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Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| for OE number | 03C 121 142 |
| For Diameter [mm] | 35 mm |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
- AUDI / CUPRA / PORSCHE / SEAT / SKODA / VAG / VW—03C 121 142
Where this part fits
Original-fit position for OE 03C121142. The red ring marks where this part installs on the vehicle.
About this product
Sourced from TOPRAN, this retaining spring coolant flange sealing plug (638 458) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — for OE number: 03C 121 142, Colour: Ceramic, Material: 112, Material: 180, For Diameter [mm]: 35 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 03C 121 142. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN is a recognised supplier of automotive suspension 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 TOPRAN
TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.No equivalent parts found.
Retaining Spring Coolant Flange Sealing Plug TOPRAN 638 458 — compatible car models
| Manufacturer article number (MPN) | 638 458 |
|---|---|
| OE part numbers | 03C 121 142 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 638458 . Colour: 7. For Diameter [mm]: 35 mm. for OE number: 03C 121 142. Material: 112. Material: 180
- 1x Retaining Spring Coolant Flange Sealing Plug
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 Retaining Spring Coolant Flange Sealing Plug 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 Retaining Spring Coolant Flange Sealing Plug fits. All fitment data is verified through TecDoc.
What specifications does this TOPRAN Retaining Spring Coolant Flange Sealing Plug have?
This TOPRAN Retaining Spring Coolant Flange Sealing Plug has the following specifications: for OE number: 03C 121 142; Colour: 7; Material: 112; Material: 180; For Diameter [mm]: 35 mm. Check the full specifications table above for complete details.
What OE part numbers does this Retaining Spring Coolant Flange Sealing Plug replace?
This Retaining Spring Coolant Flange Sealing Plug replaces OE part numbers: 03C 121 142. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Retaining Spring Coolant Flange Sealing Plug cost?
This TOPRAN Retaining Spring Coolant Flange Sealing Plug is available for £1.99. Retaining Spring Coolant Flange Sealing Plug prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Retaining Spring Coolant Flange Sealing Plug?
Regular inspection of your Retaining Spring Coolant Flange Sealing Plug 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 Retaining Spring Coolant Flange Sealing Plug?
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 Retaining Spring Coolant Flange Sealing Plug fitted by a professional mechanic.
Can I use this part as a replacement for OE 03C 121 142?
Yes, this TOPRAN Retaining Spring Coolant Flange Sealing Plug is a direct replacement for OE part number 03C 121 142. 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 TOPRAN 638 458 the same as the TOPRAN 107 319?
No, while both are Retaining Spring Coolant Flange Sealing Plug parts, they are different products. The TOPRAN 638 458 has for OE number: 03C 121 142, Colour: 7, Material: 112. The TOPRAN 107 319 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.
