Exhaust Technology

Manifolds

MADE IN THE USA

3 YEAR WARRANTY
V6 AND V8 MANIFOLDS RISERS

These OSCO Manifolds and Risers replace original Mercruiser manifolds and risers on Chevy V6 and V8 engines after model year 1983. They will accept all original fittings, and gaskets. All six pieces feature improved internal water jackets and exhaust passages, and unlike other brands, the OSCO small block V8 manifold is designed so that the spark plugs can be removed with a standard spark plug wrench without loosening or removing the manifold.

V8 MANIFOLD Part No. 9011. Replaces Mercruiser part #89011, etc. Includes all pipe plugs. Fits big block Chevy. 4" RISER Part No. 4354. Replaces Mercruiser part #44354, etc. Includes all pipe plugs.

V8 MANIFOLD Part No. 7114B. Replaces Mercruiser part #'s 87114B, 87114A8, 87114A19 etc. Includes all pipe plugs. Fits small block Chevy. 3" RISER Part No. 8503A. Replaces Mercruiser part #98503, etc. Will accept original Mercruiser oil filter bracket. Includes all pipe plugs.

V6 MANIFOLD Part No. 9745. Replaces Mercruiser part #'s 99745, 99746, etc. Includes all pipe plugs. Fits V6 Chevy. 3" RISER Part No. 8503A-S. Replaces Mercruiser part #98503, etc. Will not accept original Mercruiser oil filter bracket. Includes all pipe plugs. Not applicable for use with 3" spacers.

ACCESSORIES
MOUNTING KITS

(include manifold or riser gasket and mounting bolts)
KIT Part No. 9011-MK. Fits #9011 manifold above.
KIT Part No. 7214-MK. Fits #7114B manifold above.
KIT Part No. 9745-MK. Fits #9745 manifold above.
KIT Part No. 4354-MK. Fits #4354 riser above.
KIT Part No. 8503A-MK. Fits #8503A riser above.
GASKETS RISER

GASKET, Part No. 8503-GR. Restrictor gasket. Fits above risers. Replaces Mercruiser part #27-41813.
GASKET, Part No. 8503-GO. Open gasket. Fits above risers. Replaces Mercruiser part #27-87105.
GASKET, Part No. 8503-GB. Blank gasket. Fits above risers. Replaces Mercruiser part #27-41811.

WATER FITTINGS GASKETS, MANIFOLD TO HEAD
WATER FITTING Part No. F68C9. 3/4" MPT x 1" ID hose, 90 degree elbow. Replaces Mercruiser part #22-36305. GASKET Part No. CW-GH. Fits #9011 manifold above.
WATER FITTING Part No. F68CS. 3/4" MPT x 1" ID hose, straight. Replaces Mercruiser part #22-45084. GASKET Part No. CV-GH. Fits #7114B manifold above.

GASKET Part No. CS-GH. Fits #9745 manifold above.

V8 MANIFOLDS
These OSCO Manifolds replaces original Mercruiser manifolds on small block V8 Ford and Chevy engines prior to model 1983. They will accept original risers, end plates, brackets and fittings. The Ford manifolds replace Mercruiser model #'s 188, 255, 233, 888, etc.... and the Chevy manifolds replace Mercruiser model #'s 198, 288, 260, 898, etc.
Chevy V8 MANIFOLD Part No. 7234B (port)
Chevy V8 MANIFOLD Part No. 7235B (starboard)
Replace Mercruiser part #'s 77234B, 77235B, etc. Includes all pipe plugs (Note: On V-drive applications where alternator is bracketed to starboard manifold be sure to specify. Part No. 7235B-A for starboard manifold) 		Ford V8 MANIFOLD Part No. 5603 (starboard)
Ford V8 MANIFOLD Part No. 5604 (port)
Replace Mercruiser part #'s 65603, 65604, 54099*, 54100*, etc. Includes all pipe plugs.
*requires 560-MK mounting kit.
RISERS
RISER Part No. 5538.
Replacement for Mercruiser part #'s 55538, 39920, etc. Includes all pipe plugs. 		RISER Part No. 6325.
Replacement for Mercruiser part # 76325 etc. Includes all pipe plugs. 		RISER Part No. 6771.
Replacement for Mercruiser part #'s 76771, 60427, etc. Includes all pipe plugs. 		RISER Part No. 6351.
Replacement for Mercruiser part #'s 76351, 60426, 49964 etc. Includes all pipe plugs.
ACCESSORIES
MOUNTING KITS
 		GASKETS, MANIFOLD TO HEAD
(include gasket and mounting bolts for manifold, riser, or end plate)
KIT Part No. 7214-MK. Fits #7234B and 7235B manifolds
KIT Part No. 560-MK. Fits #5603 and 5604 manifolds
KIT Part No. 6371-MK. Fits #6351 and 6771 risers
KIT Part No. 5538-MK. Fits #5538 riser
KIT Part No. 6325-MK. Fits #6325 riser
KIT Part No. 6371-MK-SP. Fits #6351 riser. Standard 6371-MK kit, with extra gasket and stainless plate.
KIT Part No. 60252-MK. Fits #60252 and 54870 end plates.

