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 (USD) 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
13,200On Order
$0.67
$0.583
$0.533
$0.481
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 56CKT HDR SHRD KEY H GRY GLD 2,724In Stock
$12.34
$10.61
$10.50
$10.40
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY A BLK GLD 1,089In Stock
$22.24
$20.04
$19.61
$19.03
Min.: 1
Mult.: 1


Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H GRY SLVR 968In Stock
$7.23
$4.83
$4.73
$4.64
$4.63
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 66CKT HDR SHRD KEY C BLUE SLVR 1,072In Stock
$6.61
$6.11
$5.77
$4.90
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H GRY GLD 942In Stock
$14.06
$11.79
$11.65
$11.56
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 80CKT SHRD KEY H BLUE GLD 1,071In Stock
$16.93
$13.67
$13.53
$13.46
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 66CKT HDR SHRD Key A BLK GLD 817In Stock
$14.54
$13.55
$13.35
$13.10
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY GLD 909In Stock
$18.15
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 22 AWG B WIND REEL OF 1000
15,000In Stock
Reel
$0.07
$0.067
Min.: 1,000
Mult.: 1,000
: 1,000
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY C BLUE GLD 80In Stock
$16.62
$15.63
$15.32
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 0.64mm Grommet Seal Plug 516,961In Stock
$0.12
$0.10
$0.09
$0.085
Min.: 1
Mult.: 1
Molex Crimpers / Crimping Tools MX64 FEMALE CRIMPER 35In Stock
$767.65
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 56KCT HDR SHRD KEY G BLUE GOLD 1,877In Stock
$12.83
$11.47
$11.29
$11.13
Min.: 1
Mult.: 1


Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY A BLK SLVR 610In Stock
$8.26
$8.21
$8.05
$6.63
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 22 AWG D WIND REEL 10000
20,000In Stock
Reel
$0.098
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
$0.094
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
$0.098
Min.: 9,000
Mult.: 9,000
: 9,000
Molex Automotive Connectors MX150 SLD MALE DR 12CKT POL C W/O CPA 994In Stock
$3.52
$3.00
$2.67
$2.55
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 73/80Ckt Dress Cover 4,707In Stock
5,200Expected 2026/11/20
$1.88
$1.67
$1.45
$1.30
Min.: 1
Mult.: 1
Molex Extraction, Removal & Insertion Tools EXTRACTOR TOOL 103In Stock
$85.89
$79.62
$76.75
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 HDR 73CKT SHRD KEY B GRY SLVR 487In Stock
$6.90
$6.88
$6.87
$6.86
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 18-20AWG B WIND Loose PC
27,380In Stock
$0.25
$0.215
$0.19
$0.178
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 49/56Ckt Dress Cover 6,336In Stock
$0.561
$0.477
$0.398
$0.374
Min.: 1
Mult.: 1
Molex Crimpers / Crimping Tools Hand Crimp Tool MX64 .35mm2&.50-.75mm2 Wr 16In Stock
$595.03
$575.74
Min.: 1
Mult.: 1