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Details
| Specification | Value |
|---|---|
| Brand | HELLA |
| MPN | 6pa358103-621 |
| Category | O2 Sensor |
| Cable Length [mm] | 270 mm |
| Number of pins | 4 -pin connector |
OE/OEM numbers (45)
Search by this OE number to find compatible parts
- GENERAL MOTORSโ855266
- GENERAL MOTORSโ855270
- GENERAL MOTORSโ88974015
- GENERAL MOTORSโ88974383
- GENERAL MOTORSโ88975491
- TOYOTAโ8946702020
- TOYOTAโ8946702040
- TOYOTAโ8946702070
- TOYOTAโ8946704040
- TOYOTAโ8946704050
- TOYOTAโ8946712010
- TOYOTAโ8946712100
- TOYOTAโ8946712110
- TOYOTAโ8946720030
- LEXUS / TOYOTAโ8946722040
- LEXUS / TOYOTAโ8946722050
- TOYOTAโ8946726020
- TOYOTAโ8946726040
- TOYOTAโ8946728090
- LEXUS / TOYOTAโ8946730020
- LEXUSโ8946730050
- TOYOTAโ8946733030
- TOYOTAโ8946741030
- TOYOTAโ8946741040
- TOYOTAโ8946742020
- TOYOTAโ8946747010
- TOYOTAโ8946748030
- TOYOTAโ8946748140
- TOYOTAโ8946750010
- LEXUS / TOYOTAโ8946750020
- TOYOTAโ8946750050
- TOYOTAโ8946752020
- LEXUS / TOYOTAโ8946752060
- TOYOTAโ8946752070
- TOYOTAโ8946752090
- TOYOTAโ8946752170
- LEXUS / TOYOTAโ8946753040
- LEXUS / TOYOTAโ8946753050
- LEXUS / TOYOTAโ8946760030
- TOYOTAโ8946768020
- TOYOTAโ8946774040
- ISUZUโ8980898250
- ISUZUโ8980898260
- GENERAL MOTORSโ98089825
- GENERAL MOTORSโ98089826
Where this part fits
Original-fit position for OE 855270. The red ring marks where this part installs on the vehicle.

About this product
When o2 sensor performance matters, the HELLA 6PA 358 103-621 delivers โ built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Cable Length [mm]: 270 mm, Number of pins: Copper -pin connector, Oxygen Sensor: Aluminium. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with DAIHATSU, LEXUS, TOYOTA 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: 358 103-621, 358103621, 6PA 358 103-621, 855266 and 44 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 โ 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 โ 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 โ 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 (3)
O2 Sensor HELLA 6PA 358 103-621 โ compatible car models
| Car models | DAIHATSU: CHARADE VIII; LEXUS: CT (ZWA10), GS (L1), IS C (GSE2), IS II (E2), IS III (E3), LS (F4), LX (J2), NX (Z1); TOYOTA: AURIS (E15), AURIS (E18), AURIS Estate (E18), AVENSIS VERSO (M2), CAMRY (V2), COROLLA Saloon (E15), COROLLA Saloon (E18, ZRE1), MATRIX (E14), PRIUS Liftback (W2), PRIUS PLUS VAN (W4) (+8 more) |
|---|---|
| Engines | 1.33 16V; 200h (ZWA10, ZWA10R); 250 (GRL11, GRL11R); 250 (GSE20); 250 AWD (GSE25); 250 (GSE30, GSE30R); 460 (USF40); 570 (URJ201); 200 AWD (ZGZ15, AYZ15, AGZ15); 1.33 Dual-VVTi (NRE150, NRE150R); 1.8 Hybrid (ZWE186, ZWE186R); 1.8 Hybrid (ZWE186, ZWE186R, ZWE186H); 2.0 VVT-i (ACM20, ACM20R); 3.0 24V (MCV20, MCV20, MCV10); 1.3 (NRE150) (+12 more) |
| Year of manufacture | 1996-2021 |
| Manufacturer article number (MPN) | 6PA 358 103-621 |
| OE part numbers | 855266, 855270, 88974015, 88974383, 88975491, 8946702020, 8946702040, 8946702070, 8946704040, 8946704050, 8946712010, 8946712100, 8946712110, 8946720030, 8946722040, 8946722050, 8946726020, 8946726040, 8946728090, 8946730020 (+25 more) |
Compatibility check
Loading vehicle dataโฆ
Please wait while we load vehicle compatibility information.Description and what's included
HELLA 6pa358103-621 O2 Sensor. Cable Length [mm]: 270 mm. Number of pins: 4 -pin connector. Oxygen Sensor: 2
- 1x O2 Sensor
Shipping, returns, warranty
Free UK delivery on orders over ยฃ99.00. 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 DAIHATSU, LEXUS, TOYOTA vehicles. Use the vehicle selector at the top of the page to check exact compatibility โ 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]: 270 mm; Number of pins: 4 -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: 855266, 855270, 88974015, 88974383, 88975491, 8946702020, 8946702040, 8946702070 and 37 more. 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 ยฃ124.99. 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 855266?
Yes, this HELLA O2 Sensor is a direct replacement for OE part number 855266. 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 358 103-621 the same as the HELLA 6PA 009 165-681?
No, while both are O2 Sensor parts, they are different products. The HELLA 6PA 358 103-621 has Cable Length [mm]: 270 mm, Number of pins: 4 -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.