Parts for Mercury Marine 90 HP (3 Cylinder) Crankshaft, Pistons & Connecting Rods (#646-818846)

Revise Search: All Models > 90 HP (3 Cylinder) > 9589039 - 9793576 (Belgium) > Crankshaft, Pistons & Connecting Rods (#646-818846)

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• View diagram and parts list below.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

Engine section

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	472-9001A 3	CRANKSHAFT ASSEMBLY (1 required per assembly)
		472-9001A 3 - 472-9001A 3 - CRANKSHAFT ASSEMB O [ More info ] Unavailable Replaced by 472-9001T 3
		472-9001T 3 - CrankShaft Assembly, NLA [ More info ] $1,000.00 10+ in stock.
#2	30-43011	BALL BEARING, Lower (1 required per assembly)
		30-43011 - Ball Bearing [ More info ] $55.40 1 in stock.
		30-43011T - Ball Bearing [ More info ] $78.25 Available to order: Usually ships within 8 days.
		18-1346 - Bearing, 30-43011T [ More info ] $101.49 $81.49 1 in stock.
#3	78661 1	WEAR SLEEVE (1 required per assembly)
		78661 1 - Sleeve [ More info ] $16.90 $14.47 2 in stock.
#4	25-35126	O-RING (1 required per assembly)
		25-35126 - O-Ring - Priced Individually [ More info ] $2.10 10+ in stock.
#5	39-818412A 4	RING ASSEMBLY (1 required per assembly)
		39-818412A 4 - Rings - 4 - Standard [ More info ] $52.17 Available to order: Usually ships within 8 days.
#6	28-91800	KEY, Woodruff (2 required per assembly)
		28-91800 - Key - Priced Individually [ More info ] $1.65 10+ in stock.
#7	43-43019A 1	DRIVER GEAR (1 required per assembly)
		43-43019A 1 - Gear Kit [ More info ] $54.08 Available to order: Usually ships within 8 days.
#8	31-43013A 1	ROLLER BEARING ASSEMBLY, Upper (1 required per assembly)
		31-43013A 1 - 31-43013A 1 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by 31-43013T 1
		31-43013T 1 - 31-43013T 1 - BEARING ASSY O [ More info ] Unavailable Replaced by 31-43013T 3
		31-43013T 3 - Bearing Assembly [ More info ] $83.50 Available to order: Usually ships within 8 days.
#9	26-43993	SEAL, Oil (1 required per assembly)
		26-43993 - Seal [ More info ] $22.00 $18.84 2 in stock.
		18-0523 - Seal, 26-43993 [ More info ] $16.49 $13.49 2 in stock.
#10	25-823683	O-RING (1 required per assembly)
		25-823683 - O-Ring [ More info ] $2.20 1 in stock.
		18-7414-9 - O-Ring (PK5) 25-64067 [ More info ] $12.45 Available to order: Usually ships within 8 days.
#11	42943A 1	ROLLER BEARING ASSEMBLY (2 required per assembly)
		42943A 1 - Bearing Kit [ More info ] $112.60 $96.42 Available to order: Usually ships within 8 days.
#12	777-815965A 4	PISTON ASSEMBLY, Standard (3 required per assembly)
		777-815965A 4 - 777-815965A 4 - PISTON ASSEMBLY O [ More info ] Unavailable Replaced by 777-815965T 4
		777-815965T 4 - Piston Assembly [ More info ] $137.51 1 in stock.
		18-4623 - Piston, std., 777-815965T4 [ More info ] $182.49 $135.06 In stock
#12	777-815965A 5	PISTON ASSEMBLY (.015 Oversize) (AR required per assembly) (As Required)
		777-815965A 5 - Piston Assembly .015 [ More info ] $151.92 Available to order: Usually ships within 8 days.
		18-4624 - Piston .777-815965A5.015 [ More info ] $145.49 4 in stock.
#12	777-815965A 6	PISTON ASSEMBLY (.030 Oversize) (AR required per assembly) (As Required)
		777-815965A 6 - PISTON ASSEMBLY O NLA [ More info ] Unavailable
		18-4625 - Piston .777-815965A6 .03 [ More info ] $188.99 $140.38 2 in stock.
#13	40-52035	RING (6 required per assembly)
		40-52035 - Lock Ring - Priced Individually [ More info ] $1.25 10+ in stock.
		53-857196 - Lock Ring - Priced Individually [ More info ] $2.40 $1.62 10+ in stock.
		18-4294-9 - Clips, PK2 [ More info ] $4.98 $3.49 2 in stock.
#14	39-96170A12	PISTON RING ASSEBMLY, Standard (1 required per assembly)
		39-96170A12 - Rings - 12 Pcs [ More info ] $234.92 $157.87 3 in stock.
		18-3979 - Rings, 2 Rings Only, 39-96170A12 [ More info ] $31.49 $24.62 1 in stock.
#14	39-96170A 3	PISTON RING ASSEMBLY (.015 Oversize) (AR required per assembly) (As Required)
		39-96170A 3 - Rings - 6-.015, NLA [ More info ] $117.50 10+ in stock.
#14	39-96170A 4	PISTON RING ASSEMBLY (.030 Oversize) (AR required per assembly) (As Required)
		39-96170A 4 - Rings - 6-.030 [ More info ] $167.41 $112.51 7 in stock.
		18-3981 - Rings, 39-96170A4 [ More info ] $16.82 $12.98 Available to order: Usually ships within 8 days.
#15	646-818846A 3	CONNECTING ROD ASSEMBLY (3 required per assembly)
		646-818846A 3 - 646-818846A 3 - CONNECTING ROD AS O [ More info ] Unavailable Replaced by 646-818846T 6
		646-818846T 6 - Connecting Rod [ More info ] $294.59 Available to order: Usually ships within 8 days.
#16	12-812876	WASHER (6 required per assembly)
		12-812876 - Thrust Washer [ More info ] $2.22 5 in stock.
		12-8M0012298 - Thrust Washer [ More info ] $3.80 4 in stock.
#17	29-818391	NEEDLE BEARING (87 required per assembly)
		29-818391 - 29-818391 - BEARING Needle O [ More info ] Unavailable Replaced by 29-818391001
		29-818391001 - Needle - Priced Individually [ More info ] $0.40 10+ in stock.
#18	10-94320	SCREW, (.375-24 x 1.250) (6 required per assembly)
		10-94320 - Screw [ More info ] $6.90 10+ in stock.
#19	31-816567A 1	ROLLER BEARING ASSEMBLY (3 required per assembly)
		31-816567A 1 - 31-816567A 1 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by 31-43012A 1
		31-43012A 1 - 31-43012A 1 - BEARING/CAGE KIT O [ More info ] Unavailable Replaced by 31-43012A04
		31-43012A04 - 31-43012A04 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by 31-844338A01
		31-844338A01 - Bearing Kit [ More info ] $83.90 $71.84 3 in stock.
#-	13589T93	POWERHEAD ASSEMBLY COMPLETE, 75 (1 required per assembly)
		13589T93 - POWERHEAD ASSEMBL O NLA [ More info ] Unavailable
#-	13600T93	POWERHEAD ASSEMBLY COMPLETE, 75 Commercial (1 required per assembly)
		13600T93 - POWERHEAD ASSEMBL O NLA [ More info ] Unavailable
#-	15081T96	POWERHEAD ASSEMBLY COMPLETE, 90 (1 required per assembly)
		15081T96 - POWERHEAD ASSEMBL O NLA [ More info ] Unavailable