Here is what I have gathered in order to add heated & ventilated front seats ("cushion" refers to the ass cushion, "back" refers to back cushion). This is for replacing/adding each individual part of the seat rather than replacing the entire seat:
For ventilated seats, you'll need 2 of each of these parts (1 for each seat):
- Cushion blower
-- 6836626
2
- Back blower
-- 6836626
3
- Cushion ventilation bag
-- 6836209
9
- Back ventilation bag
-- 6836209
8
You do not need the blowers if you do not want ventilated seats and only want heated seats, and you will need the heating elements instead of the bags that are for the seats that are heated AND ventilated. The heating element is part of the "bag" you need for ventilated seats, so you only need the 1 part for both heated & ventilated seats. It is different part numbers for heated seats only.
For the below, I'm honestly not sure if these are the same part numbers for heated seats only, as most of my research has been for heated & ventilated seats. The "covers" (the leather or cloth skin on the seat) are the most expensive part of this, and I'm trying to avoid it if I can. I spent about $1200 CAD on all 4 foams, blowers, and bags. The covers themselves are about $800 CAD each, and you need 4 of them. If you do choose to get new covers, looks like leather is the only option for ventilated seats, but there may be other ones for heated seats only. I'm still in the process of seeing if I can get heated & ventilated seats to work in my existing cloth seats. Thanks to
@01Time for the help with these and all the part numbers.
Here is that post, as well as post # 305 two below. In reference to his providing the parts lists, these are the ones with the CAJ sales code (Seats - Ventilated Front).
Driver seat:
- Cushion foam 6845435
9
- Back foam 6845418
5
- Cushion cover
-- 7BA61BD3 leather, black
-- 7BA61HL1 leather, mountain brown light frost beige
- Back cover
-- 6XU2
5BD3 leather, black
-- 6XU2
5HL1 leather, mountain brown light frost beige
- Wiring (working on part numbers)
-- Comfort Seat and Wheel Module (CSWM)
--
Passenger seat:
- Cushion foam 6845435
8
- Back foam 6845418
4 - can confirm that this foam is a slightly different shape than my original foam (can't find a part number on my original one, but it's a manual adjust, no heat/vent seat)
- Cushion cover
-- 6XU2
6BD3 leather, black
-- 6XU2
6HL1 leather, mountain brown light frost beige
- Back cover
-- 6XU2
4BD3 leather, black
-- 6XU2
4HL1 leather, mountain brown light frost beige
- Wiring
-- My 2019 2500 big horn has a fully populated wiring harness under the passenger seat for supply to the seat (truck side), which tells me all trucks are fitted with the wiring up to the seat
-- On the seat side, my original wiring harness is PN 68395871. There's 6 wires coming out of the big main yellow connector, and 4 connectors after that: seat belt sensor, seat occupancy sensor, air bag, and one connected to a dummy connector. I'm trying to figure out how there are 6 wires attached to the big yellow connector, but 8 between the other 4 connectors...
--
I am initially only planning on tackling the seats and enabling the options with AlfaOBD, so I'm not sure about radio bezels. Also, because of only tackling seats, these numbers are just pulled from one of the previous replies:
Parts required for heated steering wheel:
Clock spring: 68425689
Center stack: 68370125 (this is for manual climate controls with an 8.4 screen) Not sure if this has heated/ventilated seat controls.
Please let me know if any of this is incorrect, as it will help me with my projects as well!