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Parts for MerCruiser Race Engine and Drive 525 EFI Engine Components (Cylinder Block & Camshaft)

#1 841178A 1 PARTIAL ENGINE ASSEMBLY (1 required per assembly) - NOTE: Bravo Models With Driveline Also Require Pilot Bushing Part Number 23-823108
PARTIAL ENGINE ASSEMBLY 841178A 1
 

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OEM Part

841178A 1 - Partial - 525 Efi [ More info ]

Add to shopping cart $17,186.38
Available to order: Usually ships within 8 days. Explain stock levels

#2 22-32561 PLUG, Pipe - Allen Head (.250-18), Oil Gallery Rear Cam Plugs (3 required per assembly)
PLUG Pipe - Allen Head 22-32561
22-32561

About Mercury Marine

OEM Part

22-32561 - Plug - Priced Individually [ More info ]

Add to shopping cart $4.70
10+ in stock. Explain stock levels

#3 17-843379 PIN, Dowel (.6206/.6211 x 1.20), Flywheel Housing (2 required per assembly)
ORD 8M0092110     O NLA
 

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OEM Part

ORD 8M0092110 O NLA [ More info ]
Unavailable
#4 805218T SENSOR, Coolant (1 required per assembly)
SENSOR ASSY-TEMP 805218T
805218T

About Mercury Marine

OEM Part

805218T - Temperature Sensor [ More info ]

Add to shopping cart $49.91
In stock Explain stock levels

Coolant Temp Sensor
18-7600

About Sierra Marine

OEM Match

18-7600 - Sensor 805218T [ More info ]

Add to shopping cart $29.99 $24.52
8 in stock. Explain stock levels

#5 17-35312 PIN, Dowel (.250) Bottom Of Block (2 required per assembly)
PIN-DOWEL         O - Replaced by 17-843378
 

This part has been superseded.

17-35312 - PIN-DOWEL O [ More info ]
Unavailable
Replaced by 17-843378
PIN Dowel 17-843378
 

About Mercury Marine

OEM Part

17-843378 - Pin -Dowel [ More info ]

Add to shopping cart $11.70
1 in stock. Explain stock levels

#6 22-36373 PLUG, (.375-18) Hex - Steel, Bottom Of Block Oil Plug (1 required per assembly)
PLUG (.375-18) Hex - St 22-36373
 

About Mercury Marine

OEM Part

22-36373 - Plug [ More info ]

Add to shopping cart $4.20
4 in stock. Explain stock levels

#7 22-64013 FITTING, (.375 Male To .125 Female) (1 required per assembly)
FITTING (.375 Male To . 22-64013
 

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OEM Part

22-64013 - Reducer [ More info ]

Add to shopping cart $8.20
6 in stock. Explain stock levels

#8 881879011 SENSOR, Pressure (0 - 100 PSI), Oil Pressure (1 required per assembly)
881879T11 881879011
881879011

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OEM Part

881879011 - Pressure Sensor [ More info ]

Add to shopping cart $111.42
1 in stock. Explain stock levels

SENSOR Pressure (0 - 10 881879T11
881879T11

About Mercury Marine

OEM Part

881879T11 - Pressure Sensor [ More info ]

Add to shopping cart $140.75
In stock Explain stock levels

#9 16-862915 STUD, (.250-18/M10 Special), Knock Sensor Assembly Mount (2 required per assembly)
STUD (.250-18/M10 Speci 16-862915
 

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OEM Part

16-862915 - Stud [ More info ]

Add to shopping cart $20.25
Available to order: Usually ships within 8 days. Explain stock levels

#10 11-826292 NUT, (M10) Brass/Nickel Plated (2 required per assembly)
NUT (M10) Brass/Nickel 11-826292
 

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OEM Part

11-826292 - Nut [ More info ]

Add to shopping cart $3.00
Available to order: Usually ships within 8 days. Explain stock levels

#11 878187 SENSOR ASSEMBLY, Knock (2 required per assembly)
SENSOR-KNOCK      O - Replaced by -8M6003194
878187

This part has been superseded.

