3126B Marine Engine Caterpillar

Refill Capacities

Usage:

Lubrication System

The refill capacities for the engine crankcase reflect the approximate capacity of the crankcase or sump plus standard oil filters. Auxiliary oil filter systems will require additional oil. Refer to the OEM specifications for the capacity of the auxiliary oil filter. Refer to the Operation and Maintenance Manual, "Lubricant Specifications" topic (Maintenance Section) for more information.

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Table 1
3126B Marine Engine Approximate Refill Capacities
Compartment or System	Liters	Quarts
Crankcase Oil Sump (Standard)⁽¹⁾	25	26.4

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⁽¹⁾	These values are the approximate capacities for the crankcase oil sump which include the standard oil filters that are installed at the factory. Engines with auxiliary oil filters will require additional oil. Refer to the OEM specifications for the capacity of the auxiliary oil filter.

Cooling System

In order to maintain the cooling system, the Total Cooling System capacity must be known. The approximate capacity for the Engine Only cooling system is listed. External System capacities will vary among applications. Refer to the OEM specifications for the External System capacity. This capacity information will be needed in order to determine the amount of coolant/antifreeze that is required for the Total Cooling System.

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Table 2
3126B Marine Engine Approximate Refill Capacities
Compartment or System	Liters	US Gallons
Engine Only	39	10.3
External System (OEM)⁽¹⁾
Total Cooling System⁽²⁾

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⁽¹⁾	The External System includes an expansion tank with the following components: heat exchanger and piping. Refer to Caterpillar specifications or refer to OEM specifications. Enter the capacity for the External System in this row.
⁽²⁾	The Total Cooling System is the sum of the capacities of the following two compartments: Engine Only and External System. Enter the total in this row.