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Parts for MerCruiser 7.4l MIE W / B / W GM 454 V-8 1988-1992 Exhaust Manifold & Exhaust Elbow

#1 89011A 8 MANIFOLD ASSEMBLY (2 required per assembly)
89011A 8 - MANIFOLD ASSEMBLY O - Replaced by -807078A 2
 

This part has been superseded.

89011A 8 - 89011A 8 - MANIFOLD ASSEMBLY O [ More info ]
Unavailable
Replaced by -807078A 2
807078A 2 - MANIFOLD ASSEMBLY O - Replaced by -807078A 4
 

This part has been superseded.

807078A 2 - 807078A 2 - MANIFOLD ASSEMBLY O [ More info ]
Unavailable
Replaced by -807078A 4
807078A 4 - MANIFOLD KIT-EXH  O - Replaced by -807078A 6
807078A 4

This part has been superseded.

807078A 4 - 807078A 4 - MANIFOLD KIT-EXH O [ More info ]
Unavailable
Replaced by -807078A 6
807078A 6 - MANIFOLD ASSEMBLY O - Replaced by -807078T09
807078A 6

This part has been superseded.

807078A 6 - 807078A 6 - MANIFOLD ASSEMBLY O [ More info ]
Unavailable
Replaced by -807078T09
807078T09 - MANIFOLD ASSY-EXH O - Replaced by -807078T10
 

This part has been superseded.

807078T09 - 807078T09 - MANIFOLD ASSY-EXH O [ More info ]
Unavailable
Replaced by -807078T10
MANIFOLD ASY-EXHA 807078T10
807078T10

About Mercury Marine

OEM Part

807078T10 - Exhaust Manifold Assembly [ More info ]

Add to shopping cart $490.00
In stock Explain stock levels

Manifold
18-1957-1

About Sierra Marine

OEM Match

18-1957-1 - Manifold, 89011 - Special Order - No Returns [ More info ]

Add to shopping cart $299.99 $241.60
In stock Explain stock levels

MERC CENTER MANI,454 (46#) MC-1-89011
MC-1-89011

About Barr Marine by EDM

OEM Match

MC-1-89011 - Mercruiser Center Manifold 454 [ More info ]

Add to shopping cart $395.00 $308.50
10+ in stock. Explain stock levels

#2 16-49545 STUD, (3/8 x 1.75) (1-3/4") (6 required per assembly) NOT USED WITH 7 EXHAUST ELBOW
STUD (3/8 x 1.75) 16-49545
16-49545

About Mercury Marine

OEM Part

16-49545 - Stud - Priced Individually [ More info ]

Add to shopping cart $2.10
10+ in stock. Explain stock levels

#2 16-52988 STUD, (.375 x 3.25) (3-1/4") (2 required per assembly) NOT USED WITH 7 EXHAUST ELBOW
STUD,NLA 16-52988
 

About Mercury Marine

OEM Part

16-52988 - Stud, NLA [ More info ]

Add to shopping cart $15.00
10+ in stock. Explain stock levels

#3 22-33198A 1 PLUG, (3/4-14) (AR required per assembly)
2241622 22-33198A 1
 

About Mercury Marine

OEM Part

22-33198A 1 - Plug [ More info ]

Add to shopping cart $2.50
10+ in stock. Explain stock levels

PLUG (.750-14) Pipe 22-41622
22-41622

About Mercury Marine

OEM Part

22-41622 - Pipe Plug [ More info ]

Add to shopping cart $7.60
6 in stock. Explain stock levels

Plug, 3/4: Blacksteel
18-4258

About Sierra Marine

OEM Match

18-4258 - Plug, 3/4: Blacksteel [ More info ]

Add to shopping cart $4.99 $3.56
10+ in stock. Explain stock levels

#4 22-73379 PLUG, (.250-18), PIPE (4 required per assembly)
PLUG (.250-18) 22-73379
 

About Mercury Marine

OEM Part

22-73379 - Plug - Priced Individually [ More info ]

Add to shopping cart $6.00 $3.36
8 in stock. Explain stock levels

#5 27-46820 GASKET, EXHAUST MANIFOLD TO CYLINDER HEAD (2 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-46820
27-46820

About Mercury Marine

OEM Part

27-46820 - Gasket, Manifold to Cylinder Head, Priced Individually [ More info ]

Add to shopping cart $20.20 $17.30
Available to order: Usually ships within 8 days. Explain stock levels

Gasket
18-0418

About Sierra Marine

OEM Match

18-0418 - Manifold Gasket Big Bk Chevy [ More info ]

Add to shopping cart $14.49 $11.74
4 in stock. Explain stock levels

#6 10-37612 SCREW, (.375-16 x 1.250) (8 required per assembly)
SCREW (.375-16 x 1.250) 10-37612
10-37612

