About MerCruiser Closed Cooling Kits

SAN JUAN Freshwater Cooling Systems (MerCruiser Applications)

Engine

Part #

Kit Description

Price

3.0L CHEV 120/140

MC301

1968-Present, Remote Mount, Cools Block Only. When Replacing Old Unit Specify Fresh Water Hose Sizes 1 ½“ to 1 ¼“, OR 1 ¼“ to 1 ¾”.

$547.95

3.0L LX CHEV

MC327

1997-1999, Side Mount, V-Belt, Cools Block Only.

$547.95

3.0L LX CHEV

MC333

2000-2004, Side Mount, Cools Block Only, Serpentine Belt.

$547.95

3.0L LX CHEV

MC342

2005-2007, Side Mount, Cools Block Only, Serpentine & V-Belt.

$547.95

170 HP

MC312

“470” 4-Cylinder, Aluminum Block, 4” Diameter. Heat Exchanger ONLY.

$344.95

170 HP

MC316

“470” 4-Cylinder, Aluminum Block, 3” Diameter. Heat Exchanger ONLY.

$261.95

4.3L/5.0L/5.7L CHEV

MC328OE

1982 & Up, Remote Mount, Stringer or Deck Mount, Cools Block Only. For Tight Installations with Limited Space.

$676.95

4.3L/5.0L/5.7L CHEV

MC302

1985-1995, Cools Block Only. Forward End of Engine Box Cannot be Tapered as the Heat Exchanger is the Same Height as the Air Filter Extending Out Forward to the V-Belts.

$738.95

4.3L/5.0L/5.7L CHEV

MC303

1994-1995, Cools Block & Manifolds. Must be Bravo with Sea Water Pump on Engine.

$895.95

4.3L/5.0L/5.7L CHEV

MC313

1994-1996 Alpha & Bravo. Cools Block Only. V-Belt Application. Will Not Fit 1990-1991 as Head Does Not Have Threaded Bolt-Holes for Brackets.

$670.95

4.3L/5.0L/5.7L CHEV

MC314

1994-1996 Alpha & Bravo, Cools Block & Manifolds. V-Belt Application. Will Fit 1985-1990 if engine has Port-Side Power Steering Pump. Can be Used on 1990-1993 (also on 1995 & 1996 EFI). Will not fit if Fuel Filter is Mounted High on Engine Head.  It Must be Bracketed off from the Manifold Down Low. Will Fit Inboards. NO V-DRIVES. In Some Cases, a Separate Pump may be Required w/ Alpha Drive 5.7L.

$875.95

4.3L LXH CHEV

MC319

1996-1999 GEN+ One Piece Manifold ONLY w/ Serpentine Belt. Cools Block Only. Will NOT Fit EFI Applications. For EFI, use MC320 Kit. Will Not Fit if Vapor Separator on Starboard Engine Head.

$670.95

4.3L/5.0L/5.7L CHEV

MC322
(see notes at bottom)

1997-1999 GEN+ Two Piece Manifold ONLY w/ Serpentine Belt. Cools Block & Manifolds. 4.3L Carbureted Only: Raw Water Hose Must be Routed Over Valve Cover.

$876.95

4.3L/5.0L/5.7L CHEV

MC320

1997-2001 Cools Block Only. Serpentine Belt Application. Fits Model w/ PORT SIDE ALTERNATOR ONLY. Will Not Fit if Vapor Separator on Starboard Head.
NO Inboards or V-Drives.

$670.95

4.3L/5.0L/5.7L CHEV

MC321
(see notes at bottom)

1997-2001, Cools Block & Manifolds w/ Serpentine Belt. EFI/TBI. NO Inboards or V-Drives. If Magnum Engine Specify & Add $23.50. Fits Model w/ PORT SIDE ALTERNATOR ONLY.  If the 4.3L has a Remote Oil Filter, it MUST be Relocated.

$876.95

5.0L/5.7L CHEV

MC304

1985-1994, Rear Mount, Center Rise Manifolds, Cools Block & Manifolds. Very Difficult to Install in Some I/O Applications if Boat has a Tight Engine Compartment. Will NOT Fit Inboards & V-Drives. Will Fit 1995-1996 MPI: Please Specify when Ordering.

$895.95

5.7L EFI CHEV

MC315

1994-1995, MPI, Alpha & Bravo. Cools Block Only w/ V-Belts.

$708.95

5.7L EFI CHEV

MC317

1996, 350 Magnum MPI GEN+, Cools Block Only w/ V-Belts.

$708.95

4.3L/5.0L/5.7L EFI

MC331

2000-2001, EFI, Cools Block Only w/ Serpentine Belt. On the EFI & Carbureted Engine, the Alternator is Located on the Starboard Side.

$670.95

5.0L/5.7L EFI

MC332
(see notes at bottom)

1997-2001, EFI, Cools Block & Manifolds w/ Serpentine Belt. On EFI & Carbureted Engine the Alternator is Located on the Starboard Side. If the 4.3L Has a Remote Oil Filter, it Must be Relocated.

