Wiring Harness & Electrical Components for Mercruiser (5.0l / 5.7l Alpha & Bravo Gen+) Engine

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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

Engine Diagram

Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

#1 — 861515A 2 — HARNESS ASSEMBLY, Wiring (1 required per assembly) — (5.0L Alpha) (Mando Alternator)
		84-861515A 2 - Wiring Harness [ More info ] Unavailable
#1 — 862163T 1 — HARNESS ASSEMBLY, Wiring (1 required per assembly) — (5.0L Alpha) (Delco Alternator) SN# 0M330622 & Below
		84-862163T 1 - Harness Assembly [ More info ] Unavailable
		84-862163T03 - Harness Assembly [ More info ] $376.25 Available to Order: Usually ships within 10 days.
#1 — 862163T02 — HARNESS ASSEMBLY, Wiring (1 required per assembly) — (5.0L Alpha) (Delco Alternator) SN# 0M330623 & Up
		84-862163T02 - Harness Assembly [ More info ] $324.65 Available to Order: Usually ships within 10 days.
#1 — 861236A 2 — HARNESS ASSEMBLY, Wiring (1 required per assembly) — (5.0L Bravo) (Mando Alternator)
		84-861236A 2 - Wiring Harness [ More info ] $239.40 10+ In Stock.
#1 — 862575T 1 — HARNESS ASSEMBLY, Wiring (1 required per assembly) — (5.0L Bravo) (Delco Alternator) SN# 0M330622 & Below
		84-862575T 1 - HARNESS ASSEMBLY [ More info ] Unavailable
		84-862575T03 - Wire Harness Assembly [ More info ] $471.43 Available to Order: Usually ships within 10 days.
#1 — 862575T02 — HARNESS ASSEMBLY, Wiring (1 required per assembly) — (5.0L Bravo) (Delco Alternator) SN# 0M330623 & Up
		84-862575T02 - Wiring Harness [ More info ] $422.21 Available to Order: Usually ships within 10 days.
#2 — 26079A 2 — PLATE KIT, Wire Harness Mount (1 required per assembly)
		26079A 2 - Plate Kit [ More info ] $19.50 Available to Order: Usually ships within 10 days.
#3 — 15001 — SCREW, (#8-16 x .875) (3 required per assembly)
		10-15001 - Screw [ More info ] $1.50 $0.85 4 In Stock.
#4 — 807453T — BRACKET, Harness Mounting/Lifting Eye (1 required per assembly)
		807453T - Ord 865480T [ More info ] Unavailable
		865480T - Bracket [ More info ] $46.50 Available to Order: Usually ships within 10 days.
#5 — 98261 — SCREW, (.375-16 x .750) (2 required per assembly)
		10-98261 - Screw [ More info ] $1.20 10 In Stock.
#6 — 805328 1 — FITTING, Elbow (90 Degree - .125) (90 Degree) (1 required per assembly)
		22-805328 1 - Elbow [ More info ] $17.40 Available to Order: Usually ships within 10 days.
#6 — 32974 — FITTING, (.125-27) Adaptor, Straight (1 required per assembly)
		22-32974 - Fitting [ More info ] $5.50 Available to Order: Usually ships within 10 days.
#7 — 815425T — SENDER ASSEMBLY (1 required per assembly)
		815425T - Sender [ More info ] Unavailable
		8M0068784 - Sender Assembly [ More info ] $88.50 In Stock
		18-5899 - Sender, 982650, 815425T [ More info ] $42.99 $38.54 10+ In Stock.
#7 — 37293T — SENDER ASSEMBLY (OPT required per assembly) — (Dual Station)
		37293T - Oil Pressure Sender [ More info ] $202.49 1 In Stock.
#8 — 806490T — SENDER (1 required per assembly)
		806490T - Water Temperature Sender [ More info ] $39.50 3 In Stock.
		18-5897 - Sender, 97257A1 [ More info ] $35.99 $32.24 10+ In Stock.
#8 — 49734 — SENDER (OPT required per assembly) — (Dual Station)
		49734 - Sender Assembly [ More info ] $86.92 Available to Order: Usually ships within 10 days.
#11 — 805024 — SWITCH, Oil Pressure (1 required per assembly) — (5.0L) SN# OM330622 & Below
		87-805024 - Oil Pressure Switch [ More info ] Unavailable
		87-864252A01 - Oil Sensor Kit [ More info ] Unavailable
		1300-03773 - Oil Pressure Sensor, 87-864252A01 [ More info ] $36.99 2 In Stock.
		87-8M0210755 - Oil Sensor Kit [ More info ] $56.75 1 In Stock.
#11 — 864252 — SWITCH, Oil Pressure (1 required per assembly) — (5.0L) SN# OM330623 & Up
		87-864252 - Switch Only - no Wiring [ More info ] Unavailable
		87-8M0070108 - Switch [ More info ] $39.50 In Stock
		87-09050 - Oil Pressure Switch [ More info ] $29.49 4 In Stock.