About Mercury Marine

OEM Part

10-37612 - Screw - Priced Individually [ More info ]

Add to shopping cart $1.60
5 in stock. Explain stock levels

#6 10-48424 SCREW, (.375-16 x 1.620) (8 required per assembly)
SCREW (.375-16 x 1.620) 10-48424
10-48424

About Mercury Marine

OEM Part

10-48424 - Screw [ More info ]

Add to shopping cart $2.10
10+ in stock. Explain stock levels

#7 22-16951A 1 COCK ASSEMBLY (2 required per assembly)
2216951Q1 22-16951A 1
22-16951A 1

About Mercury Marine

OEM Part

22-16951A 1 - Drain Plug Kit [ More info ]

Add to shopping cart $6.00
10+ in stock. Explain stock levels

PLUG-DRAIN Note: must be ordered in multiples of 2 22-16951Q 1
22-16951Q 1

About Mercury Marine

OEM Part

22-16951Q 1 - Drain Plug - Priced Individually [ More info ]

Add to shopping cart $10.80
6 in stock. Explain stock levels

Cyl. Block Drain Tap
18-4218

About Sierra Marine

OEM Match

18-4218 - Drain 22-16951A1 [ More info ]

Add to shopping cart $9.99 $7.54
Available to order: Usually ships within 8 days. Explain stock levels

PLUG-DRAIN Note: must be ordered in multiples of 2   22 16951T 1
22 16951T 1

About Mercury Marine

OEM Part

22-16951T 1 - Drain Plug - Priced Individually [ More info ]

Add to shopping cart $10.80
1 in stock. Explain stock levels

#8 22-36305 ELBOW, (90 Degrees) (2 required per assembly)
22-36305 - ELBOW (90 Degrees O - Replaced by 22-36305T
 

This part has been superseded.

22-36305 - 22-36305 - ELBOW (90 Degrees O [ More info ]
Unavailable
Replaced by 22-36305T
ELBOW 22-36305T
22-36305T

About Mercury Marine

OEM Part

22-36305T - Elbow [ More info ]

Add to shopping cart $32.50 $27.82
Available to order: Usually ships within 8 days. Explain stock levels

Fitting, Brass
18-8216

About Sierra Marine

OEM Match

18-8216 - Brass Fitting, 22-36305 [ More info ]

Add to shopping cart $25.54 $19.60
6 in stock. Explain stock levels

#9 27-87105 1 GASKET, ELBOW (2 required per assembly) (USE WITH RISER KITS)
27-87105  1 - GASKET            O - Replaced by 27-818832
27-87105  1

This part has been superseded.

27-87105 1 - 27-87105 1 - GASKET O [ More info ]
Unavailable
Replaced by 27-818832
27-818832 - GASKET            O - Replaced by 27-860232
27-818832

This part has been superseded.

27-818832 - 27-818832 - GASKET O [ More info ]
Unavailable
Replaced by 27-860232
27863726 27-860232
27-860232

About Mercury Marine

OEM Part

27-860232 - Gasket [ More info ]

Add to shopping cart $8.00
2 in stock. Explain stock levels

GASKET 27-863726
27-863726

About Mercury Marine

OEM Part

27-863726 - Gasket [ More info ]

Add to shopping cart $13.50
10+ in stock. Explain stock levels

Exhaust Elbow Gasket
18-2849-1

About Sierra Marine

OEM Match

18-28491 - Exhaust Elbow Gasket MP#283109 - Special Order - No Returns [ More info ]

Add to shopping cart $17.20
In stock - special order item. Explain stock levels

GASKET-EXHAUST ELBOW MC47-27-87105
MC47-27-87105

About Barr Marine by EDM

OEM Match

MC47-27-87105 - Exhaust Elbow Gasket [ More info ]

Add to shopping cart $8.00 $6.25
6 in stock. Explain stock levels

#10 27-41813 GASKET, EXHAUST ELBOW (2 required per assembly) (STANDARD COOLING)
27-41813 - GASKET            O - Replaced by 27-860233
27-41813

This part has been superseded.

27-41813 - 27-41813 - GASKET O [ More info ]
Unavailable
Replaced by 27-860233
27863724 27-860233
27-860233

About Mercury Marine

OEM Part

27-860233 - Gasket, Priced Individually [ More info ]

Add to shopping cart $8.00
10+ in stock. Explain stock levels

GASKET 27-863724
27-863724

About Mercury Marine

OEM Part

27-863724 - Gasket [ More info ]

Add to shopping cart $13.30
3 in stock. Explain stock levels

Gasket
18-0897

About Sierra Marine

OEM Match

18-0897 - Gasket, 27-863724 [ More info ]

