No product images available
Specs, fitment data and pricing remain accurate.- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | MEC-DIESEL |
| MPN | e103440 |
| Category | O2 Sensor |
OE numbers (4)
Search by this OE number to find compatible parts
- RENAULT / RENAULT KOREA—77 00 746 375
- RENAULT / RENAULT KOREA—77 00 854 148
- RENAULT / RENAULT KOREA—77 00 862 426
- RENAULT / RENAULT KOREA—77 00 870 318
Where this part fits
Original-fit position for OE 7700870318. The red ring marks where this part installs on the vehicle.
About this product
When o2 sensor performance matters, the MEC-DIESEL E103440 delivers — built to the same dimensional and material standards as the original part it replaces. This part supersedes original equipment references: 0123, 0 258 003 006, 0 258 003 009, 0 258 003 014 and 39 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MEC-DIESEL 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (39)
Show all 39 OE numbers
O2 Sensor MEC-DIESEL E103440 — compatible car models
| Manufacturer article number (MPN) | E103440 |
|---|---|
| OE part numbers | 77 00 746 375, 77 00 854 148, 77 00 862 426, 77 00 870 318 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MEC-DIESEL e103440 O2 Sensor
- 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?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this O2 Sensor fits. All fitment data is verified through TecDoc.
What specifications does this MEC-DIESEL O2 Sensor have?
The package includes the O2 Sensor as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this O2 Sensor replace?
This O2 Sensor replaces OE part numbers: 77 00 746 375, 77 00 854 148, 77 00 862 426, 77 00 870 318. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a O2 Sensor cost?
O2 Sensor prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this MEC-DIESEL O2 Sensor. All parts come with 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 77 00 746 375?
Yes, this MEC-DIESEL O2 Sensor is a direct replacement for OE part number 77 00 746 375. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