#11 — 864252 — SWITCH, Oil Pressure (1 required per assembly) — (5.7L) SN# 0M331444 & Up
#12 — 28624 — FITTING, T (1 required per assembly)
		22-28624 - Fitting [ More info ] Unavailable
		22-28624 1 - Fitting -tee [ More info ] $13.00 1 In Stock.
#13 — 805605A 1 — SWITCH ASSEMBLY (1 required per assembly)
		87-805605A 1 - Switch Kit [ More info ] $40.58 6 In Stock.
#14 — 26996 — LOCKWASHER, (#10) Stainless Steel (1 required per assembly)
		13-26996 - LockWasher - Priced Individually [ More info ] $1.20 10+ In Stock.
#15 — 68219 — NUT, (#10-32) Stainless Steel (1 required per assembly)
		11-68219 - Nut (#10-32) [ More info ] $2.90 10+ In Stock.
#16 — 805218T — SENSOR (1 required per assembly)
		805218T - Temperature Sensor [ More info ] $67.58 In Stock
		18-7600 - Sensor 805218T [ More info ] $57.49 $52.08 4 In Stock.
		E13-0009 - Coolant Temp Sensor [ More info ] $37.53 2 In Stock.
#17 — 816492A 6 — ALARM KIT (1 required per assembly)
		816492A 6 - Alarm Kit [ More info ] $119.46 10+ In Stock.
#18 — 805059 — FITTING (1 required per assembly)
		22-805059 - Bushing [ More info ] $17.50 In Stock
#19 — 805368T — BRACKET, Electrical (1 required per assembly)
		805368T - Bracket [ More info ] Unavailable
		899719T01 - Bracket [ More info ] $36.70 Available to Order: Usually ships within 10 days.
#20 — 79023A56 — FUSE ASSEMBLY, 55 Ampere (1 required per assembly)
		88-79023A56 - Fuse Assembly -55 AMP [ More info ] Unavailable
		88-79023T56 - Fuse Assembly -55 Amp [ More info ] $45.31 2 In Stock.
#20 — 79023A91 — FUSE ASSEMBLY, 90 Ampere (1 required per assembly)
		88-79023A91 - Fuse Assembly -90 Amp [ More info ] Unavailable
		18-8220 - Fuse Kit, 90 Amp [ More info ] $40.99 $33.93 In Stock
		88-8M0207795 - FUSE ASSY-90 AMP [ More info ] $49.25 In Stock
#21 — 21825 — NUT, (.250-28) (1 required per assembly)
		11-21825 - Nut, (1/4x28) [ More info ] $1.60 10+ In Stock.
#22 — 806950 — BREAKER, Circuit - 50 Ampere (1 required per assembly)
		88-806950 - Circuit Breaker 50 amp w/ screw connections. Ord 88-11178A01 [ More info ] Unavailable
#23 — 68513 — SCREW, (#10-32 x .375) Stainless Steel (2 required per assembly)
		10-68513 - Screw [ More info ] $1.30 10 In Stock.
#25 — 57583 — SCREW, (#8-32 x .375) (2 required per assembly)
		10-57583 - Screw - Priced Individually [ More info ] $1.11 4 In Stock.
		10-57583T - Screw - Priced Individually [ More info ] $1.30 10+ In Stock.
#26 — 96158T — SOLENOID (1 required per assembly)
		89-96158T - Solenoid, NLA Order 8M0185622 [ More info ] Unavailable
		18-5817 - Solenoid 89-96158 [ More info ] $28.99 $24.87 10+ In Stock.
		SW058 - Solenoid [ More info ] $27.55 10+ In Stock.
		8M0185622 - Solenoid, Starter or Trim [ More info ] $35.17 5 In Stock.
#27 — 805564 — SCREW, (.250-20 x .750) (3 required per assembly) — (Alpha Engines)
		10-805564 - Screw [ More info ] $1.60 4 In Stock.
#28 — 805459 — STUD, Mercathode Mounting (1 required per assembly) — (Bravo Engines)
		16-805459 - Stud [ More info ] $10.70 Available to Order: Usually ships within 10 days.
#29 — 26992 — LOCKWASHER, (.250) Stainless Steel (2 required per assembly)
		13-26992 - LockWasher - Priced Individually [ More info ] $1.20 10+ In Stock.
#30 — 94330 — NUT, (.250-20) Brass (2 required per assembly)
		11-94330 - Nut, Brass (1/4-20) [ More info ] $1.60 Available to Order: Usually ships within 10 days.
#33 — 97861 — INSULATOR (1 required per assembly)
		85-97861 - Insulator [ More info ] $5.00 10+ In Stock.
#34 — 861516 — BRACKET (1 required per assembly)
		861516 - Ignition Control Module Bracket [ More info ] $13.85 Available to Order: Usually ships within 10 days.
