Parts for Mercury Marine 225 HP (DFI) Cylinder Block & End Cap Cylinder Block & End Cap

Revise Search: All Models > 225 HP (DFI) > 0G960500 - 0T178499 (USA) > Cylinder Block & End Cap

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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 ]

#39	900-858301T 1	CYLINDER HEAD (1 required per assembly) (Starboard) (200 HP)
		900-858301T 1 - Cylinder Head Starboard, NLA [ More info ] $400.00 4 in stock.
#1	885-9811A51	CYLINDER BLOCK (1 required per assembly) (225)
		885-9811A51 - Cylinder Block [ More info ] $1,170.77 Available to order: Usually ships within 8 days.
#1	885-9811A50	CYLINDER BLOCK (1 required per assembly) (200)
		885-9811A50 - Cylinder Block, NLA [ More info ] $525.00 2 in stock.
#39	900-858301T 2	CYLINDER HEAD (1 required per assembly) (Starboard) (225 ) (Cylinder Head Has No Casting Number)
		900-858301T 2 - Cylinder Head Assembly -stb, NLA [ More info ] $500.00 10 in stock.
#39	900-858485T 1	CYLINDER HEAD (1 required per assembly) (Starboard) (225 ) (Cyliner Head Casting #900-858485C1/C2)
		900-858485T 1 - 900-858485T 1 - CYLINDER HEAD O [ More info ] Unavailable Replaced by 900-858485T 3
		900-858485T 3 - 900-858485T 3 - CYLINDER HEAD O [ More info ] Unavailable Replaced by 900-858485T 6
		900-858485T 6 - 900-858485T 6 - CYLINDER HEAD O [ More info ] Unavailable Replaced by 900-858485T07
		900-858485T07 - Cylinder Head Assembly - Stbd [ More info ] $398.50 Available to order: Usually ships within 8 days.
#2	10-818934 40	SCREW, (M8 x 40) (4 required per assembly)
		10-818934 40 - Screw [ More info ] $3.00 Available to order: Usually ships within 8 days.
#3	856966 1	COVER (2 required per assembly)
		856966 1 - 856966 1 - COVER O [ More info ] Unavailable Replaced by -856966 2
		856966 2 - 856966 2 - BRACKET O [ More info ] Unavailable Replaced by -8M0041759
		8M0041759 - Cover [ More info ] $35.17 Available to order: Usually ships within 8 days.
#39	900-858300T 1	CYLINDER HEAD (1 required per assembly) (Port) (200 HP)
		900-858300T 1 - CYLINDER HEAD O NLA [ More info ] Unavailable
#39	900-858300T 2	CYLINDER HEAD (1 required per assembly) (Port) (225) (Cylinder Head Has No Casting Number)
		900-858300T 2 - Cylinder Head Assembly -por, NLA [ More info ] $625.00 6 in stock.
#4	16-90350 9	STUD, (M10 x 1.5 x 64) (4 required per assembly)
		16-90350 9 - Stud [ More info ] $15.40 Available to order: Usually ships within 8 days.
#39	900-858483T 1	CYLINDER HEAD (1 required per assembly) (Port) (225) (Cylinder Head Casting #900-858483C1/C2)
		900-858483T 1 - 900-858483T 1 - CYLINDER HEAD O [ More info ] Unavailable Replaced by 900-858483T 3
		900-858483T 3 - 900-858483T 3 - CYLINDER HEAD O [ More info ] Unavailable Replaced by 900-858483T 6
		900-858483T 6 - 900-858483T 6 - CYLINDER HEAD O [ More info ] Unavailable Replaced by 900-858483T07
		900-858483T07 - Cylinder Head Assembly - Port [ More info ] $464.92 Available to order: Usually ships within 8 days.
#5	16-815443 1	STUD, (M10 x 1.5 x 155) (6 required per assembly)
		16-815443 1 - Stud [ More info ] $23.75 Available to order: Usually ships within 8 days.
#6	824857 2	DEFLECTOR, Water (6 required per assembly)
		824857 2 - Water Deflector [ More info ] $1.15 3 in stock.
		824857 4 - 824857 4 - DEFLECTOR Water O [ More info ] Unavailable Replaced by -824857 7
		824857 7 - Water Deflector [ More info ] $1.80 Available to order: Usually ships within 8 days.
#40	26-854639	SEAL (2 required per assembly)
		26-854639 - SEAL [ More info ] $3.78 6 in stock.
		26-854639001 - Seal - Priced Individually [ More info ] $5.80 7 in stock.
