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MX123 Automotive Connectors

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Accessory Type	Number of Positions	Pitch	Gender	Mounting Style	Termination Style	Contact Plating	Color	Series	Packaging
Automotive Connectors MX123 WIRE DRESS COVER 66/73/80 CKT 34565-0005 Molex 1: $0.67 17,026In Stock 5,274On Order New Product	Mfr. Part No. 34565-0005 Mouser Part No 538-34565-0005 New Product	Molex	Automotive Connectors MX123 WIRE DRESS COVER 66/73/80 CKT	Datasheet	17,026In Stock 5,274On Order On Order Ship Dates Mfr. No: 34565-0005 Stock: 17,026 Can Dispatch Immediately On Order: 1,200 Pending 3,800 Expected 09/11/2026 274 Expected 12/11/2026 Factory Lead Time: 10 Weeks	$0.67 $0.583 $0.533 $0.481 View $0.438 $0.363 $0.315 $0.288 $0.278	Min.: 1 Mult.: 1										34565
Automotive Connectors MX123 HRN CONN ASSY 80 CKT OPT0 KEY G/80 Molex 216738-0001 216738-0001 Molex 1: $4.80 144In Stock 144Expected 06/11/2026 New Product	Mfr. Part No. 216738-0001 Mouser Part No 538-216738-0001 New Product	Molex	Automotive Connectors MX123 HRN CONN ASSY 80 CKT OPT0 KEY G/80	Datasheet	144In Stock 144Expected 06/11/2026	$4.80 $4.37 $4.14 $3.85 View $3.37 $3.27 $2.80 $2.63 Quote	Min.: 1 Mult.: 1										216738
Automotive Connectors MX123 HRN CONN ASSY 73 CKT OPT0 KEY B/73 Molex 216739-0002 216739-0002 Molex 1: $4.81 384In Stock New Product	Mfr. Part No. 216739-0002 Mouser Part No 538-216739-0002 New Product	Molex	Automotive Connectors MX123 HRN CONN ASSY 73 CKT OPT0 KEY B/73		384In Stock	$4.81 $4.38 $4.15 $3.86 View $3.37 $2.93	Min.: 1 Mult.: 1										216739
Automotive Connectors MX123 HRN CONN ASSY 66 CKT OPT9 KEY C/66 Molex 216741-0004 216741-0004 Molex 1: $5.82 121In Stock New Product	Mfr. Part No. 216741-0004 Mouser Part No 538-216741-0004 New Product	Molex	Automotive Connectors MX123 HRN CONN ASSY 66 CKT OPT9 KEY C/66 Learn More about Molex mx123 sealed connectors	Datasheet	121In Stock	$5.82 $5.29 $5.02 $4.90 View $4.67 $4.07 $3.55 $3.45 $3.32	Min.: 1 Mult.: 1										216741
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) 31386-2002 Molex 1: $12.70 2,724In Stock	Mfr. Part No. 31386-2002 Mouser Part No 538-31386-2002	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) Learn More about Molex mx123 sealed connectors	Datasheet	2,724In Stock	$12.70 $9.21 $8.98 $8.75 View $8.58 $7.28	Min.: 1 Mult.: 1	Headers		56 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Gray	31386
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) 31387-2014 Molex 1: $22.23 1,089In Stock	Mfr. Part No. 31387-2014 Mouser Part No 538-31387-2014	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) Learn More about Molex transportation solutions	Datasheet	1,089In Stock	$22.23 $20.25 $19.95 $19.02 View $18.12 $16.22 $15.48 Quote	Min.: 1 Mult.: 1	Headers		73 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Black	31387	Bulk
Automotive Connectors MX123 HRN CONN ASSY 73 CKT OPT0 KEY C/73 Molex 216739-0003 216739-0003 Molex 1: $4.81 218In Stock New Product	Mfr. Part No. 216739-0003 Mouser Part No 538-216739-0003 New Product	Molex	Automotive Connectors MX123 HRN CONN ASSY 73 CKT OPT0 KEY C/73	Datasheet	218In Stock	$4.81 $4.38 $4.15 $3.86 View $3.37 $2.93 $2.86 $2.71 Quote	Min.: 1 Mult.: 1										216739
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) 31387-8006 Molex 1: $6.57 1,062In Stock	Mfr. Part No. 31387-8006 Mouser Part No 538-31387-8006	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) Learn More about Molex mx123 sealed connectors	Datasheet	1,062In Stock	$6.57 $6.11 $5.77 $4.71 View $4.68 $4.65 $4.51 $4.29	Min.: 1 Mult.: 1	Headers		66 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Silver	Blue	31387