878187 - SENSOR-KNOCK O [ More info ]
In stock Explain stock levels
Replaced by -8M6003194
SENSOR-KNOCK      O
 

About Mercury Marine

OEM Part

SENSOR-KNOCK O [ More info ]
Unavailable
KNOCK SENSOR
18-7554

About Sierra Marine

OEM Match

18-7554 - Knock Sensor 878187 [ More info ]

Add to shopping cart $88.16 $73.61
3 in stock. Explain stock levels

#12 22-36382 FITTING, (.250-18 x .62) Brass, Lower Side Of Block (2 required per assembly)
FITTING (.250-18 x .62) 22-36382
22-36382

About Mercury Marine

OEM Part

22-36382 - Plug [ More info ]

Add to shopping cart $4.00
4 in stock. Explain stock levels

Pipe Plug
18-8111

About Sierra Marine

OEM Match

18-8111-9 - Pipe Plug (PK3) [ More info ]

Add to shopping cart $10.77 $7.50
10+ in stock. Explain stock levels

#13 19-34270 EXPANSION PLUG, (1.625) (6 required per assembly)
EXPANSION PLUG (1.625) 19-34270
19-34270

About Mercury Marine

OEM Part

19-34270 - Freeze Plug, 1-5/8 Inch [ More info ]

Add to shopping cart $7.00
2 in stock. Explain stock levels

#14 17-845758 PIN, Dowel, .660 Relaxed Outside Diameter x .500 (4 required per assembly)
1752190 17-845758
 

About Mercury Marine

OEM Part

17-845758 - Pin -Dowel [ More info ]

Add to shopping cart $2.30
10+ in stock. Explain stock levels

PIN 17-52190
 

About Mercury Marine

OEM Part

17-52190 - Pin -Dowel [ More info ]

Add to shopping cart $7.70
Available to order: Usually ships within 8 days. Explain stock levels

#15 17-843143 PIN, Spring, Port Side - Timing Cover (1 required per assembly)
PIN Spring 17-843143
 

About Mercury Marine

OEM Part

17-843143 - Spring Pin [ More info ]

Add to shopping cart $1.59
Available to order: Usually ships within 8 days. Explain stock levels

#17 845606 PLUG, (.250-18 x .410) Allen Head With Hole, Oil Gallery (2 required per assembly)
228M0044324 845606
845606

About Mercury Marine

OEM Part

845606 - Plug [ More info ]

Add to shopping cart $3.31
Available to order: Usually ships within 8 days. Explain stock levels

#18 22-32802 2 PLUG, Pipe (.125-27) Brass, Oil Gallery (3 required per assembly)
PLUG Pipe (.125-27) Bra 22-32802  2
22-32802  2

About Mercury Marine

OEM Part

22-32802 2 - Plug - (brass) - Priced Individually [ More info ]

Add to shopping cart $5.60
6 in stock. Explain stock levels

Pipe Plug, 1/8-27 Npt Pipe
18-4263

About Sierra Marine

OEM Match

18-4263 - Pipe Plug, 1/8-27 NPT Pi [ More info ]

Add to shopping cart $4.49 $3.24
10+ in stock. Explain stock levels

#19 10-841389 SCREW, (.312-18 x .620) (4 required per assembly)
SCREW (.312-18 x .620) 10-841389
10-841389

About Mercury Marine

OEM Part

10-841389 - Screw [ More info ]

Add to shopping cart $1.20
Available to order: Usually ships within 8 days. Explain stock levels

#20 845755 RETAINER, Lifter Guide (1 required per assembly)
RETAINER-LIFTER   O - Replaced by -8M0050807
845755

This part has been superseded.

