This Part has options, please click the button below to order.
542-834051020 3-1/2" x 21-9/16" MerCruiser Heat Exchanger
W04 21-9/16" long x 3-1/2" Dia
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This Part has options, please click the button below to order.
542-834051080 3-1/4" x 29-3/16" MerCruiser Heat Exchanger
W06 29-3/16" long x 3-1/2" Dia.
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This Part has options, please click the button below to order.
542-834051030 3-1/4" x 33-1/2" MerCruiser Heat Exchanger
EH 700 33-1/2" Long x 3-1/4" Dia.
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This Part has options, please click the button below to order.
525-863903A01 MerCruiser Heat Exchanger 863903A01
MerCruiser Heat Exchanger 4” dia. Fits late model MerCruiser Chevy 496 Engine. Replaces Mercruiser OEM part #863903T
Supercedes: 861945T, 863903T
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546-A4683-4222 Replacement Heat Exchanger, Mercruiser (#18390T). 4 inch diameter shell. 21 1/4 inch overall length. Fits GM 8.2L.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A4828-4196 Replacement Heat Exchanger, Mercruiser (#805136T). Fits Mercruiser / GM big block models with center discharge exhaust. Mounts at the front of the engine. 4 inch tank diameter, 25-1/2 inches overall length.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A4884-3091 Replacement Heat Exchanger, Mercruiser (#805174T). 12-3/4 inch overall length.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A5056-4186 Replacement Heat Exchanger, Mercrusier (#807400A1). 20 inch overall length. Fits late model big block. Front mount.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A5181-9600 Replacement Heat Exchanger, Mercruiser (#849115). 15-1/4 inch overall length. Fits Mercruiser 1075 SCI engine.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A5197-4156 Replacement Heat Exchanger, Mercruiser (#860234A1). 4 inch diameter shell. 17 1/2 inch overall length. Fits GM Small Block 4.3L, 5.0L, 5.7L and 6.2L engines.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A5282-4156 Replacement Heat Exchanger, Mercruiser (#863709P). 17-1/2″ overall length. Fits 350 Mag MPI Alpha/Bravo, 6.2L MPI Alpha/Bravo, 5.0L MPI Alpha/Bravo and 4.3L MPI Alpha/Bravo engines.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-A5300-9900 Replacement Heat Exchanger, Mercruiser (#863903A01). 22 inch overall length. Fits 496 Mag base and H.O. engines.
Note: Please be aware that the lead time for this product typically ranges from 3 days to 3 weeks, depending on current stock levels and production schedules.
For a more accurate shipping lead time, please contact us directly before placing your order. We’re happy to provide up-to-date lead time information and answer any questions you may have.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-44446A2 Replacement Heat Exchanger, Mercruiser (#44446A2). This is a direct replacement part. Fits Mercruiser GM big blocks. Mounts at the rear of the engine over the transmission. Used with center discharge exhaust. 5 inch tank diameter, 21 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-61084 Replacement Heat Exchanger, Mercruiser (#61084). This is a direct replacement part. Fits Mercruiser models requiring the cooling capacity of a 5 inch tank. 5 inch tank diameter, 19-1/2 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-61086A7 Replacement Heat Exchanger, Mercruiser (#61086A7). Fits Mercruiser cast iron block, inline four and six cylinder models. 4 inch tank diameter, 18 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-62472A3 Replacement Heat Exchanger, Mercruiser (#62472A3). This is a direct replacement part. Fits Mercruiser / Ford small block models, mounting at the front of the engine. 4 inch tank diameter, 19-1/2 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-63107A2 Replacement Heat Exchanger, Mercruiser (#63107A2). This is a direct replacement part. Fits Mercruiser early model (1968-1983) GM big blocks with log style exhaust. Mounts at the front of the engine. 5 inch tank diameter, 22 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-72114 Replacement Heat Exchanger, Mercruiser (#72114). This is a direct replacement part. Fits Mercruiser / Ford small block models, mounting at the front of the engine. 5 inch tank diameter, 19-1/2 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-74643A1 Replacement Heat Exchanger, Mercruiser (#74643A1). This is a direct replacement part. Fits Mercruiser early models. 4 inch tank diameter, 18-1/2 inches overall length.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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546-MPC-77319A1 Replacement Heat Exchanger, Mercruiser (#77319A1). Fits 3.7L 224 c.i. 170, 470 engine.
Note: To provide a new replacement, the old core (including mounting brackets in some cases) must be sent to Monitor Products.
Note: Due to the requirement of providing a core, The manufacturer will provide a shipping label upon purchasing this product and will cover the cost of the core shipment.
Note: Allow for a 2-3 week lead time for order to process upon receiving core.
Note: The part you are purchasing is not an exact OEM (Original Equipment Manufacturer) part. Instead, it is a high-quality aftermarket part that is designed to meet or exceed the specifications of the original component.
Note: The part you are purchasing has been primer-coated to protect it during handling and shipping. Please note that primer colors may vary, including shades of gray, black, translucent, or yellow. This part has not been finish-painted and it is recommended to paint a final coat prior to installation or use, as appropriate for your application.
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