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Details
| Specification | Value |
|---|---|
| Brand | AJUSA |
| Fitting Position | Front |
| Thickness [mm] | 4.2 mm |
| Length [mm] | 32.5 mm |
| Width [mm] | 29 mm |
OE numbers (1)
Search by this OE number to find compatible parts
- SEAT—05L121139A
Where this part fits
Original-fit position for OE 05L121139A. The red ring marks where this part installs on the vehicle.
About this product
When gasket thermostat housing performance matters, the AJUSA 28011900 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Fitting Position: Front, Thickness [mm]: Copper, Aluminium mm, Length [mm]: 32, Rubber mm, Width [mm]: 29 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with CUPRA, SEAT, SKODA, VW 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: 05L121139A. Matching these numbers confirms a like-for-like replacement with no loss of function. AJUSA 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
No equivalent parts found.
Gasket Thermostat Housing AJUSA 28011900 — compatible car models
| Car models | CUPRA: FORMENTOR (KM7, KMP), LEON (KL1, KU1, KUG), LEON Sportstourer (KL8, KU8, KUD); SEAT: ATECA (KH7, KHP), LEON (KL1, KLG), LEON Sportstourer (KL8, KLD); SKODA: KAROQ (NU7, ND7), OCTAVIA IV Combi (NX5, PV5), OCTAVIA IV (NX3, NN3, PV3); VW: ARTEON (3H7, 3H8), ARTEON SHOOTING BRAKE (3H9), GOLF VIII (CD1, DA1), GOLF VIII Variant (CG5, DB5), PASSAT B8 (3G2, CB2), PASSAT B8 Variant (3G5, CB5), TOURAN (5T1), TOURAN VAN (5T1), T-ROC (A11, D11) |
|---|---|
| Engines | 2.0 TDI |
| Year of manufacture | 2014-2020 |
| Manufacturer article number (MPN) | 28011900 |
| OE part numbers | 05L121139A |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
AJUSA 28011900 . Fitting Position: V. Length [mm]: 32,5 mm. Thickness [mm]: 4,2 mm. Width [mm]: 29 mm
- 1x Gasket Thermostat Housing
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 4–8 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 Gasket Thermostat Housing compatible with my car?
This Gasket Thermostat Housing fits CUPRA, SEAT, SKODA, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this AJUSA Gasket Thermostat Housing have?
This AJUSA Gasket Thermostat Housing has the following specifications: Fitting Position: V; Thickness [mm]: 4,2 mm; Length [mm]: 32,5 mm; Width [mm]: 29 mm. Check the full specifications table above for complete details.
What OE part numbers does this Gasket Thermostat Housing replace?
This Gasket Thermostat Housing replaces OE part numbers: 05L121139A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Gasket Thermostat Housing cost?
This AJUSA Gasket Thermostat Housing is available for £7.99. Gasket Thermostat Housing prices vary depending on brand, specifications, and vehicle compatibility. AJUSA parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Gasket Thermostat Housing?
Regular inspection of your Gasket Thermostat Housing 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 Gasket Thermostat Housing?
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 Gasket Thermostat Housing fitted by a professional mechanic.
Can I use this part as a replacement for OE 05L121139A?
Yes, this AJUSA Gasket Thermostat Housing is a direct replacement for OE part number 05L121139A. 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 AJUSA 28011900 the same as the AJUSA 00725500?
No, while both are Gasket Thermostat Housing parts, they are different products. The AJUSA 28011900 has Fitting Position: V, Thickness [mm]: 4,2 mm, Length [mm]: 32,5 mm. The AJUSA 00725500 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.
