Logo

Parts for MerCruiser Race Engine and Drive 525 SC - Gen. VI Sea Water Pump Assembly

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 46-72774A82 PUMP ASSEMBLY, Sea Water - Complete (1 required per assembly)
PUMP ASSY         O NLA 46-72774A82
46-72774A82 PUMP ASSY O NLA
(more info)
    UnavailableUnavailable Parts
#- 22-36382 FITTING, (.250-18) Brass (2 required per assembly)
FITTING (.250-18 22-36382 22-36382
22-36382OEM Part 22-36382 - Plug (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
2 in stock. Explain stock levels
Pipe Plug 18-8111-9
18-8111-9OEM Match 18-8111-9 - Pipe Plug (PK3) (more info) About Sierra Marine $10.77 $7.50 Add to shopping cart
10+ in stock. Explain stock levels
#2 46-72774A89 BODY/IMPELLER KIT, Sea Water Pump (1 required per assembly)
BODY/IMPELLER KIT 46-72774A89 46-72774A89
46-72774A89OEM Part 46-72774A89 - Body/Impeller Kit (more info) About Mercury Marine $159.08 $159.08 Add to shopping cart
3 in stock. Explain stock levels
Water Pump Repair Kit 18-3155
18-3155OEM Match 18-3155 - Water Pump Kit 46-72774A89 (more info) About Sierra Marine $146.99 $117.11 Add to shopping cart
4 in stock. Explain stock levels
#3 27-805215 1 GASKET, Cover To Outer Wear Plate (1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-805215  1 27-805215 1
27-805215 1OEM Part 27-805215 1 - Gasket - Priced Individually (more info) About Mercury Marine $6.50 $3.90 Add to shopping cart
10+ in stock. Explain stock levels
#4 27-94914 GASKET, Body To Wear Plate (2 required per assembly)
GASKET Note: must be ordered in multiples of 5 27-94914 27-94914
27-94914OEM Part 27-94914 - Gasket - Priced Individually (more info) About Mercury Marine $2.50 $2.50 Add to shopping cart
10+ in stock. Explain stock levels
Gasket 18-0386
18-0386OEM Match 18-0386 - Gasket, 27-94914 (more info) About Sierra Marine $2.99 $1.65 Add to shopping cart
1 in stock. Explain stock levels
#5 47-59362 1 IMPELLER (1 required per assembly)
IMPELLER          O - Replaced by 47-59362T 1 47-59362  1
47-59362 1This part has been superseded. IMPELLER O - Replaced by 47-59362T 1
(more info)
    UnavailableUnavailable Parts
IMPELLER 47-59362T 1 47-59362T 1
47-59362T 1OEM Part 47-59362T 1 - Impeller (more info) About Mercury Marine $29.08 $29.08 Add to shopping cart
5 in stock. Explain stock levels
Impeller 18-3087
18-3087OEM Match 18-3087 - Impeller, 47-59362 (more info) About Sierra Marine $28.99 $17.25 Add to shopping cart
10+ in stock. Explain stock levels
IMPELLER   47 59362Q01 47-59362Q01
47-59362Q01OEM Part 47-59362Q01 - Impeller (more info) About Mercury Marine $33.34 $33.34 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 25-94288 QUAD RING, Pump Housing (1 required per assembly)
QUAD RING 25-94288 25-94288
25-94288OEM Part 25-94288 - Ring - Quad (more info) About Mercury Marine $3.10 $3.10 Add to shopping cart
10+ in stock. Explain stock levels
O-Ring 18-7474
18-7474OEM Match 18-7474 - O-Ring 25-94288 (more info) About Sierra Marine $3.99 $3.12 Add to shopping cart
1 in stock. Explain stock levels
#7 821707 1 COVER, Water Pump (1 required per assembly)
821707T1 821707  1  
821707 1OEM Part 821707 1 - Cover (more info) About Mercury Marine $100.00 $100.00 Add to shopping cart
2 in stock. Explain stock levels
COVER 821707T 1  
821707T 1OEM Part 821707T 1 - Cover (more info) About Mercury Marine $221.43 $221.43 Add to shopping cart
1 in stock. Explain stock levels
#8 10-39001 SCREW, (.312-18 x 4.50) (5 required per assembly)
SCREW (.312-18 x 10-39001 10-39001