#41	NLA	No Longer Available, Thermostat (2 required per assembly) (Refer to Service Bulletin 2002-08)
		NLA - No Longer Availab O [ More info ] Unavailable
#7	21-43278 3	CHECK VALVE (1 required per assembly)
		21-43278 3 - 21-43278 3 - CHECK VALVE O [ More info ] Unavailable Replaced by 21-878105
		21-878105 - 21-878105 - CHECK VALVE O [ More info ] Unavailable Replaced by 21-878105 1
		21-878105 1 - Check Valve [ More info ] $21.10 $18.07 5 in stock.
#8	17-67296	PIN (3 required per assembly)
		17-67296 - 17-67296 - PIN O [ More info ] Unavailable Replaced by 17-8M0036405
		17-8M0036405 - Pin - Center Main [ More info ] $2.50 Available to order: Usually ships within 8 days.
#42	27-850318 1	GASKET (2 required per assembly)
		27-850318 1 - Gasket [ More info ] $3.40 10+ in stock.
#43	858856	THERMOSTAT COVER (1 required per assembly) (Port)
		858856 - THERMOSTAT COVER O NLA [ More info ] Unavailable
		885599A 1 - Thermostat/Cover [ More info ] $228.41 Available to order: Usually ships within 8 days.
#9	17-43044	PIN, Dowel - Without Hole (.375 x .625) (1 required per assembly)
		17-43044 - Pin -Dowel-solid [ More info ] $1.70 10+ in stock.
#10	19-850309	PLUG (6 required per assembly)
		19-850309 - 19-850309 - PLUG O [ More info ] Unavailable Replaced by 19-850309001
		19-850309001 - Plug - Stop [ More info ] $1.70 Available to order: Usually ships within 8 days.
#43	858857	THERMOSTAT COVER (1 required per assembly) (Starboard)
		858857 - Cover - Stbd Therm [ More info ] $6.30 Available to order: Usually ships within 8 days.
#11	10-818934 35	SCREW, (M8 x 35) (14 required per assembly)
		10-818934 35 - Screw [ More info ] $2.80 Available to order: Usually ships within 8 days.
#44	10-821300 25	SCREW, (M6 x 25) (4 required per assembly)
		10-821300 25 - Screw [ More info ] $2.80 7 in stock.
#45	10-824460 50	SCREW, (M8 x 50) (M8 X 50) (40 required per assembly)
		10-824460 50 - 10-824460 50 - SCREW (M8 x 50) O [ More info ] Unavailable Replaced by 10-859096
		10-859096 - 10-859096 - SCREW (M8 x 50) O [ More info ] Unavailable Replaced by 10-891570050
		10-891570050 - 10-891570050 - SCREW (M8 x 50) O [ More info ] Unavailable Replaced by 10-8M0045380
		10-8M0045380 - Screw - Priced Individually [ More info ] $4.70 3 in stock.
#12	10-824461 80	SCREW, (M10 x 80) (8 required per assembly)
		10-824461 80 - Screw [ More info ] $9.40 Available to order: Usually ships within 8 days.
#13	858952 1	BRACKET (1 required per assembly)
		858952 1 - Starter Bracket [ More info ] $5.50 Available to order: Usually ships within 8 days.
#46	13536A 2	SENSOR ASSEMBLY (1 required per assembly) (Port)
		13536A 2 - 13536A 2 - SENSOR ASSEMBLY O [ More info ] Unavailable Replaced by -13536A11
		13536A11 - 13536A11 - SENSOR ASSEMBLY T O [ More info ] Unavailable Replaced by -13536A14
		13536A14 - Temperature Sensor [ More info ] $42.75 1 in stock.
#46	13536A12	SENSOR ASSEMBLY, Temperature (1 required per assembly) (Starboard)
		13536A12 - Temperature Sensor [ More info ] $32.50 Available to order: Usually ships within 8 days.
#14	54-859376	CLIP (1 required per assembly)
		54-859376 - Clip [ More info ] $2.80 $0.90 10+ in stock.
#15	821583	PIN (1 required per assembly)
		821583 - 821583 - PIN O [ More info ] Unavailable Replaced by -821583 2
		821583 2 - Pin (Special) [ More info ] $14.20 Available to order: Usually ships within 8 days.
#47	13715 1	RETAINER (2 required per assembly) (200)
		13715 1 - Retainer [ More info ] $2.80 Available to order: Usually ships within 8 days.
#16	NSS	NOT SOLD SEPARATE, Plug - Serial Number (1 required per assembly)
		NSS - NOT SOLD SEPARATE O [ More info ] Unavailable
#17	12-856774	WASHER, (.406 x .750 x .105) Stainless Steel (10 required per assembly)
		12-856774 - Washer [ More info ] $1.60 10+ in stock.