Add to shopping cart $7.49 $5.13
10+ in stock. Explain stock levels

GASKET   27863724Q
27863724Q

About Mercury Marine

OEM Part

27-863724Q - Gasket [ More info ]

Add to shopping cart $14.30
Available to order: Usually ships within 8 days. Explain stock levels

GASKET-EXHAUST ELBOW MC47-27-41813
MC47-27-41813

About Barr Marine by EDM

OEM Match

MC47-27-41813 - Exhaust Elbow Gasket [ More info ]

Add to shopping cart $4.00 $3.12
Available to order: Usually ships within 8 days. Explain stock levels

SS PLATE,99208A1,W/BLEED MC-20-99208
MC-20-99208

About Barr Marine by EDM

OEM Match

MC-20-99208 - SS Plate, 99208A1, w/ Bleed [ More info ]

Add to shopping cart $14.00 $10.93
6 in stock. Explain stock levels

#11 27-41811 GASKET, EXHAUST ELBOW (2 required per assembly) (CLOSED COOLING)
27-41811 - GASKET            O - Replaced by 27-860231
27-41811

This part has been superseded.

27-41811 - 27-41811 - GASKET O [ More info ]
Unavailable
Replaced by 27-860231
27863725 27-860231
27-860231

About Mercury Marine

OEM Part

27-860231 - Gasket [ More info ]

Add to shopping cart $8.00
10+ in stock. Explain stock levels

27-863725 - GASKET            * - Replaced by 27-863725  1
27-863725

This part has been superseded.

27-863725 - 27-863725 - GASKET * [ More info ]
Unavailable
Replaced by 27-863725 1
GASKET 27-863725  1
27-863725  1

About Mercury Marine

OEM Part

27-863725 1 - Gasket [ More info ]

Add to shopping cart $14.70
10+ in stock. Explain stock levels

Elbow Gasket
18-0672

About Sierra Marine

OEM Match

18-0672-9 - Gasket 27-41811 2-Pack [ More info ]

Add to shopping cart $23.98 $19.50
3 in stock. Explain stock levels

SS PLATE,BLOCK OFF MC-20-87918
MC-20-87918

About Barr Marine by EDM

OEM Match

MC-20-87918 - Block Off Plate, SS [ More info ]

Add to shopping cart $14.00 $10.93
8 in stock. Explain stock levels

#12 98502A 2 ELBOW ASSEMBLY, Exhaust (0 - 3" O.D.) (2 required per assembly)
98502A 2 - ELBOW ASSEMBLY Ex O NLA
98502A 2

About Mercury Marine

OEM Part

98502A 2 - ELBOW ASSEMBLY Ex O NLA [ More info ]
Unavailable
Manifold Elbow Repl.18-1974
18-1974-1

About Sierra Marine

OEM Match

18-1974-1 - Manifold Elbow Replaces 18-1974 [ More info ]

Add to shopping cart $321.99 $247.88
4 in stock. Explain stock levels

MERC RISER,O DEGREE (23#) MC-20-98502
MC-20-98502

About Barr Marine by EDM

OEM Match

MC-20-98502 - Mercury Riser, O Degree (23 #) [ More info ]

Add to shopping cart $225.00 $175.72
6 in stock. Explain stock levels

#12 98504A 3 ELBOW ASSEMBLY, Exhaust (15 - 3" O.D.) (2 required per assembly)
ELBOW ASSEMBLY Exhaust 98504A 3
98504A 3

About Mercury Marine

OEM Part

98504A 3 - Elbow Assembly [ More info ]

Add to shopping cart $583.33
In stock Explain stock levels

Manifold Elbow Repl.
18-1970-1

About Sierra Marine

OEM Match

18-1970-1 - Riser, 98504A3 [ More info ]

Add to shopping cart $194.99 $144.37
In stock Explain stock levels

MERC RISER (23#) MC-20-98504
MC-20-98504

About Barr Marine by EDM

OEM Match

MC-20-98504 - Mercury Riser (23 #) [ More info ]

Add to shopping cart $190.00 $148.39
5 in stock. Explain stock levels

#12 44354A 3 ELBOW ASSEMBLY, Exhaust (7 - 4" O.D.) (2 required per assembly)
44354A 3 - ELBOW ASSEMBLY Ex O - Replaced by -807914A 1
 

This part has been superseded.

44354A 3 - 44354A 3 - ELBOW ASSEMBLY Ex O [ More info ]
Unavailable
Replaced by -807914A 1
807914A 1 - ELBOW ASSEMBLY Ex O - Replaced by -807988A 2
 

This part has been superseded.

807914A 1 - 807914A 1 - ELBOW ASSEMBLY Ex O [ More info ]
Unavailable
Replaced by -807988A 2
807988A 2 - ELBOW ASSEMBLY Ex O - Replaced by -807988A03
807988A 2

This part has been superseded.

