Exhaust Mounting Kit Mercruiser
| Part # & Price | Description |
BARMC-20-55730
$22.95 | Plate Block Off Stainless Steel Mercruiser V8 Log Style Fresh Water Cooled 55730 stainless steel block off plate that was used on the older Mercruiser V-8 engines with log style manifolds and fresh water cooling. It is sandwiched between 2 riser gaskets and placed between the manifold and riser to block the coolant from escaping out of the riser. Replaces Mercruiser part # 55730 |
BARMC-20-87918
$19.95 | Block Off Plate Stainless Steel for Mercruiser Center Riser BARMC-20-87918 Direct replacement stainless fresh water-cooling block off plate for use with Mercruiser Models: (V6 229 and 262 cid) 185, 205; (V8 Small Block) 898, 228 and 260; (V8 Big Block) 330, 340, 454 Magnum |
BARMC-20-99208
$22.95 | Plate Block Off Stainless with Vent Hole for Mercruiser Fresh Water Cooled Riser Direct replacement stainless block off plate with bleeder "vent" holes for use with Mercruisers with fresh water cooling |
GLM32175
$12.95 | Manifold Mounting Kit, Mercruiser V6 Manifold Mounting Kit for Mercruiser 4.3L V6 includes 1 manifold gasket, 6 mounting bolts |
GLM53100
$6.95 | Riser Mounting Kit, Mercruiser, 6371 Style Riser Mounting Kit for Mercruiser. Fits 76351A2 (GLM51120, OSC6351) and 76771A2 (GLM51120, OSC6771) Risers  |
GLM53110
$8.95 | Riser Mounting Kit, Mercruiser, GLM51130 Riser Mounting Kit for GLM51130 Riser on Mercruiser |
GLM53120
$13.95 | Riser Mounting Kit, Mercruiser, 8561 Style Riser Mounting Kit for Mercruiser with Aluminum Manifolds. (8561 Style) |
GLM53130
$10.95 | Riser Mounting Kit, Mercruiser, Cast Iron Manifolds Riser Mounting Kit for Risers on Mercruiser with Cast Iron Manifolds |
GLM53300
$10.95 | Riser Mounting Kit, Mercruiser, 3" Riser Without Spacer Mounting Kit for 3" Riser on Mercruiser without Spacer, Raw Water Cooled |
GLM53330
$35.95 | Riser Mounting Kit, Mercruiser, 3" Riser, 3" Spacer Riser Mounting Kit fits Mercruiser with 3" Riser and 3" Spacer, Raw Water Cooled |
GLM53360
$16.95 | Riser Mounting Kit, Mercruiser, 3" Riser, 6" Spacer Riser Mounting Kit for Mercruiser with 3" Riser and 6" Spacer |
GLM53400
$18.95 | Riser Mounting Kit, Mercruiser 4" (4354 Style ) Riser Mounting Kit For A Mercruiser V-6 or V-8 With 4 Inch Center Risers. Mercruiser Started Using 4 Inch Center Risers during 1986, Which Was A Transition Year to go From 3 Inch To 4 Inch. After 1986, they Are All 4 Inch. This Fits Center Riser Manifolds That Use an Osco Riser 4354, Or A GLM Riser 51140. |
GLM53430
$66.95 | Mounting Kit, Elbow, Mercruiser 4 inch riser with 3 inch spacer Elbow Mounting Kit for Raw Water Cooled Mercruiser with 4 inch Risers and 3 inch spacers. |
MER10-43749
$4.95 | Riser Bolt for 4354 Riser, Mercruiser Riser Bolt 5-3/4" for 4354 Risers  |
MER10-44387
$12.95 | Screw, Riser, 6-3⁄4", Mercruiser Riser Bolts 6-3/4" |
MER10-865982005
$2.25 | Riser Bolt for V8 Riser Mercruiser For mounting risers in some Mercruiser V8s .375 x 1.00 x 16 with flange |
OSC1851MK
$39.95 | Spacer Mounting Kit for Mercruiser OSC1851 Spacer mounting kit fits Osco # 1851 Spacer 
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OSC2076MK
$6.95 | Riser Mounting Kit for Mercruiser OSC2076 Riser Mounting Kit for Osco # 2076 Riser Replaces: Sierra # 18-8551; Mallory # 9-40585 Osco Manifolds and Risers come with a 3-year limited warranty (PDF)!
