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 (GBP) 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 17,381In Stock
5,974On Order
£0.503
£0.437
£0.40
£0.361
Min.: 1
Mult.: 1
Molex 216741-0004
Molex Automotive Connectors MX123 HRN CONN ASSY 66 CKT OPT9 KEY C/66 124In Stock
£4.37
£3.97
£3.77
£3.68
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 56 Pos. Shrouded Assy., Qty(56) 0.64mm Square Sig Pins, Harness Side Key Code H, Gray (Au Mate Side Finish) 2,724In Stock
£9.53
£6.91
£6.74
£6.57
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 73 Pos. Shrouded Assy., (72) 0.64mm Square Sig Pins + (1) 2.8mm Pwr Blade, Harness Side Key Code A, Black (Au Mate Side Finish) 1,089In Stock
£16.69
£15.21
£14.98
£14.28
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 66 Pos. Shrouded Assy., Qty(64) 0.64mm Square Sig Pins + Qty(2) 2.8mm Pwr Blades, Harness Side Key Code C, Blue (Ag Mate Side Finish) 1,062In Stock
£4.93
£4.58
£4.33
£3.54
Min.: 1
Mult.: 1


Molex Automotive Connectors 2.54mm Pit., MX123 Header, 80 Pos. Shrouded Assy., Qty(80) 0.64mm Square Sig Pins, Harness Side Key Code H, Gray (Ag Mate Side Finish) 968In Stock
£5.43
£4.04
£3.85
£3.78
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 73 Pos. Shrouded Assy., (72) 0.64mm Square Sig Pins + (1) 2.8mm Pwr Blade, Harness Side Key Code B, Gray (Au Mate Side Finish) 909In Stock
£13.63
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 80 Pos. Shrouded Assy., (80) 0.64mm Square Sig Pins, Harness Side Key Code H, Gray (Au Mate Side Finish) 942In Stock
£10.26
£8.66
£8.61
£8.55
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 80 Pos. Shrouded Assy., (80) 0.64mm Square Sig Pins, Harness Side Key Code G, Blue (Au Mate Side Finish) 741In Stock
£12.43
£10.96
£10.84
£10.76
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 66 Pos. Shrouded Assy., Qty(64) 0.64mm Square Sig Pins + Qty(2) 2.8mm Pwr Blades, Harness Side Key Code A, Black (Au Mate Side Finish) 814In Stock
£10.91
£10.04
£9.90
£9.76
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 22 AWG B WIND REEL OF 1000
15,000In Stock
Reel
£0.052
£0.051
Min.: 1,000
Mult.: 1,000
: 1,000
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 73 Pos. Shrouded Assy., (72) 0.64mm Square Sig Pins + (1) 2.8mm Pwr Blade, Harness Side Key Code C, Blue (Au Mate Side Finish) 80In Stock
£12.48
£11.73
£11.50
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 0.64mm Grommet Seal Plug 499,137In Stock
£0.09
£0.075
£0.067
£0.064
Min.: 1
Mult.: 1
Molex Crimpers / Crimping Tools PremiumGrade Hand Crimp Tool for 2.54mm MX64 Terminals, 22-18 AWG 33In Stock
£576.23
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 56 Pos. Shrouded Assy., (56) 0.64mm Square Sig Pins, Harness Side Key Code G, Blue (Au Mate Side Finish) 1,874In Stock
£9.75
£8.70
£8.51
£8.18
Min.: 1
Mult.: 1


Molex Automotive Connectors 2.54mm Pit., MX123 Header, 73 Pos. Shrouded Assy., Qty(72) 0.64mm Square Sig Pins + Qty(1) 2.8mm Pwr Blade, Harness Side Key Code A, Black (Ag Mate Side Finish) 610In Stock
£6.20
£6.16
£6.04
£4.98
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit. MX64 Terminal, Gold (Au) Pltg, 22 AWG, Left Reel Payoff, Also used w/ MX123 Female Recept. Housing
20,000In Stock
Reel
£0.073
Min.: 10,000
Mult.: 10,000
: 10,000
Molex Automotive Connectors 2.54mm Pit. MX64 Terminal, Gold (Au) Pltg, 20-18 AWG, Right Reel Payoff, Also used w/ MX123 Female Recept. Housing
36,000In Stock
216,000Expected 31/12/2026
Reel
£0.071
Min.: 9,000
Mult.: 9,000
: 9,000
Molex Automotive Connectors MX150 Mat-Sealed Male Conn. Assy., Dual Row, 12 Pos., Keying Option C, w/out Conn. Pos. Assurance, Dark Gray 994In Stock
£2.65
£2.25
£2.01
£1.91
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 73/80 Circuit Dress Cover 4,609In Stock
5,200Expected 16/11/2026
£1.41
£1.26
£1.16
£0.978
Min.: 1
Mult.: 1
Molex Extraction, Removal & Insertion Tools Extraction Tool for SPOX, MX64, Ditto, MX150CE, Milli-Grid Terminals 102In Stock
£64.69
£60.77
£58.81
£57.61
Min.: 1
Mult.: 1
Molex Automotive Connectors 2.54mm Pit., MX123 Header, 73 Pos. Shrouded Assy., Qty(72) 0.64mm Square Sig Pins + Qty(1) 2.8mm Pwr Blade, Harness Side Key Code B, Gray (Ag Mate Side Finish) 487In Stock
£5.27
£5.18
£5.17
£5.16
Min.: 1
Mult.: 1
Molex Automotive Connectors MX64 F TERM 18-20AWG B WIND Loose PC
26,748In Stock
£0.188
£0.162
£0.142
£0.134
Min.: 1
Mult.: 1
Molex Automotive Connectors MX123 49/56 Circuit Dress Cover 6,215In Stock
£0.421
£0.358
£0.299
£0.282
Min.: 1
Mult.: 1
Molex Crimpers / Crimping Tools Hand Tool for MX64 ISO Terminal 13In Stock
15Expected 01/02/2027
£446.65
£432.18
Min.: 1
Mult.: 1