WATER FITTINGS
WATER FITTINGPart No. F68C9. 3/4" MPT x 1" ID hose, 90 degree elbow. Replaces Mercruiser part #22-36305.
WATER FITTINGPart No. F68CS. 3/4" MPT x 1" ID hose, straight. Replaces Mercruiser part #22-45084.
 		GASKET Part No. CV-GH. Fits #7234B and 7235B manifolds.
GASKET Part No. FL-GH. Fits #5063 and 5064 manifolds.

OTHER GASKETS, END PLATES, ETC.
RISER GASKET Part No. 52076. Fits #6351, 6771, and 6325 risers.
RISER GASKET Part No. 5538G. Fits #5538 riser.
END PLATE GASKET Part No. 48043. Fits #7234B, 7235B, 5603, and 5604 manifolds.
END PLATE GASKET WITH WATER FITTING Part No. 60252. Fits #7234B, 7235B, 5603, and 5604 manifolds.
END PLATE GASKET WITHOUT WATER FITTING Part No. 54870. Fits #7234B, 7235B, 5603, and 5604 manifolds.
STAINLESS PLATE Part No. 60207. Fits #7234B, 7235B, 5603, and 5604 manifolds.

4CYLINDER
110/120MANIFOLDS 		These OSCO Manifolds are designed to fit most 4 cylinder 110 and 120 engines. They will accept the original Mercruiser two barrel carbuerator and linkage. They can be used with original Mercruiser risers #555538, 39920, etc. Each manifold includes mounting bolts, carburetor mounting plate with gasket and bolts, and drain plug.
MANIFOLD Part No. ME153-LS. For models where the two barrels of the carburetor mount side by side as shown.

MANIFOLD Part No. ME153-LR. For models where the two barrels of the carburetor mount for and aft as shown.

ACCESSORIES
FRONT PLATE Part No. MWS.
Fits ME-153 manifold, and replaces Mercruiser #47638A1.
MOUNTING KIT Part No. MWS-MK.
Includes gasket and bolts.
REAR PLATE Part No. MWF.
Fits ME-153 manifold, and replaces Mercruiser #73811A1.
MOUNTING KIT Part No. MWF-MK.
Includes gaskets and bolts.
GASKET KIT Part No. ME-GK.
Includes all gaskets for above manifold.

ELBOW/RESERVOIR ASSEMBLY


ELBOW/RESERVOIR Part No. 0879. Replacement for Mercruiser part#90880, etc. Used on iron manifold. Includes pipe plugs.
MOUNTING KIT Part No. 0879-MK. Includes 0879-G gasket and mounting bolts.
GASKET Part No. 0879-G. Fits 0879 elbow/reservoir.
 		ELBOW/RESERVOIR Part No. 8561. Replacement for Mercruiser part #98562, tec. Used on aluminium manifold. Includes pipe plugs.
MOUNTING KIT Part No. 8561-MK. Includes 8561-G gasket and mounting bolts.
GASKET Part No. 8561-G. Fits 8561 elbow/reservoir.

THERMOSTATS
These OSCO Thermostat Housings are direct replacements for original Mercruiser thermostat housings on small block and big block Chevy engines.

BASE Part No. MC552-SB. For S/B Chev. Replaces Merc #87290A4.
BASE Part No. MC552-BB. For B/B Chev. Replaces Merc #90736A4.
BASE Part No. MC553-SB. For S/B Chev. Replaces Merc #78984A1.
BASE Part No. MC553-BB. For B/B Chev. Replaces Merc #78985A1.
COVER Part No. MC55-TSB. For S/B Chev. Replaces Merc #47441A1.
COVER Part No. MC55-TBB. For S/B Chev. Replaces Merc #47442A1.
THERMOSTAT ELEMENT Part No. 143-DEG. Replaces Merc #59137.
THERMOSTAT SLEEVE Part No. 47508. Replaces Merc #23-47508.
GASKET Part No. 41812. Cover to base. Replaces Merc #27-41812.
GASKET Part No. 47510. Element to sleeve. Replaces Merc #27-47510.
GASKET Part No. 48818. Cover to base. Replaces Merc #27-48818.
SPACERS
These OSCO Spacers are direct replacements for original Mercruiser spacers on both center riser and end riser style manifolds.
 

