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

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 89011A 8 MANIFOLD ASSEMBLY (2 required per assembly)
MANIFOLD ASSY     O - Replaced by -807078A 2  
89011A 8This part has been superseded. MANIFOLD ASSY O - Replaced by -807078A 2
(more info)
    UnavailableUnavailable Parts
MANIFOLD ASSY     O - Replaced by -807078A 4  
807078A 2This part has been superseded. MANIFOLD ASSY O - Replaced by -807078A 4
(more info)
    UnavailableUnavailable Parts
MANIFOLD KIT-EXH  O - Replaced by -807078A 6 807078A 4
807078A 4This part has been superseded. MANIFOLD KIT-EXH O - Replaced by -807078A 6
(more info)
    UnavailableUnavailable Parts
MANIFOLD ASSY-EXH O - Replaced by -807078T09 807078A 6
807078A 6This part has been superseded. MANIFOLD ASSY-EXH O - Replaced by -807078T09
(more info)
    UnavailableUnavailable Parts
MANIFOLD ASSY-EXH O - Replaced by -807078T10  
807078T09This part has been superseded. MANIFOLD ASSY-EXH O - Replaced by -807078T10
(more info)
    UnavailableUnavailable Parts
MANIFOLD ASY-EXHA 807078T10 807078T10
807078T10OEM Part 807078T10 - Exhaust Manifold Assembly (more info) About Mercury Marine $476.67 $476.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
MANIFOLD 18-1957-1
18-1957-1OEM Match 18-1957-1 - Manifold, 89011 (more info) About Sierra Marine $299.99 $231.60 Add to shopping cart
2 in stock. Explain stock levels
MERC CENTER MANI,454 (46#) MC-1-89011 MC-1-89011
MC-1-89011OEM Match MC-1-89011 - Mercruiser Center Manifold 454 (more info) About Barr Marine by EDM $395.00 $266.25 Add to shopping cart
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
16-49545OEM Part 16-49545 - Stud - Priced Individually (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
4 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  
16-52988OEM Part 16-52988 - Stud, NLA (more info) About Mercury Marine $12.50 $12.50 Add to shopping cart
10+ in stock. Explain stock levels
#3 22-33198A 1 PLUG, (3/4-14) (AR required per assembly)
2241622 22-33198A 1  
22-33198A 1OEM Part 22-33198A 1 - Plug (more info) About Mercury Marine $2.50 $2.50 Add to shopping cart
4 in stock. Explain stock levels
PLUG (.750-14) Pi 22-41622 22-41622
22-41622OEM Part 22-41622 - Pipe Plug (more info) About Mercury Marine $7.40 $7.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
Plug, 3/4: Blacksteel 18-4258
18-4258OEM Match 18-4258 - Plug, 3/4: Blacksteel (more info) About Sierra Marine $4.99 $3.56 Add to shopping cart
4 in stock. Explain stock levels
#4 22-73379 PLUG, (.250-18), PIPE (4 required per assembly)
PLUG (.250-18) 22-73379  
22-73379OEM Part 22-73379 - Plug - Priced Individually (more info) About Mercury Marine $5.90 $3.31 Add to shopping cart
10+ 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
27-46820OEM Part 27-46820 - Gasket - Priced Individually Long (more info) About Mercury Marine $19.60 $16.78 Add to shopping cart
4 in stock. Explain stock levels
Gasket 18-0418
18-0418OEM Match 18-0418 - Manifold Gasket Big Bk Chevy (more info)
Replaces OEM #3852472
About Sierra Marine $14.49 $11.74 Add to shopping cart
10+ in stock. Explain stock levels
#6 10-37612 SCREW, (.375-16 x 1.250) (8 required per assembly)
SCREW (.375-16 x 10-37612 10-37612
10-37612OEM Part 10-37612 - Screw - Priced Individually (more info) About Mercury Marine $1.60 $1.60 Add to shopping cart
4 in stock. Explain stock levels
#6 10-48424 SCREW, (.375-16 x 1.620) (8 required per assembly)