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) 31387-4018 Molex 1: $7.23 968In Stock	Mfr. Part No. 31387-4018 Mouser Part No 538-31387-4018	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) Learn More about Molex mx123 sealed connectors	Datasheet	968In Stock	$7.23 $5.38 $5.13 $5.04 View $4.90 $4.69 $4.63	Min.: 1 Mult.: 1	Headers		80 Position	2.54 mm (0.1 in)	Plug (Male)	SMD/SMT	Solder Pin	Silver	Gray	31387
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) 31387-4009 Molex 1: $13.66 942In Stock	Mfr. Part No. 31387-4009 Mouser Part No 538-31387-4009	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) Learn More about Molex transportation solutions	Datasheet	942In Stock	$13.66 $11.54 $11.46 $11.38 View $11.27 $10.11 $9.97 Quote	Min.: 1 Mult.: 1	Headers		80 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Gray	31387	Bulk
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) 31387-2002 Molex 1: $17.57 909In Stock	Mfr. Part No. 31387-2002 Mouser Part No 538-31387-2002	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) Learn More about Molex transportation solutions	Datasheet	909In Stock	$17.57 $16.56 $15.08 $14.62 Quote Quote	Min.: 1 Mult.: 1	Headers		73 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Gray	31387	Bulk
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) 31387-4001 Molex 1: $16.56 741In Stock	Mfr. Part No. 31387-4001 Mouser Part No 538-31387-4001	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) Learn More about Molex transportation solutions	Datasheet	741In Stock	$16.56 $14.60 $14.44 $14.33 View $13.05 $10.78 $10.43 $9.91	Min.: 1 Mult.: 1	Headers		80 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Blue	31387	Bulk
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) 31387-8001 Molex 1: $14.54 814In Stock	Mfr. Part No. 31387-8001 Mouser Part No 538-31387-8001	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) Learn More about Molex mx123 sealed connectors	Datasheet	814In Stock	$14.54 $13.37 $13.19 $13.00 View $12.68 $10.79 $9.58	Min.: 1 Mult.: 1	Headers		66 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Black	31387
Automotive Connectors MX123 CONN ASSY 56 CKT GRY OPT0 KEY H/56 Molex 216742-0002 216742-0002 Molex 1: $4.79 864In Stock New Product	Mfr. Part No. 216742-0002 Mouser Part No 538-216742-0002 New Product	Molex	Automotive Connectors MX123 CONN ASSY 56 CKT GRY OPT0 KEY H/56		864In Stock	$4.79 $4.35 $4.12 $3.84 View $3.36 $3.26 $2.79 $2.62 Quote	Min.: 1 Mult.: 1										216742
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) 31387-2003 Molex 1: $16.62 80In Stock	Mfr. Part No. 31387-2003 Mouser Part No 538-31387-2003	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) Learn More about Molex transportation solutions	Datasheet	80In Stock	$16.62 $15.63 $15.16 $14.76 View $14.64 $14.13 $13.46	Min.: 1 Mult.: 1	Headers		73 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Blue	31387
Automotive Connectors MX123 0.64mm Grommet Seal Plug 34586-0001 Molex 1: $0.12 496,037In Stock	Mfr. Part No. 34586-0001 Mouser Part No 538-34586-0001	Molex	Automotive Connectors MX123 0.64mm Grommet Seal Plug Learn More about Molex mx64 sealed connectors	Datasheet	496,037In Stock	$0.12 $0.10 $0.089 $0.085 View $0.076 $0.072 $0.068	Min.: 1 Mult.: 1	Accessories	Connector Seal			Plug (Male)				Gray	34586
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) 31386-2001 Molex 1: $12.99 1,874In Stock	Mfr. Part No. 31386-2001 Mouser Part No 538-31386-2001	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) Learn More about Molex transportation solutions	Datasheet	1,874In Stock	$12.99 $11.59 $11.34 $10.89 View $10.50 $9.44 $9.43 $9.07 Quote	Min.: 1 Mult.: 1	Headers		56 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Blue	31386	Bulk