10-39001OEM Part 10-39001 - Screw (more info) About Mercury Marine $5.30 $5.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#9 12-20084 WASHER, (.328 x .562 x .062) (10 required per assembly)
WASHER (.328 x .5 12-20084 12-20084
12-20084OEM Part 12-20084 - Washer - Priced Individually (more info) About Mercury Marine $2.07 $2.07 Add to shopping cart
10+ in stock. Explain stock levels
#10 94916 WEAR PLATE, Outer (1 required per assembly)
WEAR PLATE 94916 94916
94916OEM Part 94916 - Wear Plate (more info) About Mercury Marine $19.58 $19.58 Add to shopping cart
10+ in stock. Explain stock levels
Wear Plate 18-3351
18-3351OEM Match 18-3351 - Plate 94916 (more info) About Sierra Marine $17.99 $13.33 Add to shopping cart
3 in stock. Explain stock levels
#11 94576 WEAR PLATE, Inner (1 required per assembly)
WEAR PLATE 94576 94576
94576OEM Part 94576 - Wear Plate (more info) About Mercury Marine $19.17 $13.80 Add to shopping cart
10 in stock. Explain stock levels
Wear Plate 18-3350
18-3350OEM Match 18-3350 - Plate 94576 (more info) About Sierra Marine $20.99 $20.99 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 818367A 1 HOUSING ASSEMBLY, Sea Water Pump (1 required per assembly)
HOUSING ASSEMBLY 818367A 1 818367A 1
818367A 1OEM Part 818367A 1 - Housing Assembly (more info) About Mercury Marine $508.67 $508.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 26-90562 SEAL, (1.254 x .312), Oil - Pump Shaft (2 required per assembly)
SEAL (1.254 x .31 26-90562 26-90562
26-90562OEM Part 26-90562 - Seal - Priced Individually (more info) About Mercury Marine $15.30 $15.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
Oil Seal 18-2011
18-2011OEM Match 18-2011 - Seal 26-90562 (more info) About Sierra Marine $13.49 $9.66 Add to shopping cart
10+ in stock. Explain stock levels
#14 818366A 1 SHAFT KIT (1 required per assembly)
SHAFT KIT 818366A 1 818366A 1
818366A 1OEM Part 818366A 1 - Shaft Kit - Water Pump (more info) About Mercury Marine $172.08 $172.08 Add to shopping cart
1 in stock. Explain stock levels
#15 818745A 1 RING KIT (1 required per assembly)
RING KIT 818745A 1 818745A 1
818745A 1OEM Part 818745A 1 - Ring/Washer Kit (more info) About Mercury Marine $29.58 $29.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 30-72961 BEARING, Ball, Pump Shaft (2 required per assembly)
BEARING Ball 30-72961 30-72961
30-72961OEM Part 30-72961 - Ball Bearing (more info) About Mercury Marine $20.30 $17.39 Add to shopping cart
4 in stock. Explain stock levels
Bearing, Ball 18-1398
18-1398OEM Match 18-1398 - Bearing, 30-72961 (more info) About Sierra Marine $16.99 $15.41 Add to shopping cart
4 in stock. Explain stock levels
#17 53-23720 RING, Retaining, Ball Bearing (1 required per assembly)
RING Retaining 53-23720  
53-23720OEM Part 53-23720 - Ring - Retaining (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#18 26-806930 SEAL, Oil - Pump Shaft (1 required per assembly)
SEAL 26-806930 26-806930
26-806930OEM Part 26-806930 - Seal (more info) About Mercury Marine $16.50 $14.12 Add to shopping cart
Available to order:
Usually ships
within 8 days
#19 818365 2 PULLEY, Blue (1 required per assembly)
PULLEY-(BLUE)     O - Replaced by -818365  1  
818365 2This part has been superseded. PULLEY-(BLUE) O - Replaced by -818365 1
(more info)
    UnavailableUnavailable Parts
PULLEY 818365  1 818365  1
818365 1OEM Part 818365 1 - Pulley (more info) About Mercury Marine $142.30 $142.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#20 10-79953A 2 SCREW KIT, (.375-16 x .250) , Plug (1 required per assembly)
