- 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
.JPG&w=3840&q=75)
Details
| Specification | Value |
|---|---|
| Brand | AIC |
| Fitting Position | Left |
OE numbers (1)
Search by this OE number to find compatible parts
- VAG / VW—030 121 117D
Where this part fits
Original-fit position for OE 030121117D. The red ring marks where this part installs on the vehicle.
About this product
Sourced from AIC, this thermostat housing (50041) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Fitting Position: Left, Supplementary Article/Info 2: 396 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 01446, 030 121 117D, 045035N, 100 121 1028 and 16 more. Matching these numbers confirms a like-for-like replacement with no loss of function. AIC 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.
Thermostat Housing buying guide
Why replace this part?
The thermostat housing holds the thermostat and routes coolant between the engine and radiator. Plastic housings are prone to cracking with heat cycling, causing sudden coolant loss and rapid overheating.
Signs you need a replacement
- Coolant leak at the top of the engine near the thermostat
- rapid coolant loss
- white steam from under the bonnet
- engine temperature swings
- puddles of coolant after the engine warms up
When to replace
No fixed interval — plastic housings typically last 80,000–120,000 miles before cracking. Replace at first sign of leakage.
Suitable cars
Equivalent products (19)
Thermostat Housing AIC 50041 — compatible car models
| Car models | VW: GOLF II (19E, 1G1), JETTA II (19E, 1G2, 165), POLO CLASSIC (86C, 80), POLO Coupe (86C, 80), POLO II (86C, 80) |
|---|---|
| Engines | 1.0; 1.3 |
| Year of manufacture | 1981-1994 |
| Manufacturer article number (MPN) | 50041 |
| OE part numbers | 030 121 117D |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
AIC 50041 Original AIC Quality. Fitting Position: L. Supplementary Article/Info 2: 396
- 1x Thermostat Housing
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 Thermostat Housing compatible with my car?
This Thermostat Housing fits 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 AIC Thermostat Housing have?
This AIC Thermostat Housing has the following specifications: Fitting Position: L; Supplementary Article/Info 2: 396. Check the full specifications table above for complete details.
What OE part numbers does this Thermostat Housing replace?
This Thermostat Housing replaces OE part numbers: 030 121 117D. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Thermostat Housing cost?
This AIC Thermostat Housing is available for £19.99. Thermostat Housing prices vary depending on brand, specifications, and vehicle compatibility. AIC parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Thermostat Housing?
Regular inspection of your 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 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 Thermostat Housing fitted by a professional mechanic.
Can I use this part as a replacement for OE 030 121 117D?
Yes, this AIC Thermostat Housing is a direct replacement for OE part number 030 121 117D. 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.
