2634920 Sleeve-Inj (Inlet) Fits Caterpillar Models

One New Aftermarket Replacement Injector Sleeve (Inlet) for Caterpillar (Cat) Diesel Engines

This aftermarket replacement injector sleeve (inlet) fits Caterpillar C-series and 3400-series heavy-duty diesel engines used in construction equipment, articulated trucks, motor graders, and on-highway applications. The injector sleeve serves as a collecting chamber for fuel within the fuel injection system, allowing increased fuel flow around the injector and reducing the risk of sleeve pitting caused by air introduced through leaks or turbulence. The sleeve seals the interface between the fuel injector and the cylinder head, helping prevent combustion gas and coolant contamination. Constructed from stainless steel for heat and corrosion resistance, this part is suited for engine overhaul and scheduled maintenance on Cat engines.

Specifications

• Material: Stainless steel
• Emissions control rated
• Weight: approx. 0.18 lbs.
• Sold individually -- verify quantity needed per engine (typically 6 per engine)

Compatible Caterpillar (Cat) Engines and Equipment

Cat C-Series Engines: C9, C10, C11, C12, C13, C15, C16, C-18

Cat 3400-Series Engines: 3406E, 3456

Cat Excavators: 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 365C, 365C L, 365C L MH, 374D L, 374F L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L

Cat Motor Graders: 14M, 16M, 24M

Cat Articulated Trucks: 725, 730, 735, 740, 770, 770G, 772, 772G, 773F, 773G, 775F, 775G, D350E II, D400E II, MT835

Note: Injector sleeves are application-specific. Verify compatibility against your engine serial number and part number before ordering.

Replaces Part Number(s):

2634920, 263-4920

Aftermarket Interchange Numbers

166-3739, 1663739, 227-4239, 2274239, CH12582

New aftermarket replacement part - not remanufactured, not used.