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CP247
Gallery
BrandHART
MPN509 263
OE refs25
SKU5251-509 263
GTIN / EAN5907643077534

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Details

SpecificationValue
BrandHART

OE/OEM numbers (25)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 823959481F. The red ring marks where this part installs on the vehicle.

1979 — Electrics › 88
1979 · Electrics › 88Position 10

About this product

When temperature switch radiator fan performance matters, the HART 509 263 delivers — built to the same dimensional and material standards as the original part it replaces. Compatible with ALFA ROMEO, AUDI, AUSTIN, CITROËN and 17 other makes 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: 21033808800NW, 28286103, 4235533, 4240878 and 22 more. Matching these numbers confirms a like-for-like replacement with no loss of function. HART 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.

Suitable cars

No equivalent parts found.

Temperature Switch Radiator Fan HART 509 263compatible car models

Car modelsALFA ROMEO: ALFASUD Giardinetta (904); AUDI: 100 C1 Coupe (817), 100 C1 Saloon (801, 803, 805, 807, 811, 813, F104), 100 C2 Avant (435, 436), 100 C2 Saloon (431, 433, 434), 50 (863), 80 B1 Saloon (80, 82); AUSTIN: ALLEGRO I Estate (ADO 67), ALLEGRO I Hatchback (ADO 67), MAESTRO Fastback (XC), METRO I Fastback (XF), MINI I, MONTEGO Estate (XE), PRINCESS, PRINCESS 2; CITROËN: BX (XB-), DS, VISA; DACIA: 1300, 1300 Estate, 1310 Estate, 1310 Saloon (U, X); DAEWOO: NEXIA, NEXIA Saloon; DAIMLER: 2.8 - 5.3, COUPE, XJ 40, 81; FERRARI: 208/308 Coupe, 512 BB; FIAT: 124 (124)
Engines1.3 (904B); 1.9; 1.6; 1.1; 1.3; 1.0; 850; 2.0; 1800 HL; 2200; 14 E; 20; 0.6; 1.5 (08, 68); 1.5 16V (19) (+5 more)
Year of manufacture1958-2008
Manufacturer article number (MPN)509 263
OE part numbers21033808800NW, 28286103, 4235533, 4240878, 531 971 071 J, 53331172, 82273809, 82348209, 823 959 481, 823 959 481 A, 823 959 481 F, 823 959 481 L, 823 959 481 M, 856923, 923 959 481 A, 923 959 481 J, 9 526 518, FC9 526 000 0, FC9 526 000 3, GE9 526 000 0 (+5 more)
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Description and what's included

HART 509263 . 509 263

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

This Temperature Switch Radiator Fan fits ALFA ROMEO, AUDI, AUSTIN, CITROËN, DACIA and 16 more 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 HART Temperature Switch Radiator Fan have?

The package includes the Temperature Switch Radiator Fan as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.

What OE part numbers does this Temperature Switch Radiator Fan replace?

This Temperature Switch Radiator Fan replaces OE part numbers: 21033808800NW, 28286103, 4235533, 4240878, 531 971 071 J, 53331172, 82273809, 82348209 and 17 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Temperature Switch Radiator Fan cost?

This HART Temperature Switch Radiator Fan is available for £9.99. Temperature Switch Radiator Fan prices vary depending on brand, specifications, and vehicle compatibility. HART parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Temperature Switch Radiator Fan?

Regular inspection of your Temperature Switch Radiator Fan 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 Temperature Switch Radiator Fan?

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 Temperature Switch Radiator Fan fitted by a professional mechanic.

Can I use this part as a replacement for OE 21033808800NW?

Yes, this HART Temperature Switch Radiator Fan is a direct replacement for OE part number 21033808800NW. 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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