3"SPACER Part No. 3320. Fits center riser style manifolds #9011, 7114B, and 9745 shown on page 3. Replaces Mercruiser #93320A3.
6"SPACER Part No. 3322. Fits center riser style manifolds #9011, 7114B, and 9745 shown on page 3. Replaces Mercruiser #93322A3.
3"SPACER Part No. 1851. Fits end riser style manifolds #7234B, 7235B, 5603, and 5604 shown on page 4. Replaces Mercruiser #61851A2, 61851A3.

RISERS AND ELBOWS

RISER Part No. 5639. Replacement for Chrysler #3745639, 2847623, and #E9223M. Includes all pipe plugs.
ELBOW Part No. 794. Replacement for Chrysler #3527794. Includes all pipe plugs.

LOWER ELBOW Part No. 0402. Replacement for Chrysler #2600402. Includes all pipe plugs.
EXTENSION Part No. 4-EXT. Replacement for Chrysler 4 inch extenstion.
LOWER ELBOW Part No. 9234. Replacement for Chrysler #E9234M. Includes all pipe plugs.

RISER Part No. 689. Replacement for Chrysler #2846689. Includes all pipe plugs.
ELBOW Part No. 639. Replacement for Chrysler #2469639 AND 2847405. Includes all pipe plugs.

ACCESSORIES

MOUNTING KIT Part No. 480-MK. Fits riser #689, elbows #794 and #639, and lower elbow #0402. Includes #480 gasket and bolts.
MOUNTING KIT Part No. 480-MK-FW.For fresh water cooling. Fits same as 480-MK above. Includes #480-FW gasket and bolts.
MOUNTING KIT Part No. 7087-MK. Fits riser #5639 and extension #4-EXT. Includes sleeve, O rings, clamps and bolts.
MOUNTING KIT Part No. 121-MK. Fits lower elbow #9234. Includes #121 gasket ad bolts. 		GASKET Part No. 480. Replaces Chrysler end gasket #2847480.
GASKET Part No. 480-FW. For use with fresh water cooling.
GASKET Part No. 121. Replaces Chrysler end gasket #E8121.
SLEEVE Part No. 7087. Replaces Chrysler #3527087 and #E9224M.
O RING SET Part No. 7087-OR. Replaces Chrysler O rings #9225 and 9226 (inner and outer).
CLAMP SET Part No. 5639-CL. Includes 4-clamps, 4 bolts.

4 CYLINDER MANIFOLD

Fits all AQ models numbered 120, 125, 131, 140, 145, and 151, as well as all BB models #140 and 145, plus all other similar models. This improved design features a unique water jacket for better

MANIFOLD Part No. V0418. Replaces Volvo #'s 855387-7 and 834438-4, etc. Includes all pipe plugs and zinc pencil.

V8 MANIFOLD & RISER

These OSCO Manifolds and Risers are direct replacements for original Volvo equipment on small block Chevy V8 engines. They will accept all original gaskets, hoses and fittings. Note that some original Volvo risers require different size mounting bolts. Be sure to order the riser mounting kit if not sure which size you need. Both the OSCO Manifold and Riser have been internally improved to provide better cooling and smoother exhaust flow.
MANIFOLD Part No. 5805. Replaces volvo #'s 835804, 825805, 835806, and 856883, etc. Includes all pipe plugs. RISER Part No. 56879. Replaces volvo #'s 855380, 855384, 856891, and 856879, etc. Includes all pipe plugs.

ACCESSORIES

MOUNTING KITS Part No. VO-MK. Fits #V0418 manifold. Includes mounting bolts and manifold to head gaskets.
MOUNTING KITS Part No. 5805-MK. Fits #5805 manifold. Includes mounting bolts and manifold to head gaskets.
MOUNTING KITS Part No. 56879-MK. Fits #56879 riser. Includes mounting bolts and riser to head gaskets.
 		GASKET Part No. VO-GH. Manifold to head gasket for #V0418 manifold (4pcs).
GASKET Part No. CV-GH. Manifold to head gasket for #5805 manifold.
GASKET Part No. 35908. Riser to manifold gasket for #56879 riser.
SINC PENCIL Part No. VO-ZP. Extra zinc enodes for V0418 manifold.