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OSC3320-MK
$22.95 | Riser Mounting Kit for Mercruiser Mounting Kit For 3" Spacer with 3" Riser on Mercruiser Replaces: Barr # MC-20-93320A3P; GLM # 53331; Sierra # 18-8554; Mallory # 9-40582
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OSC3320-MK-X
$22.95 | Riser Mounting Kit for Mercruiser using 3 Inch Spacer Block and 4 Inch Riser Mounting Kit For 3" Spacer with 4" Riser on Mercruiser Replaces: Barr # MC-20-93320A3P; GLM # 53430; Sierra # 18-8555; Mallory # 9-40583 |
OSC3322MK
$7.95 | Riser Mounting Kit, 6" for Mercruiser Mounting Kit for 6" Spacer with 4" Riser on Mercruiser Replaces: Barr # MC-20-93322A3P; GLM # 53361; Sierra # 18-8556; Mallory # 9-40584 |
OSC4354-MK
$17.95 | Riser Mounting Kit for Mercruiser OSC4354 Riser Mounting Kit fits Osco # 4354 risers on Mercruiser Replaces: Barr # MC-20-44354P; GLM # 53400; Sierra # 18-8505; Mallory # 9-40578
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OSC48043
$4.00 | End Cap Gasket for Mercruiser End Plate Gasket fits Osco # 60252 & Osco # 54870 end caps
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OSC54870
$19.95 | Manifold End Plate, Rear, for Mercruiser End Plate for an Exhaust Manifold on a Mercruiser. It is a Plain End Plate and does not have a Hose Bib. It is used on some GM inline 6 engines, plus small block Ford & GM V-8 engines. The gasket for it is Osco # 48043. It will fit the following manifolds: Osco # 7234B, Osco # 7235B, Osco # 5603, Osco # 5604 manifolds & many 4 cyl. Applications without water fittings. Replaces: Mercury Quicksilver # 54870; Barr # 1-54870; Sierra # 18-1912; Mallory # 9-40542
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OSC5538-MK
$7.95 | Exhaust Mounting Kit for Mercruiser Mounting Kit fits Osco # 5538 risers Replaces Barr # MC-20-55538P; Sierra # 18-8508; Mallory # 9-40571
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OSC560-MK
$12.95 | Manifold Mounting Kit for Mercruiser Mounting Kit fits Osco # 5603, Osco # 5604 manifolds Replaces: Sierra # 18-8509; Mallory # 9-40572
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OSC60207
$10.95 | Manifold Plate, Stainless Steel, for Mercruiser Stainless Steel Plate with a weep hole used on log style Mercruiser manifolds prior to 1983. The Plate is sandwiched between 2 Osco # 6351-G gaskets and fits Osco # 7234B, Osco # 7235B, Osco # 5603, Osco # 5604 manifolds with raw water cooling. Replaces: Mercury Quicksilver # 60207; Barr # MC-20-60207; GLM # 50006; Sierra # 18-4008; Mallory # 9-40540
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OSC60252
$31.95 | Manifold End Plate for Mercruiser 60252 End Plate for Mercruiser V8 Log Style manifolds. This plate has a Hose Bib, and uses mounting kit Osco # 60252-MK. End Plate fits Osco # 7234B, Osco # 7235B, Osco # 5603, Osco # 5604 manifolds & many 4 cyl. Applications with water fittings. This item replaces Merc. oem # 60252. Replaces: Mercury Quicksilver # 60252A2; Barr # 1-60252; GLM# 51010; Sierra # 18-4009; Mallory # 9-40541
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OSC60252-MK
$7.95 | Manifold End Plate Mounting Kit for Mercruiser End Plate Mounting Kit for a Mercruiser. This is for the End Plates on the Ford and GM log style Manifolds prior to 1983. The kit contains the Gasket and mounting hardware. Mounting Kit fits Osco # 60252. Includes Osco # 48043. Replaces: Barr # 1-60252P; Sierra # 18-8512; Mallory # 18-40570
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OSC6325-MK
$7.95 | Riser Mounting Kit for Mercruiser OSC6325 Riser Mounting Kit fits Osco # 6325 risers Replaces: Barr # MC-20-60426P; Sierra # 18-8552; Mallory # 9-40586
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OSC6371-MK-SP
$16.95 | Mounting Kit, for Risers: OSC6351, OSC6771 Riser Mounting Kit fits Osco # 6351, GLM # 51120, and Osco # 6771 Risers. Includes Osco # 60207 stainless plate with weep hole, (2) Osco # 6351-G riser gaskets and hardware. Not for fresh water/closed cooling systems. Fits GM Small Block V8, 305-350 cid, models 198, 228, 898 Fits Ford Small Block V8, 302-351 cid, models 215, 225, 233, 255, 888 Replaces: Sierra # 18-8514; Mallory # 9-40579
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OSC7214-MK