#47	858858	RETAINER (2 required per assembly) (225) (Cylinder Heads Casting Number # 900-858485C1/C2 Or 900-858483C1/C2)
		858858 - Retainer, NLA [ More info ] $9.00 10+ in stock.
#18	11-40136 10	NUT, (M10) Stainless Steel (10 required per assembly)
		11-40136 10 - Nut - Priced Individually [ More info ] $5.20 2 in stock.
#48	10-818934 14	SCREW, (M8 x 14) (2 required per assembly) (200)
		10-818934 14 - Screw [ More info ] $2.40 Available to order: Usually ships within 8 days.
#19	821225 1	BRACKET (1 required per assembly)
		821225 1 - Bracket [ More info ] $5.90 Available to order: Usually ships within 8 days.
#20	10-821300 16	SCREW, (M6 x 16) (2 required per assembly)
		10-821300 16 - Screw - Priced Individually [ More info ] $4.30 Available to order: Usually ships within 8 days.
#21	822486	BRACKET, Guide (1 required per assembly)
		822486 - Guide Bracket [ More info ] $3.30 Available to order: Usually ships within 8 days.
#49	826624 1	CLAMP (1 required per assembly)
		826624 1 - Clamp [ More info ] $26.84 Available to order: Usually ships within 8 days.
#22	828558 1	ENCODER (1 required per assembly)
		828558 1 - Encoder [ More info ] $203.50 1 in stock.
#51	854486 1	BRACKET (1 required per assembly)
		854486 1 - 854486 1 - BRACKET O [ More info ] Unavailable Replaced by -854486 2
		854486 2 - Bracket [ More info ] $16.41 Available to order: Usually ships within 8 days.
#23	10-821045 10	SCREW, (M5 x 10) (1 required per assembly)
		10-821045 10 - Screw [ More info ] $0.80 Available to order: Usually ships within 8 days.
#52	858356	LEVER, TPI (1 required per assembly)
		858356 - 858356 - LEVER TPI O [ More info ] Unavailable Replaced by -858356 1
		858356 1 - Lever -tps [ More info ] $9.70 1 in stock.
#24	1171-9787A 4	END CAP ASSEMBLY (1 required per assembly)
		1171-9787A 4 - End Cap Assembly [ More info ] $65.00 Available to order: Usually ships within 8 days.
#25	25-62700	O-RING, (3.237 x .103) (1 required per assembly)
		25-62700 - O-Ring [ More info ] $2.80 10+ in stock.
		18-0860-9 - O-Ring 25-62700 2-Pack [ More info ] $5.98 5 in stock.
#26	26-830898 1	SEAL (2 required per assembly)
		26-830898 1 - Seal [ More info ] $23.70 $20.29 Available to order: Usually ships within 8 days.
#54	23-856954	BUSHING (3 required per assembly)
		23-856954 - Bushing [ More info ] $4.90 Available to order: Usually ships within 8 days.
#55	25-834985	GROMMET (3 required per assembly)
		25-834985 - Grommet [ More info ] $2.10 1 in stock.
#27	10-821300 20	SCREW, (M6 x 20) (4 required per assembly)
		10-821300 20 - Screw - Priced Individually [ More info ] $1.90 3 in stock.
#28	857186A 1	PLATE ASSEMBLY (1 required per assembly)
		857186A 1 - 857186A 1 - PLATE ASSEMBLY O [ More info ] Unavailable Replaced by -857186T02
		857186T02 - Plate Assembly -alt [ More info ] $132.08 Available to order: Usually ships within 8 days.
#56	12-65567	WASHER, (.265 x .750 x .048) Stainless Steel (3 required per assembly)
		12-65567 - Washer - Priced Individually [ More info ] $1.65 6 in stock.
#57	10-40011113	SCREW, (M5 x 45) Stainless Steel (3 required per assembly)
		10-40011113 - Screw [ More info ] $2.70 Available to order: Usually ships within 8 days.
#29	23-855729	MOUNT (3 required per assembly)
		23-855729 - Mount [ More info ] $27.75 Available to order: Usually ships within 8 days.
#30	10-821301 45	SCREW, (M10 x 45) (3 required per assembly)
		10-821301 45 - Screw [ More info ] $8.00 Available to order: Usually ships within 8 days.
#58	832952 1	INDICATOR, Throttle Position (1 required per assembly)
		832952 1 - 832952 1 - INDICATOR Throttl O [ More info ] Unavailable Replaced by -832952 10
		832952 10 - 832952 10 - INDICATOR Throttl O [ More info ] Unavailable Replaced by -832952 11
		832952 11 - Throttle Position Indicator [ More info ] $208.25 In stock
#31	10-821301 50	SCREW, (M10 x 50) (2 required per assembly)
		10-821301 50 - Screw [ More info ] $8.90 Available to order: Usually ships within 8 days.