V8 MANIFOLD & RISER
These OSCO Manifolds and Risers are direct replacements for original OMC equipment used on small block Chevy engines with center riser equipment, from 1989 to today. The riser can also be used on the other OMC engines with center riser equipment, i.e. Ford small block and big block, and Chevy V6 and big block. These manifolds and risers will also replace Volvo center riser equipment used from 1994 to today.

RISER Part No. 50456. Replaces OMC part #'s 913784, 3850456 and Volvo part #3855270-9, etc.
MOUNTING KIT Part No. 50456-MK. Includes #50456-G gasket and mounting bolts.
GASKET Part No. 50456-G. Replaces OMC part #913783 and Volvo part #3850496-5.

MANIFOLD Part No. 52374. Replaces OMC part #'s 914035, 3852374 and Volvo part #3852374-2, etc. Includes pipe plugs, hose cap and clamp.
MOUNTING KIT Part No. 244-MK. Includes manifold to head gasket and mounting bolts.
GASKET Part No. CV-GH. Manifold to head gasket.
HOSE CAP Part No. 2229. 1" ID hose cap for above manifold.
CLAMP Part No. C16. Clamp for hose cap #2229.

V8 MANIFOLDS & RISER
These OSCO Manifolds and Risers are direct replacements for original OMC equipment used on small block Chevy I/O engines from 1979 through 1989. In addition, the riser was also used on some Ford and other center riser Chevy applications as early as 1977. Simply cross reference the original part number with those listed below for proper match. They will accept all original gaskets and fittings.

MANIFOLD Part No. 2441 (starboard). Replaces OMC part #'s 909280, 912441, etc. Includes hose cap and clamp.
MANIFOLD Part No. 2442 (port). Replaces OMC part #'s 909279, 910144, 912442, etc. Includes hose cap and clamp.
 		RISER Part No. 9863. Replaces OMC part #'s 909218, 982680, 909863, etc.
RISER Part No. 9863-T. Tapped for use with fresh water cooled manifold. Includes all pipe plugs.


ACCESSORIES

MOUNTING KIT Part No. 244-MK. Fits above all manifolds. Includes manifold to head gasket and mounting studs with nuts and lockwashers.
GASKET Part No. CV-GH. Replaces OMC #909314. Fits above manifolds.
HOSE CAP Part No. 2228. 1 1/4"ID hose cap for above manifold.
 		MOUNTING KIT Part No. 9863-MK. Fits above riser. Includes riser to manifold gasket and mounting bolts.
GASKET Part No. 9863-G. Replaces OMC #909786. Fits above riser.
CLAMP Part No. C20. Clamp for hose cap #2228.

RISER

The riser will replace the original OMC riser #'s 980188, 980020, etc. It is used on 4 cylinder 140 HP OMC manifolds #980957. etc., and on 6 cylinder 165 HP OMC manifolds #980958, etc. It will also fit the OSCO M0418-01 and M0618-01 manifolds.

RISER Part No. 0188. Includes pipe plugs.
MOUNTING KIT Part No. 0188-MK. Includes gasket and bolts.
GASKET Part No. 0188-G. For 0188 riser.

MANIFOLD END PLATES AND BLOCK OFF PLATES (1/PK)


MC# 60207
AP# 5008
MC# 60252A2
AP# 5005
MC# 73813A1
AP# 5006
MC# 805629A1
AP# 5021


EXHAUST ELBOWS (1/PK)


MC# ?2076A2
AP# 5726
MC# 55538A2
AP# 5702
Complete with Necessary Plugs
MC# 76325A2
AP# 5703
Complete with Necessary Plugs

MC# 76351A2
AP# 5701
Complete with Necessary Plugs
MC# 76771A3
AP# 5707
Complete with Necessary Plugs

MC# 807988A2
AP# 5706
Complete with Necessary Plugs (4")
MC# 98504A3
AP# 5700
Complete with Necessary Plugs (3")
MC# 98562A6
AP# 5724

MC# 90880A2
AP# 5725


Thermostats, Thermostat Kits, Covers & Housings for Mercruiser


STAINLESS STEEL THERMOSTAT HOUSING (1/PK)


MC# 87290A4, 861006A1
AP# 5040


THERMOSTAT COVERS, HOUSINGS & THERMOSTATS (1/PK)


