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🛠️ Upgrade your ride’s breathability—because your engine deserves the best!
The Bosch S9404 Car Air Filter delivers superior engine protection by precisely filtering out harmful particles while resisting moisture and heat. Designed for a perfect vehicle-specific fit, it prevents air leaks and maintains optimal airflow with a durable flat panel structure. Tested to international standards and backed by Bosch’s renowned quality, this filter ensures your engine runs smoother, lasts longer, and performs at its peak under all conditions.








| ASIN | B0039BOSIM |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 2,374 in Automotive ( See Top 100 in Automotive ) 1 in Car Air Engine Air Filters |
| Brand | Bosch |
| Brand Name | Bosch |
| Country Of Origin | Germany |
| Customer Reviews | 4.8 out of 5 stars 2,845 Reviews |
| Fit Type | Vehicle Specific Fit |
| Fit type | Vehicle Specific Fit |
| Included Components | No |
| Item Dimensions L x W x H | 34L x 13W x 7H centimetres |
| Item Shape | Rectangular |
| Item Type Name | Bosch 1987429404 Air-Filter Insert |
| Item Weight | 0.37 Grams |
| Manufacturer | Bosch |
| Manufacturer Part Number | 1987429404 |
| Manufacturer Warranty Description | WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim. |
| Model Number | 1987429404 |
| Number of items | 1 |
| OEM Equivalent Part Number | 1K0129607D, 1K0129620D, 1KD129620A, L1KD129620A, V700007179 |
| OEM part number | 1K0129607D, 1K0129620D, 1KD129620A, L1KD129620A, V700007179 |
| Product Grade | Performance Part |
| Product dimensions | 34L x 13W x 7H centimetres |
| Product grade | Performance Part |
| Unit Count | 1.0 count |
K**H
Good for Passat B6
Good quality. Fitted easily on 2.0 TDI 110
P**A
DIY home servicing with quality products
Good quality item at a great price
Z**N
Excellent quality filter
The usual Bosch quality and does exactly what it needs to do. Comes packaged well and is super easy to install in the cars air filter box. After replacing with this the air intake is able to breath better leading to restored performance and better engine health. Well worth it for the price, I would highly recommend.
L**E
Perfect fit
Fits my car exactly as expected and was simple to install. The quality feels solid, and I noticed smoother performance straight after replacing the old filter. Great Bosch reliability
P**E
Easy To Fit Yourself Air Filter
Saved myself a small fortune by easily changing the dirty filter with this replacement myself.
A**I
Good product bad delivery box and filter box wet
The product is ok but was left in the rain and is a lital bet wet
D**O
Breath more easily
Engine breaths again great price
A**R
Air filter
Good product excellent delivery time value for money
F**K
Bra kvalitet
Passar perfekt till WV Tiguan 1.4 - 2014
7**7
Filter fit perfectly
Very great quality filters that l recommend everyone to buy one
S**M
good products
good products
G**R
Una garanzia per il motore. Qualità Bosch indiscutibile!
Ho scelto questo filtro aria Bosch S9404 per il tagliando della mia Seat Leon 1P e, come sempre con questo marchio, la soddisfazione è massima. Il filtro aria è il "polmone" dell'auto e risparmiare pochi euro su sottomarche non ha senso quando la qualità Bosch è così accessibile. La trama della carta filtrante è fitta e robusta. Trattiene perfettamente polvere, polline e impurità, garantendo che nel motore entri solo aria pulita, a tutto vantaggio delle prestazioni e della durata del debimetro. Una caratteristica fondamentale di questo modello è la resistenza all'umidità; anche in giornate di pioggia intensa, il filtro non si imbeve e non perde la sua forma, mantenendo un flusso d'aria costante. Si inserisce nell'alloggiamento del filtro aria (airbox) con una precisione millimetrica. La guarnizione perimetrale in gomma sigilla perfettamente, evitando che l'aria "sporca" passi dai lati. Trattandosi di un ricambio compatibile al 100% con le specifiche originali, la sostituzione è un'operazione da 5 minuti che chiunque abbia un minimo di manualità può fare da solo. Bosch non delude mai. Se volete che il vostro motore respiri bene e mantenere i consumi sotto controllo, questo filtro è la scelta sicura.
O**Y
Aanraden
Past op seat alhambra 2020 Diesel 150pk
Trustpilot
2 weeks ago
2 weeks ago