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Details
| Specification | Value |
|---|---|
| Brand | GATES |
| MPN | th704k1 |
| Opening Temperature [°C] | 87 °C |
| Opening Temperature [°C] | 83 °C |
OE/OEM numbers (4)
Search by this OE number to find compatible parts
- VW—03C 121 026 AS
- SEAT / SKODA / VW—03C 121 026 M
- VW—03C 121 111 AE
- SEAT—03C 121 111 M
Where this part fits
Original-fit position for OE 03C121111M. The red ring marks where this part installs on the vehicle.
What's in the kit
This kit ships with 2 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | TH42383G1 | Thermostat, coolant
| 1 |
| 2 | TH42687G1 | Thermostat, coolant
| 1 |
About this product
The GATES Thermostat Coolant (TH704K1) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Opening Temperature [°C]: 87 °C, Opening Temperature [°C]: 83 °C, Housing Type: 0, Supplementary Article/Supplementary Info: 98. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit SEAT, SKODA, 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: 03C 121 026 AS, 03C 121 026 M, 03C 121 111 AE, 03C 121 111 M and 15 more. Matching these numbers confirms a like-for-like replacement with no loss of function. GATES 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About GATES
Gates Corporation, founded in 1911 in Denver, Colorado, USA, is a world leader in power transmission belts and fluid transfer solutions. Gates specialises in timing belts, timing belt kits, serpentine belts, coolant hoses, and tensioner assemblies. As an OE supplier to virtually every major automotive manufacturer, Gates products are engineered to meet or exceed original specifications. With advanced rubber compound technology and precision manufacturing, Gates belts and hoses deliver dependable performance and are the first choice of professional mechanics globally.
Suitable cars
Equivalent products (15)
Thermostat Coolant GATES TH704K1 — compatible car models
| Car models | SEAT: CORDOBA (6L2), IBIZA III (6L1), IBIZA IV (6J5, 6P1), IBIZA IV SC (6J1, 6P5), IBIZA IV ST (6J8, 6P8), TOLEDO IV (KG3); SKODA: FABIA II (542), FABIA II Combi (545), RAPID (NH3, NK3, NK6), RAPID Spaceback (NH1), ROOMSTER (5J7); VW: JETTA IV (162, 163, AV3, AV2), POLO IV (9N, 9A), POLO V (6R1, 6C1), POLO VIVO Hatchback (6S1, 6S3), POLO VIVO Hatchback Van (6S3), POLO VIVO Saloon (6S2, 6S4), POLO V Saloon (602, 604, 612, 614) |
|---|---|
| Engines | 1.6 16V; 1.6; 1.4 (6R1); 1.4; 1.4 Xpress |
| Year of manufacture | 2001-2022 |
| Manufacturer article number (MPN) | TH704K1 |
| OE part numbers | 03C 121 026 AS, 03C 121 026 M, 03C 121 111 AE, 03C 121 111 M |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
GATES th704k1 . Housing Type: 0. Opening Temperature [°C]: 83 °C. Opening Temperature [°C]: 87 °C. Supplementary Article/Supplementary Info: 98
- 1x Thermostat Coolant
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 Coolant compatible with my car?
This Thermostat Coolant fits 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 GATES Thermostat Coolant have?
This GATES Thermostat Coolant has the following specifications: Opening Temperature [°C]: 87 °C; Opening Temperature [°C]: 83 °C; Housing Type: 0; Supplementary Article/Supplementary Info: 98. Check the full specifications table above for complete details.
What OE part numbers does this Thermostat Coolant replace?
This Thermostat Coolant replaces OE part numbers: 03C 121 026 AS, 03C 121 026 M, 03C 121 111 AE, 03C 121 111 M. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Thermostat Coolant cost?
This GATES Thermostat Coolant is available for £63.99. Thermostat Coolant prices vary depending on brand, specifications, and vehicle compatibility. GATES 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 Coolant?
Symptoms include engine overheating, heater not producing warm air, temperature gauge fluctuations, or coolant leaks near the thermostat housing.
What tools do I need to replace a Thermostat Coolant?
Tools needed: hose clamp pliers, 8-10mm socket, torque wrench, drain pan, new coolant. Difficulty: Moderate DIY. Safety warning: Never open the cooling system on a warm or hot engine -- coolant is under pressure and causes scalding. Always use the correct coolant specification to avoid corrosion with aluminium engine components.
Can I use this part as a replacement for OE 03C 121 026 AS?
Yes, this GATES Thermostat Coolant is a direct replacement for OE part number 03C 121 026 AS. 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 GATES TH704K1 the same as the GATES TH00182G1?
No, while both are Thermostat Coolant parts, they are different products. The GATES TH704K1 has Opening Temperature [°C]: 87 °C, Opening Temperature [°C]: 83 °C, Housing Type: 0. The GATES TH00182G1 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.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
