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Details
| Specification | Value |
|---|---|
| Brand | CALORSTAT by Vernet |
| MPN | ls140428 |
| Category | O2 Sensor |
| Length [mm] | 400 mm |
OE numbers (31)
Search by this OE number to find compatible parts
- FORDโ1123897
- FORDโ1619640
- FORDโ1673837
- FORDโ1743702
- FORDโ1S7F9F472AB
- FORDโ3S4A9F472B1A
- FORDโ3S4Z9F472BA
- FORDโ5L8A9F472A2A
- FORDโ5L8A9F472B2A
- FORD / MERCURYโ5L8Z9F472AA
- FORDโ5L8Z9F472BA
- FORDโ7T4A9F472A1A
- FORD / LINCOLN / MERCURYโ7T4Z9F472A
- FORDโAE819F472AA
- FORDโAE819G444AC
- FORDโAE819G444BB
- FORDโAE819G444BC
- FORDโAE8Z9F472A
- FORDโAE8Z9F472B
- FORDโAE8Z9G444B
- FORDโAE8Z9G444C
- MAZDAโCY0118861
- MAZDAโEFTT18861
- FORDโF7VZ9F472AA
- MAZDAโL3H518861
- ASTON MARTINโXC2F9F472AA
- FORDโXL8Z9F472AA
- FORDโXL8Z9F472BA
- MAZDAโZZ0018861
- MAZDAโZZC318861
- MAZDAโZZD018861
Where this part fits
Original-fit position for OE 1S7F9F472AB. The red ring marks where this part installs on the vehicle.

About this product
Sourced from CALORSTAT by Vernet, this o2 sensor (LS140428) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications โ Length [mm]: 400 mm, Number of connectors: Copper โ are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit FORD, MAZDA models. All compatibility data is cross-checked against the TecDoc database โ select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 107685, 1123897, 1619640, 1673837 and 34 more. Matching these numbers confirms a like-for-like replacement with no loss of function. CALORSTAT by Vernet 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (7)
O2 Sensor CALORSTAT by Vernet LS140428 โ compatible car models
| Car models | FORD: B-MAX (JK), B-MAX Van (JK), FIESTA Saloon, FIESTA VI (CB1, CCN), FIESTA VI Van, KA+ III Saloon (TK, FK), KA+ III (UK, FK), MONDEO III (B5Y), MONDEO III Saloon (B4Y), MONDEO III Turnier (BWY); MAZDA: CX-9 (TB), TRIBUTE (EP) |
|---|---|
| Engines | 1.4; 1.6; 1.25; 1.2 (TK); 1.2; 1.8 16V; 3.7; 2.3 AWD (EP3W) |
| Year of manufacture | 2000-2017 |
| Manufacturer article number (MPN) | LS140428 |
| OE part numbers | 1123897, 1619640, 1673837, 1743702, 1S7F9F472AB, 3S4A9F472B1A, 3S4Z9F472BA, 5L8A9F472A2A, 5L8A9F472B2A, 5L8Z9F472AA, 5L8Z9F472BA, 7T4A9F472A1A, 7T4Z9F472A, AE819F472AA, AE819G444AC, AE819G444BB, AE819G444BC, AE8Z9F472A, AE8Z9F472B, AE8Z9G444B (+11 more) |
Compatibility check
Loading vehicle dataโฆ
Please wait while we load vehicle compatibility information.Description and what's included
CALORSTAT by Vernet ls140428 O2 Sensor. Length [mm]: 400 mm. Number of connectors: 4
- 1x O2 Sensor
Shipping, returns, warranty
Free UK delivery on orders over ยฃ99.00. Tracked standard shipping.
- Standard delivery: 5โ9 business days
- Order before 5pm โ 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 FORD, MAZDA 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 CALORSTAT by Vernet O2 Sensor have?
This CALORSTAT by Vernet O2 Sensor has the following specifications: Length [mm]: 400 mm; Number of connectors: 4. 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: 1123897, 1619640, 1673837, 1743702, 1S7F9F472AB, 3S4A9F472B1A, 3S4Z9F472BA, 5L8A9F472A2A and 23 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a O2 Sensor cost?
This CALORSTAT by Vernet O2 Sensor is available for ยฃ53.99. O2 Sensor prices vary depending on brand, specifications, and vehicle compatibility. CALORSTAT by Vernet 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 1123897?
Yes, this CALORSTAT by Vernet O2 Sensor is a direct replacement for OE part number 1123897. 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.