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Mopar

A/C & Heater Box Seal Kit | 2002-2009 Dodge Ram 1500 2500 3500 | OEM Mopar 68004231AB

A/C & Heater Box Seal Kit | 2002-2009 Dodge Ram 1500 2500 3500 | OEM Mopar 68004231AB

Regular price $55.00 USD
Regular price Sale price $55.00 USD
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Foam blowing out of your vents — or reduced heat and A/C output after an HVAC repair? On 3rd Gen Ram trucks, the HVAC box foam seals deteriorate over time and are often damaged during any heater core, evaporator, or door actuator job. This OEM Mopar kit restores a proper airtight seal across the entire heater box.

Part Number: 68004231AB

Fits:

  • 2002–2008 Dodge Ram 1500 (Single Zone, Dual Zone & Mega Cab)
  • 2003–2009 Dodge Ram 2500 & 3500 (Single Zone, Dual Zone & Mega Cab)

⚠️ 2002–2006 fitment note: This kit is designed for the 2007–2009 HVAC box but also fits 2002–2006 trucks. Two foam pieces in the kit are specific to the 2007–2009 box and will not be used on earlier trucks — everything else applies.

When to replace it:

  • Foam debris blowing from vents
  • Reduced heat or A/C output after an HVAC box repair
  • Musty or stale air smell from the vents
  • Any full HVAC box rebuild — always replace the seals while the box is open

OEM Mopar quality. Direct fit. Fast shipping from Ram Parts USA.

Customer Reviews

Overall rating: 4.9 / 5 from 22 reviews.

Customer photo review of 3rd Gen Ram (02-09) Seal Kit Unit A/C & Heater Unit (68004231AB)

before and after pictures tell the story. The seal kit was a great addition to the rebuild of the heater box. The old seals were all falling apart.

3rd Gen Ram (02-09) Seal Kit Unit A/C & Heater Unit (68004231AB)

Store owner replied: Thank you for the review Steven, glad it all worked out!

Fits very well and easy to install. The foam pieces for the heater core stubs and evap core stubs sticking out go ok the inside of the firewall. Just to help people like me who couldn't remember how it came apart. 10/10 product

3rd Gen Ram (02-09) Seal Kit Unit A/C & Heater Unit (68004231AB)

This job I was really worried about--yet I went ahead and did it. Turns out this went super well and was not too hard to get done. Getting the hoses and ac lines disconnected from under the hood was the hardest -- the heater hose clamps are way underneath--so ended up cutting the hoses and installing new. Would also suggest installing and clamping the new hoses before reinstalling the HVAC box as trying to reinstall hoses and clamps are a real sob. Otherwise, great support and quality doors. All works perfect now.

3rd Gen Ram (02-09) Seal Kit Unit A/C & Heater Unit (68004231AB)

Store owner replied: Thank you for all the helpful guidance for future customers!