$875.95

5.7L EFI

MC325

1997-2001, MPI, Cools Block Only. Serpentine Belt Application. Fits Inboards and V-Drives. Specify when ordering. Raw Water “IN” must run up the front of engine.

$708.95

5.7L EFI

MC326
(see notes at bottom)

1997-2001, MPI. Cools Block & Manifolds. Serpentine Belt Application. Will Fit 1999 Magnum & 2000 5.0L EFI Throttle Body.  Fits Inboards & V-Drives. Specify When Ordering. Raw Water “IN” must run up front of engine.

$875.95

4.3L/5.0L/5.7L/6.2L CHEV

MC336

2002-2007, MPI, Magnum, Cools Block Only. Specify if 4.3L when ordering. Specify if Dry-Joint Exhaust. NO Inboards or V-Drives. SPECIFY IF 2005 or ABOVE.

$786.95

4.3L/5.0L/5.7L CHEV

MC337
(see notes at bottom)

2002-2003, MPI, Magnum, Cools Block & Manifolds. NO Dry Joint Exhaust. Cannot be used with 555 ECM. NO Inboards or V-Drives.

$879.95

4.3L/5.0L/5.7L CHEV

MC338

2002 Only, Carbureted. Cools Block Only w/out Dry Joint Exhaust. Raw Water Hose Must be Re-routed over Top of Engine.

$676.95

4.3L/5.0L/5.7L CHEV

MC339
(see notes at bottom)

2002 Only, Carbureted. Cools Block & Manifolds w/out Dry Joint Exhaust. Specify if 4.3L engine. Raw Water Hose Must be Re-routed over Top of Engine.

$878.95

4.3L/5.0L/5.7L CHEV

MC340

2002-2007, Carbureted. Cools Block Only w/ Dry Joint Exhaust. Raw Water Hose Must be Re-routed over Top of Engine. SPECIFY IF 2005 or ABOVE. Specify if Turn-Key Start.

$797.95

4.3L/5.0L/5.7L CHEV

MC341
(see notes at bottom)

2002-2007, Carbureted. Cools Block & Manifolds w/ Dry Joint Exhaust. Specify if 4.3L engine. Raw Water Hose Must be Re-routed over Top of Engine. SPECIFY IF 2005 or ABOVE. Specify if Turn-Key Start.

$999.95

7.4L/8.2L CHEV

MC311
(see notes at bottom)

1993-1997, Bravo, Cools Block & Manifolds. w/ V-Belts. Specify if EFI, MPI, or Magnum, as additional parts are needed for different applications.

$922.95

7.4L LX CHEV

MC323

1997, MPI (Also Fits Carbureted), Cools Block Only w/ V-Belts.

$766.95

7.4L LX CHEV

MC324
(see notes at bottom)

1997, MPI, Cools Block & Manifolds w/ V-Belts.

$922.95

7.4L LX/8.2L CHEV

MC329

1998-2001, MPI, Cools Block Only w/ Serpentine Belt. Specify of Magnum and Add $23.50. If 8.2L (502cid) MPI, other parts are required for installation, add $23.50. Carb & EFI Applications.

$766.95

7.4L LX/8.2L CHEV

MC330
(see notes at bottom)

1998-2001, MPI, Cools Block & Manifolds w/ Serpentine Belt. Specify if Magnum & Add $23.50. If 8.2L (502cid) MPI, other parts are required for installation, add $23.50. Carb & EFI Applications.

$922.95

7.4L/ 8.2L CHEV

MC318
(see notes at bottom)

1996, Inboard ONLY, Magnum EFI Throttle Body, Cools Block & Manifolds w/ V-Belts.

$922.95

7.4L/8.2L CHEV

MC334

1983-1998, Cools Block & Manifolds w/ V-Belts. Rear Mount Kit.  (Instructions are not Specific to This Unit. Uses MC304 Instructions with Similar Application.)

$962.95

7.4L CHEV

MC335

Early 1990’s Models, V-DRIVE ONLY. Cools Block & Manifolds w/ V-Belts. Raw Water Inlet Hose MUST be Routed over Valve Cover. NO MPI or MAGNUMS.

$1,017.95

330/454 CHEV

MC309

Through 1981, Rear Risers, 330 TR Cools Block & Manifolds.

$1,017.95

330/454 CHEV

MC310

1982-1992, Center Risers, Cools Block & Manifolds. Specify with or without Power Steering on engine.

$962.95

165 CHEV

MC307

Inline 6, Cools Block and & Manifold.

$931.95

898/228/260 CHEV

MC305

1970 to 1983, Rear High Rise, Cools Block & Manifolds. If Power Steering Pump is Mounted on the Port Cylinder Head, This Kit CANNOT be Used Unless Power Steering Pump is Relocated.

$895.95

188/233 FORD

MC306

Cools Block & Manifolds.

$895.95

225/228/305/350 CHEV

MC308

Large High Rise, Cools Block & Manifolds. 225 Application: If Power Steering Pump is Mounted on the Port Cylinder Head, This Kit CANNOT be Used Unless Power Steering Pump is Relocated.

$931.95