SCREW KIT-DRAIN   O - Replaced by 10-79953Q 2 10-79953A 2
10-79953A 2This part has been superseded. SCREW KIT-DRAIN O - Replaced by 10-79953Q 2
(more info)
    UnavailableUnavailable Parts
SCREW KIT @2      O - Replaced by 10-79953Q04 10-79953Q 2
10-79953Q 2This part has been superseded. SCREW KIT @2 O - Replaced by 10-79953Q04
(more info)
    UnavailableUnavailable Parts
SCREW KIT Drain 10-79953Q04 10-79953Q04
10-79953Q04OEM Part 10-79953Q04 - Screw Kit - Priced Individually (more info) About Mercury Marine $5.70 $5.70 Add to shopping cart
10+ in stock. Explain stock levels
DRAIN PLUG 18-2244
18-2244OEM Match 18-2244 - Plug Kit, 10-79953A2 (more info) About Sierra Marine $2.99 $2.07 Add to shopping cart
10+ in stock. Explain stock levels
SCREW-DRAIN Note: must be ordered in multiples of 2   10 79953K04 10-79953K04
10-79953K04OEM Part 10-79953K04 - Drain Screw - Priced Individually (more info) About Mercury Marine $5.70 $5.70 Add to shopping cart
1 in stock. Explain stock levels
#21 12-19183 WASHER, Fiber (1 required per assembly)
12191832 12-19183 12-19183
12-19183OEM Part 12-19183 - Washer-BLK - Priced Individually (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
10+ in stock. Explain stock levels
WASHER-ORAN @15   O - Replaced by 12-19183  3 12-19183  2
12-19183 2This part has been superseded. WASHER-ORAN @15 O - Replaced by 12-19183 3
(more info)
    UnavailableUnavailable Parts
SEAL 12-19183  3 12-19183 3
12-19183 3OEM Part 12-19183 3 - Seal -Blue - Priced Individually (more info) About Mercury Marine $1.00 $1.00 Add to shopping cart
10+ in stock. Explain stock levels
DRAIN GASKET 18-2945-9
18-2945-9OEM Match 18-2945-9 - Gasket 12-19183 2-Pack (more info)
Replaces OEM #0307552
About Sierra Marine $2.78 $1.52 Add to shopping cart
10+ in stock. Explain stock levels
SEAL (4) Note: must be ordered in multiples of 2   12 19183Q02 12-19183Q02
12-19183Q02OEM Part 12-19183Q02 - Seals, Pack of 4 (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
SEAL (4) Note: must be ordered in multiples of 2   12 19183K02 12-19183K02
12-19183K02OEM Part 12-19183K02 - Seal, Pack of 4 (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#22 13-39107 LOCKWASHER, (.312) (5 required per assembly)
LOCKWASHER (.312- 13-39107  
13-39107OEM Part 13-39107 - LockWasher - Priced Individually (more info) About Mercury Marine $1.00 $1.00 Add to shopping cart
10+ in stock. Explain stock levels
#23 11-21908 NUT, (.312-18) (5 required per assembly)
NUT (.312-18) Cad 11-21908 11-21908
11-21908OEM Part 11-21908 - Nut - Priced Individually (more info) About Mercury Marine $2.10 $2.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#24 823185A 2 BRACKET KIT, Sea Water Pump (1 required per assembly)
BRACKET KIT       O - Replaced by -818368A 1  
823185A 2This part has been superseded. BRACKET KIT O - Replaced by -818368A 1
(more info)
    UnavailableUnavailable Parts
BRACKET ASSY      O NLA  
818368A 1 BRACKET ASSY O NLA
(more info)
    UnavailableUnavailable Parts
#25 10-66024 SCREW, (.437-14 x 1.75) (3 required per assembly)
SCREW (.437-14 x 10-66024 10-66024
10-66024OEM Part 10-66024 - Screw - Priced Individually (more info) About Mercury Marine $6.60 $6.60 Add to shopping cart
6 in stock. Explain stock levels
#26 10-28782 SCREW, (.312-18 x .880) (2 required per assembly)
SCREW (.312-18 x 10-28782 10-28782
10-28782OEM Part 10-28782 - Screw - Priced Individually (more info) About Mercury Marine $2.00 $1.12 Add to shopping cart
