MX123 Sealed Connectors

Molex MX123 Sealed Connection System is a fully sealed, high-performance system, designed for transportation power-train applications that require reliable connections in high-vibration under-the-hood environments. The MX123 sealed connection system from Molex meets GMW3191 specifications, ensuring this product can perform in very harsh, hot, high-vibration environments. This system utilizes matte-seal technology, creating an extremely resilient sealed connector system with a small package. Features include multiple polarization, wire-dress and PCB-tail options, and integrated TPA and CPA components, assisting in keeping the interface mated while freeing up valuable time in the assembly process.

Results: 51
Select Image Part # Mfr. Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Accessory Type Number of Positions Pitch Gender Mounting Style Termination Style Contact Plating Wire Gauge Min Wire Gauge Max Color Sealed / Unsealed Series Packaging
Molex Automotive Connectors MX123 56CKT HDR SHRD KEY H GRY GLD 2,799In Stock
Min.: 1
Mult.: 1

Headers 56 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Gray 31386
Molex Automotive Connectors MX123 66CKT HDR SHRD KEY C BLUE SLVR 1,093In Stock
Min.: 1
Mult.: 1

Headers 66 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Blue 31387
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY SLVR 650In Stock
Min.: 1
Mult.: 1

Headers 73 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Gray 31387
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H BLUE GLD 832In Stock
Min.: 1
Mult.: 1

Headers 80 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Blue 31387 Bulk
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY GLD 929In Stock
Min.: 1
Mult.: 1

Headers 73 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Gray 31387 Bulk
Molex Automotive Connectors MX123 66CKT HDR SHRD Key A BLK GLD 882In Stock
Min.: 1
Mult.: 1

Headers 66 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Black 31387
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY G BLUE SLVR 480In Stock
Min.: 1
Mult.: 1

Headers 80 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Blue 31387

Molex Automotive Connectors MX123 HRN CONN 49CKT OPT9 KY A/49 47In Stock
Min.: 1
Mult.: 1

Housings 49 Position Receptacle (Female) Cable Mount / Free Hanging Crimp 34576
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY C BLUE GLD 90In Stock
Min.: 1
Mult.: 1

Headers 73 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Blue 31387
Molex Automotive Connectors MX123 56KCT HDR SHRD KEY G BLUE GOLD 1,117In Stock
Min.: 1
Mult.: 1

Headers 56 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Blue 31386 Bulk
Molex Automotive Connectors MX64 F TERM 18-20AWG B WIND REEL 9000 36,000In Stock
54,000Expected 27/04/2026
Min.: 9,000
Mult.: 9,000
Reel: 9,000

Terminals Socket (Female) Cable Mount / Free Hanging Crimp Gold 20 AWG 18 AWG 33467 Reel
Molex Automotive Connectors MX64 RCPT Au 18/20 Reel of 9000 135,000In Stock
Min.: 9,000
Mult.: 9,000
Reel: 9,000

Terminals Socket (Female) Cable Mount / Free Hanging Crimp Gold 20 AWG 18 AWG 33467 Reel
Molex Automotive Connectors MX123 73/80Ckt Dress Cover 4,408In Stock
3,576Expected 23/02/2026
Min.: 1
Mult.: 1

Accessories Cover Black 34565 Bulk
Molex Automotive Connectors MX123 0.64mm Grommet Seal Plug 117,264In Stock
118,920Expected 04/03/2026
Min.: 1
Mult.: 1

Accessories Connector Seal Plug (Male) Gray 34586
Molex Automotive Connectors MX123 66CKT HDR SHRD KEY C BLUE GLD 259In Stock
Min.: 1
Mult.: 1

Headers 66 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Blue 31387
Molex Automotive Connectors MX64 F TERM 22 AWG B WIND REEL 10000 20,000In Stock
Min.: 10,000
Mult.: 10,000
Reel: 10,000

Terminals Socket (Female) Cable Mount / Free Hanging Crimp Gold 22 AWG 33467 Reel
Molex Automotive Connectors MX150 SLD MALE DR 12CKT POL C W/O CPA 251In Stock
Min.: 1
Mult.: 1

Connectors 12 Position 3.5 mm (0.138 in) Plug (Male) Cable Mount / Free Hanging Crimp Gray 33482
Molex Automotive Connectors MX123 49/56Ckt Dress Cover 1,925In Stock
Min.: 1
Mult.: 1

Accessories Black 34575 Bulk


Molex Automotive Connectors MX123 56CKT HDR SHRD KEY G BLUE SLVR 291In Stock
Min.: 1
Mult.: 1

Headers 56 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Blue 31386
Molex Automotive Connectors MX123 56CKT HDR SHRD KEY H GRY SLVR 79In Stock
Min.: 1
Mult.: 1

Headers 56 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Gray 31386
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY A BLK GLD 47In Stock
1,120Expected 16/03/2026
Min.: 1
Mult.: 1

Headers 73 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Black 31387 Bulk
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY C BLUE SLVR 45In Stock
Min.: 1
Mult.: 1

Headers 73 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Blue 31387


Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY A BLK SLVR 260In Stock
Min.: 1
Mult.: 1

Headers 73 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Black 31387


Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H GRY SLVR 177In Stock
Min.: 1
Mult.: 1

Headers 80 Position 2.54 mm (0.1 in) Plug (Male) SMD/SMT Solder Pin Silver Gray 31387
Molex Automotive Connectors MX123 66CKT HDR SHRD Key A BLK SLVR 386In Stock
Min.: 1
Mult.: 1

Headers 66 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Black 31387