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Description
About the Caterpillar 3408 Engine
The Caterpillar 3408 is an 18.0L V8 diesel built for heavy-duty industrial machinery, marine propulsion, and power generation. It is turbocharged, with 24V electrical, direct injection driven by a mechanical fuel pump, and ratings of about 500 to 800 hp. It is the V8 sibling of the 3412 V12, sharing the 5.40 x 6.00 in bore and stroke. This is a used engine, inspected before it ships, and offered as a Long Block, Extended Long Block, or Complete Engine Assembly.
A note on fitment. The live list does name some genuinely correct 3408 applications (the engine powered machines like the 988 wheel loader, D10 dozer, and 773 truck), but it also garbles other entries by listing Cat engine-series names as if they were vessels or applications (for example ‘3300 Series Tugboats’, ‘3512 Generator Sets’, and ‘3516 Industrial Engines’) and naming machines that use bigger engines (the 789 and 994 use the 3516). The garbled list was not reproduced; confirm the application by the engine’s arrangement/serial number.
What To Confirm
| Item | Details |
|---|---|
| Identity | Arrangement and serial number. |
| Rating | The exact hp rating. |
| Config | Long block or complete. |
Things to Confirm Before Ordering
The engine’s arrangement and serial number
The exact hp rating for your use
The configuration (long block, extended long block, or complete)
Freight delivery and rigging at your site
What Is Included, What Is Not Included
| Item | Details |
|---|---|
| INCLUDED | The used Cat 3408 in the configuration confirmed (long block, extended long block, or complete). |
| NOT INCLUDED | Marine gear, genset end, controls, and accessories unless confirmed at order. |
| Tools You Need | A commercial / heavy-equipment installer; freight handling and rigging at delivery. |
Vehicle Compatibility
This Cat 3408 is a commercial engine; fitment is confirmed by arrangement/serial number:
| Vehicle | Compatibility |
|---|---|
| Use | Industrial, marine, and power generation |
| Representative machines | 988 loader, D10 dozer, 773 truck (genuine 3408 applications) |
| Fitment | Confirmed by arrangement/serial number |
The 3408 powered machines such as the 988 wheel loader, D10 dozer, and 773 truck, plus marine and genset use. The live list garbled other entries (listing Cat engine-series names as vessels or applications, and machines that use bigger engines), so those were not reproduced. