Marine and RV Parts Supply: Osco Parts List

Note: Additional gaskets, plates, spacers, and mounting hardware can be purchased separately. See catalog icon to checkout the many options available. Contact Marine and RV Parts Supply for more details.

Model

Description

Retail Price

Your Price

639

Elbow, 3" Outlet w/90 Degree Down Angle used on I/O

Used for inboard/outboard applications. Replaces Chrysler #’s 2469639 and 2847405. Use mounting kit 480-MK or 480-MK-FW.

$150.00

$97.50

689

Riser, Use w/639 and 794 Elbows

Used with 639 and 794 elbows. Replaces Chrysler # 2846689. Use mounting kit 480-MK or 480-MK-FW.

$151.00

$98.31

794

Elbow, 3" Outlet w/90 Degree Down Angle used on INBD

3" exhaust outlet, 20º down angle. Used for inboard applications. Replaces Chrysler # 3527794. Use mounting kit 480 MK or 480MKFW.

$140.00

$91.00

826

Manifold, Chrysler, LM318-M360 Log Style

$312.00

$202.80

Chrysler LM318-360 Log Style V8 exhaust manifold. Fits 318 - 360 cu.in. Chrysler small block V8 engines. Exact replacement for Chrysler #’s 24695566 and 3675826.

992

Riser

3" outlet, 10º down angle. Replaces Barr # 20-0082. Use mounting kit 992-MK or 992-MK-FW.

$155.00

$100.75

994

Exhaust Manifold 4" Outlet, CTR Rise, GM SM Block

$235.00

$152.75

Manifold. Fits 305 - 350 cu.in. GM Small Block V8 engines. Replaces Barr # CHV-1-83 and Marine Power # 0994-000. Also used on Indmar. Use mounting kit 994-MK.

2018

3” Exhaust Riser, 30 Deg Down Angle

$141.25

$91.81

Riser, 3" outlet, 30º down angle. Replaces Barr # 20-0102 and Indmar #'s 53-2009 and 53-2018. Use mounting kit 992-MK or 992- MK-FW.

2076A2

Exhaust Riser, 4" Outlet w/90 Deg Dn Angle

$195.00

$126.75

4” Exhaust Riser/Bellows Kit. 90 deg. Down angle, Fits 2.6L and 3.2-0L Mercruiser engines. Repl. Early 2 piece riser Merc setup that used offset adaptor. Adaptor is no longer available. Kit includes riser, bellows, and mounting kit. Hose clamps are not included.

2441

OMC/Volvo Exhaust Manifold, 305-350 Log Style STBD

$226.00

$146.90

Manifold, starboard. Fits 305 - 350 cu.in. GM small block V8 Engines. Includes hose cap and clamp. Replaces OMC #’s 909280 and 912441. Use mounting kit 244-MK.

2442

OMC/Volvo Exhaust Manifold, 305-350 Log Style Port

$226.00

$146.90

Manifold, port. Fits 305 - 350 cu.in. GM small block V8 Engines. Includes hose cap and clamp. Replaces OMC #’s 910144, 909279, and 912442. Use mounting kit 244-MK.

4354

Exhaust Riser, 4” Outlet w/7 Deg DN Angle-Late MDL

$169.00

$109.85

4” Exhaust Riser outlet, with 7 deg. Down angle. Used on late model I/O's and Inboards. Replaces Merc. 44354, 807914, and 807988. Uses 4354MK mounting hardward kit.

5603

Exhaust Manifold, 3” Log Style, Starboard

$385.00

$250.25

Exhaust Manifold, log style, 3” for Mercruiser models 215, 225, 233, 255, and 888. Fits Ford small block v8 302-351 cu in. engines.

5604

Exhaust Manifold, 3” Log Style, Port

$385.00

$250.25

Exhaust Manifold, log style, 3” for Mercruiser models 215, 225, 233, 255, and 888. Fits Ford small block v8 302-351 cu in. engines.

6325

Exhaust Riser, 3" Outlet w/90 Deg Dn Angle

Exhaust Riser, 3” w/90 deg. Down angle. Fits 2.5L and 3.0L engines. Requires 6325MK Mounting hardware kit to complete installation.

$165.00

$107.25

6351

Exhaust Riser, 3” Outlet w/90 Deg Dn Angle (I/O)

Exhaust Riser, 3” with 90 deg. Down angle. Used on most Inboard/Outboard (I/O) applications.

$166.25

$108.06

6771

Riser, 3" Exhaust Outlet, 0 Degree Down Angle

Exhaust Riser, 3” with 0 deg. Angle. Used on most Inboard applications.

$222.50

$144.63

50456

Riser

$183.75

$119.44

4” exhaust outlet, 7º down angle. Fits Ford and GM V8 center riser style manifolds. Osco does not offer a manifold for OMC Ford applications. Replaces OMC #’s 913784, 3855270 and 3850456.

99204

4” Exhaust Riser, 10 Deg Down Angle

Riser, 4" outlet, 10º down angle. Replaces Barr # 20-0100. Use mounting kit 992-MK or 992-MK-FW.

$156.25

$101.56

0-188

OMC Riser, 3 3/8" w/90 Degree Down Angle

OMC Riser, 3 3/8" outlet, 90º down angle. Replaces OMC #’s 980020 and 980188. Use mounting kit # 0188-MK.

$175.00

$113.75

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0-188MK

Mounting Kit For 0188

Includes 0188-G gasket and mounting hardware to bolt riser to adapter.

$9.25

$6.00

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244MK

Mounting Kit For 2441-2442 Manifolds

Mounting Kit, manifold. Fits 2441 and 2442 manifolds. Includes CV-GH gasket and mounting hardware.

