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Mfr.
Barr Marine by EDM
| Mfr No. 1-380446
Choke Heat Source, 1-380446. For use with 981462 manifold. Fits O.M.C. 120 hp 2.5L Chevrolet engines...
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$42.46
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-20-907765
Direct Replacement Exhaust Elbow to Hose Adapter, OMC-20-907765. Fits O.M.C. 120 hp 2.5L Chevrolet engines...
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$55.38
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Mfr.
Barr Marine by EDM
| Mfr No. 1-910280
Direct Replacement Front End Cap, 1-910280. Replaces OMC # 910280. Fits O.M.C. 120 hp 2.5L Chevrolet engines...
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$61.82
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-20-909368
Direct Replacement High Rise to Adapter Elbow, OMC-20-909368. For use with 980536 riser. Fits O.M.C. 120 hp 2.5L Chevrolet engines...
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$67.27
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-1-981462
Direct Replacement OMC 120 2.5L Log Style Exhaust Manifold, OMC-1-981462. Uses choke heat source through end cap. Replaces OMC # 979729 & 980459. Fits OMC (Chevrolet) 4-Cylinder 153 C.I.D...
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$278.67
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-1-984054
Direct Replacement OMC 140hp 3.0L Log Style Exhaust Manifold, OMC-1-984054. For OMC 181 C.I.D. 140hp 3.0L 4 cylinder engines Replaces OMC part #’s 998083, 980460, 980957 and 982490...
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$357.88
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-1-982657
Direct Replacement OMC Model 120 Exhaust Manifold, OMC-1-982657. Uses choke heat source through exhaust port. Fits OMC 4-Cylinder 153 C.I.D. 120 H.P. 2.5 Liter Chevrolet engines...
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$286.30
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-20-980536
Direct Replacement Riser, OMC-20-980536. Replaces OMC # 979730 & 980536. Fits O.M.C. 120 hp 2.5L Chevrolet engines...
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$154.93
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Mfr.
Barr Marine by EDM
| Mfr No. OMC-20-908014
Manifold to Riser Adapter, OMC-20-908014. For use with OMC riser # 980188 & 910380. Fits O.M.C. 120 hp 2.5L Chevrolet engines...
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$72.00
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Mfr.
Barr Marine by EDM
| Mfr No. OMC47-908013
OMC Riser Gasket OMC47-908013 - Pack of 5. OMC Riser Gaskets for OMC-20-908014...
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$15.00
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Mfr.
Osco Motors
| Mfr No. MO4-HO
Exhaust Manifold Adapter Plate Gasket, MO4-HO. Converts large intake port 181 CID manifolds to the high output small intake port cylinder heads. Included in the MO4-HOK kit...
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Request Availability
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Mfr.
Sierra
| Mfr No. 18-1901
Exhaust Manifold, OMC 140 HP 3.0L 4 Cylinder, 984054, 18-1901. Fits most 140 HP 3.0L 4 Cylinder...
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$504.03
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Mfr.
Sierra
| Mfr No. 18-1903
Exhaust Manifold, V8 OMC Sterndrive, 1979-1989 (Port Side), 18-1903 fits most GM V8 small blocks with end riser...
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$164.56
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Mfr.
O.M.C.
| Mfr No. 0986994
OMC 3.0 Exhaust Manifold, OMC 3.0L, 986994. Fits Various 3.0 OMC applications W/Holley Carb...
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$640.00
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Products: 1 - 14 of 14
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Post a question or comment about OMC 4 Cylinder Manifolds to our online boating community.
OMC exhaust manifold
I have a 909466 exhaust manifold for a 1977 Apollo boat with a 120hp 153 chevy motor and was wondering if you have a replacement? It’s possible that the last number is a 8 but it appears to be a 6.
Thanks in advance for your responce Submitted by: 77 APOLLO
Replacement Exhaust
Is the replacement exhaust manifold 1-984054 reqiure the Mounting Kit for 984054 Manifold? Are they longer than the orginal bolts? The reason I am asking is the replacement manifold bolt holes are not the same as the orginal. They are not recessed for a socket to fit to tighten. I can send pictures if it helps. Submitted by: Bruce
You don’t need to order the mounting kit unless your old bolts are in poor condition. No difference, these are tight and you need to use a combination wrench on most of the nuts.
I have a manifold on a 2.5L omc. The date stamped on it is 4-9-84
I have a manifold on a 2.5L omc. The date stamped on it is 4-9-84. The part# stamped on it is 910387. I have only been able to find manifolds online with a part# of 982657. Is there a differenc? Are they the same? Are the gasket kits the same? Thanks. Submitted by: Frank Schlofer
Whats the firing order on a 4 cyl OMC?
Whats the firing order on a 4 cyl OMC? Answer Should be 1-3-4-2. Submitted by: Don
Thank you for submitting your review. Submissions are typically posted within 2 business days, pending approval.
Thank you for your submission. Most questions and comments are typically posted with a response within 2 business days.
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