SCREW (.375-16 x 10-48424 10-48424
10-48424OEM Part 10-48424 - Screw (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#7 22-16951A 1 COCK ASSEMBLY (2 required per assembly)
2216951Q1 22-16951A 1 22-16951A 1
22-16951A 1OEM Part 22-16951A 1 - Drain Plug Kit (more info) About Mercury Marine $7.00 $7.00 Add to shopping cart
2 in stock. Explain stock levels
PLUG-DRAIN Note: must be ordered in multiples of 2 22-16951Q 1 22-16951Q 1
22-16951Q 1OEM Part 22-16951Q 1 - Drain Plug - Priced Individually (more info) About Mercury Marine $10.60 $10.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
Cyl. Block Drain Tap 18-4218
18-4218OEM Match 18-4218 - Drain 22-16951A1 (more info)
Replaces OEM #0379957
About Sierra Marine $9.99 $7.54 Add to shopping cart
10+ in stock. Explain stock levels
PLUG-DRAIN Note: must be ordered in multiples of 2   22 16951T 1 22-16951T 1
22-16951T 1OEM Part 22-16951T 1 - Drain Plug - Priced Individually (more info) About Mercury Marine $10.60 $10.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 22-36305 ELBOW, (90 Degrees) (2 required per assembly)
ELBOW             O - Replaced by 22-36305T  
22-36305This part has been superseded. ELBOW O - Replaced by 22-36305T
(more info)
    UnavailableUnavailable Parts
ELBOW 22-36305T 22-36305T
22-36305TOEM Part 22-36305T - Elbow (more info) About Mercury Marine $31.70 $27.14 Add to shopping cart
Available to order:
Usually ships
within 8 days
Fitting, Brass 18-8216
18-8216OEM Match 18-8216 - Brass Fitting, 22-36305 (more info) About Sierra Marine $25.54 $19.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#9 27-87105 1 GASKET, ELBOW (2 required per assembly) (USE WITH RISER KITS)
GASKET @2         O - Replaced by 27-818832 27-87105  1
27-87105 1This part has been superseded. GASKET @2 O - Replaced by 27-818832
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-860232 27-818832
27-818832This part has been superseded. GASKET O - Replaced by 27-860232
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-863726 27-860232
27-860232This part has been superseded. GASKET O - Replaced by 27-863726
(more info)
    UnavailableUnavailable Parts
GASKET 27-863726 27-863726
27-863726OEM Part 27-863726 - Gasket (more info) About Mercury Marine $12.50 $12.50 Add to shopping cart
10+ in stock. Explain stock levels
Exhaust Elbow Gasket 18-2849-1
18-2849-1 18-28491 - Exhaust Elbow Gasket MP#283109 - Special Order - No Returns (more info)     UnavailableUnavailable Parts
GASKET-EXHAUST ELBOW MC47-27-87105 MC47-27-87105
MC47-27-87105OEM Match MC47-27-87105 - Exhaust Elbow Gasket (more info) About Barr Marine by EDM $8.00 $6.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#10 27-41813 GASKET, EXHAUST ELBOW (2 required per assembly) (STANDARD COOLING)
GASKET @2         O - Replaced by 27-860233  
27-41813This part has been superseded. GASKET @2 O - Replaced by 27-860233
(more info)
    UnavailableUnavailable Parts
GASKET @2         O - Replaced by 27-863724 27-860233
27-860233This part has been superseded. GASKET @2 O - Replaced by 27-863724
(more info)
    UnavailableUnavailable Parts
GASKET 27-863724 27-863724
27-863724OEM Part 27-863724 - Gasket (more info) About Mercury Marine $13.00 $13.00 Add to shopping cart
10+ in stock. Explain stock levels
Gasket 18-0897
18-0897OEM Match 18-0897 - Gasket, 27-863724 (more info) About Sierra Marine $7.49 $5.13 Add to shopping cart
Available to order:
Usually ships
within 8 days
