2170609 Seat-Valve Spring Fits Caterpillar Models

One New Aftermarket Replacement Seat-Valve Spring for Caterpillar (Cat) C9 Engine Applications

This valve spring seat is a cylinder head valve train component for Caterpillar (Cat) C-9 and C9 engines. It seats and retains the valve spring assembly within the cylinder head, maintaining proper spring tension and valve sealing across a wide range of Cat equipment types powered by the C9 engine family.

Compatible Models

Caterpillar Excavators: 330C L, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 340D L, 340D2 L, M330D

Caterpillar Motor Graders: 140M, 140M 2, 160M, 160M 2

Caterpillar Track Feller Bunchers: 511, 521, 521B, 522, 522B, 532, 541, 541 2, 551, 552, 552 2, 2290, 2390, 2391, 2491, 2590

Caterpillar Track Loaders: 973C, 973D

Caterpillar Track-Type Tractors: D6R, D6R III, D6R STD, D6T, D7R XR

Caterpillar Wheel Dozers: 814F II

Caterpillar Wheel Scrapers: 627G, 637D, 637E, 637G

Caterpillar Soil Compactors: 815F II

Caterpillar Landfill Compactors: 816F II

Caterpillar Site Prep Tractors: 586C

Caterpillar Challengers: MTC735

Caterpillar Generator Sets: C9

Caterpillar Industrial/Truck/Marine/Petroleum Engines: C-9, C9

Caterpillar Petroleum Package: CX31-C9I

Caterpillar Petroleum Transmission: TH31-E61

Caterpillar Mobile Hydraulic Power Units: 330D, 330D L, 336D L

Replaces Part Number(s):

2170609, 217-0609

New aftermarket replacement part - not remanufactured, not used.