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DRIVE SYSTEMS EXHAUST MANIFOLDS

Having trouble with your manifold? Try our manifold tips page.

FIND THE APPROPRIATE LISTING FOR YOUR MOTOR BELOW.

warning symbol  NOTE!! You MUST PROVIDE THE ENGINE SERIAL NUMBER when ordering.
We cannot send you the correct parts otherwise!

Please, take the time to enter the serial number of your motor in the shopping cart. Thanks!

Note: due to weight, manifolds and risers will incur an additional shipping charge, which will be what it actually costs us to get it to you. Estimated shipping is included in price. If shipping is substantially more, we will notify you.

The various manufacturers are always changing availability and prices on Mercruiser manifolds (including Mercury Marine). We list here a selection of manifolds and risers from Sierra. There are some available not listed here, and in many cases there are other brands we can also get in place of Sierra. If yours is not listed here or if you have other questions, please CONTACT us and we'll see what we can do to help.

MERCRUISER MANIFOLDS & COMPONENTS
PHOTO APPLICATION/DESCRIPTION PRICE SELECT
MERCRUISER MANIFOLD 77234A2 18-1950-1

Click Image To Enlarge
18-1950-1
REPLACES OEM #77234A2
PORT SIDE
MOST M/C GM SMALL BLOCKS WITH END RISER
1977-82
$440.00
MERCRUISER MANIFOLD stbd 77234A2 18-1951-1

Click Image To Enlarge
18-1951-1
REPLACES OEM #77234A2
STBD SIDE
MOST M/C GM SMALL BLOCKS WITH END RISER
1977-82
$470.00
MERCRUISER CENTER RISER 99746A8 18-1952-1

Click Image To Enlarge
18-1952-1
REPLACES OEM #99746A8
FITS 4.3 (262CID) V6 ENGINES 1985 UP
$270.00
MERCRUISER V8 center riser manifold 87114A19 18-1953-2

Click Image To Enlarge
18-1953-2
REPLACES OEM #87114A19
FITS MOST GM SMALL BLOCK CENTER RISER
EITHER SIDE 1983 UP
$240.00
MERCRUISER 4 CYL MANIFOLD KIT 18-1954-1

Click Image To Enlarge
18-1954-1
FITS MOST LATE MODEL 2.5 LITRE (153CID) &
3.0 LITRE (181CID)
WITH ROCHESTER CARB
5 BOLT PATTERN 1983-89
$514.00
Early Mercruiser 3.0L 2 bbl Rochester manifold 96705A1 18-1955-1

Click Image To Enlarge
18-1955-1
REPLACES OEM #96705A1
FITS EARLY MODEL 3.0 LITER (181CID)
WITH ROCHESTER CARB
5 BOLT PATTERN 1968-82
$440.00
18-1956-1 MERCARB 5 BOLT

Click Image To Enlarge
18-1956-3
FITS MOST LATE MODEL 2.5 LITRE (153CID)
3.0 LITRE (181CID) WITH MERCARB 5 BOLT PATTERN 1983-89
$450.00
18-1957-1 89011A8

Click Image To Enlarge
18-1957-2
REPLACES OEM #89011A8
FITS GM V8 BIG BLOCK
EITHER SIDE 1981 UP
$299.00
18-1958-1  65604A4

Click Image To Enlarge
18-1958-1
REPLACES OEM #65604A4
PORT SIDE ONLY
FITS MOST FORD V8 SMALL BLOCKS 1971-77
$475.00
65604A4 18-1962-1

Click Image To Enlarge
18-1962-1
REPLACES OEM #65604A4
STARBOARD SIDE ONLY
FITS MOST FORD V8 SMALL BLOCKS 1971-77
$480.00
58759A10 18-1960-1