845755 - RETAINER-LIFTER O [ More info ]
Unavailable
Replaced by -8M0050807
RETAINER 8M0050807
 

About Mercury Marine

OEM Part

8M0050807 - Lifter Retainer [ More info ]

Add to shopping cart $41.34
Available to order: Usually ships within 8 days. Explain stock levels

#21 19-94140 EXPANSION PLUG (1 required per assembly)
EXPANSION PLUG 19-94140
 

About Mercury Marine

OEM Part

19-94140 - Plug [ More info ]

Add to shopping cart $3.70 $2.08
7 in stock. Explain stock levels

#22 849947T LIFTER (16 required per assembly)
LIFTER            O - Replaced by -849947T01
849947T

This part has been superseded.

849947T - LIFTER O [ More info ]
Unavailable
Replaced by -849947T01
LIFTER 849947T01
849947T01

About Mercury Marine

OEM Part

849947T01 - Lifter [ More info ]

Add to shopping cart $125.83
Available to order: Usually ships within 8 days. Explain stock levels

#23 845754 GUIDE, Lifter (8 required per assembly)
GUIDE 845754
845754

About Mercury Marine

OEM Part

845754 - Guide - Lifter [ More info ]

Add to shopping cart $5.80
1 in stock. Explain stock levels

#24 2409-840919T CAMSHAFT (1 required per assembly)
CAMSHAFT          O - Replaced by 400-8M0043065
2409-840919T

This part has been superseded.

2409-840919T - CAMSHAFT O [ More info ]
Unavailable
Replaced by 400-8M0043065
CAMSHAFT 400-8M0043065
400-8M0043065

About Mercury Marine

OEM Part

4008M0043065 - CamShaft [ More info ]

Add to shopping cart $1,023.18
Available to order: Usually ships within 8 days. Explain stock levels

#25 92-15875 LUBE, Camshaft (8 Ounces) (AR required per assembly)
LUBE-CAMSHAFT     O NLA
 

About Mercury Marine

OEM Part

LUBE-CAMSHAFT O NLA [ More info ]
Unavailable
#26 23-85684 BEARING SET (1 required per assembly)
BEARING SET 23-85684
23-85684

About Mercury Marine

OEM Part

23-85684 - Bearing Set [ More info ]

Add to shopping cart $90.17
Available to order: Usually ships within 8 days. Explain stock levels

#28 845941 RETAINER, Gear Thrust (1 required per assembly)
RETAINER 845941
845941

About Mercury Marine

OEM Part

845941 - Retainer [ More info ]

Add to shopping cart $19.25
Available to order: Usually ships within 8 days. Explain stock levels

#29 10-845943 SCREW, (.250-20 x .500) (2 required per assembly)
SCREW (.250-20 x .500) 10-845943
10-845943

About Mercury Marine

OEM Part

10-845943 - Screw [ More info ]

Add to shopping cart $4.50
Available to order: Usually ships within 8 days. Explain stock levels

#30 8M8023355 TIMING SET KIT (1 required per assembly)
TIMING SET KIT 8M8023355
 

About Mercury Marine

OEM Part

8M8023355 - Timing Set Kit [ More info ]

Add to shopping cart $202.36
Available to order: Usually ships within 8 days. Explain stock levels

#31 NSS NOT SOLD SEPARATE, Crankshaft Sprocket (1 required per assembly)
#33 10-845942 SCREW, (.312-18 x .750) (3 required per assembly)
SCREW (.312-18 x .750) 10-845942
10-845942

About Mercury Marine

OEM Part

10-845942 - Screw [ More info ]

Add to shopping cart $4.30
Available to order: Usually ships within 8 days. Explain stock levels

#34 27-843073A03 GASKET/SEAL SET, Engine Overhaul (1 required per assembly) - NOTE: See Gasket/Seal Set - Engine Overhaul Section For Complete Parts Listing
GASKET/SEAL SET   O - Replaced by 27-843073A06
 

This part has been superseded.

27-843073A03 - GASKET/SEAL SET O [ More info ]
Unavailable
Replaced by 27-843073A06
GASKET/SEAL SET Engine 27-843073A06
27-843073A06

About Mercury Marine

OEM Part

27-843073A06 - Gasket/Seal Set [ More info ]

Add to shopping cart $951.21
Available to order: Usually ships within 8 days. Explain stock levels