#35 — 861459T 1 — ICM MODULE, Ignition Control Module (1 required per assembly) — (5.0L Alpha)
		861459T 1 - MODULE-ICM [ More info ] Unavailable
		861459T02 - Ignition Control Module [ More info ] Unavailable
#35 — 861460T 1 — ICM MODULE, Ignition Control Module (1 required per assembly) — (5.0L Bravo)
		861460T 1 - MODULE-ICM [ More info ] Unavailable
		861460T02 - Ignition Control Module [ More info ] Unavailable
#35 — 861253T 1 — ICM MODULE, Ignition Control Module (1 required per assembly) — (5.7L Alpha)
		861253T 1 - Ignition Control Module [ More info ] Unavailable
		861253T02 - Ignition Control Module [ More info ] Unavailable
#35 — 861254T 1 — ICM MODULE, Ignition Control Module (1 required per assembly) — (5.7L Bravo)
		861254T 1 - Ignition Control Module [ More info ] Unavailable
		861254T02 - Ignition Control Module [ More info ] Unavailable
#36 — 861520 — SCREW, (#10-32 x .500) (2 required per assembly) — (5.0L Alpha)
		10-861520 - Screw [ More info ] $1.60 Available to Order: Usually ships within 10 days.
#37 — 24323 — SET SCREW, (.250-20 x 1.25) (3 required per assembly)
		10-24323 - Screw - Priced Individually [ More info ] $4.00 8 In Stock.
#38 — 96457 — WASHER, Phenolic (.27 x .81 x .062) (3 required per assembly)
		12-96457 - Phenolic Washer [ More info ] $1.60 Available to Order: Usually ships within 10 days.
#39 — 35462 — WASHER, (.2656 x .625 x .0625) Stainless Steel (3 required per assembly)
		12-35462 - Washer, (.2656 X .625 X .0625) Stainless Steel [ More info ] $1.70 10+ In Stock.
#40 — 64015 — NUT, (.250-20) (3 required per assembly)
		11-64015 - Nut (1 /4-20) [ More info ] $2.70 Available to Order: Usually ships within 10 days.
#41 — 95084A 9 — CABLE ASSEMBLY, (91.00 Inches) Red/Purple Strip (1 required per assembly) — (Bravo Engines)
		84-95084A 9 - Cable Assembly [ More info ] $29.33 Available to Order: Usually ships within 10 days.
#42 — 79091 — FUSE, 20 Ampere (1 required per assembly) — (Bravo Engines)
		88-79091 - Fuse - 20 Amp - Priced Individually [ More info ] $5.54 7 In Stock.
		888M0207796 - FUSE-20 AMP Note: Priced Individually [ More info ] $7.90 Available to Order: Usually ships within 10 days.
#43 — 95084A10 — CABLE ASSEMBLY, (5.00 Inches) Red (1 required per assembly) — (Bravo Engines)
		84-95084A10 - Cable Assembly [ More info ] $9.10 Available to Order: Usually ships within 10 days.
#44 — 861517 — BRACKET (1 required per assembly) — (5.0L Bravo And 5.7 Alpha/Bravo)
		861517 - Bracket -Module [ More info ] $18.60 Available to Order: Usually ships within 10 days.
#45 — 41408 — SCREW, (#10-32 x 1.50) (2 required per assembly) — (5.0L Bravo And 5.7 Alpha/Bravo)
		10-41408 - Screw [ More info ] $3.30 Available to Order: Usually ships within 10 days.
#46 — 806611T — MODULE, Knock Control (1 required per assembly) — (5.0L Bravo And 5.7 Alpha/Bravo)
		806611T - Knock Control Module [ More info ] Unavailable
#47 — 806612T — SENSOR, Knock (1 required per assembly) — (5.0L Bravo And 5.7 Alpha/Bravo)
		806612T - Knock Sensor [ More info ] $190.42 In Stock
		18-7677 - Sensor, 806612T, 3850357 [ More info ] $106.29 $96.26 4 In Stock.
#48 — 806705 1 — FITTING, Dual (1 required per assembly) — (5.0L Bravo And 5.7 Alpha/Bravo)
		22-806705 1 - Y Fitting [ More info ] $95.50 In Stock
#49 — 864388 — HARNESS ASSEMBLY, Oil Sensor Adaptor (1 required per assembly)
		84-864388 - Harness Adaptor [ More info ] $33.92 $28.83 2 In Stock.
#50 — 806608A 1 — PLUG KIT, (.500-13) Royal Blue, Fitting (1 required per assembly)
		22-806608A 1 - Plug Kit, Priced Individually [ More info ] Unavailable
		22-806608A02 - Plug Assembly - Priced Individually [ More info ] Unavailable
		18-4226 - Blue Drain Plug, 22-806608A1 [ More info ] $4.09 10+ In Stock.
		22-806608Q01 - Plug - Priced Individually [ More info ] $9.50 Available to Order: Usually ships within 10 days.
		22-8M0119211 - Drain Plug, Priced Individually, .5 inch x 13 [ More info ] $9.40 10+ In Stock.
#51 — 62706 — O-RING (1 required per assembly)
		25-62706 - O-ring, (.426 X .070) [ More info ] $2.30 10+ In Stock.
		18-7102-9 - O-Ring (PK5) 307450 [ More info ] $10.99 $10.69 2 In Stock.