GASKET   27863724Q 27-863724Q
27-863724QOEM Part 27-863724Q - Gasket (more info) About Mercury Marine $14.00 $14.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
GASKET-EXHAUST ELBOW MC47-27-41813 MC47-27-41813
MC47-27-41813OEM Match MC47-27-41813 - Exhaust Elbow Gasket (more info) About Barr Marine by EDM $4.00 $3.12 Add to shopping cart
Available to order:
Usually ships
within 8 days
SS PLATE,99208A1,W/BLEED MC-20-99208 MC-20-99208
MC-20-99208OEM Match MC-20-99208 - SS Plate, 99208A1, w/ Bleed (more info) About Barr Marine by EDM $14.00 $10.93 Add to shopping cart
10 in stock. Explain stock levels
#11 27-41811 GASKET, EXHAUST ELBOW (2 required per assembly) (CLOSED COOLING)
GASKET            O - Replaced by 27-860231  
27-41811This part has been superseded. GASKET O - Replaced by 27-860231
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-863725 27-860231
27-860231This part has been superseded. GASKET O - Replaced by 27-863725
(more info)
    UnavailableUnavailable Parts
GASKET            * - Replaced by 27-863725  1 27-863725
27-863725This part has been superseded. GASKET * - Replaced by 27-863725 1
(more info)
    UnavailableUnavailable Parts
GASKET 27-863725  1 27-863725  1
27-863725 1OEM Part 27-863725 1 - Gasket (more info) About Mercury Marine $14.00 $14.00 Add to shopping cart
4 in stock. Explain stock levels
Elbow Gasket 18-0672-9
18-0672-9OEM Match 18-0672-9 - Gasket 27-41811 2-Pack (more info) About Sierra Marine $23.98 $19.50 Add to shopping cart
3 in stock. Explain stock levels
SS PLATE,BLOCK OFF MC-20-87918 MC-20-87918
MC-20-87918OEM Match MC-20-87918 - Block Off Plate, SS (more info) About Barr Marine by EDM $14.00 $10.93 Add to shopping cart
4 in stock. Explain stock levels
#12 98502A 2 ELBOW ASSEMBLY, Exhaust (0 - 3" O.D.) (2 required per assembly)
ELBOW ASSY        O NLA 98502A 2
98502A 2 ELBOW ASSY O NLA
(more info)
    UnavailableUnavailable Parts
Manifold Elbow Repl.18-1974 18-1974-1
18-1974-1OEM Match 18-1974-1 - Manifold Elbow Replaces 18-1974 (more info) About Sierra Marine $321.99 $247.88 Add to shopping cart
2 in stock. Explain stock levels
MERC RISER,O DEGREE (23#) MC-20-98502 MC-20-98502
MC-20-98502OEM Match MC-20-98502 - Mercury Riser, O Degree (23 #) (more info) About Barr Marine by EDM $225.00 $175.72 Add to shopping cart
4 in stock. Explain stock levels
#12 98504A 3 ELBOW ASSEMBLY, Exhaust (15 - 3" O.D.) (2 required per assembly)
ELBOW ASSEMBLY Ex 98504A 3 98504A 3
98504A 3OEM Part 98504A 3 - Elbow Assembly (more info) About Mercury Marine $502.00 $502.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
Manifold Elbow Repl. 18-1970-1
18-1970-1OEM Match 18-1970-1 - Riser, 98504A3 (more info) About Sierra Marine $194.99 $144.37 Add to shopping cart
Available to order:
Usually ships
within 8 days
MERC RISER (23#) MC-20-98504 MC-20-98504
MC-20-98504OEM Match MC-20-98504 - Mercury Riser (23 #) (more info) About Barr Marine by EDM $190.00 $148.39 Add to shopping cart
2 in stock. Explain stock levels
#12 44354A 3 ELBOW ASSEMBLY, Exhaust (7 - 4" O.D.) (2 required per assembly)
ELBOW ASY-EXHAUST O - Replaced by -807914A 1  
44354A 3This part has been superseded. ELBOW ASY-EXHAUST O - Replaced by -807914A 1
(more info)
    UnavailableUnavailable Parts
ELBOW ASY-EXHAUST O - Replaced by -807988A 2  
807914A 1This part has been superseded. ELBOW ASY-EXHAUST O - Replaced by -807988A 2
(more info)
    UnavailableUnavailable Parts
ELBOW ASY-EXHAUST O - Replaced by -807988A03 807988A 2
