CAT 149-5403 Cylinder Block | Caterpillar 3116 Engine Rebuild Parts

149-5403 Cylinder Block for Caterpillar 3116 Engines

OEM-grade heavy-duty cylinder block (Part No. 149-5403 / 1495403) engineered specifically for Caterpillar 3116 (Inline 6-cylinder, 6.6L) diesel engine overhauls. Cast from high-tensile alloy gray iron with precision-machined main bearing saddles, camshaft bores, deck surface, and cylinder parent bores to meet strict Caterpillar engineering specifications. Delivers structural rigidity, superior thermal dissipation, and extended fatigue life under extreme heavy-machinery load cycles.

Part Specifications

• Part Number: 149-5403 (1495403)
• Brand: Caterpillar (CAT)
• Engine Model: Caterpillar 3116 / 3116 DITA / 3116TA (6.6L I-6)
• Component: Engine Cylinder Block / Bare Engine Block
• Material: High-Grade Cast Iron / Alloy Gray Iron
• Condition: Brand New / OEM Replacement
• Country of Origin: China
• HS Code: 8409.99
• Application: Heavy Earthmoving, Excavators, Wheel Loaders, Marine & Industrial Power Units

Compatible Caterpillar Equipment Models

Engineered for machinery and industrial packages powered by the Caterpillar 3116 engine platform, including:

• Hydraulic Excavators: 320, 320L, 320LN, 322, 322L, 322LN, 325, 325L, 325LN
• Wheel Loaders & Integrated Toolcarriers: 950F, 950F Series II, 960F, IT28F, IT38F
• Track-Type Tractors / Crawlers: D5M, D6M
• Paving Compactors: CP-563, CS-563, CS-583, PS-500
• Motor Graders: 120H, 135H
• Marine Propulsion & Auxiliary Gensets: 3116 Marine Propulsion, Industrial Power Units
• Please verify engine serial number prefix (e.g. 4TF, 5EN, 98Z, 2FR) and arrangement number before ordering.

Cross-Reference & Alternate Part Numbers

149-5403 | 1495403 | 119-2900 | 1192900 | 107-7740 | 1077740 | 7C-3382 | 7C3382 | CAT1495403

Why Choose Us?

• Global B2B wholesale supply for engine rebuilder workshops, fleet contractors, and equipment distributors
• Competitive volume pricing and bulk container freight discounts
• 100% factory dimensional inspection and pressure testing
• Reliable worldwide air express and ocean container freight dispatch

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