$38.00

$24.70

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50456MK

Mounting Kit For 50456 Riser

Includes 50456-G gasket and mounting hardware.

$20.00

$13.00

52374 (57579)

OMC/Volvo Exh. Manifold Center Rise 305-350 SM BLK

$265.00

$172.25

Manifold. Fits 305 - 350 cu.in. GM small block V8 Engines. Includes hose cap and clamp. Replaces OMC #’s 914035, 3852374 and VOLVO part # 3852374-2. Fits both sides of engine. Use mounting kit 244-MK. Uses riser number 50456 with mounting kit number 50456MK for riser.

560MK

Mounting Kit For 5603 & 5604 Log Style Manif.

$18.50

$12.03

Mounting Kit for 5603 and 5604 Log Style manifolds. Includes mounting gaskets and mounting hardware. (4 short and 4 long bolts)

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6325MK

Mounting Kit For 6325 Riser

Mounting Kit. Used with 6325 exhaust riser. Includes gasket and mounting hardware.

$9.25

$6.01

6371MK

Mounting Kit For 6351 & 6771 Exh. Risers

$9.25

$6.01

Mounting Kit for 6351 and 6771 exhaust risers. Includes 52076 shown and mounting hardware, not shown.

7114B2

Exhaust Manifold, V8 SM BLK Center Rise – Updated

$202.00

$131.30

Fits 305 - 350 cu. in. GM small block V8 engines. Fits both sides of engine. Replaces Mercruiser #’s 87114 and 860246. Updated to replace all small block Mercruiser center riser manifolds to date. Use mounting kit 7214-MK.

7214MK

Mounting Kit For 7235B And BA Manifolds

Mounting Kit, includes mounting gasket and hardward kit w/4 mounting bolts.

$17.50

$11.38

7234B

Log Style Manifold, 305-350 SM Block, Port

$320.00

$208.00

GM 305-350 cu in. Log Style exhaust manifold. Requires 7214MK Mounting Kit. Includes mtg gasket and mounting hardware. Use 7234B for port side, use 7235B for starboard side, and use 7235BA for V-Drive applications when the alternator bracket is bolted to the stbd manifold. If Exhaust risers are needed, see 6351 and 6771 for applicable requirement. Replaces Merc. 77234 and 77235 manifolds.

7235B

Log Style Manifold, 305-350 SM Block, Starboard

$320.00

$208.00

7235BA

Log Style Manifold, 305-350 SM Block, STBD
V-Drive

$412.50

$268.13

8053AMK

Mounting Kit For 8503A Riser

Fits 8503A riser. Includes 8503-GR gasket and mounting hardware.

$10.50

$6.83

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826MKSS

Mounting Kit for 826, INCL. Gaskets and SS Hardware

$38.00

$24.70

Mounting Kit, manifold. Fits 826 manifold. Includes 826-GH gasket and stainless studs and nuts.

8503A

Exhaust Riser, 3” Outlet w/15 Deg DN Angle-Early ML

$160.00

$104.00

3” Exhaust Riser outlet, with 15 deg. Down angle. Used on early model Mercruiser I/O's. Repl. Merc 98503 and 98504. Uses mounting kit 8053AMK.

9011A

Exhaust Manifold, 4” Center Rise, GM Big Block 454

$294.00

$191.10

Exhaust Manifold, Mercruiser 4”, GM Big Block, 454 cu in. Used on Mercruiser 330, 340, and 7.4L models. Replaces Merc number 89011. Requires mounting kit part number 9011MK. Will use 4354 or 8503A Exhaust Riser as needed for proper installation.

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9011MK

Mounting Kit For 9011A Manifold

$18.38

$11.94

Mounting Kit. Includes Manifold to head gasket and all mounting hardware. Used for 9011 manifold.

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992MK

Mounting Kit, Raw Water Cooling

$9.25

$6.01

Mounting Kit, riser and spacer. Open. Fits riser #’s 992, 99204, and 2018 and 994-S3 spacer. Includes; 992-G open gasket and mounting hardware.

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992MKFW

Mounting Kit, Fresh Water Cooling

$9.25

$6.01

Mounting Kit, riser. Blocked. Fits 992, 99204, and 2018 risers and 994-S3 spacer. Includes 992-G-FW blocked gasket and mounting hardware.

CW994

Exhaust Manifold 4” Outlet, 454 Big Block

$273.75

$177.94

Manifold. Fits 454 cu. in. GM big block V8 engines. Replaces Barr # CHVA-1-84 and Marine Power # 0991-110. Use mounting kit CW994-MK.

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CW994MK

Mounting Kit For 994 Series Manifolds

Mounting Kit, manifold. Incudes CW-GH gasket and mounting hardware.

$18.38

$11.94

FL994

Exh. Manifold, Indmar, Barr, Marine Pwr For Repl.

$285.00

$185.25

Exhaust Manifold, Indmar and Barr, Fits 302 - 351 cu.in. Ford small block V8 engines. Replaces Barr # FM-1-83 and Indmar # 53-2008. Use mounting kit FL994-MK.

FL994MK

Mounting Kit For FL994 Manifold

Mounting Kit, Manifold. Fits FL994 manifold for Indmar, Barr, Marine Power.

$18.38

$11.94

MC552BB

Thermostat Base, Center Rise, GM Big Block

Thermostat base. Fits engines with center riser style manifolds. Fits big block GM 454 cu.in. Replaces Mercruiser # 90736. Uses original Tee fitting.

$128.75

$83.69

MC552SB

Thermostat Base, Center Rise, GM SM Block

Thermostat base. Fits engines with center riser style manifolds. Fits small block GM, V6 and V8 305 – 350 cu.in. Replaces Mercruiser #87290. Uses original Tee fitting.

$128.75

$83.69