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | 220 i N20 B20 A; N20 B20 B | 135 kW / 184 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | 228 i N20 B20 A; N26 B20 A | 180 kW / 245 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | 230 i B46 B20 B; B48 B20 B | 185 kW / 252 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | M 235 i N55 B30 A | 240 kW / 326 HP |
| BMW | 2 Coupe | F22, F87 | 2012-2025 | M2 N55 B30 A | 272 kW / 370 HP |
| BMW | 2 Coupe | G42, G87 | 2021-2025 | 220 d Mild-Hybrid B47 D20 B | 140 kW / 190 HP |
| BMW | 3 | E90 | 2004-2011 | 320 d M47 D20 204D4 | 110 kW / 150 HP |
| BMW | 3 | E90 | 2004-2011 | 320 d M47 D20 204D4 | 115 kW / 156 HP |
| BMW | 3 | E90 | 2004-2011 | 320 d N47 D20 A; N47 D20 C | 130 kW / 177 HP |
| BMW | 3 | E90 | 2004-2011 | 320 d N47 D20 C | 125 kW / 170 HP |
| BMW | 3 | E90 | 2004-2011 | 320 d N47 D20 C | 135 kW / 184 HP |
| BMW | 3 | E90 | 2004-2011 | 320 i N43 B20 A | 125 kW / 170 HP |
| BMW | 3 | E90 | 2004-2011 | 320 i N46 B20 B; N46 B20 BD; N46 B20 C; N46 B20 CB | 110 kW / 150 HP |
| BMW | 3 | E90 | 2004-2011 | 320 i N46 B20 B; N46 B20 C; N46 B20 CC; N46 B20 CD; N46 B20 E | 115 kW / 156 HP |
| BMW | 3 | E90 | 2004-2011 | 323 i N52 B25 A; N52 B25 B; N52 B25 BE; N52 B25 BF | 130 kW / 177 HP |
| BMW | 3 | E90 | 2004-2011 | 323 i N52 B25 A; N52 B25 BF | 140 kW / 190 HP |
| BMW | 3 | E90 | 2004-2011 | 325 i N52 B25 A; N52 B25 B; N52 B25 BF | 160 kW / 218 HP |
| BMW | 3 | E90 | 2004-2011 | 325 i N53 B30 A | 160 kW / 218 HP |
| BMW | 3 | E90 | 2004-2011 | 330 d M57 D30 306D3 | 170 kW / 231 HP |
| BMW | 3 | E90 | 2004-2011 | 330 d N57 D30 A | 180 kW / 245 HP |
| BMW | 3 | E90 | 2004-2011 | 330 i N52 B30 A; N52 B30 BF | 190 kW / 258 HP |
| BMW | 3 | E90 | 2004-2011 | 330 i N53 B30 A | 200 kW / 272 HP |
| BMW | 3 | E90 | 2004-2011 | 335 i N54 B30 A; N55 B30 A | 225 kW / 306 HP |
| BMW | 3 | F30, F80 | 2011-2018 | 316 i N13 B16 A | 100 kW / 136 HP |
| BMW | 3 | F30, F80 | 2011-2018 | 318 i B38 B15 A | 100 kW / 136 HP |
| BMW | 3 | F30, F80 | 2011-2018 | 320 d B47 D20 A | 140 kW / 190 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 1?
This part (431421) 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
4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
amazing
Format: Kindle
Knot the Bride was a fantastic read! The characters were all amazing and well-developed. It was easy to like them all. Sophia, Luca, Nick, and Gavin were all perfect for each other. It was such a charming story that had me hooked the entire time. I did wish there were POVs from Luca, Nick, and Gavin but it was still an amazing book without it.
I am excited to read the next book in the Willowside Omegaverse series! This is definitely a must-read for fans of omegaverse romance!.
I received a free copy of this book and am voluntarily leaving a review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2025
★★★★★ 3
3 Star Read,
Format: Kindle
This book wasn't bad, but wasn't my cup of tea. It's highly disappointing because the storyline is so original. There is no real conflict or resolution, so the entire thing feels flat.
As a lover of omegaverse books, I know there is a ton of variety out there, and ov is really up to the author. But this one is weird. Omegas have multiple scent glands all over their bodies and go into week long heats every month. Alphas have knots in the middle of their shaft instead of the base, and the knot doesn't always swell, no explanation of when or why. It doesn't engage at all when the mouth is in play.
I also didn't enjoy the author's writing style. Each paragraph is only 1 or 2 sentences long, and the entire book reads very stacato. The conversations are stiff and unnatural feeling. Everything is very repetitive, both in word choice and in thought. The same thing is repeated 3 or 4 times over a single page, multiple times over. I ended up doing so much skimming.
The first 50% of the book is all slow burn, and the last 50% is almost straight mediocre spice. This wouldn't have been all bad if the grammar and spelling errors didn't start at the exact same time. Tongue is repeatedly misspelled in the middle of the spice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2024
★★★★★ 5
Cozy Omegaverse
Format: Kindle
This is the true definition of Cozy Omegaverse. LA wedding coordinator meets her pack at the location for a couple’s destination wedding. Low angst because they are scent matched high heat with heats and knots. Everything you love about this genre with very little anxiety. Simply a fun experience to read and a book I will comeback to when I’m in a slump. I simply love reading this book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 4
Cute Omegaverse story
Format: Kindle
3.75 stars and 2 for spice. Adorable Omegaverse story about a wedding planner who has to go to a small town to plan a wedding for a movie star. While there, she meets her pack. This covers her struggles of not living there but trying to keep her relationship going with her 3 Alphas.
It's a quick read and cute, so I recommend it for people who like light-hearted RH stories.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2025
★★★★★ 3
real good
Format: Kindle
This was a solid read for the ABO universe. The characters are great. The smut scenes were well written. And the town is so cute I want to go there. It didn’t have much character development it just felt like I was getting to the characters as they were getting to know each other.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2025
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