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Parts for MerCruiser Race Engine and Drive 850 SCi Engine Components (Cylinder Block)

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 841350A07 PARTIAL ENGINE ASSEMBLY (1 required per assembly)
PARTIAL-850 SCI   O NLA  
841350A07 PARTIAL-850 SCI O NLA
(more info)
    UnavailableUnavailable Parts
#2 841852 TUBE, Breather (1 required per assembly)
TUBE-BREATHER     O - Replaced by -8M0050950  
841852This part has been superseded. TUBE-BREATHER O - Replaced by -8M0050950
(more info)
    UnavailableUnavailable Parts
TUBE-BREATHER 8M0050950  
8M0050950OEM Part 8M0050950 - Breather Tube (more info) About Mercury Marine $131.22 $131.22 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 22-840016 FITTING, Adaptor Breather Tube (1 required per assembly)
FITTING Adaptor B 22-840016  
22-840016OEM Part 22-840016 - Fitting (more info) About Mercury Marine $120.06 $120.06 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 54-18076 6 CLAMP, Worm Gear (1 required per assembly)
CLAMP Worm Gear 54-18076  6  
54-18076 6OEM Part 54-18076 6 - Clamp (more info) About Mercury Marine $10.50 $10.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 818733 BREATHER ASSEMBLY (1 required per assembly)
BREATHER ASSY     O - Replaced by -8M0050927  
818733This part has been superseded. BREATHER ASSY O - Replaced by -8M0050927
(more info)
    UnavailableUnavailable Parts
BREATHER ASSY 8M0050927  
8M0050927OEM Part 8M0050927 - Breather Assembly (more info) About Mercury Marine $49.30 $49.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 17-845758 PIN, Dowel (4 required per assembly)
1752190 17-845758  
17-845758OEM Part 17-845758 - Pin -Dowel (more info) About Mercury Marine $2.30 $2.30 Add to shopping cart
10+ in stock. Explain stock levels
PIN 17-52190  
17-52190OEM Part 17-52190 - Pin -Dowel (more info) About Mercury Marine $7.50 $7.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#7 22-32561 PLUG, Pipe - Allen Head (.250-18) (1 required per assembly)
PLUG Pipe - Allen 22-32561 22-32561
22-32561OEM Part 22-32561 - Plug - Priced Individually (more info) About Mercury Marine $4.60 $4.60 Add to shopping cart
10+ in stock. Explain stock levels
#8 22-47540 PLUG, Pipe - Allen Head (.375-18) (2 required per assembly)
PLUG Pipe - Allen 22-47540  
22-47540OEM Part 22-47540 - Plug (more info) About Mercury Marine $6.30 $6.30 Add to shopping cart
10+ in stock. Explain stock levels
#9 22-36492 BUSHING, Reducer (1 required per assembly)
BUSHING Reducer 22-36492 22-36492
22-36492OEM Part 22-36492 - Reducer Bushing (more info) About Mercury Marine $22.00 $18.84 Add to shopping cart
10+ in stock. Explain stock levels
#10 19-94140 EXPANSION PLUG, Camshaft (1 required per assembly)
EXPANSION PLUG 19-94140  
19-94140OEM Part 19-94140 - Plug (more info) About Mercury Marine $3.60 $2.02 Add to shopping cart
7 in stock. Explain stock levels
#11 22-36382 FITTING, (.250-18 x .62) Brass (3 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
#12 17-843379 PIN, Dowel (.6206/.6211 x 1.20) (2 required per assembly)
ORD 8M0092110     O NLA  
17-843379 ORD 8M0092110 O NLA
(more info)
    UnavailableUnavailable Parts
#13 22-845174 PLUG, (.500-14 x .610) Brass (2 required per assembly)
PLUG (.500-14 x . 22-845174  
22-845174OEM Part 22-845174 - Plug (more info) About Mercury Marine $5.80 $5.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#14 25-26855 O-RING, (1.609 x .139) (1 required per assembly)
O-RING (1.609 x . 25-26855 25-26855
