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.

All Results (59)

Select Image Part # Mfr. Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity. Qty. RoHS


Molex Automotive Connectors MX123 WIRE DRESS COVER 66/73/80 CKT 10,230In Stock
13,174On Order
$0.965
$0.84
$0.768
$0.693
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 56CKT HDR SHRD KEY H GRY GLD 2,724In Stock
$17.68
$13.78
$13.58
$13.39
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY A BLK GLD 1,089In Stock
$31.64
$28.92
$28.58
$27.39
Min.: 1
Mult.: 1


Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H GRY SLVR 968In Stock
$10.41
$6.94
$6.81
$6.68
$6.67
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 66CKT HDR SHRD KEY C BLUE SLVR 1,072In Stock
$9.48
$8.80
$8.31
$6.87
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY GLD 909In Stock
$25.46
$23.96
$23.93
$21.72
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H BLUE GLD 1,071In Stock
$24.57
$20.26
$20.06
$19.96
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H GRY GLD 942In Stock
$19.83
$16.70
$16.57
$16.44
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 66CKT HDR SHRD Key A BLK GLD 817In Stock
$20.94
$19.67
$19.44
$19.18
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 22 AWG B WIND REEL OF 1000
15,000In Stock
Reel
$0.101
$0.098
Min.: 1,000
Mult.: 1,000
: 1,000
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY C BLUE GLD 80In Stock
$22.77
$21.87
$21.34
$20.88
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 0.64mm Grommet Seal Plug 510,761In Stock
$0.173
$0.144
$0.128
$0.122
Min.: 1
Mult.: 1
Molex Crimpers / Crimping Tools MX64 FEMALE CRIMPER 35In Stock
$1,095.44
$1,044.79
$1,011.27
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 56KCT HDR SHRD KEY G BLUE GOLD 1,874In Stock
$18.48
$16.50
$16.26
$16.03
Min.: 1
Mult.: 1


Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY A BLK SLVR 610In Stock
$11.88
$11.82
$11.59
$9.55
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 22 AWG D WIND REEL 10000
20,000In Stock
Reel
$0.141
Min.: 10,000
Mult.: 10,000
: 10,000
Molex Automotive Connectors MX64 F TERM 18-20AWG B WIND REEL 9000
36,000In Stock
216,000Expected 2026-12-31
Reel
$0.135
Min.: 9,000
Mult.: 9,000
: 9,000
Molex Automotive Connectors MX64 RCPT Au 18/20 Reel of 9000
81,000In Stock
162,000Expected 2026-11-12
Reel
$0.141
Min.: 9,000
Mult.: 9,000
: 9,000
Molex Automotive Connectors MX150 SLD MALE DR 12CKT POL C W/O CPA 994In Stock
$5.07
$4.32
$3.86
$3.67
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 73/80Ckt Dress Cover 4,651In Stock
5,200Expected 2026-11-20
$2.71
$2.40
$2.09
$1.87
Min.: 1
Mult.: 1
Molex Extraction, Removal & Insertion Tools EXTRACTOR TOOL 103In Stock
$123.65
$114.62
$110.25
$105.55
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY SLVR 487In Stock
$9.94
$9.92
$9.91
$9.89
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 18-20AWG B WIND Loose PC
27,170In Stock
$0.36
$0.31
$0.274
$0.256
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 49/56Ckt Dress Cover 6,335In Stock
$0.806
$0.687
$0.573
$0.539
Min.: 1
Mult.: 1
Molex Crimpers / Crimping Tools Hand Crimp Tool MX64 .35mm2&.50-.75mm2 Wr 16In Stock
$856.68
$794.12
$768.63
Min.: 1
Mult.: 1