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Details
| Specification | Value |
|---|---|
| Brand | HELLA |
| MPN | 6pa358221-231 |
| Category | O2 Sensor |
| Cable Length [mm] | 310 mm |
| Number of pins | 4 -pin connector |
OE/OEM numbers (5)
Search by this OE number to find compatible parts
- CHEVROLET—12559850
- CHEVROLET—12561776
- CHEVROLET—12562943
- CHEVROLET—12567254
- ISUZU—8972873520
About this product
The HELLA O2 Sensor (6PA 358 221-231) 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: Cable Length [mm]: 310 mm, Number of pins: Copper -pin connector, Oxygen Sensor: Carbon. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit BUICK, CADILLAC, CHEVROLET, CHEVROLET (SGM) and 3 other makes 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: 12559850, 12561776, 12562943, 12567254 and 5 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 from our UK warehouse with a 30-day money-back guarantee and free 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 358 221-231 — compatible car models
| Car models | BUICK: CENTURY Saloon, RENDEZVOUZ; CADILLAC: DEVILLE, ELDORADO Coupe, ESCALADE, SEVILLE; CHEVROLET: ASTRO Bus, ASTRO Extended Cargo Van, ASTRO Extended Passenger Van, ASTRO Standard Cargo Van, ASTRO Standard Passenger Van, ASTRO Van, AVALANCHE, AVALANCHE 1500 Crew Cab Pickup, BLAZER S10, IMPALA Saloon (+13 more); CHEVROLET (SGM): BLAZER (C41) |
|---|---|
| Engines | 3.1; 3.4; 4.6; 5.3; 4.3; 4.8; 4.3 All-wheel Drive |
| Year of manufacture | 1991-2012 |
| Manufacturer article number (MPN) | 6PA 358 221-231 |
| OE part numbers | 12559850, 12561776, 12562943, 12567254, 8972873520 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HELLA 6pa358221-231 O2 Sensor. Cable Length [mm]: 310 mm. Number of pins: 4 -pin connector. Oxygen Sensor: 8
- 1x O2 Sensor
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 O2 Sensor compatible with my car?
This O2 Sensor fits BUICK, CADILLAC, CHEVROLET, CHEVROLET (SGM), GMC and 2 more 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]: 310 mm; Number of pins: 4 -pin connector; Oxygen Sensor: 8. 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: 12559850, 12561776, 12562943, 12567254, 8972873520. 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 £35.99. 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 12559850?
Yes, this HELLA O2 Sensor is a direct replacement for OE part number 12559850. 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 358 221-231 the same as the HELLA 6PA 009 165-681?
No, while both are O2 Sensor parts, they are different products. The HELLA 6PA 358 221-231 has Cable Length [mm]: 310 mm, Number of pins: 4 -pin connector, Oxygen Sensor: 8. 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.
