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NissensPart #: 73943

Nissens 73943 HVAC Heater Core
⚙️ 20 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$120.68Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi and Volkswagen, Arteon, Golf R, Q3, TT Quattro, TT RS Quattro, and TTS Quattro
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Nissens 73943 HVAC Heater Core
| Brand | Nissens |
| Part Number | 73943 |
| Core Material | Aluminum |
| Tank Material | Aluminum |
| Construction | Brazed cooling fins |
| Core Height | 6.4600 |
| Core Length | 6.8900 |
| Core Width | 1.0200 |
| Pipe Included | Yes |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2019 | Audi | Q3 | Premium Plus | 2.0L | L4 | GAS | N/A | To 11/25/2018 |
| 2019 | Audi | Q3 | Premium | 2.0L | L4 | GAS | N/A | To 11/25/2018 |
| 2019 | Audi | TT Quattro | Base | 2.0L | L4 | GAS | N/A | To 12/10/2018 |
| 2019 | Audi | TT RS Quattro | Base | 2.5L | L5 | GAS | N/A | To 12/10/2018 |
| 2019 | Audi | TTS Quattro | Base | 2.0L | L4 | GAS | N/A | To 12/10/2018 |
| 2019 | Volkswagen | Arteon | SEL | 2.0L | L4 | GAS | N/A | To 12/16/2018 |
| 2019 | Volkswagen | Arteon | SEL Premium R-Line | 2.0L | L4 | GAS | N/A | To 12/16/2018 |
| 2019 | Volkswagen | Arteon | SEL R-Line | 2.0L | L4 | GAS | N/A | To 12/16/2018 |
| 2019 | Volkswagen | Arteon | SE | 2.0L | L4 | GAS | N/A | To 12/16/2018 |
| 2018 | Audi | TT Quattro | Base | 2.0L | L4 | GAS | N/A | |
| 2018 | Audi | TT RS Quattro | Base | 2.5L | L5 | GAS | N/A | |
| 2018 | Audi | TTS Quattro | Base | 2.0L | L4 | GAS | N/A | |
| 2018 | Volkswagen | Golf R | Base | 2.0L | L4 | GAS | N/A | VENDOR DENSO |
| 2017 | Audi | TT Quattro | Base | 2.0L | L4 | GAS | N/A | |
| 2017 | Audi | TTS Quattro | Base | 2.0L | L4 | GAS | N/A | |
| 2017 | Volkswagen | Golf R | Base | 2.0L | L4 | GAS | N/A | VENDOR DENSO |
| 2016 | Audi | TT Quattro | Base | 2.0L | L4 | GAS | N/A | |
| 2016 | Audi | TTS Quattro | Base | 2.0L | L4 | GAS | N/A | |
| 2016 | Volkswagen | Golf R | Base | 2.0L | L4 | GAS | N/A | VENDOR DENSO |
| 2015 | Volkswagen | Golf R | Base | 2.0L | L4 | GAS | N/A | VENDOR DENSO |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
5Q0819031A8115069803099384
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.