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Description
john deere air compressor for planter Air Conditioning Conversion Kit for John Deere 4230, 4240, 4430, 4440 - Sanden Style, 990-403KDitch the aging A6 compressor and upgrade your John Deere tractor to a modern Sanden style A C system with this complete, all in one conversion kit from AP Air. Everything you need for a clean, reliable installation is included no sourcing individual parts. What's Included (SKU: QFS 990 403K) Sanden Style Compressor Conversion Kit (990 403) replaces the original A6 piston compressor with a lightweight, efficient rotary unit Receiver Drier new
Ditch the aging A6 compressor and upgrade your John Deere tractor to a modern Sanden-style A/C system with this complete, all-in-one conversion kit from AP Air. Everything you need for a clean, reliable installation is included — no sourcing individual parts.
What's Included (SKU: QFS-990-403K)
- Sanden-Style Compressor Conversion Kit (990-403) — replaces the original A6 piston compressor with a lightweight, efficient rotary unit
- Receiver Drier — new desiccant to keep moisture out of the system
- Expansion Valve — controls refrigerant flow for optimal cooling performance
- O-Ring Kit — all seals needed for a leak-free installation
Designed to use your original belt and hoses — no custom fabrication or hose rerouting required.
Compatible John Deere Models
- John Deere 4040 & 4040 Euro
- John Deere 4230
- John Deere 4240, 4240 Euro & 4240S
- John Deere 4350
- John Deere 4430
- John Deere 4440
- John Deere 7720
- And more — contact us to confirm fitment on your specific model
Why Upgrade from the A6 Compressor?
The original A6 piston compressor is heavy, inefficient, and increasingly difficult to find parts for. The Sanden rotary compressor offers:
- Less engine load — lighter weight means less parasitic drag
- Better cooling efficiency — especially at low RPMs during field work
- R134a compatibility — works with the modern, readily available refrigerant standard
- Widely serviceable — any shop with modern A/C equipment can service a Sanden system
Installation Notes
- Flush the system before installing to remove residual mineral oil from the old A6 system
- Use PAG oil specified for the Sanden compressor — do not mix with old mineral oil
- Replace all O-rings with HNBR (green) O-rings rated for R134a (included in kit)
- Have the system professionally evacuated and recharged with R134a refrigerant
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support.
It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.)
I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night.
I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable.
I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing.
Would highly recommend.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
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Reviewed in the United States on May 9, 2026
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
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Reviewed in the United States on May 28, 2026