1991 Mercruiser 250BM21DS INTAKE MANIFOLD AND FRONT COVER(DESIGN II) Diagram and Parts

1991 Mercruiser 250BM21DS INTAKE MANIFOLD AND FRONT COVER(DESIGN II) Diagram and Parts

Manufacturer:	Mercury Outboard Parts
Catalog:	Mercruiser Parts
Year:	1991
Model:	250BM21DS
Component:	INTAKE MANIFOLD AND FRONT COVER(DESIGN II)
Serial Number:

Parts Microfiche Schematic Breakdown

Diagram of 1991 Mercruiser 250BM21DS INTAKE MANIFOLD AND FRONT COVER(DESIGN II) Diagram and Parts

Parts List by Blowout Reference#

#	Part Number	Description	MSRP	Price	Required	Qty

1	17618	MANIFOLD, Intake (4 BARREL)	$0.00	$0.00	1	OBSOLETE
1	17619	MANIFOLD, Intake (2 BARREL)	$0.00	$0.00	1	OBSOLETE
1	17620	MANIFOLD, Intake (4 BARREL - HI-RISE)	$0.00	$0.00	1	OBSOLETE
2	806681	SCREW, (.375-16 x .875)	$4.17	$3.26	9
2	11975	BOLT, (3-8-16 x 1.25) (3-8-16 X 1-1-4 IN.)	$0.00	$0.00	3	OBSOLETE
3	75435A 1	POINTER	$0.00	$0.00	1	OBSOLETE
4	47512	LIFTING EYE	$0.00	$0.00	1	OBSOLETE
5	34354	SCREW, (.375-16 x 1.50)	$0.00	$0.00	2	OBSOLETE
5A	806250	STUD	$1.10	$0.86	2
5B	32219	NUT, (.375-16)	$0.00	$0.00	2	OBSOLETE
6	N.S.S.	Not Sold Separate, STUD (GM#3959544)	$0.00	$0.00	4	OBSOLETE
7	72647	GUARD	$0.00	$0.00	1	OBSOLETE
8	17145	GASKET SET (Use RTV Silicone Sealant for end gasket - See Service Manual)	$0.00	$0.00	1	OBSOLETE
9	17437	PUMP ASSEMBLY, Water	$0.00	$0.00	1	OBSOLETE
10	34897	GASKET	$0.00	$0.00	2	OBSOLETE
11	32132	SCREW, (.375-16 x 1.750)	$0.00	$0.00	2	OBSOLETE
11	47688	SCREW, (.375-16 x 2.750)	$0.00	$0.00	1	OBSOLETE
11	52200	SCREW, (1.625 In.) (1-1-2 IN.)	$0.00	$0.00	1	OBSOLETE
12	15120T	PULLEY, (5.5 In. Diameter) (5-1-2 IN. DIA.)	$0.00	$0.00	1	OBSOLETE
12	19692T	PULLEY, (7 In. Diameter) (7 IN. DIA.)	$0.00	$0.00	1	OBSOLETE
13	47277	SCREW, (.312-24 x .750)	$0.00	$0.00	4	OBSOLETE
15	75420	BALANCER	$0.00	$0.00	1	OBSOLETE
16	90081A 1	PULLEY (See Note)	$0.00	$0.00	1	OBSOLETE
17	49213A 1	BELT, (44 Inch) (44 IN. - USE WITH 5-1/2 IN. DIA. REF. #12)	$0.00	$0.00	1	OBSOLETE
17	48120A 1	V BELT, (46 Inch) (46 IN. - USE WITH 7 IN. DIA. REF. #12)	$0.00	$0.00	1	OBSOLETE
18	32515	SCREW, (.437-20 x 2.50)	$0.00	$0.00	1	OBSOLETE
19	39131	LOCKWASHER, (.437)	$0.00	$0.00	1	OBSOLETE
20	35332	WASHER	$0.00	$0.00	1	OBSOLETE
21	53833	BOLT, (.375-24 x 2.00)	$0.00	$0.00	3	OBSOLETE
23	34714	WASHER	$0.00	$0.00	3	OBSOLETE
24	35365	SUPPORT USE WHERE APPLICABLE	$0.00	$0.00	2	OBSOLETE
25	35366	SCREW USE WHERE APPLICABLE	$0.00	$0.00	2	OBSOLETE
26	14249A 2	COVER	$0.00	$0.00	1	OBSOLETE
27	97335	SEAL, Oil	$0.00	$0.00	1	OBSOLETE
28	14250	GASKET	$0.00	$0.00	1	OBSOLETE
29	35366	SCREW	$0.00	$0.00	10	OBSOLETE
31	53338	VALVE ASSEMBLY, Filter W/O REMOTE OIL FILTER	$0.00	$0.00	1	OBSOLETE
32	54786	SCREW, (.312-18 x 1.250) W/O REMOTE OIL FILTER	$0.00	$0.00	2	OBSOLETE
33	14957	FILTER, Oil W/O REMOTE OIL FILTER	$0.00	$0.00	1	OBSOLETE
34	14239	RETAINER, Oil Seal (REAR)	$0.00	$0.00	1	OBSOLETE
35	14241	GASKET	$0.00	$0.00	1	OBSOLETE
36	14240	SEAL, Oil (REAR)	$0.00	$0.00	1	OBSOLETE
37	14243	BOLT, (.250-20 x 1.750)	$0.00	$0.00	1	OBSOLETE
38	14242	BOLT, (.250-20 x .875)	$0.00	$0.00	2	OBSOLETE
39	14263	PIN, Dowel	$0.00	$0.00	1	OBSOLETE
40	11996	NUT	$0.00	$0.00	1	OBSOLETE
41	14827	STUD, (.250-20 x 2.180)	$0.00	$0.00	1	OBSOLETE
42	49011	SET SCREW, (.312-18 x .312)	$0.00	$0.00	4	OBSOLETE

* To comply with Mercury policy, Boats.net will not ship OEM Mercury parts outside of the United States.
* Pricing applies to Internet orders only. Required numbers shown are quantities used per whole assembly. Prices are based on a quantity of one (Each). You order one, you get one. Order the quantities needed for your repair.