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Parts for MerCruiser Race Engine and Drive 525 EFI Electrical Components (Starter & Alternator Mount)

#1 840935 1 BRACKET, Alternator/Power Steering Mount (1 required per assembly)
840935  1 - BRACKET           O - Replaced by -8M0050829
 

This part has been superseded.

840935 1 - 840935 1 - BRACKET O [ More info ]
Unavailable
Replaced by -8M0050829
BRACKET 8M0050829
 

About Mercury Marine

OEM Part

8M0050829 - Bracket [ More info ]

Add to shopping cart $227.60
Available to order: Usually ships within 8 days. Explain stock levels

#2 12-856774 WASHER, (.406 x .750 x .105) Stainless Steel (1 required per assembly)
WASHER (.406 x .750 x . 12-856774
 

About Mercury Marine

OEM Part

12-856774 - Washer [ More info ]

Add to shopping cart $1.60
10+ in stock. Explain stock levels

#3 10-825427 SCREW, (.437-14 x 1.250) Stainless Steel (1 required per assembly)
SCREW (.437-14 x 1.250) 10-825427
10-825427

About Mercury Marine

OEM Part

10-825427 - Screw [ More info ]

Add to shopping cart $4.90
10+ in stock. Explain stock levels

#5 10-65210 SCREW, (.375-16 x 1.00) (1 required per assembly) - Non Power Steering Models
SCREW (.375-16 x 1.00) 10-65210
10-65210

About Mercury Marine

OEM Part

10-65210 - Screw - Priced Individually [ More info ]

Add to shopping cart $2.00
10+ in stock. Explain stock levels

#6 16-59579 STUD, (.437-14/.437-20 x 2.812) (1 required per assembly)
STUD (.437-14/.437-20 x 16-59579
16-59579

About Mercury Marine

OEM Part

16-59579 - Stud [ More info ]

Add to shopping cart $6.10
10+ in stock. Explain stock levels

#7 16-57920 3 STUD, (.437-14/.437-20 x 2.060) (1 required per assembly)
STUD (.437-14/.437-20 x 16-57920  3
 

About Mercury Marine

OEM Part

16-57920 3 - Stud [ More info ]

Add to shopping cart $5.70
Available to order: Usually ships within 8 days. Explain stock levels

#10 23-66995 2 SPACER, (.410 x 1.00 x .500) Aluminum - Black (2 required per assembly) - Non Power Steering Models
SPACER (.410 x 1.00 x . 23-66995  2
 

About Mercury Marine

OEM Part

23-66995 2 - Spacer [ More info ]

Add to shopping cart $32.64
Available to order: Usually ships within 8 days. Explain stock levels

#11 849297T 1 BRACKET, Idler Pulley, Idler Pulley (1 required per assembly) - Non Power Steering Models
BRACKET Idler Pulley 849297T 1
849297T 1

About Mercury Marine

OEM Part

849297T 1 - Bracket [ More info ]

Add to shopping cart $176.56
Available to order: Usually ships within 8 days. Explain stock levels

#13 10-841154 SCREW, (.375-16 x 3.375) (2 required per assembly) - Non Power Steering Models
SCREW (.375-16 x 3.375) 10-841154
10-841154

About Mercury Marine

OEM Part

10-841154 - Screw [ More info ]

Add to shopping cart $7.88
Available to order: Usually ships within 8 days. Explain stock levels

#14 849296T PULLEY ASSEMBLY, Idler - Black (1 required per assembly) - Non Power Steering Models
864625T 849296T
849296T

About Mercury Marine

OEM Part

849296T - Pulley [ More info ]

Add to shopping cart $29.82
4 in stock. Explain stock levels

PULLEY 864625T
864625T

About Mercury Marine

OEM Part

864625T - Idler Pulley [ More info ]

Add to shopping cart $42.08
2 in stock. Explain stock levels

#15 10-821301 30 SCREW, (M10 x 30) (1 required per assembly) - Non Power Steering Models
SCREW (M10 x 30) 10-821301 30
10-821301 30

About Mercury Marine

OEM Part

10-821301 30 - Screw [ More info ]

Add to shopping cart $15.70
Available to order: Usually ships within 8 days. Explain stock levels

#16 43-818381 2 PINION STUD, (.437-20) Stainless Steel (1 required per assembly)
43-818381  2 - PINION STUD (.437
43-818381  2

About Mercury Marine

OEM Part

43-818381 2 - PINION STUD (.437 [ More info ]
Unavailable
#17 842443 1 BRACKET, Tensioner (1 required per assembly)
842443  1 - BRACKET           O - Replaced by -8M0050739
 

This part has been superseded.

