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Details
| Specification | Value |
|---|---|
| Brand | BorgWarner (Wahler) |
| Diameter [mm] | 85 mm |
OE numbers (1)
Search by this OE number to find compatible parts
- DAF—166 1256
Where this part fits
Original-fit position for OE 1661256.
About this product
BorgWarner (Wahler) Seal Thermostat (123716) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Diameter [mm]: 85 mm, Shape: Carbon, Material: 27 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 166 1256. Matching these numbers confirms a like-for-like replacement with no loss of function. BorgWarner (Wahler) 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.No equivalent parts found.
Seal Thermostat BorgWarner (Wahler) 123716 — compatible car models
| Manufacturer article number (MPN) | 123716 |
|---|---|
| OE part numbers | 166 1256 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BorgWarner (Wahler) 123716 . Diameter [mm]: 85 mm. Material: 27. Shape: 8
- 1x Seal Thermostat
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 Seal Thermostat 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 Seal Thermostat fits. All fitment data is verified through TecDoc.
What specifications does this BorgWarner (Wahler) Seal Thermostat have?
This BorgWarner (Wahler) Seal Thermostat has the following specifications: Diameter [mm]: 85 mm; Shape: 8; Material: 27. Check the full specifications table above for complete details.
What OE part numbers does this Seal Thermostat replace?
This Seal Thermostat replaces OE part numbers: 166 1256. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Seal Thermostat cost?
This BorgWarner (Wahler) Seal Thermostat is available for £5.99. Seal Thermostat prices vary depending on brand, specifications, and vehicle compatibility. BorgWarner (Wahler) parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Seal Thermostat?
Regular inspection of your Seal Thermostat 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 Seal Thermostat?
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 Seal Thermostat fitted by a professional mechanic.
Can I use this part as a replacement for OE 166 1256?
Yes, this BorgWarner (Wahler) Seal Thermostat is a direct replacement for OE part number 166 1256. 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.
