149 Series Model Identification Chart

PC Industries - Supplier of New, Used and Remanufactured Diesel Engines and Spare Parts for Cummins, Detroit Diesel, Perkins and Other Diesel Engines.

Supplying New, Used and Remanufactured Detroit Diesel Engines and Spare Parts for IL53, V53, IL71, V71, V92 and 149 Series 2 Cycle Diesel Engines.

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Series 149 Model Description Chart and Serial Number Location
Application, Rotation and Design Variations

1 2

0 0

Series
149

Number
Of
Cylinders

Application
Designation
(see below)

Basic Engine
Arrangement
(see below)

Design
Variation
(see below)

Specific
Model
Number

Application Designations

9122 - 7000 Marine
9123 - 7000 Industrial Fan thru Flywheel

Design Variations

9122 - 7000 Non-Turbocharged Engine
9122 - 7300 Turbocharged, Intercoolers Optional
9122 - 7400 Turbochargers, Intercoolers, Bypass Blowers
9122 - 7C00 DDEC Engine Controls
9122 - 7K00 DDEC Engine Controls

Basic Engine Arrangements
Rotation: L (left) and R (right) designates rotation as viewed from the front of the engine.
Cylinder Banks: Left and right cylinder banks are determined from the rear of the engine.

ALL VIEWS FROM REAR (FLYWHEEL) END OF ENGINE

The unit serial number and model number of 8V engines are stamped on the rocker cover rail at the left, rear corner of the block (as viewed from the flywheel end). The unit serial number and model number on 12V, 16V and 20V engines are stamped on the rocker cover rail at the right, front corner of the block (as viewed from the flywheel end).

An example of a Series 12V149 serial number is 12EXXXXXXX. The engine serial number is required when placing a parts order.

Model number 9122-7000 is interpreted as follows: Series 149 Engine (9), twelve cylinder (12), marine engine (2), right-hand rotation with "C" accessory arrangement (7), non-turbocharged engine (0), and specific model variation Number 00 (00).

1. Engine Model Number

2. Engine Serial Number