842443 1 - 842443 1 - BRACKET O [ More info ]
Unavailable
Replaced by -8M0050739
8M0050739 - ORD 8M0065011     O NLA
 

About Mercury Marine

OEM Part

8M0050739 - ORD 8M0065011 O NLA [ More info ]
Unavailable
BRACKET 8M0065011
 

About Mercury Marine

OEM Part

8M0065011 - Bracket [ More info ]

Add to shopping cart $116.98
Available to order: Usually ships within 8 days. Explain stock levels

#18 12-45176 WASHER, (.453 x .812 x .105) Stainless Steel (1 required per assembly)
WASHER (.453 x .812 x . 12-45176
12-45176

About Mercury Marine

OEM Part

12-45176 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.10
10+ in stock. Explain stock levels

Washer
18-4858-9

About Sierra Marine

OEM Match

18-4858-9 - Washer, 12-45176, 10PK [ More info ]

Add to shopping cart $27.22 $13.72
6 in stock. Explain stock levels

#19 10-99204 SCREW, (.437-14 x 1.00) Stainless Steel (1 required per assembly)
SCREW (.437-14 x 1.00) 10-99204
10-99204

About Mercury Marine

OEM Part

10-99204 - Screw [ More info ]

Add to shopping cart $3.70
1 in stock. Explain stock levels

#20 807757T PULLEY ASSEMBLY, Idler - Black, Idler (1 required per assembly)
PULLEY ASSEMBLY Idler - 807757T
807757T

About Mercury Marine

OEM Part

807757T - Idler Pulley [ More info ]

Add to shopping cart $42.50
Available to order: Usually ships within 8 days. Explain stock levels

Pulley, Composite
18-6457

About Sierra Marine

OEM Match

18-6457 - Pulley, 807757T [ More info ]

Add to shopping cart $41.99 $35.46
6 in stock. Explain stock levels

#21 11-859135 NUT, (.437-20) Brass/Nickel Plated (1 required per assembly)
NUT (.437-20) Brass/Nic 11-859135
11-859135

About Mercury Marine

OEM Part

11-859135 - Nut - Priced Individually [ More info ]

Add to shopping cart $4.30
10+ in stock. Explain stock levels

#22 845117 BUSHING (1 required per assembly)
BUSHING 845117
845117

About Mercury Marine

OEM Part

845117 - Bushing [ More info ]

Add to shopping cart $18.67
Available to order: Usually ships within 8 days. Explain stock levels

#24 10-87302 SCREW, (.375-16 x 5.00) Stainless Steel (1 required per assembly)
SCREW (.375-16 x 5.00) 10-87302
 

About Mercury Marine

OEM Part

10-87302 - Bolt, NLA [ More info ]

Add to shopping cart $8.70
10+ in stock. Explain stock levels

#25 10-841118 SCREW, (.437-14 x 5.50) Stainless Steel (1 required per assembly)
SCREW (.437-14 x 5.50) 10-841118
10-841118

About Mercury Marine

OEM Part

10-841118 - Screw [ More info ]

Add to shopping cart $10.38
Available to order: Usually ships within 8 days. Explain stock levels

#26 11-826709 10 NUT, (.312-18) Stainless Steel (1 required per assembly)
NUT (.312-18) Stainless 11-826709 10
 

About Mercury Marine

OEM Part

11-826709 10 - Nut - Priced Individually [ More info ]

Add to shopping cart $5.10
1 in stock. Explain stock levels

#27 12-814806 WASHER, (.344 x .688 x .065) Stainless Steel (2 required per assembly) SN# 0M900146 THRU 0M951500
WASHER (.344 x .688 x . 12-814806
 

About Mercury Marine

OEM Part

12-814806 - Washer [ More info ]

Add to shopping cart $1.30
10+ in stock. Explain stock levels

#27 12-F506186 WASHER, (.340 x .734 x .105) Stainless Steel (2 required per assembly) SN# 0M953031 THRU 0M953619
WASHER (.340 x .734 x . 12-F506186
 

About Mercury Marine

OEM Part

12-F506186 - Washer [ More info ]

Add to shopping cart $4.00
Available to order: Usually ships within 8 days. Explain stock levels

#28 863077T02 ALTERNATOR ASSEMBLY, Blue, Service Complete (1 required per assembly)
ALTERNATOR ASSEMBLY Blu 863077T02
863077T02

About Mercury Marine

OEM Part

863077T02 - Alternator (Blue) [ More info ]

Add to shopping cart $561.32
Available to order: Usually ships within 8 days. Explain stock levels

#29 10-39001 SCREW, (.312-18 x 4.50) (1 required per assembly)
SCREW (.312-18 x 4.50) 10-39001
10-39001

About Mercury Marine

OEM Part

10-39001 - Screw [ More info ]

Add to shopping cart $5.40
Available to order: Usually ships within 8 days. Explain stock levels

#30 12-846673 WASHER, (.265 x .500 x .060) Stainless Steel (2 required per assembly)
WASHER (.265 x .500 x . 12-846673
 

About Mercury Marine

OEM Part

12-846673 - Washer [ More info ]

Add to shopping cart $0.80
Available to order: Usually ships within 8 days. Explain stock levels

#31 11-40138 6 NUT, (M6) Stainless Steel (2 required per assembly)
NUT (M6) Stainless Stee 11-40138  6
 

About Mercury Marine

OEM Part

11-40138 6 - Nut - Priced Individually [ More info ]

