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: 52
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 2,724In Stock
£9.36
£8.13
£7.96
£7.80
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 HDR 73CKT SHRD KEY A BLK GLD 1,089In Stock
£17.25
£15.24
£14.77
£14.31
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 80CKT SHRD KEY H GRY SLVR 978In Stock
£5.53
£5.01
£4.69
£4.47
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 GLD 827In Stock
£10.91
£9.96
£9.74
£9.54
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 73CKT SHRD KEY B GRY GLD 914In Stock
£14.73
£13.34
£13.06
£12.84
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 C BLUE SLVR 1,072In Stock
£5.00
£4.58
£4.33
£3.86
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 80CKT SHRD KEY H GRY GLD 1,002In Stock
£11.17
£9.30
£9.09
£8.99
Min.: 1
Mult.: 1
Headers 80 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Gold Gray 31387 Bulk
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H BLUE GLD 1,076In Stock
£12.42
£10.28
£10.11
£10.01
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 66CKT HDR SHRD KEY C BLUE GLD 227In Stock
£9.37
£8.30
£7.99
£7.66
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 MX123 HDR 73CKT SHRD KEY C BLUE GLD 86In Stock
£13.71
£12.40
£11.88
£11.47
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 0.64mm Grommet Seal Plug 581,698In Stock
£0.09
£0.075
£0.067
£0.064
Min.: 1
Mult.: 1
Accessories Connector Seal Plug (Male) Gray 34586
Molex Automotive Connectors MX123 56KCT HDR SHRD KEY G BLUE GOLD 477In Stock
1,400Expected 16/10/2026
£9.78
£8.71
£8.51
£8.36
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 MX123 HDR 73CKT SHRD KEY A BLK SLVR 735In Stock
£6.20
£6.16
£6.04
£4.98
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 MX64 F TERM 18-20AWG B WIND REEL 9000
36,000In Stock
72,000On Order
Reel
£0.059
£0.055
£0.054
Min.: 9,000
Mult.: 9,000
: 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
171,000In Stock
Reel
£0.062
£0.057
Min.: 9,000
Mult.: 9,000
: 9,000
Terminals Socket (Female) Cable Mount / Free Hanging Crimp Gold 20 AWG 18 AWG 33467 Reel
Molex Automotive Connectors MX150 SLD MALE DR 12CKT POL C W/O CPA 1,019In Stock
£2.65
£2.25
£2.01
£1.91
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 73/80Ckt Dress Cover 6,012In Stock
£1.42
£1.27
£1.10
£0.995
Min.: 1
Mult.: 1
Accessories Cover Black 34565 Bulk
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY SLVR 487In Stock
£5.18
£5.17
£5.16
£5.15
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 49/56Ckt Dress Cover 6,554In Stock
£0.421
£0.358
£0.299
£0.281
Min.: 1
Mult.: 1
Accessories Black 34575 Bulk
Molex Automotive Connectors MX64 F TERM 22 AWG B WIND REEL 10000
10,000In Stock
Reel
£0.069
Min.: 10,000
Mult.: 10,000
: 10,000
Terminals Socket (Female) Cable Mount / Free Hanging Crimp Gold 22 AWG 33467 Reel


Molex Automotive Connectors MX123 56CKT HDR SHRD KEY G BLUE SLVR 40In Stock
1,400Expected 15/10/2026
£4.85
£4.27
£4.16
£4.10
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 52In Stock
£9.73
£9.43
£9.09
£8.72
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 80CKT SHRD KEY G BLUE SLVR 171In Stock
1,120Expected 21/12/2026
£7.60
£6.58
£6.44
£6.37
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 66CKT HDR SHRD Key A BLK SLVR 192In Stock
£4.77
£4.05
£4.03
£3.20
Min.: 1
Mult.: 1
Headers 66 Position 2.54 mm (0.1 in) Pin (Male) Through Hole Solder Pin Silver Black 31387
Molex Automotive Connectors MX64 F TERM 22 AWG B WIND Cut Strip-100
7,600In Stock
£0.105
Min.: 100
Mult.: 100
Terminals Socket (Female) Cable Mount / Free Hanging Crimp Gold 22 AWG 33467 Cut Tape