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Details
| Specification | Value |
|---|---|
| Brand | ATE |
| MPN | 03.7858-1932.4 |
| Category | power brake booster |
| Diameter [inch] | 9 Inch |
| Diameter [inch] | 8 Inch |
| Parameter | T55 Tandem |
| Operating Mode | PN |
| Brake System | ATE |
| Article number of recommended accessories | 03.0655-0007.2 |
OE/OEM numbers (12)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—005 430 74 30
- MERCEDES-BENZ—221 430 08 30
- MERCEDES-BENZ—221 430 12 30
- MERCEDES-BENZ—221 430 14 30
- MERCEDES-BENZ—221 430 22 30
- MERCEDES-BENZ—221 430 25 30
- MERCEDES-BENZ—A 005 430 74 30
- MERCEDES-BENZ—A 221 430 08 30
- MERCEDES-BENZ—A 221 430 12 30
- MERCEDES-BENZ—A 221 430 14 30
- MERCEDES-BENZ—A 221 430 22 30
- MERCEDES-BENZ—A 221 430 25 30
Where this part fits
Original-fit position for OE A2214301430. The red ring marks where this part installs on the vehicle.
About this product
The ATE power brake booster (03.7858-1932.4) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Diameter [inch]: Stainless Steel Inch, Diameter [inch]: Carbon Inch, Parameter: T55 Tandem, Operating Mode: PN, Brake System: ATE. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit MERCEDES-BENZ models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 005 430 74 30, 221 430 08 30, 221 430 12 30, 221 430 14 30 and 8 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ATE is a recognised supplier of automotive braking components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About ATE
ATE (Alfred Teves), founded in 1906 in Frankfurt, Germany, is one of the most respected names in braking technology, now part of the Continental Corporation. ATE specialises in brake pads, brake discs, brake calipers, brake fluid, and hydraulic components. As the original equipment supplier to Volkswagen, Audi, BMW, Mercedes-Benz, and Porsche, ATE sets the standard for braking safety. With over a century of braking innovation, ATE parts provide the confidence of OE-quality stopping power in every driving situation.
Suitable cars
No equivalent parts found.
power brake booster ATE 03.7858-1932.4 — compatible car models
| Car models | MERCEDES-BENZ: CLS Shooting Brake (X218), S-CLASS Coupe (C216), S-CLASS (W221, V221) |
|---|---|
| Engines | CLS 250 CDI / BlueTEC / d (218.903, 218.904); CL 500 (216.371); S 280 (221.054) |
| Year of manufacture | 2005-2017 |
| Manufacturer article number (MPN) | 03.7858-1932.4 |
| OE part numbers | 005 430 74 30, 221 430 08 30, 221 430 12 30, 221 430 14 30, 221 430 22 30, 221 430 25 30, A 005 430 74 30, A 221 430 08 30, A 221 430 12 30, A 221 430 14 30, A 221 430 22 30, A 221 430 25 30 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
ATE 03.7858-1932.4 power brake booster. Article number of recommended accessories: 03.0655-0007.2. Brake System: ATE. Diameter [inch]: 8 Inch. Diameter [inch]: 9 Inch. Operating Mode: PN. Parameter: T55 Tandem
- 1x power brake booster
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this power brake booster compatible with my car?
This power brake booster fits MERCEDES-BENZ vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this ATE power brake booster have?
This ATE power brake booster has the following specifications: Diameter [inch]: 9 Inch; Diameter [inch]: 8 Inch; Parameter: T55 Tandem; Operating Mode: PN; Brake System: ATE; Article number of recommended accessories: 03.0655-0007.2. Check the full specifications table above for complete details.
What OE part numbers does this power brake booster replace?
This power brake booster replaces OE part numbers: 005 430 74 30, 221 430 08 30, 221 430 12 30, 221 430 14 30, 221 430 22 30, 221 430 25 30, A 005 430 74 30, A 221 430 08 30 and 4 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a power brake booster cost?
This ATE power brake booster is available for £484.99. Power brake booster prices vary depending on brand, specifications, and vehicle compatibility. ATE parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my power brake booster?
Regular inspection of your power brake booster is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a power brake booster?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the power brake booster fitted by a professional mechanic.
Can I use this part as a replacement for OE 005 430 74 30?
Yes, this ATE power brake booster is a direct replacement for OE part number 005 430 74 30. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the ATE 03.7858-1932.4 the same as the ATE 03.7745-3003.4?
No, while both are power brake booster parts, they are different products. The ATE 03.7858-1932.4 has Diameter [inch]: 9 Inch, Diameter [inch]: 8 Inch, Parameter: T55 Tandem. The ATE 03.7745-3003.4 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
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