Add to shopping cart $3.40
Available to order: Usually ships within 8 days. Explain stock levels

#32 10-821550 25 SCREW, (M8 x 25) Stainless Steel (1 required per assembly)
SCREW (M8 x 25 MM) Stai 10-821550 25
10-821550 25

About Mercury Marine

OEM Part

10-821550 25 - Screw - Priced Individually [ More info ]

Add to shopping cart $2.20
7 in stock. Explain stock levels

#33 50-8M8021116 STARTER MOTOR ASSEMBLY (1 required per assembly) - NOTE: See Starter Assembly Section For Parts Breakdown
STARTER MOTOR ASSEMBLY 50-8M8021116
50-8M8021116

About Mercury Marine

OEM Part

50-8M8021116 - Starter Assembly [ More info ]

Add to shopping cart $385.14
Available to order: Usually ships within 8 days. Explain stock levels

STARTER
18-6946

About Sierra Marine

OEM Match

18-6946 - Starter 18-6946 [ More info ]

Add to shopping cart $349.99 $298.04
In stock Explain stock levels

#34 10-805343 2 SCREW, (.375-16 x 4.33) (2 required per assembly)
SCREW (.375-16 x 4.33) 10-805343  2
10-805343  2

About Mercury Marine

OEM Part

10-805343 2 - Bolt [ More info ]

Add to shopping cart $12.00
10 in stock. Explain stock levels

#35 15-817272 1 SHIM, Special (1 required per assembly)
SHIM 15-817272  1
 

About Mercury Marine

OEM Part

15-817272 1 - Shim [ More info ]

Add to shopping cart $12.90
Available to order: Usually ships within 8 days. Explain stock levels

#36 88-79023A91 FUSE ASSEMBLY, 90 Ampere (1 required per assembly) - .375 Mounting Hole SN# 0M900146 THRU 0M951500
FUSE ASSEMBLY 90 Ampere 88-79023A91
88-79023A91

About Mercury Marine

OEM Part

88-79023A91 - Fuse Assembly -90 Amp [ More info ]

Add to shopping cart $32.08
Available to order: Usually ships within 8 days. Explain stock levels

Fuse Kit, 90 amp
18-8220

About Sierra Marine

OEM Match

18-8220 - Fuse Kit, 90 Amp [ More info ]

Add to shopping cart $38.33 $32.01
10+ in stock. Explain stock levels

#36 88-79023A90 FUSE ASSEMBLY, 90 Ampere (1 required per assembly) - .312 Mounting Hole SN# 0M953031 THRU 0M953619
8879023T90 88-79023A90
88-79023A90

About Mercury Marine

OEM Part

88-79023A90 - Fuse Assembly -90 AMP [ More info ]

Add to shopping cart $26.00
4 in stock. Explain stock levels

FUSE ASSEMBLY 90 Ampere 88-79023T90
88-79023T90

About Mercury Marine

OEM Part

88-79023T90 - Fuse Assembly -90 Amp [ More info ]

Add to shopping cart $25.50
1 in stock. Explain stock levels

#37 11-826709109 NUT, (.250-28) Stainless Steel (1 required per assembly)
NUT (.250-28) Stainless 11-826709109
11-826709109

About Mercury Marine

OEM Part

11-826709109 - Nut - Priced Individually [ More info ]

Add to shopping cart $2.40
10+ in stock. Explain stock levels

#38 85-79695 BOOT, Insulator - Black (1 required per assembly)
8579695T 85-79695
 

About Mercury Marine

OEM Part

85-79695 - Boot (Black) [ More info ]

Add to shopping cart $1.90
7 in stock. Explain stock levels

BOOT Insulator (Black) 85-79695T
 

About Mercury Marine

OEM Part

85-79695T - Insulator Boot [ More info ]

Add to shopping cart $4.00
Available to order: Usually ships within 8 days. Explain stock levels

#39 11-40138 8 NUT, (M8) Stainless Steel (1 required per assembly)
NUT (M8) Stainless Stee 11-40138  8
 

About Mercury Marine

OEM Part

11-40138 8 - Nut - Priced Individually [ More info ]

Add to shopping cart $2.19
Available to order: Usually ships within 8 days. Explain stock levels

#40 13-26996 LOCKWASHER, (#10) Stainless Steel (1 required per assembly)
LOCKWASHER (#10) Stainl 13-26996
 

About Mercury Marine

OEM Part

13-26996 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $0.90
10+ in stock. Explain stock levels

#41 11-40021 1 NUT, (M5) Stainless Steel (1 required per assembly)
NUT (M5) Stainless Stee 11-40021  1
11-40021  1

About Mercury Marine

OEM Part

11-40021 1 - Nut [ More info ]

Add to shopping cart $2.50
8 in stock. Explain stock levels

#42 23-841940 BUSHING, Flanged (1 required per assembly) SN# 0M953031 THRU 0M953619
BUSHING Flanged 23-841940
 

About Mercury Marine

OEM Part

23-841940 - Bushing [ More info ]

Add to shopping cart $43.85
Available to order: Usually ships within 8 days. Explain stock levels