Click Image To Enlarge
18-1960-1
REPLACES OEM #58759A10
FITS MERCRUISER GM INLINE 6 ENGINES
1963-81
$999.00
MERCRUISER END PLATE/GASKET 73813A1 18-1990
END PLATE & GASKET
REPLACES OEM # 73813A1
FITS MANIFOLD #'S 18-1955-1 & 18-1960
$35.00
MERCRUISER V6 V8 RISER 3 INCH 18-4009
END CAP
REPLACES ORIGINAL OEM #58759A14
FITS MANIFOLD #'S 18-1955-1 & 18-1960.
ALSO MOST 1978-86 V8 BIG-BLOCK
TRS MODELS
$81.50
MERCRUISER END CAP 47638A1 18-1995
END PLATE
REPLACES OEM #47638A1
FITS MANIFOLD #'S ME153-LS & ME153-LR
(VERY EARLY 2.5L/120 MANIFOLDS) 1968-72
$58.00
MERCRUISER RISER BLOCK-OFF PLATE 47638A1 18-4008
RISER BLOCK-OFF PLATE
REPLACES OEM #60207
FITS MOST 1970'S GM & FORD V8
WITH CLOSED COOLING
$12.50
EARLY 4 CYLINDER 140 RISER 55538A2 18-1791
Click Image To Enlarge
18-1971
REPLACES OEM # 55538A2
FITS EARLY MERCRUISER 140 4 CYLINDER;
1976-77 470; 165 & 200 6-CYL INLINE;
FORD & GM V8 SMALL BLOCK 1982 & OLDER
$184.00
LATE  4 CYLINDER 140 RISER 76325A2 18-1972
Click Riser Image To Enlarge
18-1972
REPLACES OEM # 76325A2
FITS MOST LATE MODEL 120, 140HP APPLICATIONS 1982-95 AND 1977-82 470
IF YOU NEED THE ANGLED ADAPTER TOO, (SEE IMAGE)
IT'S NO LONGER MADE.
REPLACE WITH #18-1975 BELOW. IT IS A
1-PIECE DIRECT REPLACEMENT.
$250.00
MERCRUISER EARLY 120 RISER 55538A2 18-1973
Click Image To Enlarge
18-1973
REPLACES OEM # 55538A2
FITS MOST EARLY MODEL 120HP APPLICATIONS 1982 & OLDER).
$235.00
MERCRUISER  RISER 98504A3 18-1974-1 ZERO°
Click Image To Enlarge
18-1974-1
REPLACES OEM # 98504A3
V6, V8 APPLICATIONS 0°
3" O D RISER
$322.00
LATE MODEL 4 CYLINDER ROUND RISER 12076A2 18-1975-1
Click Image To Enlarge
18-1975-1
REPLACES OEM # 12076A2
FITS LATE MODEL 4 CYLINDER 3.0L/LX AND WILL DIRECTLY REPLACE THE 2.5L 140 HP MANIFOLD
(#18-1973 ABOVE) PLUS THE ANGLED ADAPTER
IT WAS USED WITH IF THE ADAPTER
IS NO GOOD (IT'S NO LONGER MADE)
$250.00
V6, V8 7° RISER 18-1976-1 44354A3 807988A2
Click Image To Enlarge
18-1976-2
REPLACES OEM # 44354A3 & 807988A2
FITS V6, V8 APPLICATIONS
7° 4" O D RISER
$170.00
THERMOSTAT HOUSING 47441A1 18-1977-1
Click Image To Enlarge
18-1977-1
REPLACES OEM # 47441A1
FITS 225, GM 260,228.898/198,195R,898R,228R,2GR
$70.00
RISER, V8 INBOARD APPS ONLY 76771A3 18-1978
Click Image To Enlarge
18-1978
REPLACES OEM # 76771A3
V8 STRAIGHT INBOARD APPLICATIONS ONLY
$340.00
 
 
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We pay the freight out in USA on all orders over $100.00. Orders less than this amount will have a shipping and handling charge of $8.75 added. Some bulky and heavy items will incur additional charges. You will be notified beforehand if this is the case. Remember, all orders receive free technical support from the MasterTech!

 
 

Please review our Warranty, Returns & Refunds policies before you place an order.

DISCLAIMER

The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. This information is disseminated in good faith, however MasterTech assumes NO LIABILITY whatsoever in regard to this service. The information, software, products, and services published on this web site may include inaccuracies or typographical errors. Changes are periodically added to the information herein. Mastertech may make improvements to this site at any time. Parts ordered from this website may or may not be in dealer stock at the time of order. Thank you for reading.