#59	22-32803	PLUG, Pipe (.375-18) Brass (1 required per assembly)
		22-32803 - Plug [ More info ] $4.80 Available to order: Usually ships within 8 days.
		18-4264 - Pipe Plug, 3/8-18 NPT Pi [ More info ] $3.99 $3.41 10 in stock.
#60	22-32802 2	PLUG, Pipe (.125-27) Brass (1 required per assembly) (Digital)
		22-32802 2 - Plug - (brass) - Priced Individually [ More info ] $5.60 Available to order: Usually ships within 8 days.
		18-4263 - Pipe Plug, 1/8-27 NPT Pi [ More info ] $4.49 $3.24 10+ in stock.
#32	25-19565	GROMMET (1 required per assembly)
		25-19565 - Grommet [ More info ] $11.00 10 in stock.
		25-19565002 - Grommet [ More info ] $18.59 Available to order: Usually ships within 8 days.
#33	12-855725	WASHER (6 required per assembly)
		12-855725 - Washer [ More info ] $2.10 Available to order: Usually ships within 8 days.
#61	19385 42	LINK (1 required per assembly)
		19385 42 - 19385 42 - LINK O [ More info ] Unavailable Replaced by -859095
		859095 - 859095 - LINK O [ More info ] Unavailable Replaced by -8M0008113
		8M0008113 - Link [ More info ] $18.67 1 in stock.
#62	54-858902	CLAMP (1 required per assembly)
		54-858902 - Clamp [ More info ] $4.10 Available to order: Usually ships within 8 days.
#34	54-858424	CLAMP (1 required per assembly)
		54-858424 - Clamp [ More info ] $5.30 Available to order: Usually ships within 8 days.
#35	54-858951	J CLIP (1 required per assembly)
		54-858951 - J Clip [ More info ] $4.80 Available to order: Usually ships within 8 days.
#63	12-858950	WASHER (1 required per assembly)
		12-858950 - Washer [ More info ] $2.20 Available to order: Usually ships within 8 days.
#36	10-821300 12	SCREW, (M6 x 12) (2 required per assembly)
		10-821300 12 - Screw - Priced Individually [ More info ] $1.40 10+ in stock.
#65	54-858932	CLIP (1 required per assembly)
		54-858932 - Clip [ More info ] $1.70 1 in stock.
#37	818574	SEAL (2 required per assembly)
		818574 - Cylinder Head Seal [ More info ] $23.30 $19.95 Available to order: Usually ships within 8 days.
#38	25-818573	O-RING (6 required per assembly)
		25-818573 - O-Ring [ More info ] $14.70 Available to order: Usually ships within 8 days.
		18-7400-9 - O-Ring (PK5) 908194 [ More info ] $22.46 $16.22 2 in stock.
#66	858226	TPS COVER (1 required per assembly)
		858226 - 858226 - TPS COVER O [ More info ] Unavailable Replaced by -858226 1
		858226 1 - Cover [ More info ] $15.90 1 in stock.
#-	854198A00	POWERHEAD ASSEMBLY (1 required per assembly) (200)
		854198A00 - POWERHEAD ASSEMBL O NLA [ More info ] Unavailable
#67	858864 1	RETAINER (1 required per assembly)
		858864 1 - Retainer [ More info ] $3.70 Available to order: Usually ships within 8 days.
#-	854199A00	POWERHEAD ASSEMBLY (1 required per assembly) (225) (Cylinder Heads Have No Casting Number)
		854199A00 - POWERHEAD ASSEMBL O NLA [ More info ] Unavailable
		854199R00 - Powerhead 225 Dfi -rm [ More info ] $4,963.00 Available to order: Usually ships within 8 days.
#68	10-818934 20	SCREW, (M8 x 20) (1 required per assembly)
		10-818934 20 - Screw [ More info ] $4.20 Available to order: Usually ships within 8 days.
#-	877869A00	POWERHEAD ASSEMBLY (1 required per assembly) (225) (Cylinder Heads Casting Number 900-858485C1/C2 Or 900-858483C1/C2)
		877869A00 - POWERHEAD ASSEMBL O NLA [ More info ] Unavailable
		877869R00 - Powerhead 225 Dfi -rm [ More info ] $4,963.00 Available to order: Usually ships within 8 days.
#-	27-832934A00	GASKET SET, Powerhead (1 required per assembly)
		27-832934A00 - Gasket Set [ More info ] $135.33 Available to order: Usually ships within 8 days.