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Details
| Specification | Value |
|---|---|
| Brand | HELLA |
| MPN | 6pa358221-791 |
| Category | O2 Sensor |
| Cable Length [mm] | 620 mm |
| Number of pins | 5 -pin connector |
OE numbers (2)
Search by this OE number to find compatible parts
- MAZDA—P54A-18-8G1
- MAZDA—PE01-18-8G1A
Where this part fits
Original-fit position for OE P54A188G1.
About this product
Sourced from HELLA, this o2 sensor (6PA 358 221-791) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Cable Length [mm]: 620 mm, Number of pins: Rubber -pin connector, Oxygen Sensor: Aluminium — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit MAZDA 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: 24369, 358 221-791, 358221791, 6PA 358 221-791 and 2 more. Matching these numbers confirms a like-for-like replacement with no loss of function. HELLA 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.
About HELLA
HELLA, founded in 1899 in Lippstadt, Germany, is a global automotive lighting and electronics specialist now operating as FORVIA HELLA. HELLA specialises in headlamps, rear lights, signal lighting, sensors, actuators, and electronic control units. As an OE supplier to virtually all major car manufacturers, HELLA products represent the cutting edge of automotive lighting and electronic technology. With 125+ years of innovation in vehicle illumination and electronics, HELLA is the definitive choice for high-quality lighting and electronic component replacements.
Suitable cars
Equivalent products (4)
O2 Sensor HELLA 6PA 358 221-791 — compatible car models
| Car models | MAZDA: 2 Hatchback (DL, DJ), 3 (BM, BN), 3 Hatchback Van (BM), 3 Saloon (BM, BN), 6 Estate (GJ, GL), 6 Estate Van (GJ), 6 Saloon (GJ, GL), CX-3 (DK), CX-5 (KE, GH), CX-5 (KF) (+1 more) |
|---|---|
| Engines | 1.5; 2.0 (GJEFW); 2.0; 2.0 SKYACTIV-G AWD (DK4W7, DKEAW); SKYACTIV-G AWD (KEN9) |
| Year of manufacture | 2011-2019 |
| Manufacturer article number (MPN) | 6PA 358 221-791 |
| OE part numbers | P54A-18-8G1, PE01-18-8G1A |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HELLA 6pa358221-791 O2 Sensor. Cable Length [mm]: 620 mm. Number of pins: 5 -pin connector. Oxygen Sensor: 2
- 1x O2 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 O2 Sensor compatible with my car?
This O2 Sensor fits MAZDA 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 HELLA O2 Sensor have?
This HELLA O2 Sensor has the following specifications: Cable Length [mm]: 620 mm; Number of pins: 5 -pin connector; Oxygen Sensor: 2. Check the full specifications table above for complete details.
What OE part numbers does this O2 Sensor replace?
This O2 Sensor replaces OE part numbers: P54A-18-8G1, PE01-18-8G1A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a O2 Sensor cost?
This HELLA O2 Sensor is available for £71.99. O2 Sensor prices vary depending on brand, specifications, and vehicle compatibility. HELLA parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my O2 Sensor?
Symptoms include increased fuel consumption, rough idle, failed emissions test, check engine light, or reduced engine performance.
What tools do I need to replace a O2 Sensor?
Tools needed: lambda sensor socket wrench (22mm slotted), penetrating oil (apply 24 hours before removal on vehicles with high mileage or corrosion), oxygen sensor thread chaser, torque wrench (40-55 Nm), OBD-II scanner. Difficulty: Moderate DIY. Safety warning: Only remove on a fully cold exhaust. Apply penetrating oil the day before on older vehicles to avoid breaking the sensor in the bung -- a broken sensor requires professional extraction equipment.
Can I use this part as a replacement for OE P54A-18-8G1?
Yes, this HELLA O2 Sensor is a direct replacement for OE part number P54A-18-8G1. 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 HELLA 6PA 358 221-791 the same as the HELLA 6PA 009 165-681?
No, while both are O2 Sensor parts, they are different products. The HELLA 6PA 358 221-791 has Cable Length [mm]: 620 mm, Number of pins: 5 -pin connector, Oxygen Sensor: 2. The HELLA 6PA 009 165-681 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.
