1753617 Insert-Seat Inlet Fits Caterpillar Models
1753617 Insert-Seat Inlet Fits Caterpillar Models
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One New Aftermarket Replacement Intake Valve Seat Insert for Caterpillar (Cat) Engines
This intake valve seat insert (insert-seat inlet) fits the cylinder head of Caterpillar 3406E, C15, C16, C18, and 3456 diesel engines. It provides the precision-machined seating surface against which the intake valve closes, maintaining proper combustion chamber sealing and engine performance. This part is used across a wide range of Caterpillar construction, earthmoving, and off-highway equipment powered by these engine families.
Compatible Caterpillar Engine Families
- 3406E
- C15 / C15 ACERT
- C16
- C18
- 3456
Compatible Caterpillar Equipment Models
Caterpillar Excavators: 365C, 365C L, 365C L MH, 385B, 385C, 385C FS, 385C L, 385C L MH, 5090B
Caterpillar Scrapers / Off-Highway Trucks: 621G, 623G, 627F, 627G, 631G, 637G, 651B, 657B, 657E, 657G, 735, 740, 770, 772
Caterpillar Compactors / Motor Graders / Other: 583T, 587T, 824C, 824G II, 824H, 825G II, 825H
Replaces Part Number(s):
1753617, 175-3617
Aftermarket Interchange Numbers
PAI 391891, Interstate-McBee M-1753617, 30-1891E-1, SB1891E-1, 156-4168
New aftermarket replacement part - not remanufactured, not used.