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) 31387-2034 Molex 1: $8.25 610In Stock	Mfr. Part No. 31387-2034 Mouser Part No 538-31387-2034	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) Learn More about Molex mx123 sealed connectors	Datasheet	610In Stock	$8.25 $8.21 $8.05 $6.63 View $6.27 $5.20 Quote	Min.: 1 Mult.: 1	Headers		73 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Silver	Black	31387
Automotive Connectors MX123 73/80 Circuit Dress Cover 34565-0003 Molex 1: $1.88 4,609In Stock 5,200Expected 16/11/2026	Mfr. Part No. 34565-0003 Mouser Part No 538-34565-0003	Molex	Automotive Connectors MX123 73/80 Circuit Dress Cover Learn More about Molex transportation solutions	Datasheet	4,609In Stock 5,200Expected 16/11/2026	$1.88 $1.67 $1.55 $1.30 View $1.22 $1.17 $1.08 $1.05	Min.: 1 Mult.: 1	Accessories	Cover							Black	34565	Bulk
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) 31387-2032 Molex 1: $7.02 487In Stock	Mfr. Part No. 31387-2032 Mouser Part No 538-31387-2032	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) Learn More about Molex mx123 sealed connectors	Datasheet	487In Stock	$7.02 $6.89 $6.88 $6.87 View $6.86 $6.60 $5.50 $4.33 $4.31	Min.: 1 Mult.: 1	Headers		73 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Silver	Gray	31387
Automotive Connectors MX123 49/56 Circuit Dress Cover 34575-0003 Molex 1: $0.56 6,215In Stock	Mfr. Part No. 34575-0003 Mouser Part No 538-34575-0003	Molex	Automotive Connectors MX123 49/56 Circuit Dress Cover Learn More about Molex transportation solutions	Datasheet	6,215In Stock	$0.56 $0.477 $0.399 $0.375 View $0.36 $0.342 $0.302 $0.284 $0.274	Min.: 1 Mult.: 1	Accessories								Black	34575	Bulk
Automotive Connectors 2.54mm Pit., MX123 Header, 56 Pos. Shrouded Assy., Qty(56) 0.64mm Square Sig Pins, Harness Side Key Code H, Gray (Ag Mate Side Finish) 31386-2021 Molex 1: $12.97 1In Stock	Mfr. Part No. 31386-2021 Mouser Part No 538-31386-2021	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 (Ag Mate Side Finish) Learn More about Molex mx123 sealed connectors	Datasheet	1In Stock	$12.97 $12.56 $12.11 $11.62 View $5.80 $5.19 $4.93 $3.84 $3.80	Min.: 1 Mult.: 1	Headers		56 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Silver	Gray	31386
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 (Au Mate Side Finish) 31387-8003 Molex 1: $17.88 217In Stock	Mfr. Part No. 31387-8003 Mouser Part No 538-31387-8003	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 (Au Mate Side Finish) Learn More about Molex mx123 sealed connectors	Datasheet	217In Stock	$17.88 $17.77 $17.44 $17.15 View $16.87 $8.33 $7.81 $7.61 Quote	Min.: 1 Mult.: 1	Headers		66 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Gold	Blue	31387
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 (Ag Mate Side Finish) 31387-8004 Molex 1: $6.35 192In Stock	Mfr. Part No. 31387-8004 Mouser Part No 538-31387-8004	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 (Ag Mate Side Finish) Learn More about Molex mx123 sealed connectors	Datasheet	192In Stock	$6.35 $5.39 $5.37 $4.26 View $4.05 $3.83 $3.62	Min.: 1 Mult.: 1	Headers		66 Position	2.54 mm (0.1 in)	Pin (Male)	Through Hole	Solder Pin	Silver	Black	31387
Automotive Connectors MX123 HRN CONN 49CKT OPT9 KY A/49 34576-1303 Molex 1: $23.27 26In Stock	Mfr. Part No. 34576-1303 Mouser Part No 538-34576-1303	Molex	Automotive Connectors MX123 HRN CONN 49CKT OPT9 KY A/49 Learn More about Molex sealed connector solution	Datasheet	26In Stock	$23.27 $21.67 $20.95 $20.36 View $20.13 $19.75 $18.44 Quote	Min.: 1 Mult.: 1	Housings		49 Position		Receptacle (Female)	Cable Mount / Free Hanging	Crimp			34576

MX123 Automotive Connectors

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MX123 Automotive Connectors

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