25-26855OEM Part 25-26855 - O-Ring - Priced Individually (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
O-Ring 18-7155-9
18-7155-9OEM Match 18-7155-9 - (PK5) O-Ring 25-26855 (more info)
Replaces OEM #0305270
About Sierra Marine $14.95 $8.73 Add to shopping cart
Available to order:
Usually ships
within 8 days
#15 25-32507 O-RING, (3.359 x .139) (1 required per assembly)
O-RING (3.359 x . 25-32507 25-32507
25-32507OEM Part 25-32507 - O-Ring - Priced Individually (more info) About Mercury Marine $3.60 $3.60 Add to shopping cart
10+ in stock. Explain stock levels
O-Ring 18-7127
18-7127OEM Match 18-7127 - O-Ring 313446 (more info)
Replaces OEM #0313446
About Sierra Marine $3.99 $2.54 Add to shopping cart
10+ in stock. Explain stock levels
#16 842562 ADAPTOR, Oil Fitler (1 required per assembly)
ADAPTOR Oil Fitle 842562 842562
842562OEM Part 842562 - Adapter (more info) About Mercury Marine $226.99 $226.99 Add to shopping cart
Available to order:
Usually ships
within 8 days
#17 22-841827A01 FITTING ASSEMBLY, Aluminum - With O-Ring (1 required per assembly) - Design I
FITTING ASSEMBLY 22-841827A01  
22-841827A01OEM Part 22-841827A01 - Fitting Assembly (more info) About Mercury Marine $60.75 $60.75 Add to shopping cart
Available to order:
Usually ships
within 8 days
#17 22-8M0010560 FITTING ASSEMBLY, Stainless Steel - With O-Ring (1 required per assembly) - Design II
FITTING ASSEMBLY 22-8M0010560  
22-8M0010560OEM Part 22-8M0010560 - Fitting Assembly (more info) About Mercury Marine $60.75 $60.75 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 10-30559 SCREW, (.312-18 x 1.750) Stainless Steel (2 required per assembly)
SCREW (.312-18 x 10-30559  
10-30559OEM Part 10-30559 - Screw, NLA (more info) About Mercury Marine $3.70 $2.50 Add to shopping cart
10+ in stock. Explain stock levels
#19 19-34270 EXPANSION PLUG, (1.625) (8 required per assembly)
EXPANSION PLUG (1 19-34270 19-34270
19-34270OEM Part 19-34270 - Freeze Plug, 1-5/8 Inch (more info) About Mercury Marine $6.80 $6.80 Add to shopping cart
2 in stock. Explain stock levels
#21 22-860088 BUSHING (2 required per assembly) - Design II
BUSHING 22-860088 22-860088
22-860088OEM Part 22-860088 - Bushing (more info) About Mercury Marine $7.30 $7.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#22 22-806608A 1 PLUG KIT, (.500-13) Royal Blue (2 required per assembly) - Design II
PLUG KIT @5       O - Replaced by 22-806608A02 22-806608A 1
22-806608A 1This part has been superseded. PLUG KIT @5 O - Replaced by 22-806608A02
(more info)
    UnavailableUnavailable Parts
PLUG ASSEMBLY (.5 22-806608A02 22-806608A02
22-806608A02OEM Part 22-806608A02 - Plug Assembly - Priced Individually (more info) About Mercury Marine $6.60 $6.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
DRAIN PLUG 18-4226
18-4226OEM Match 18-4226 - Drain Plug, 22-806608A1 (more info) About Sierra Marine $4.49 $2.97 Add to shopping cart
Available to order:
Usually ships
within 8 days
PLUG KIT Note: must be ordered in multiples of 2   22806608Q01 22-806608Q01
22-806608Q01OEM Part 22-806608Q01 - Plug Kit - Priced Individually (more info) About Mercury Marine $6.80 $6.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#23 25-831985 O-RING, (.468 x .078) (2 required per assembly) - Design II
O-RING (.468 x .0 25-831985  
25-831985OEM Part 25-831985 - O-Ring (more info) About Mercury Marine $3.70 $3.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#24 11-826292 NUT, (M10) Brass/Nickel Plated (2 required per assembly)
NUT (M10) Brass/N 11-826292  
