Product Details
Cabin Environment Controls for Cessna Aircraft
Longer life and improved design
McFarlane has FAA-PMA approval on the cabin air, cabin heat, cabin vent, cold air and defrost controls for many single engine Cessna aircraft. All of these controls feature McFarlane’s improved push-to-unlock mechanism with greater holding strength and longer life. Most knobs match originally equipped knobs.
- Special, heavier wire for more fatigue strength and reliability
- Improved push-to-unlock mechanism on MCS P/Ns = more holding strength
- Reduced vibration wear and longer life!
- High temperature Teflon lined conduit

Eligible Aircraft
| Make | Model | Start S/N | End S/N | Qty/Aircraft | Location | Eligibility Chart |
|---|---|---|---|---|---|---|
| Cessna | 152 | 15283592 | 15286033 | 1 | CABIN HEAT | 1337 |
| Cessna | A152 | A1520879 | A1521049 | 1 | CABIN HEAT | 1337 |
| Cessna | F152 | F15201674 | F15201980 | 1 | CABIN HEAT | 1337 |
| Cessna | FA152 | FA1520358 | FA1520425 | 1 | CABIN HEAT | 1337 |
| Cessna | 172K | 17258487 | 17259223 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | 172L | 17259224 | 17260758 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | 172M | 17260759 | 17263458 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | 172M | 17263459 | 17267584 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | 172N | 17267585 | 17272884 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | 172N | 17272885 | 17274009 | 1 | CABIN HEAT | 1337 |
| Cessna | 172P | 17274010 | 17276259 | 1 | CABIN HEAT | 1337 |
| Cessna | 172Q | 17275869 | 17276211 | 1 | CABIN HEAT | 1337 |
| Cessna | 172RG | 172RG0001 | 172RG1177 | 1 | CABIN HEAT | 1337 |
| Cessna | F172H | F17200655 | F17200754 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | F172K | F17200755 | F17200804 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | F172L | F17200805 | F17200904 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | F172M | F17200905 | F17201234 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | F172M | F17201235 | F17201514 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | F172N | F17201515 | F17201909 | 2 | CABIN HEAT, CABIN AIR | 1337 |
| Cessna | F172N | F17201910 | F17202039 | 1 | CABIN HEAT | 1337 |
| Cessna | F172P | F17202040 | F17202233 | 1 | CABIN HEAT | 1337 |
| Cessna | 180H | 18052104 | 18052284 | 1 | CABIN HEAT | 1337 |
| Cessna | 180J | 18052285 | 18052384 | 1 | CABIN HEAT | 1337 |
| Cessna | 180J | 18052385 | 18052770 | 1 | CABIN HEAT | 1337 |
| Cessna | 180K | 18052771 | 18053203 | 1 | CABIN HEAT | 1337 |
| Cessna | A185E | 18501600 | 18502090 | 1 | CABIN HEAT | 1337 |
| Cessna | A185F | 18502091 | 18502310 | 1 | CABIN HEAT | 1337 |
| Cessna | A185F | 18502311 | 18504448 | 1 | CABIN HEAT | 1337 |
Part Number Information
Supersedes Part Numbers
S1239-46 (Textron, Inc.) | S1239-47 (Textron, Inc.) | S1239-48 (Textron, Inc.)
Cross-reference information
Cross Reference Reference only: Please verify the product is eligible for your aircraft before adding to your cart. OEM Part Number McFarlane Part Number Comment S1239-46 MCS1239-48 S1239-47 MCS1239-48 S1239-48 MCS1239-48
Additional product information
Approval: FAA PMA SupersedesPartNumber: S1239-46 (Manufacturer: Textron, Inc.) SupersedesPartNumber: S1239-47 (Manufacturer: Textron, Inc.) SupersedesPartNumber: S1239-48 (Manufacturer: Textron, Inc.)





