Description
This Used Caterpillar 3306 Vehicular Engine Parts Manual (January 1975) is your essential parts catalog for restoring, maintaining, or repairing Caterpillar 3306 engines with serial numbers 3N24133 and up. This Caterpillar 3306 Engine Manual delivers detailed exploded views, precise OEM part numbers, and clear assembly diagrams—critical tools for mechanics, fleet operators, and restoration specialists working on legacy diesel engines.
This manual covers key engine systems such as fuel injection assemblies, cylinder heads, crankshafts, seals, gaskets, and mounting brackets. With accurate diagrams and labeled callouts, the Caterpillar 3306 Engine Manual makes identifying the exact components quick and reliable—essential when sourcing hard-to-find parts or ensuring perfect compatibility in rebuilds.
One frequent challenge in heavy-duty engine maintenance is specifying the correct piston kit or injector nozzle. This catalog simplifies the task by matching part numbers to each engine arrangement, helping you avoid costly mistakes in repair and downtime.
Compact yet rugged, this manual is designed for workshop durability—easy to keep nearby on your workbench or shelf. Whether you’re servicing vehicles, diagnosing fuel system issues, or rebuilding an entire motor, the Caterpillar 3306 Engine Manual is the reliable reference that ensures parts accuracy and operational confidence.
INDEX
Central Structure
Camshaft
Connecting Rod & Piston
Crankshaft
Crankshaft Bearings
Crankshaft Seal
Cylinder Block
Cylinder Block Cover
Upper Structure
Cylinder Head
Cylinder Head Cover
Cylinder Head Fastener
Lifting Eye
Valve Mechanism
Valve Mechanism Cover
Front Structure
Belt Tightener
Damper
Fan Drive
Front Gear -Timing
Front Housing
Front Housing Cover
Front Housing Fastener
Pulley
Support
Trunnion
Rear Structure
Flywheel
Flywheel Housing
Power Take-off
Rear Gear – Accessory Drive
Lower Structure
Oil Level Gauge
Oil Pan
Oil Pan Fastener
Lubrication System
Breather
Fumes Disposal
Oil Filler
Oil Filter
Oil Lines
Oil Pump
Cooling System
Engine Oil Cooler
Housing and Regulator
Transmission Oil Cooler
Water Lines
Water Lines – Elbow
Water Lines – Pipe
Water Pump
Intake and Exhaust System
Air Compressor
Air Compressor Lines
Air Lines
Exhaust Manifold
Exhaust Manifold Fastener
Exhaust Pipe
Turbocharger
Turbocharger Oil Lines
Fuel System
Accessory Drive
Engine Decelerator Control
Fuel Filter
Fuel Filter Lines
Fuel Injection Lines
Fuel Priming Pump
Fuel Ratio Control
Fuel Transfer Pump
Governor Cover
Governor and Fuel Injection Pump
Primary Fuel Filter
Tachometer Drive
Electrical System
Alternator
Electric Starting Motor
Glow Plug
Service Equipment and Supplies
Gasket Kits
