Replacement Heat Exchanger Tanks - MerCruiser

3-1/2" x 21-9/16" MerCruiser Heat Exchanger

W04 21-9/16" long x 3-1/2" Dia

3-1/4" x 29-3/16" MerCruiser Heat Exchanger

W06 29-3/16" long x 3-1/2" Dia.

3-1/4" x 33-1/2" MerCruiser Heat Exchanger

EH 700 33-1/2" Long x 3-1/4" Dia.

MerCruiser Heat Exchanger 863903A01

MerCruiser Heat Exchanger 4” dia. Fits late model MerCruiser Chevy 496 Engine. Replaces Mercruiser OEM part #863903T

Supercedes: 861945T, 863903T

Mercruiser 5" diameter 454 rear mounted replacement exchanger. This part fits 4 – 6 cylinder. Replaces Mercruiser OEM part #61086.

Mercruiser Heat Exchanger with 4" Lower Tank for Ford 233, 302, 351 cid Small Block V8 with front mount. Replaces Mercruiser OEM part #62472

Mercruiser Heat Exchanger with 5" Lower Tank for GM big block with front mount. 5" x 22-1/2" Shell Replaces Mercruiser OEM part #63107

Mercruiser Heat Exchanger with 4" Lower Tank for Mercruiser GM small block 305 or 350 with front mount. Replaces Mercruiser OEM part #74643 Fits early MerCruiser models.

Mercruiser Heat Exchanger 3" unit for Mercruiser 3.7L 224 cid 4 Cylinder. Replaces Mercruiser OEM part #77319

Mercruiser Heat Exchanger with 4" Lower Tank for Mercruiser GM small block with rear mount 4 inch tank diameter, 18-1/2 inches overall length. For 305, 350 engines. Replaces Mercruiser OEM part #78094

Mercruiser Heat Exchanger for the 470 Mercruiser Inboard 3" Diameter. Replacement for 170, 470 Mercruiser Heat Exchanger same as the, MC316. Replaces Mercruiser OEM part #78165

Mercruiser Heat Exchanger 4" x 21-1/4" Shell GM big block. Mounts at the rear of the engine over the transmission. Replaces Mercruiser OEM part #79607

Mercruiser Heat Exchanger 4” x 25”, 7.4 Litre Front Mount Replaces Mercruiser OEM part #805136T

Make sure to verify this is the correct tank as we’ve found most people think they need the 18390T unit which is 4" x 22". However they normally have it confused with the 805136T.

MerCruiser Heat Exchanger fits the 270 diesel 7.3 litre. Replaces Mercruiser OEM part #806154A

Mercruiser Heat Exchanger 5" x 21-1/4" Shell Rear mount. Replaces Mercruiser OEM part #814864

Mercruiser Heat Exchanger. 1997-1999 .3L D-Tronic Diesel. Replaces Mercruiser OEM part #853259

Mercruiser Heat Exchanger for Mercruiser 4.3L, 5.0L, 5.7L, and 6.2L. Replaces Mercruiser OEM part #860234A1

Mercruiser Heat Exchanger. 5” x 17-1/2” Shell Replaces Mercruiser OEM part #864395T-01

Mercruiser Heat Exchanger 4" x 21-1/4" Shell, for GM small block V8 with Front Mount. Fits MerCruiser MCM V-6 (262 cid) engines with v-belts and Alpha drive (1985-1996 S/N 0A331455 – 0F802999), MCM/MIE V-8 (305 & 350 cid) engines (1983-1996) with v-belts. Replaces Mercruiser OEM part #91036

Mercruiser Heat Exchanger 470-485 4" Diameter Heat Exchanger for Mercruiser 3.7L 4 Cylinder. Replaces Mercruiser OEM part #99438