1386256 Seal Kit Fits Caterpillar Models
1386256 Seal Kit Fits Caterpillar Models
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One New Aftermarket Replacement Seal Kit for Caterpillar (Cat) 3412E Engine - Unit Injector Hydraulic Pump (HEUI)
This aftermarket replacement seal kit contains gasket and O-ring seals for the Unit Injector Hydraulic Pump (HEUI) on Caterpillar (Cat) 3412E and related 3408/3412 series engines. The HEUI pump drives the high-pressure oil system that actuates the unit fuel injectors, and maintaining leak-free seals is critical to proper fuel injection and engine performance. This kit consolidates the necessary replacement seals into a single convenient package for efficient pump service and overhaul.
Kit Contents
- Replacement gasket and O-ring seals for the Unit Injector Hydraulic Pump (HEUI)
Compatible Models
Caterpillar (Cat) 3400 Series Engines: 3412E (Marine, Serial 9KS00001-UP); also referenced for use with 3408/3412 series HEUI pump assemblies (part of pump groups 201-4202, 225-0567, 235-2026). Verify your specific engine serial number and pump group number before ordering to confirm compatibility with your HEUI pump variant.
Replaces Part Number(s):
1386256, 138-6256
New aftermarket replacement part - not remanufactured, not used.