807988A 2This part has been superseded. ELBOW ASY-EXHAUST O - Replaced by -807988A03
(more info)
    UnavailableUnavailable Parts
ELBOW ASSEMBLY Ex 807988A03 807988A03
807988A03OEM Part 807988A03 - Exhaust Elbow, SaltWater (more info) About Mercury Marine $261.08 $261.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
Manifold Elbow Repl.18-1976 18-1976-2
18-1976-2OEM Match 18-1976-2 - Elbow - 4IN CR V6-V8 MP#0992-400 (more info) About Sierra Marine $169.99 $130.33 Add to shopping cart
10 in stock. Explain stock levels
ELBOW 18-1976-1
18-1976-1OEM Match 18-1976-1 - Riser (25 #) (more info) About Sierra Marine $163.68 $123.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
MERC RISER,4 INCH(23#) MC-20-44354 MC-20-44354
MC-20-44354OEM Match MC-20-44354 - Mercury Riser, 4 Inch (23 #) (more info) About Barr Marine by EDM $250.00 $150.88 Add to shopping cart
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 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
#14 32-58616A 2 TUBE, WATER SEPARATION (3" O.D. ELBOW) (1 required per assembly)
TUBE 32-58616A 2 32-58616A 2
32-58616A 2OEM Part 32-58616A 2 - Tubing (more info) About Mercury Marine $123.08 $123.08 Add to shopping cart
10+ in stock. Explain stock levels
#15 22-92499 FITTING, (45 Degrees), EXHAUST ELBOW (45 ) (OPT. required per assembly)
FITTING           O - Replaced by 22-92499T  
22-92499This part has been superseded. FITTING O - Replaced by 22-92499T
(more info)
    UnavailableUnavailable Parts
22865159 22-92499T  
22-92499TOEM Part 22-92499T - Fitting (more info) About Mercury Marine $20.00 $20.00 Add to shopping cart
1 in stock. Explain stock levels
FITTING 45 Degree 22-865159  
22-865159OEM Part 22-865159 - Fitting (more info) About Mercury Marine $16.58 $16.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#15 22-45084 FITTING, Straight, EXHAUST ELBOW (STRAIGHT) (OPT. required per assembly)
22866725 22-45084  
22-45084OEM Part 22-45084 - Connector (more info) About Mercury Marine $25.54 $25.54 Add to shopping cart
6 in stock. Explain stock levels
FITTING Straight 22-866725  
22-866725OEM Part 22-866725 - Steering Fitting 3/4 NPT (more info) About Mercury Marine $12.90 $12.90 Add to shopping cart
3 in stock. Explain stock levels
Brass Connector 18-4461
18-4461OEM Match 18-4461 - Brass Connector (more info) About Sierra Marine $15.63 $12.38 Add to shopping cart
1 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
13-35048OEM Part 13-35048 - LockWasher - Priced Individually (more info) About Mercury Marine $0.90 $0.90 Add to shopping cart
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
11-49838OEM Part 11-49838 - Nut - Priced Individually (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 10-43749 SCREW, (.375-16 x 5.750), MANIFOLD (6 required per assembly) USE WITH 7 EXHAUST ELBOW
SCREW (.375-16 x 10-43749 10-43749
10-43749OEM Part 10-43749 - Screw (more info) About Mercury Marine $6.00 $6.00 Add to shopping cart
2 in stock. Explain stock levels
Bolt 18-8410
18-8410OEM Match 18-8410 - Bolt,10-43749 (more info) About Sierra Marine $7.99 $4.49 Add to shopping cart
1 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 10-44387 10-44387
10-44387OEM Part 10-44387 - Screw (more info) About Mercury Marine $14.80 $14.80 Add to shopping cart
4 in stock. Explain stock levels
Bolt 18-8411
18-8411OEM Match 18-8411 - Bolt (more info) About Sierra Marine $5.99 $5.99 Add to shopping cart
1 in stock. Explain stock levels