Thermo King 56-4037B Valve, Solenoid

Thermo King 56-4037B is a reefer refrigerant valves & lines in Refrigeration Units (Reefer), US catalog. Listed by US Government (DLA FLIS), October 2026.

Thermo King part number 56-4037B is listed as Reefer refrigerant valves & lines. This manufacturer's reference number is recorded under government stock item NSN 4810-00-657-2850.

Manufacturer
Thermo King
Part number
56-4037B
Category
Refrigeration Units (Reefer)
Type
Reefer refrigerant valves & lines
Government stock item (NSN)
4810-00-657-2850
SearchForPart reference
SFP-PRT-E4FQX85J

What does it fit?

The source prints no vehicle, engine or equipment for this part.

Government data (US Government (DLA FLIS), October 2026 edition)

The U.S. government's Federal Logistics Information System (FLIS) records Thermo King 56-4037B as the maker's own number under government stock item NSN 4810-00-657-2850. The name and every fact below are FLIS's, credited to US Government (DLA FLIS), October 2026 edition.

Specifications recorded for government stock item NSN 4810-00-657-2850, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name
Valve, Solenoid
Government stock item (NSN)
4810-00-657-2850
Manufacturer code (CAGE)
61510, THERMO KING CORPORATION DBA PHOENIX GLOBAL DISTIRBUTION., MINNEAPOLIS, MN, UNITED STATES
Thread class
2A
Thread direction
All ends: right-hand
Flow control device
Piston
Flow control device normal operation position
Closed
Current rating in amps
0.250
Valve operation method
Solenoid
Connection type
All ends: threaded external tube
Mounting position
Horizontal or vertical
Thread quantity per inch
14
Nominal thread size
All ends: 0.875 in
Operating pressure
Single response: 500.0 psi (maximum)
Seat angle
All ends: 45.0 degrees
Voltage in volts and current type
AC 300.0
Phase
Single
Special features
Body tapped for mounting bracket
Frequency in hertz
60.0
Material
Overall: copper alloy
Thread series designator
All ends: UNF

Other reference numbers listed under the same stock item

These numbers are recorded under the same government stock item. That is not a statement that the parts replace each other or fit the same equipment: confirm with the manufacturer.

Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.

About this kind of part (general, written by SearchForPart)

Valves, tubes and fittings of the refrigerant circuit. Loss of cooling or refrigerant leaks point to them. Check the unit model and refrigerant.

When ordering, give the part number exactly as printed and its maker, and the make, model and year of the truck, trailer, reefer unit or machine (or the engine or unit serial number). SearchForPart shows fitment only as the source printed it: check it before you order.

Availability

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Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.

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