$12.95 | Manifold Mounting Kit for Mercruiser OSC7114B, OSC7214, OSC7234B, OSC7235B Manifolds Mounting Kit For a Mercruiser Center Riser Manifold. It fits a small block GM from 1983 & up using Osco # 7114B, Osco # 7234B, Osco # 7235B manifolds. This kit contains the gasket from the manifold to the cylinder, and the mounting hardware. Replaces: Sierra # 18-8520; Mallory # 9-40573
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OSC8503-SS
$15.95 | Plate Block Off Stainless Steel for Mercruiser Center Riser Fresh Water Cooling Direct replacement stainless fresh water cooling block off plate for use with Mercruiser Center Riser Non Dry Joint Exhaust Systems. |
OSC8503A-MK
$7.95 | Riser Mounting Kit for Mercruiser OSC8503A Riser Mounting Kit fits Osco # 8503A risers Replaces: GLM # 53300; Sierra # 18-8529; Mallory # 9-40580 |
OSC8759-MK
$29.95 | Manifold Mounting Kit for Mercruiser OSC8759 Manifolds Mounting Kit fits Osco # 8759 manifolds Replaces: Sierra # 18-8531; Mallory # 9-40574
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OSC9011-MK
$12.95 | Manifold Mounting Kit for Mercruiser OSC9011 Manifolds Mounting kit for a Mercruiser Center Riser Exhaust Manifold on Big Block applications. The kit includes a manifold gasket and bolts for one side and fits Osco # 9011 manifolds. Replaces: GLM # 33765; Sierra # 18-8532; Mallory # 9-40575
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OSC9745-MK
$12.95 | Manifold Mounting Kit for Mercruiser OSC9745 Manifolds Mounting Kit fits Osco # 9745 manifolds Replaces: GLM # 32175; Sierra # 18-8533; Mallory # 9-40576
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OSC992MK
$7.95 | Riser Mounting Kit, fits OSC992 Risers for Mercruiser, Volvo Penta Mounting Kit fits Osco # 992 risers Replaces: Barr # 20-0082-P; Sierra # 18-4364; Mallory # 9-40171
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OSC992MK-FW
$7.95 | Riser Mounting Kit, for OSC992 Risers, Fresh Water Cooled Mounting Kit fits Osco # 992, Osco # 99204, and Osco # 2018 risers on Fresh Water Cooled applications Replaces: Sierra # 18-8535; Mallory # 9-40173
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OSCCRR-MK
$7.95 | Mounting Kit, Riser for Mercruiser (OSCCRR-1) Mounting Kit fits Osco # CRR-1 risers
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OSCCVCR-MK
$12.95 | Mounting Kit, Manifold for OSCCVCR818 Manifolds Mounting Kit fits Osco # CVCR818 manifolds Replaces: Mallory # 9-40771
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OSCCWCR-MK
$12.95 | Mounting Kit, for OSCCWCR818 Exhaust Manifolds Manifold Mounting Kit. Fits CWCR818 manifold. Includes CW-GH gasket and mounting hardware. |
OSCFL994-MK
$13.50 | Mounting Kit, Manifold, for OSCFL994 Manifolds Mounting Kit fits Osco # FL994 manifolds Replaces: Sierra # 18-8538; Mallory # 9-40172
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OSCFLCR-MK
$12.95 | Mounting Kit, Manifold, for Mercruiser OSCFLCR818 Manifolds Mounting Kit fits Osco # FLCR818 manifolds
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OSCMWF
$14.95 | Rear End Plate for OSCME153-LS, OSCME153-LR Manifolds on Mercruiser Rear End Plate fits Osco # ME153-LS, Osco # ME153-LR Manifolds
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OSCMWS
$31.95 | Front End Plate for Mercruiser 2.5 120HP 1970 to 1982 47638 Front end plate with water fitting for Mercruiser 120HP engines produced from 1970-1982. This bolts on the front of the exhaust manifold and accepts the water from the thermostat housing. Replaces Mercruiser Part Number: 47638 and 47638A1 |
OSCCW994-MK
$12.95 | Mounting Kit, Manifold , for Barr Style GM 454 7.4L, 502 8.2L V8 Manifold Mounting Kit for Osco # CW994 Manifolds Big Block GM V8 with Barr Style Manifolds |
OSC6371-MK
$7.95 | Riser Mounting Kit for Mercruiser OSC6351 Riser Riser Mounting Kit for Mercruiser V8s with log style manifolds, and some inline 6 cylinder, all prior to 1982. It is for riser Osco # 6351 and Osco # 6771. Replaces: Barr # 20-0082-P; Sierra # 18-4362; Mallory # 9-40170
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| OSC8561-MK
$14.95 | Riser Mounting Kit for Mercruiser OSC8561 Risers Mounting Kit fits Osco # 8561 risers on Mercrusier 3.7L Replaces: Sierra # 18-8530; Mallory 9-40581 |
OSC0879-MK
$10.95 | Riser Mounting Kit for Mercruiser 90880A 2 Cast Iron Manifolds Riser Mounting Kit fits Mercruiser # 90880A 2; Barr # MC-20-90880; Osco # 0879; GLM # 51170; Mallory # 9-40550 risers. Replaces: Sierra # 18-8500; Mallory # 9-40577 |