807988A 2 - 807988A 2 - ELBOW ASSEMBLY Ex O [ More info ]
Unavailable
Replaced by -807988A03
ELBOW ASSEMBLY Exhaust 807988A03
807988A03

About Mercury Marine

OEM Part

807988A03 - Exhaust Elbow, SaltWater [ More info ]

Add to shopping cart $268.41
In stock Explain stock levels

Manifold Elbow Repl.18-1976
18-1976-2

About Sierra Marine

OEM Match

18-1976-2 - Elbow - 4 inch, V6-V8, 44354A3, 807914A1 [ More info ]

Add to shopping cart $169.99 $130.33
In stock Explain stock levels

MERC RISER,4 INCH(23#) MC-20-44354
MC-20-44354

About Barr Marine by EDM

OEM Match

MC-20-44354 - Mercury Riser, 4 Inch (23 #) [ More info ]

Add to shopping cart $250.00 $154.43
10+ in stock. Explain stock levels

#13 22-36382 FITTING, (.250-18 x .62) Brass, PIPE - EXHAUST ELBOW (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
Available to order: Usually ships within 8 days. 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

#14 32-58616A 2 TUBE, WATER SEPARATION (3" O.D. ELBOW) (1 required per assembly)
TUBE 32-58616A 2
32-58616A 2

About Mercury Marine

OEM Part

32-58616A 2 - Tubing [ More info ]

Add to shopping cart $126.16
10+ in stock. Explain stock levels

#15 22-92499 FITTING, (45 Degrees), EXHAUST ELBOW (45 ) (OPT. required per assembly)
22-92499 - FITTING (45 Degre O - Replaced by 22-92499T
 

This part has been superseded.

22-92499 - 22-92499 - FITTING (45 Degre O [ More info ]
Unavailable
Replaced by 22-92499T
22-92499T - FITTING (45 Degre O - Replaced by 22-865159
 

This part has been superseded.

22-92499T - 22-92499T - FITTING (45 Degre O [ More info ]
Unavailable
Replaced by 22-865159
FITTING 45 Degree 22-865159
 

About Mercury Marine

OEM Part

22-865159 - Fitting [ More info ]

Add to shopping cart $17.16
Available to order: Usually ships within 8 days. Explain stock levels

#15 22-45084 FITTING, Straight, EXHAUST ELBOW (STRAIGHT) (OPT. required per assembly)
22866725 22-45084
 

About Mercury Marine

OEM Part

22-45084 - Connector [ More info ]

Add to shopping cart $25.54
6 in stock. Explain stock levels

FITTING Straight (.750- 22-866725
22-866725

About Mercury Marine

OEM Part

22-866725 - Brass Fitting, 3/4 NPT [ More info ]

Add to shopping cart $13.20
Available to order: Usually ships within 8 days. Explain stock levels

Brass Connector
18-4461

About Sierra Marine

OEM Match

18-4461 - Brass Connector [ More info ]

Add to shopping cart $15.63 $12.38
2 in stock. Explain stock levels

#16 13-35048 LOCKWASHER, (.375), MANIFOLD STUD (8 required per assembly) NOT USED WITH 7 EXHAUST ELBOW
LOCKWASHER (.375) 13-35048
13-35048

About Mercury Marine

OEM Part

13-35048 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $0.90
10+ in stock. Explain stock levels

#17 11-49838 NUT, MANIFOLD STUD (8 required per assembly) NOT USED WITH 7 EXHAUST ELBOW
NUT Note: must be ordered in multiples of 5 11-49838
11-49838

About Mercury Marine

OEM Part

11-49838 - Nut - Priced Individually [ More info ]

Add to shopping cart $0.80
2 in stock. Explain stock levels

#18 10-43749 SCREW, (.375-16 x 5.750), MANIFOLD (6 required per assembly) USE WITH 7 EXHAUST ELBOW
SCREW (.375-16 x 5.750) 10-43749
10-43749

About Mercury Marine

OEM Part

10-43749 - Screw [ More info ]

Add to shopping cart $6.10
2 in stock. Explain stock levels

Bolt
18-8410

About Sierra Marine

OEM Match

18-8410 - Bolt,10-43749 [ More info ]

Add to shopping cart $7.99 $4.49
2 in stock. Explain stock levels

#18 10-44387 SCREW, (.376-16 x 6.750), MANIFOLD (2 required per assembly) USE WITH 7 EXHAUST ELBOW
SCREW (.376-16 x 6.750) 10-44387
10-44387

About Mercury Marine

OEM Part

10-44387 - Screw [ More info ]

Add to shopping cart $15.20
4 in stock. Explain stock levels

Bolt
18-8411

About Sierra Marine

OEM Match

18-8411 - Bolt [ More info ]

Add to shopping cart $5.99
1 in stock. Explain stock levels