11-826292OEM Part 11-826292 - Nut (more info) About Mercury Marine $2.90 $2.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 878187 SENSOR ASSEMBLY, Knock (2 required per assembly)
SENSOR-KNOCK      O - Replaced by -8M6003194 878187
878187This part has been superseded. SENSOR-KNOCK O - Replaced by -8M6003194
(more info)
    UnavailableUnavailable Parts
SENSOR-KNOCK      O  
8M6003194 SENSOR-KNOCK O
(more info)
    UnavailableUnavailable Parts
KNOCK SENSOR 18-7554
18-7554OEM Match 18-7554 - Knock Sensor 878187 (more info) About Sierra Marine $88.16 $73.61 Add to shopping cart
3 in stock. Explain stock levels
#26 16-8M0029493 STUD, (.250-18/M10 Special), Knock Sensor Mounting (2 required per assembly)
STUD (.250-18/M10 16-8M0029493  
16-8M0029493OEM Part 16-8M0029493 - Stud (more info) About Mercury Marine $26.60 $26.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#27 842575 JET, Special, Piston Cooling (8 required per assembly)
JET Special 842575 842575
842575OEM Part 842575 - Jet (more info) About Mercury Marine $4.70 $4.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#28 17-35312 PIN, Dowel (1/4 n. Diameter) (2 required per assembly)
PIN-DOWEL         O - Replaced by 17-843378  
17-35312This part has been superseded. PIN-DOWEL O - Replaced by 17-843378
(more info)
    UnavailableUnavailable Parts
PIN Dowel 17-843378  
17-843378OEM Part 17-843378 - Pin -Dowel (more info) About Mercury Marine $10.60 $10.60 Add to shopping cart
1 in stock. Explain stock levels
#31 22-32802 2 PLUG, Pipe (.125-27) Brass (1 required per assembly)
PLUG Pipe (.125-2 22-32802  2 22-32802 2
22-32802 2OEM Part 22-32802 2 - Plug - (brass) - Priced Individually (more info) About Mercury Marine $5.50 $5.50 Add to shopping cart
6 in stock. Explain stock levels
Pipe Plug, 1/8-27 Npt Pipe 18-4263
18-4263OEM Match 18-4263 - Pipe Plug, 1/8-27 NPT Pi (more info) About Sierra Marine $4.49 $3.24 Add to shopping cart
Available to order:
Usually ships
within 8 days
#32 16-840999A01 STUD KIT, Main Caps (1 required per assembly)
STUD KIT          O  
16-840999A01 STUD KIT O
(more info)
    UnavailableUnavailable Parts
#33 16-816253 STUD, (.500-13/.500-20 x 3.620) (6 required per assembly)
STUD 16-816253  
16-816253OEM Part 16-816253 - Stud (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
10 in stock. Explain stock levels
#34 12-816258 WASHER, (.500 x .875 x .120) Special (20 required per assembly)
WASHER (.500 x .8 12-816258  
12-816258OEM Part 12-816258 - Washer (more info) About Mercury Marine $3.60 $3.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#35 11-816255 NUT, (.500-20) (20 required per assembly)
NUT (.500-20) 11-816255  
11-816255OEM Part 11-816255 - Nut (more info) About Mercury Marine $3.60 $3.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#36 16-842561 STUD, (.500-13/.500-20 x 4.060) (4 required per assembly)
STUD 16-842561  
16-842561OEM Part 16-842561 - Stud (more info) About Mercury Marine $16.12 $16.12 Add to shopping cart
4 in stock. Explain stock levels
#37 16-816252 STUD, (.500-13/.500-20 x 4.400) (10 required per assembly)
STUD 16-816252  
16-816252OEM Part 16-816252 - Stud (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
10+ in stock. Explain stock levels
#- 27-842593A01 GASKET/SEAL SET, Engine Overhaul (1 required per assembly) - NOTE: See Gasket/Seal Set - Engine Overhaul Section For Complete Parts Listing
GASKET/SEAL SET E 27-842593A01  
27-842593A01OEM Part 27-842593A01 - Gasket Set (more info) About Mercury Marine $1,633.84 Add to shopping cart
Available to order:
Usually ships
within 8 days