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CP247
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BrandTOPRAN
MPN115 903
OE refs4
SKU0301-115 903

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Details

SpecificationValue
BrandTOPRAN
Fitting PositionRight

OE numbers (4)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 04L121131E. The red ring marks where this part installs on the vehicle.

Coolant connection — Golf Golf A7 (Typ 5G) (2012–2021) — Coolant pump Coolant regulator Coolant connection
Golf Golf A7 (Typ 5G) (2012–2021) · Coolant pump Coolant regulator Coolant connectionPosition 10

About this product

The TOPRAN Coolant Flange (115 903) 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: Fitting Position: Right, Material: 112, Supplementary Article/Supplementary Info: 35. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI, 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: 04L 121 131AA, 04L 121 131AB, 04L 121 131E, 04L 121 131J and 34 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 with tracked delivery and a 14-day money-back guarantee with 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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BSGBSG 90-126-064
BTAPBVE913-100
CAUTEX760713
DIAMAXAD06045
FARE-CO14830
FARE-MX14830
FARE-RCH14830
FARE SA14830
FIRST LINEFTS1153
hajus Autoteile1211531
MAXGEAR18-0814
Metalcaucho36058
NAPANTH1595
ORIGINAL IMPERIUM90719
OSSCA35213
OSSCA51499
PATRONP29-0070
PLYOMP760713
SERCK AUTOMOTIVECCH0118
STCT436058
SWAG33 10 4344
TRICLO462396
UNIGOM341877
VAICOV10-6548
WILMINK GROUPWG2193617
WILMINK GROUPWG2230657

Coolant Flange TOPRAN 115 903compatible car models

Car modelsAUDI: A1 (8X1, 8XK), A1 Sportback (8XA, 8XF), A3 (8V1, 8VK), A3 Limousine (8VS, 8VM), A3 Sportback (8VA, 8VF), Q2 (GAB, GAG), Q3 (8UB, 8UG), Q3 (F3B), Q3 Sportback (F3N), TT (FV3, FVP) (+1 more); SEAT: ALHAMBRA (710, 711), ARONA (KJ7, KJP), ATECA (KH7, KHP), IBIZA V (KJ1, KJG), LEON (5F1), LEON (KL1, KLG), LEON ST (5F8), TARRACO (KN2); SKODA: KAMIQ (NW4), KAROQ (NU7, ND7), KODIAQ II (PS7), KODIAQ I (NS6, NS7, NV7), OCTAVIA III (5E3, NL3, NR3), OCTAVIA III Combi (5E5, 5E6), RAPID (NH3, NK3, NK6), SCALA (NW1), SUPERB III (3V3), SUPERB III Estate (3V5) (+1 more)
Engines1.6 TDI; 2.0 TDI; 35 TDI; 2.0 RS Bi-TDI 4x4; 1.6 SRE
Year of manufacture2009-2024
Manufacturer article number (MPN)115 903
OE part numbers04L 121 131AA, 04L 121 131AB, 04L 121 131E, 04L 121 131J
Compatibility check

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Description and what's included

TOPRAN 115903 . Fitting Position: R. Material: 112. Supplementary Article/Supplementary Info: 35

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

This Coolant Flange fits AUDI, 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 TOPRAN Coolant Flange have?

This TOPRAN Coolant Flange has the following specifications: Fitting Position: R; Material: 112; Supplementary Article/Supplementary Info: 35. 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: 04L 121 131AA, 04L 121 131AB, 04L 121 131E, 04L 121 131J. 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 £8.99. 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 04L 121 131AA?

Yes, this TOPRAN Coolant Flange is a direct replacement for OE part number 04L 121 131AA. 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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