MC# 47441A1 & 47442A1
AP# 5009
MC# 60372A2
AP# 5001
MC# 47587A2
AP# 5000

MC# 78984A1
AP# 5002
MC# 87290A4
AP# 5004
MC# 807252T1
AP# 3057 (143o) 		MC# 807252T2
AP# 3058 (160o)


THERMOSTAT KITS (1 / Display Pack)


AP# 401
MC# Item AP#
59078 T-Stat NSS
27-47590-1 Gasket 307
140 (Degrees)

AP# 407
MC# Item AP#
76270 T T-Stat NSS
27-74830 Gasket 335
27-89656-1 Gasket 341
160 (Degrees)

AP# 409
MC# Item AP#
99155A1 T-Stat NSS
27-89656-1 Gasket 341
160 (Degrees)

AP# 2367
For Most Raw Water Cooled V-6 & V-8 Inboards and Stern Drives (143o) 1996 - Earlier

OEM ITEM AP#
25-30224 O-Ring 227
27-60208 Gasket, T-Stat Cover 326
27-48818-1 Gasket, T-Stat Cover 331
27-4?????? Gasket, T-Stat Cover 354
807????? Thermostat 143o 3057
27-44??12 Gasket, T-Stat Cover 525
27-33179-2 Gasket, T-Stat Cover 1477

 AP# 3222
OEM Item AP#
807252T2 Thermostat 160o 3058
27-47510 Gasket, T-Stat Cover 354
27-27-53045-1 Gasket, T-Stat Cover 418


Centek
Centek information will beadded shortly

FreeCall 1800 677 436

Marine Exhaust Hose


ALSO: DELIVERY & SUCTION HOSE, ORTAC, FUEL LINE

Super flexible rubber hose with wire reinforment for
tight corners and nitrile lined to prevent burn out.

Bore Size Bore Size Clamp
(mm) (inches) size
25 1.00 25-40mm
32 1.25 32-50mm
38 1.50 32-50mm
44 1.75 40-60mm
50 2.00 40-60mm
65 2.50 60-80mm
76 3.00 70-90mm
89 3.50 90-110mm
102 4.00 100-120mm

Standard Exhaust Hose:
Bore Size Bore Size Super Clamp
114 4.50 131-139mm
127 5.00 131-139mm
152 6.00 149-161mm
204 8.00 214-226mm
254 10.00
305 12.00

DISCOUNTS APPLY
Super Clamps available in Stainless Steel and Mild Steel


FORD

6 CYL. & 4 CYL. DIESEL
INTAKE / EXHAUST MANIFOLDS


4 Cylinder


6 Cylinder


Exhaust Elbow: 90° or 45° / 3 1/2" & 4" out.
Manifold to Elbow Flanges & Clamp
Also: Flange from Leeman Manifold to our Elbow


REPLACEMENT
PERKINS 6354 MANIFOLD

ALSO: EXHAUST ELBOW TO SUIT IN 45° & &90deg;
WITH 3 1/2" OR 4" OUT

REPLACEMENT
PERKINS 4108 ELBOW


REPLACEMENT
DETROIT

8.2 LITRE ( 4 STROKE FUEL MISER)

EXHAUST ELBOW


REPLACEMENT
903 CUMMINS
PT. & STDB. MANIFOLD


S/S Hose Clamps, Elbows and Volvo parts
VOLVO REPLACEMENTS

CIRCULATION PUMP AQ 170CP


AQ 170CP
(831-742)

REPLACEMENT VOLVO

STARTERS

NEW & USED


OIL COOLER HOUSING

Volvo 30,40,31,41

 VOLVO "40"
 THERMOSTAT COVER & WATER PIPE

We carry all "40" Cooling System
Gaskets, O'Rings & Seals
in our non-genuine product range.
TRIM/TILT RAM & LINES

RAM TUBE FOR 290, SEAL KITS & HYDRAULIC LINES


  • Hose Kit #854752
  • Ram Cylinder #9-1920
  • Ram Seal Kit #9-1921

NOW ALSO AVAILABLE: MID 290 RAM SEAL KIT Part No.9-1922


REPLACEMENT
DAMPER ASSEMBLY
NOW AVAILABLE
SUIT 20,31,40,41,42
VOLVO STERNDRIVES

AQ 170 MANIFOLD WITH ELBOW


STAINLESS STEEL EXHAUST ELBOWS

Cummins 'C' Series 6" Elbow
Cummins 'B' Series 5" Elbow

Detroit 692 (special)

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