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.
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.
I appreciated the timeliness of the order as I was out of town and had it delivered to the dealership that had my 03 Ram 2500. The tech said the fitment was very good and would use the kit again without hesitation. Thank you!!
Used these on a 2004 Dodge Ram and they worked and fit perfectly. Really liked the quality. I won’t need them again, but I would definitely recommend them.
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
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.