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Details
| Specification | Value |
|---|---|
| Brand | BREMI |
| Voltage [V] | 12 V |
| Number of pins | 5 -pin connector |
OE numbers (1)
Search by this OE number to find compatible parts
- GENERAL MOTORS—10393948
About this product
When mass air flow sensor performance matters, the BREMI 30257 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Voltage [V]: Zinc V, Housing Type: 50, Number of pins: Rubber -pin connector. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with CADILLAC, CHEVROLET, GMC vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 10393948, 15512, 245-1206, 7450074 and 7 more. Matching these numbers confirms a like-for-like replacement with no loss of function. BREMI is a recognised supplier of automotive replacement 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (10)
Mass Air Flow Sensor BREMI 30257 — compatible car models
| Car models | CADILLAC: CTS, CTS Coupe, CTS Sport Wagon, ESCALADE, ESCALADE Crew Cab Pickup; CHEVROLET: AVALANCHE, SILVERADO 1500, SILVERADO 1500 Crew Cab Pickup, SILVERADO 1500 Extended Cab Pickup, SILVERADO 1500 Standard Cab Pickup, SILVERADO 2500 Crew Cab Pickup, SILVERADO 2500 HD Cab & Chassis, SILVERADO 2500 HD Crew Cab Pickup, SILVERADO 2500 HD Extended Cab Pickup, SILVERADO 2500 HD Standard Cab Pickup (+8 more); GMC: SIERRA 1500 Crew Cab Pickup, SIERRA 1500 Extended Cab Pickup, SIERRA 1500 Standard Cab Pickup, SIERRA 2500 HD Cab & Chassis, SIERRA 2500 HD Crew Cab Pickup, SIERRA 2500 HD Extended Cab Pickup, SIERRA 2500 HD Standard Cab Pickup |
|---|---|
| Engines | 3.0; 6.2 FLEXFUEL; 6.2 FLEX AWD; 5.3 Flex-Fuel AWD; 5.3 AWD; 4.3; 4.8; 6.0; 5.3; 6.0 FLEX; 5.3 Flexfuel |
| Year of manufacture | 2005-2015 |
| Manufacturer article number (MPN) | 30257 |
| OE part numbers | 10393948 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BREMI 30257 . Housing Type: 50. Number of pins: 5 -pin connector. Voltage [V]: 12 V
- 1x Mass Air Flow Sensor
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- 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 Mass Air Flow Sensor compatible with my car?
This Mass Air Flow Sensor fits CADILLAC, CHEVROLET, GMC 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 BREMI Mass Air Flow Sensor have?
This BREMI Mass Air Flow Sensor has the following specifications: Voltage [V]: 12 V; Housing Type: 50; Number of pins: 5 -pin connector. Check the full specifications table above for complete details.
What OE part numbers does this Mass Air Flow Sensor replace?
This Mass Air Flow Sensor replaces OE part numbers: 10393948. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Mass Air Flow Sensor cost?
This BREMI Mass Air Flow Sensor is available for £69.99. Mass Air Flow Sensor prices vary depending on brand, specifications, and vehicle compatibility. BREMI parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Mass Air Flow Sensor?
Signs include a check engine light with mass airflow codes, rough or unstable idle, black smoke and over-fuelling, engine hesitation during acceleration, or difficulty starting. Clean the sensor first — replacement may not always be needed.
What tools do I need to replace a Mass Air Flow Sensor?
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 Mass Air Flow Sensor fitted by a professional mechanic.
Can I use this part as a replacement for OE 10393948?
Yes, this BREMI Mass Air Flow Sensor is a direct replacement for OE part number 10393948. 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 BREMI 30257 the same as the BREMI 30001?
No, while both are Mass Air Flow Sensor parts, they are different products. The BREMI 30257 has Voltage [V]: 12 V, Housing Type: 50, Number of pins: 5 -pin connector. The BREMI 30001 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.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
