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CP247
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BrandNISSENS
MPN73921
OE refs5
SKU0123-73921
GTIN / EAN5707286234949

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Details

SpecificationValue
BrandNISSENS
Inlet Ø [mm]22 mm
Outlet Ø [mm]22 mm
Core Length [mm]234 mm
Core Width [mm]157 mm
Core Depth [mm]42 mm

OE/OEM numbers (5)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 1J1819031B. The red ring marks where this part installs on the vehicle.

2006 (1J-6-000 001 >>) — Body › 81920
2006 (1J-6-000 001 >>) · Body › 81920Position 30

About this product

Sourced from NISSENS, this heat exchanger interior heating (73921) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Inlet Ø [mm]: 22 mm, Outlet Ø [mm]: 22 mm, Cooling fins material: Steel, Radiator type: Aluminium, Water Tank Material (radiator): Plastic — 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: 049000N, 06102006, 102422, 1811209 and 34 more. Matching these numbers confirms a like-for-like replacement with no loss of function. NISSENS 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.

About NISSENS

Nissens, founded in 1921 in Horsens, Denmark, is a leading European manufacturer of engine cooling and climate control components. Nissens specialises in radiators, charge air coolers (intercoolers), condensers, compressors, and oil coolers. With products developed and tested to meet OE quality standards, Nissens supplies both the independent aftermarket and original equipment manufacturers. Combining Scandinavian engineering values with over a century of thermal management expertise, Nissens delivers efficient cooling solutions that ensure optimum engine and cabin temperature control.

Suitable cars

Equivalent products (34)

Show all 34 OE numbers
4SEASONS93705
AKS DASIS049000N
ARD320131
ARD320138
AURADIAVW6173
AURADIAVWA6060
BEHR HELLA SERVICE8FH351001621
BEHR HELLA SERVICE8FH351311021
FRIGAIR06102006
GERI7149
JDEUS230M05
JDEUSM2010190
JP GROUP819291001
KAGER320131
KAGER320138
KALE OTO RADYATÖR346255
KLOKKERHOLM9523306173
MAGNETI MARELLI350218211000
MAHLEAH20000S
MAHLEAH72000S
NRF53402£29.99
NRF58223£21.99
QUINTON HAZELLQHR2149
REACH Cooling1811209
SCHLIECKMANN60586173
SPECTRA PREMIUM93048
SPECTRA PREMIUM94730
VALEO812195
VALEO812196
VEMOV15610008
VERTAT102422

Heat Exchanger Interior Heating NISSENS 73921compatible 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), NEW BEETLE (9C1, 1C1), NEW BEETLE Convertible (1Y7), POLO III CLASSIC (6V2)
Engines1.6; 1.8 T; 1.4 16V; 1.4; 1.9 D; 1.8 Turbo; 1.9 SDI
Year of manufacture1995-2014
Manufacturer article number (MPN)73921
OE part numbers1J1.819.031, 1J1819031A, 1J1.819.031 B, 1J2.819.031 A, 1J2819031B
Compatibility check

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Description and what's included

NISSENS 73921 . Cooling fins material: 1. Core Depth [mm]: 42 mm. Core Length [mm]: 234 mm. Core Width [mm]: 157 mm. Inlet Ø [mm]: 22 mm. Outlet Ø [mm]: 22 mm. Radiator type: 2. Water Tank Material (radiator): 6

What's included:
  • 1x Heat Exchanger Interior Heating
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 Heat Exchanger Interior Heating compatible with my car?

This Heat Exchanger Interior Heating 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 NISSENS Heat Exchanger Interior Heating have?

This NISSENS Heat Exchanger Interior Heating has the following specifications: Inlet Ø [mm]: 22 mm; Outlet Ø [mm]: 22 mm; Cooling fins material: 1; Radiator type: 2; Water Tank Material (radiator): 6; Core Length [mm]: 234 mm. Check the full specifications table above for complete details.

What OE part numbers does this Heat Exchanger Interior Heating replace?

This Heat Exchanger Interior Heating replaces OE part numbers: 1J1.819.031, 1J1819031A, 1J1.819.031 B, 1J2.819.031 A, 1J2819031B. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Heat Exchanger Interior Heating cost?

This NISSENS Heat Exchanger Interior Heating is available for £29.99. Heat Exchanger Interior Heating prices vary depending on brand, specifications, and vehicle compatibility. NISSENS parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Heat Exchanger Interior Heating?

Regular inspection of your Heat Exchanger Interior Heating 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 Heat Exchanger Interior Heating?

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 Heat Exchanger Interior Heating fitted by a professional mechanic.

Can I use this part as a replacement for OE 1J1.819.031?

Yes, this NISSENS Heat Exchanger Interior Heating is a direct replacement for OE part number 1J1.819.031. 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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