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Details
| Specification | Value |
|---|---|
| Brand | FA1 |
| MPN | 999-945 |
| Height [mm] | 15 mm |
| Thread Size | M18x1.5 |
OE part numbers
No OEM references found.
About this product
Sourced from FA1, this weld in thread oxygen sensor (999-945) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Height [mm]: EPDM mm, Thread Size: M18x1.5 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: TUG004. Matching these numbers confirms a like-for-like replacement with no loss of function. FA1 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 (1)
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FA1 999-945 . Height [mm]: 15 mm. Thread Size: M18x1.5
- 1x Weld In Thread Oxygen 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 Weld In Thread Oxygen 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 Weld In Thread Oxygen Sensor fits. All fitment data is verified through TecDoc.
What specifications does this FA1 Weld In Thread Oxygen Sensor have?
This FA1 Weld In Thread Oxygen Sensor has the following specifications: Height [mm]: 15 mm; Thread Size: M18x1.5. Check the full specifications table above for complete details.
How much does a Weld In Thread Oxygen Sensor cost?
This FA1 Weld In Thread Oxygen Sensor is available for £6.99. Weld In Thread Oxygen Sensor prices vary depending on brand, specifications, and vehicle compatibility. FA1 parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Weld In Thread Oxygen Sensor?
Regular inspection of your Weld In Thread Oxygen Sensor is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Weld In Thread Oxygen Sensor?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Weld In Thread Oxygen Sensor fitted by a professional mechanic.
Is the FA1 999-945 the same as the FA1 998-802?
No, while both are Weld In Thread Oxygen Sensor parts, they are different products. The FA1 999-945 has Height [mm]: 15 mm, Thread Size: M18x1.5. The FA1 998-802 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.
