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MerCruiser Manifolds
GLM Products, Inc.
Exhaust Elbow Gaskets End Caps TOC
Manifolds-Merc.
51030 51020
30240 32080 51010
32080 OEM: 27-860232 Center Riser Open 51010 OEM: 60252A2 181 (1968-82), 305/350 (1977-82)
30240 OEM: 27-860233 Center Riser Restricted 51020 OEM: 805629A1 153/181 (1982-95)
30220 OEM: 27-860231 Center Riser Closed Cooling 51030 OEM: 73813A1 153/181 (1982-95), 181 (1968-82) Manifolds-OMC
32630 OEM: 27-92720 Rear Riser Closed Cooling (1968-82) 224 (1976-82), 305/350 (1977-82)
31520 OEM: 27-99777-2 Rear Riser Open 4/6-Cyl. (1968-82) End Cap Gaskets
(except 120HP), All V8 (1978-82)
31410 OEM: 27-39915 120 (1966-82)
31480 OEM: 27-48042 w/ TRS Drive Chevy 454 V8 (1968-82) Manifolds-Volvo
Chevy 305/327/350 (1968-77)
32460 OEM: 27-856705 Steel Gasket for Merc. Built 4-Cylinder 30920 31420
w/ Aluminum Manifolds 30190 OEM: 27-39917 Front Gasket 153 CID/120 HP (1966-82)
32370 OEM: 27-89657 Paper Gasket for Merc. Built 4-Cylinder For caps w/ water hose connections.
w/ Aluminum Manifolds 31420 OEM: 27-39923 Rear Gasket 153 CID/120 HP (1966-82) Manifolds-Barr
32470 OEM: 27-18272 Merc. Built 4-Cylinder (except 30910 OEM: 27-73812 Rear Gasket 153 CID/120 HP (1966-82)
1976-82 470) w/ Cast Iron Manifolds
For caps w/out water hose connections.
End Cap Screws 31490 OEM: 27-480431 Rear/Front
For caps w/ water hose connections.
22443 OEM: 10-824941 End Cap Screw 30920 OEM: 27-807218 Rear/Front MerCruiser
21756 OEM: 10-37562 End Cap Screw For caps w/ water hose connections.
MANIFOLD APPLICATIONS FOR MERCRUISER
Exhaust Exhaust Exhaust End Cap End Cap Gasket Gasket
Model Year Serial No. Range Merc / Mar / For
Mani.Port Mani.Stbd. Elbow Front Rear Ex.Mani. Ex.Elbow
110 153/L4 1963-66 1537370-2044033 N.L.A. N/A N.L.A. N.L.A. N.L.A. 31550 N.L.A.
120 153/L4 1966-82 2046625-6229717 - N/A - N.L.A. N.L.A. 31550 31410
120 153/L4 1983-86 6229718-0B531853 - N/A - 51010 51020 33570 31520
2.5L 153/L4 1987-89 0B531854-0C853255 - N/A - 51010 51020 33570 31520
140 181/L4 1968-82 2508261-6229717 51212 N/A - 51010 51030 31570 31520 OMC / Volvo
140 181/L4 1982-86 6229718-0B450800 - N/A - 51010 51020 33570 31520
3.0L 181/L4 1987-95 0B450801-0F603999 - N/A - 51010 51020 33570 31520
3.0L 181/L4 1998- 0L010042 & Up 51214 N/A 51160 51030 51020 33580 31520
3.0LX 181/L4 1990-97 0C856559-0K999999 51214 N/A 51160 51030 51020 33580 31520
165 (4-Cyl.) 224/L4 1987-87 0B434941-0B774251 - N/A - N/A N/A 31710 32470
165 (4-Cyl.) 224/L4 1987-87 0B434941-0B774251 - N/A - N/A N/A 31710 32460 Johnson / Evin
170 224/L4 1985-86 6916779-0B434940 - N/A - N/A N/A 31710 32470
170 224/L4 1985-86 6916779-0B434940 - N/A - N/A N/A 31710 32460
180 224/L4 1987-87 0B436391-0B775248 - N/A - N/A N/A 31710 32470
180 224/L4 1987-87 0B436391-0B775248 - N/A - N/A N/A 31710 32460
190 224/L4 1985-86 6916779-0B436390 - N/A - N/A N/A 31710 32470
190 224/L4 1985-86 6916779-0B436390 - N/A - N/A N/A 31710 32460 Yamaha
3.7L 224/L4 1988-89 0B774252 & Up - N/A - N/A N/A 31710 32470
3.7L 224/L4 1988-89 0B774252 & Up - N/A - N/A N/A 31710 32460
3.7LX 224/L4 1988-89 0B775249 & Up - N/A - N/A N/A 31710 32470
3.7LX 224/L4 1988-89 0B775249 & Up - N/A - N/A N/A 31710 32460
470 224/L4 1976-77 4208730-4625579 - N/A - N.L.A. N.L.A. 31710 31520
470 MCM & MIE 224/L4 1977-82 4625580-6218036 - N/A - N.L.A. N.L.A. 31710 31520
470 224/L4 1983-84 6218037-6916778 - N/A - N/A N/A 31710 32460 Index / X-Ref.
485 224/L4 1980-82 5685394-6218036 - N/A - N/A N/A 31710 32370
488 224/L4 1983-84 6170297-6916778 - N/A - N/A N/A 31710 32460
140 (6-Cyl.) 194/L6 1963-63 1538930-1725960 N.L.A. N/A N.L.A. N/A N/A 31440 N.L.A.
150 230/L6 1964-66 1666495-2048046 N.L.A. N/A N.L.A. N/A N/A 31440 N.L.A.
160 250/L6 1967-69 2048022-2770031 N.L.A. N/A N.L.A. N/A N/A 31440 N.L.A.
165 (6-Cyl.) 250/L6 1970-81 2770032-5813433 - N/A - 51010 51030 31440 31520 Warranty
200 (6-Cyl.) 292/L6 1969-69 2453769-2712072 - N/A - N.L.A. 51030 31440 31520
185 (4bbl.) 229/V6 1983-84 6330183-6919655 51220 51220 51110 N/A N/A 32170 30240
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