8L8227 Seal A for Caterpillar

8L8227 is a mechanical seal for water pump assemblies installed on Caterpillar gas engines, generator set engines, industrial engines and marine engines. This is a new aftermarket mechanical seal manufactured by CTP (Costex Tractor Parts).

The part is listed for Caterpillar equipment with G3412, G398, G399, 3412, 3412C, 3412E, D346, D348, D349, D379B, D398, D398B, D399 and D399 engine designations, according to the specified application data.

Fitment

• Caterpillar gas engines: G3412, G398, G399.
• Caterpillar generator set engines: 3412, 3412C, D379B, D398B, D399.
• Caterpillar industrial engines: 3412, 3412E, D346, D348, D349, D398, D399.
• Caterpillar marine engines: D346, D348, D349, D399.

For gas engine applications, the listed engine designations are G3412, G398 and G399. For generator set engine applications, the listed designations are 3412, 3412C, D379B, D398B and D399. These applications identify the engine series for which the 8L8227 seal is specified.

For industrial engine applications, the part is listed for 3412, 3412E, D346, D348, D349, D398 and D399 engines. For marine engine applications, the listed designations are D346, D348, D349 and D399. The same engine designation can occur in more than one equipment category, so the engine type and machine documentation should be checked when confirming application.

The listed fitment data identifies Caterpillar engine families and does not provide individual machine serial-number ranges. Compatibility should therefore be confirmed against the engine model and the existing part identification before installation.

Specifications

The available specifications identify the overall recorded dimensions and weight of the 8L8227 seal. No additional information is provided for seal material, shaft diameter, housing diameter, mounting method, thread type or included components.