Parts for Mercury Marine 250 HP Pro XS (3.0L DFI) Cylinder Block & End Cap

Revise Search: All Models > 250 HP Pro XS (3.0L DFI) > 1B752547 & Up (USA) > Cylinder Block & End Cap

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View diagram and parts list below. Tap to zoom. Scroll down to order.
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 ]

#	61-843034A07	POWERHEAD ASSEMBLY (1 required per assembly) 225
		61-843034A07 - Powerhead 225 Pro Xs [ More info ] Unavailable
#	61-841017A52	POWERHEAD ASSEMBLY (1 required per assembly) 250
		61-841017A52 - Powerhead 250XS [ More info ] Unavailable
#	27-841220A03	GASKET SET, Powerhead (1 required per assembly)
		27-841220A03 - Powerhead Gasket Set [ More info ] $323.75 Available to Order: Usually ships within 10 days.
#1	885-899162A06	CYLINDER BLOCK ASSEMBLY (1 required per assembly) 225
		885-899162A06 - Cylinder Block [ More info ] Unavailable
#1	885-9811T72	CYLINDER BLOCK ASSEMBLY (1 required per assembly) 250
		885-9811T72 - Cylinder Block [ More info ] Unavailable
#2	10-818934 40	SCREW, (M8 x 40) (4 required per assembly)
		10-818934 40 - Screw [ More info ] $4.00 Available to Order: Usually ships within 10 days.
#3	856966 2	BRACKET (2 required per assembly)
		856966 2 - COVER [ More info ] Unavailable
		8M0041759 - Cover [ More info ] Unavailable
		8M0111325 - Cover [ More info ] $44.00 Available to Order: Usually ships within 10 days.
#4	16-90350 9	STUD, (M10 x 1.5 x 64) (4 required per assembly)
		16-90350 9 - Stud [ More info ] $17.17 Available to Order: Usually ships within 10 days.
#5	16-815443 1	STUD, (M10 x 1.5 x 155) (6 required per assembly)
		16-815443 1 - Stud [ More info ] $32.58 Available to Order: Usually ships within 10 days.
#6	17-63779	PIN, Dowel (.250 x .625) (4 required per assembly)
		17-63779 - Pin, Dowel (.250 X .625) [ More info ] $4.90 2 In Stock.
#7	21-878105 1	CHECK VALVE (1 required per assembly)
		21-878105 1 - Check Valve [ More info ] $34.08 8 In Stock.
#8	17-8M0036405	PIN (3 required per assembly)
		17-8M0036405 - Pin - Center Main [ More info ] $4.20 Available to Order: Usually ships within 10 days.
#9	17-43044	PIN, Dowel - Without Hole (.375 x .625) (1 required per assembly)
		17-43044 - Pin -Dowel-solid [ More info ] $2.40 1 In Stock.
#10	22-824502 1	CONNECTOR (1 required per assembly)
		22-824502 1 - Connector [ More info ] $7.90 Available to Order: Usually ships within 10 days.
#11	10-818934 35	SCREW, (M8 x 35) (14 required per assembly)
		10-818934 35 - Screw [ More info ] $3.80 10+ In Stock.
#12	10-824461 80	SCREW, (M10 x 80) (8 required per assembly)
		10-824461 80 - Screw [ More info ] $15.10 Available to Order: Usually ships within 10 days.
#13	824857 7	DEFLECTOR (6 required per assembly)
		824857 7 - Water Deflector [ More info ] $2.50 Available to Order: Usually ships within 10 days.
#14	10-824948 10	SCREW, (M6 x 10) (1 required per assembly)
		10-824948 10 - Screw [ More info ] $0.50 Available to Order: Usually ships within 10 days.
#15	12-856774	WASHER, (.406 x .750 x .105) Stainless Steel (10 required per assembly)
		12-856774 - Washer, (.406 X .750 X .105) Stainless Steel [ More info ] Unavailable
		128M0214963 - WASHER Note: Priced Individually [ More info ] $2.50 10+ In Stock.
#16	11-40136 10	NUT, (M10) Stainless Steel (10 required per assembly)
		11-40136 10 - Nut, (M10) Stainless Steel [ More info ] $7.50 $6.38 10 In Stock.
#17	828358 2	SENSOR (1 required per assembly)
		828358 2 - Sensor Assembly [ More info ] Unavailable
		8M0030022 - Sensor Assembly [ More info ] Unavailable
		8M0082988 - Sensor Assembly [ More info ] $115.83 Available to Order: Usually ships within 10 days.
#18	10-40011107	SCREW, (M5 x 16) Stainless Steel (2 required per assembly)
		10-40011107 - SCREW [ More info ] $1.70 10+ In Stock.
#19	1171-9787A 4	END CAP ASSEMBLY (1 required per assembly)
		1171-9787A 4 - End Cap Assembly [ More info ] $96.58 Available to Order: Usually ships within 10 days.
#20	25-62700	O-RING, (3.237 x .103) (1 required per assembly)
		25-62700 - O-Ring [ More info ] $3.80 Available to Order: Usually ships within 10 days.
#21	26-830898 1	SEAL (2 required per assembly)
		26-830898 1 - Seal [ More info ] $26.25 Available to Order: Usually ships within 10 days.
#22	10-821300 20	SCREW, (M6 x 20) (4 required per assembly)
		10-821300 20 - Screw - Priced Individually [ More info ] $2.60 Available to Order: Usually ships within 10 days.
