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CP247
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BrandTOPRAN
MPN107 635
OE refs1
SKU0301-107 635

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SpecificationValue
BrandTOPRAN

OE/OEM numbers (1)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 037121121A. The red ring marks where this part installs on the vehicle.

1998 — Engine › 12110
1998 · Engine › 12110Position 12

About this product

Sourced from TOPRAN, this coolant flange (107 635) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Fitting Position: 73, Material: Plastic, Supplementary Article/Supplementary Info: 98 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit SEAT, 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: 002-60-00549, 00312, 03667, 037 121 121A and 70 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN 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.

Coolant Flange buying guide

Why replace this part?

Coolant outlet flanges and pipe connectors direct coolant flow through the engine circuit. Plastic flanges crack from thermal cycling; metal flanges develop pinhole corrosion. Either causes coolant loss and overheating.

Signs you need a replacement

  • Coolant leak at a pipe junction on the engine
  • white crystalline deposit around a fitting
  • rapid coolant consumption
  • overheating
  • steam under the bonnet

When to replace

Inspect every 60,000–80,000 miles. Plastic flanges are a known weak point — replace proactively during major cooling system work.

Installation difficulty:Moderate — requires basic tools and mechanical knowledge

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

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Coolant Flange TOPRAN 107 635compatible car models

Car modelsSEAT: ALHAMBRA (7V8, 7V9), CORDOBA (6K1, 6K2), IBIZA II (6K1), INCA (6K9), TOLEDO I (1L2); VW: CADDY II MPV (9K9B), GOLF III (1H1), GOLF III Variant (1H5), PASSAT B3/B4 (3A2, 35I), PASSAT B3/B4 Variant (3A5, 35I), POLO III CLASSIC (6V2), SHARAN (7M8, 7M9, 7M6), VENTO (1H2)
Engines1.9 TDI; 1.6 i; 1.9 D; 1.6; 100 1.6
Year of manufacture1988-2010
Manufacturer article number (MPN)107 635
OE part numbers037 121 121A
Compatibility check

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Description and what's included

TOPRAN 107635 . Fitting Position: 73. Material: 6. Supplementary Article/Supplementary Info: 98

What's included:
  • 1x Coolant Flange
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 Coolant Flange compatible with my car?

This Coolant Flange fits SEAT, 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 TOPRAN Coolant Flange have?

This TOPRAN Coolant Flange has the following specifications: Fitting Position: 73; Material: 6; Supplementary Article/Supplementary Info: 98. Check the full specifications table above for complete details.

What OE part numbers does this Coolant Flange replace?

This Coolant Flange replaces OE part numbers: 037 121 121A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Coolant Flange cost?

This TOPRAN Coolant Flange is available for £3.99. Coolant Flange 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 Coolant Flange?

Regular inspection of your Coolant Flange 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 Coolant Flange?

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 Coolant Flange fitted by a professional mechanic.

Can I use this part as a replacement for OE 037 121 121A?

Yes, this TOPRAN Coolant Flange is a direct replacement for OE part number 037 121 121A. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

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