2 in stock. Explain stock levels
#27 13-26993 LOCKWASHER, (.312) (2 required per assembly)
LOCKWASHER (.312) 13-26993  
13-26993OEM Part 13-26993 - LockWasher - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#28 10-99204 SCREW, (.437-14 x 1.00) (1 required per assembly)
SCREW (.437-14 x 10-99204 10-99204
10-99204OEM Part 10-99204 - Screw (more info) About Mercury Marine $3.60 $3.60 Add to shopping cart
1 in stock. Explain stock levels
#29 43-818381 2 PINION STUD (1 required per assembly)
PINION STUD (.437 43-818381  2 43-818381  2
43-818381 2OEM Part 43-818381 2 - Pinion Stud (more info) About Mercury Marine $15.70 $15.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#30 818380T BUSHING (1 required per assembly)
BUSHING           O - Replaced by -865193  
818380TThis part has been superseded. BUSHING O - Replaced by -865193
(more info)
    UnavailableUnavailable Parts
BUSHING 865193 865193
865193OEM Part 865193 - Bushing (more info) About Mercury Marine $4.20 $4.20 Add to shopping cart
1 in stock. Explain stock levels
#31 818382 PULLEY (1 required per assembly)
PULLEY            O - Replaced by -865598 818382
818382This part has been superseded. PULLEY O - Replaced by -865598
(more info)
    UnavailableUnavailable Parts
PULLEY            O - Replaced by -8M6500024 865598
865598This part has been superseded. PULLEY O - Replaced by -8M6500024
(more info)
    UnavailableUnavailable Parts
PULLEY 8M6500024 8M6500024
8M6500024OEM Part 8M6500024 - Pulley (more info) About Mercury Marine $29.33 $29.33 Add to shopping cart
2 in stock. Explain stock levels
#32 11-817618 NUT, (.437-20) (1 required per assembly)
NUT               O - Replaced by 11-859135  
11-817618This part has been superseded. NUT O - Replaced by 11-859135
(more info)
    UnavailableUnavailable Parts
NUT (.437-20) Bra 11-859135 11-859135
11-859135OEM Part 11-859135 - Nut - Priced Individually (more info) About Mercury Marine $4.20 $4.20 Add to shopping cart
8 in stock. Explain stock levels
#33 57-69143T V BELT (1 required per assembly)
V BELT            O - Replaced by 57-69143Q 57-69143T
57-69143TThis part has been superseded. V BELT O - Replaced by 57-69143Q
(more info)
    UnavailableUnavailable Parts
V BELT, 40 LGTH 57-69143Q 57-69143Q
57-69143QOEM Part 57-69143Q - V-Belt, 40 Inch Length (more info) About Mercury Marine $29.50 $25.26 Add to shopping cart
Available to order:
Usually ships
within 8 days
V-Belt 18-15400
18-15400OEM Match 18-15400 - V-Belt, 57-69143T, 311606 (more info)
Replaces OEM #0311606
About Sierra Marine $25.49 $17.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#34 12-27025 WASHER (1 required per assembly)
WASHER Note: must be ordered in multiples of 5 12-27025 12-27025
12-27025OEM Part 12-27025 - Washer - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
10+ in stock. Explain stock levels
#35 818379T BRACKET, Idler (1 required per assembly)
BRACKET 818379T 818379T
818379TOEM Part 818379T - Bracket (more info) About Mercury Marine $66.25 $66.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#36 12-45176 WASHER, (.453 x .812 x .105) (3 required per assembly)
WASHER (.453 x .8 12-45176 12-45176
12-45176OEM Part 12-45176 - Washer - Priced Individually (more info) About Mercury Marine $1.10 $1.10 Add to shopping cart
10+ in stock. Explain stock levels
Washer 18-4858-9
18-4858-9OEM Match 18-4858-9 - Washer, 12-45176, 10PK (more info) About Sierra Marine $27.22 $17.96 Add to shopping cart
2 in stock. Explain stock levels