#23	10-821300 12	SCREW, (M6 x 12) (1 required per assembly)
		10-821300 12 - Screw - Priced Individually [ More info ] $1.70 7 In Stock.
#24	23-42158 1	BUSHING (1 required per assembly)
		23-42158 1 - Bushing [ More info ] $6.70 2 In Stock.
#25	821583 2	PIN, Special (1 required per assembly)
		821583 2 - Pin (Special) [ More info ] $19.70 Available to Order: Usually ships within 10 days.
#26	900-841021A06	CYLINDER HEAD ASSEMBLY, Starboard (1 required per assembly) 225
		900-841021A06 - Cylinder Head Stb [ More info ] $549.86 Available to Order: Usually ships within 10 days.
#26	900-841020A06	CYLINDER HEAD ASSEMBLY, Port (1 required per assembly) 225
		900-841020A06 - Cylinder Head Pt [ More info ] $549.86 Available to Order: Usually ships within 10 days.
#26	900-841021A08	CYLINDER HEAD ASSEMBLY, Starboard (1 required per assembly) 250
		900-841021A08 - Cylinder Head [ More info ] $571.36 Available to Order: Usually ships within 10 days.
#26	900-841020A08	CYLINDER HEAD ASSEMBLY, Port (1 required per assembly) 250
		900-841020A08 - Cylinder Head [ More info ] Unavailable
#27	818574	SEAL (2 required per assembly)
		818574 - Cylinder Head Seal [ More info ] $27.23 1 In Stock.
#28	884391	SEAL (6 required per assembly)
		884391 - Cylinder Bore Seal [ More info ] $20.33 3 In Stock.
#29	10-891570050	SCREW, (M8 x 50) (40 required per assembly)
		10-891570050 - SCREW Note: Priced Individually [ More info ] Unavailable
		10-8M0045380 - Screw - Priced Individually [ More info ] $6.60 4 In Stock.
#30	885599004	THERMOSTAT, 54 Degree C/130 Degree F (2 required per assembly)
		885599004 - Thermostat, 130 Degrees [ More info ] Unavailable
		8M0057307 - Thermostat 130 [ More info ] $129.50 In Stock
		18-3535 - Thermostat, 130 Degrees, 885599004 [ More info ] $116.99 $105.59 10+ In Stock.
#31	27-850318 1	GASKET (2 required per assembly)
		27-850318 1 - Gasket [ More info ] $4.80 10+ In Stock.
#32	887601002	COVER, Port (1 required per assembly)
		887601002 - Port Cover [ More info ] $30.12 10+ In Stock.
#32	887602002	COVER, Starboard (1 required per assembly)
		887602002 -Starboard Cover [ More info ] $28.67 10+ In Stock.
#33	10-821300 25	SCREW, (M6 x 25) (4 required per assembly)
		10-821300 25 - Screw [ More info ] $3.90 5 In Stock.
#34	22-32802 2	PLUG, Pipe (.125-27) Brass (1 required per assembly)
		22-32802 2 - Brass Pipe Plug, Priced Individually [ More info ] $7.30 Available to Order: Usually ships within 10 days.
		18-4263 - Pipe Plug, 1/8-27 NPT, Brass [ More info ] $5.19 $4.70 10+ In Stock.
#35	885342002	SENSOR ASSEMBLY (2 required per assembly)
		885342002 - Sensor Assembly [ More info ] Unavailable
		8M0148668 - Temperature Sensor [ More info ] $46.51 1 In Stock.
#36	25-896699	O-RING, (1.78 mm x .08 mm) (2 required per assembly)
		25-896699 - O-ring, (1.78 Mm X .08 Mm) [ More info ] $12.00 8 In Stock.
#37	857186T02	PLATE ASSEMBLY (1 required per assembly)
		857186T02 - Plate Assembly -alt [ More info ] $196.42 Available to Order: Usually ships within 10 days.
#38	23-855729	MOUNT (3 required per assembly)
		23-855729 - Mount [ More info ] $38.92 Available to Order: Usually ships within 10 days.
#39	10-821301 45	SCREW, (M10 x 45) (3 required per assembly)
		10-821301 45 - Screw [ More info ] $10.60 Available to Order: Usually ships within 10 days.
#40	25-19565002	GROMMET (1 required per assembly)
		25-19565002 - Grommet [ More info ] $29.75 Available to Order: Usually ships within 10 days.
#41	12-855725	WASHER (6 required per assembly)
		12-855725 - Washer [ More info ] $2.10 Available to Order: Usually ships within 10 days.
#42	54-65292	J CLIP (1 required per assembly)
		54-65292 - J Clip [ More info ] Unavailable
		54-8M0024808 - J-CLIP [ More info ] Unavailable
#43	54-858424	CLAMP (1 required per assembly)
		54-858424 - Clamp [ More info ] $7.00 Available to Order: Usually ships within 10 days.
#44	12-29245	WASHER, (.281 x .500 x .060) Stainless Steel (1 required per assembly)
		12-29245 - Washer [ More info ] $0.89 10+ In Stock.
		12-8M0204649 - WASHER Note: Priced Individually [ More info ] $1.20 Available to Order: Usually ships within 10 days.
#45	10-821300 16	SCREW, (M6 x 16) (2 required per assembly)
		10-821300 16 - Screw - Priced Individually [ More info ] $5.70 3 In Stock.
#46	54-858951	J CLIP (1 required per assembly)
		54-858951 - J Clip [ More info ] $6.50 Available to Order: Usually ships within 10 days.