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CP247
Gallery
BrandNRF
MPN509529
OE refs19
SKU0205-509529
GTIN / EAN8718042046581

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Details

SpecificationValue
BrandNRF
CategoryRadiator
Core Length [mm]647 mm
Core Width [mm]399 mm
Core Depth [mm]27 mm

OE/OEM numbers (19)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 1J0121253R. The red ring marks where this part installs on the vehicle.

Cooler for coolant supplied alternatively: — Jetta Jetta A4 (Typ 1J) (1999–2005) — Cooler for coolant flange Reservoir
Jetta Jetta A4 (Typ 1J) (1999–2005) · Cooler for coolant flange ReservoirPosition 17

About this product

Sourced from NRF, this radiator (509529) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Material: Steel, Supplementary Article/Info 2: 396, Radiator type: Steel, Core Length [mm]: 647 mm, Core Width [mm]: 399 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. 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: 01103029, 01103157, 01109029, 03002129 and 66 more. Matching these numbers confirms a like-for-like replacement with no loss of function. NRF 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.

Radiator buying guide

Why replace this part?

The radiator dissipates engine heat by transferring it from coolant to the air. A leaking or clogged radiator causes engine overheating, which can result in catastrophic engine damage including warped heads and blown gaskets.

Signs you need a replacement

  • Coolant leaks or puddles under the car
  • engine overheating
  • discoloured or rusty coolant
  • visible corrosion or damage to radiator fins
  • steam from under the bonnet

When to replace

Typically lasts 8–10 years. Replace when leaks develop or internal blockages cause overheating. Flush cooling system every 5 years.

Installation difficulty:Moderate — requires basic tools and mechanical knowledge

About NRF

NRF, founded in 1927 in the Netherlands, is Europe's leading specialist manufacturer of cooling and climate control components. NRF specialises in radiators, condensers, evaporators, compressors, heater cores, and cooling fans. As an OE supplier to major manufacturers and with products tested to exceed factory specifications, NRF ensures reliable thermal management for all vehicle types. With nearly a century of cooling expertise and the largest product range in the sector, NRF is the first choice for heating, cooling, and air conditioning repairs.

Suitable cars

Equivalent products (51)

Show all 51 OE numbers
4SEASONS102097
4SEASONS102097O
4SEASONS131060
4SEASONS131060O
4SEASONS131061
4SEASONS980AU14001
AKS DASIS040027N
AKS DASIS480970N
AUTOGAMMA101155
AVA Clever ChoiceAI2129
AVA Clever ChoiceAI2217
AVA Clever ChoiceVNA2217
AVA Clever ChoiceVWA2217
FRIGAIR01103029
FRIGAIR01103157
FRIGAIR01109029
HELLA8MK376713781
HELLA8MK376727791
HELLA8MK376888784
JDEUSRA0010190
KALE356980
KALE366400
MAGNETI MARELLI359000390220
MAGNETI MARELLIBM803
MAHLECR368000P
MAHLECR368001S
MAHLECR769000S
NISSENS65201A
NISSENS65229A
NISSENS692235
NRF509529A£45.99
THERMOTECD7W026TT
VALEO231606
VALEO231607
VALEO232175
VALEO232427
VALEO732175
VALEO732427
VAN WEZEL03002129
VAN WEZEL03002155
VAN WEZEL58002217
VEMOV15605022

Radiator NRF 509529compatible car models

Car modelsAUDI: A3 (8L1), TT (8N3), TT Roadster (8N9); SEAT: LEON (1M1), TOLEDO II (1M2); SKODA: OCTAVIA I (1U2), OCTAVIA I Combi (1U5), OCTAVIA I Estate Van (1U5); VW: BORA (9M2), BORA I (1J2), BORA Variant (1J6), GOLF IV (1J1), GOLF IV Van (1J1), GOLF IV Variant (1J5), GOLF VAN IV Variant (1J5)
Engines1.6; 1.8 T; 1.4; 1.4 16V; 1.9 D; 1.8 Turbo; 1.9 SDI
Year of manufacture1996-2014
Manufacturer article number (MPN)509529
OE part numbers1J0121253A, 1J0121253AB, 1J0121253AD, 1J0121253AF, 1J0121253AH, 1J0121253AJ, 1J0121253AN, 1J0121253AP, 1J0121253AQ, 1J0121253AT, 1J0121253H, 1J0121253J, 1J0121253L, 1J0121253M, 1J0121253N, 1J0121253P, 1J0121253Q, 1J0121253R, 1J0121253S
Compatibility check

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Description and what's included

NRF 509529 EASY FIT. Core Depth [mm]: 27 mm. Core Length [mm]: 647 mm. Core Width [mm]: 399 mm. Material: 1. Radiator type: 1. Supplementary Article/Info 2: 396

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

This Radiator 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 NRF Radiator have?

This NRF Radiator has the following specifications: Material: 1; Supplementary Article/Info 2: 396; Radiator type: 1; Core Length [mm]: 647 mm; Core Width [mm]: 399 mm; Core Depth [mm]: 27 mm. Check the full specifications table above for complete details.

What OE part numbers does this Radiator replace?

This Radiator replaces OE part numbers: 1J0121253A, 1J0121253AB, 1J0121253AD, 1J0121253AF, 1J0121253AH, 1J0121253AJ, 1J0121253AN, 1J0121253AP and 11 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Radiator cost?

This NRF Radiator is available for £64.99. Radiator prices vary depending on brand, specifications, and vehicle compatibility. NRF parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Radiator?

Signs of a failing radiator include visible coolant leaks (coloured fluid under the vehicle), engine overheating, coolant level dropping without explanation, or discolouration and corrosion on the radiator fins.

What tools do I need to replace a Radiator?

Tools needed: coolant drain pan, hose clamp pliers, flat-head screwdriver, 8-10mm socket, new coolant (correct type and mix ratio), funnel. Difficulty: Moderate DIY. Safety warning: Never open the radiator cap or coolant expansion tank on a hot engine -- pressurised coolant causes severe burns. Dispose of old antifreeze responsibly as it is toxic to animals.

Can I use this part as a replacement for OE 1J0121253A?

Yes, this NRF Radiator is a direct replacement for OE part number 1J0121253A. 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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