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BrandTOPRAN
MPN107 921
OE refs4
SKU0301-107 921

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Details

SpecificationValue
BrandTOPRAN
Fitting PositionTransmission Side

OE/OEM numbers (4)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 0002030131. The red ring marks where this part installs on the vehicle.

PART — Others
OthersPosition main

About this product

TOPRAN Coolant Flange (107 921) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Fitting Position: GS, Fitting Position: 74, Material: Plastic, Supplementary Article/Supplementary Info: 35 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with MERCEDES-BENZ, VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 000 203 01 31, 002-60-03769, 021 121 133C, 021 121 133D and 35 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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Show all 37 OE numbers
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AUTOMEGA301210133021D
BAPMICTOPT1325055
BBR Automotive002-60-03769
BIRTH8375
BOGAPA4252108
CAUTEX952179
CSV electronic partsCBR3201
FARE SA22027
JP GROUP1114500500
MAPCO28868
Metalcaucho30612
METZGER AUTOTEILE4010184
MEYLE100 121 0021
NANFENGNF0048
NRF775055£5.99
ORIGINAL IMPERIUM90300
OSSCA02201
RECOFICIALCBR3201
STCT430612
TRICLO463735
TRUCKTEC AUTOMOTIVE07.19.046
VAICOV10-0418
VEMA460337
VEMAVE8375
vika11210114301
WE PARTS421850063
WILMINK GROUPWG1805618
WILMINK GROUPWG2263397
WXQP320425
WXQP320427

Coolant Flange TOPRAN 107 921compatible car models

Car modelsMERCEDES-BENZ: V-CLASS (638/2); VW: GOLF III (1H1), PASSAT B3/B4 (3A2, 35I), PASSAT B3/B4 Variant (3A5, 35I), SHARAN (7M8, 7M9, 7M6), TRANSPORTER T4 Bus (70B, 70C, 7DB, 7DK, 70J, 70K, 7DC, 7DJ), TRANSPORTER T4 Platform/Chassis (70E, 70L, 70M, 7DE, 7DL, 7D, TRANSPORTER T4 Van (70A, 70H, 7DA, 7DH), VENTO (1H2)
EnginesV 280 (638.244, 638.294); 2.8 VR6; 2.8 VR 6; 2.8
Year of manufacture1988-2010
Manufacturer article number (MPN)107 921
OE part numbers000 203 01 31, 021 121 133C, 021 121 133D, A000 203 01 31
Compatibility check

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Description and what's included

TOPRAN 107921 . Fitting Position: 74. Fitting Position: GS. Material: 6. Supplementary Article/Supplementary Info: 35

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 MERCEDES-BENZ, 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: GS; Fitting Position: 74; Material: 6; 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: 000 203 01 31, 021 121 133C, 021 121 133D, A000 203 01 31. 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 000 203 01 31?

Yes, this TOPRAN Coolant Flange is a direct replacement for OE part number 000 203 01 31. 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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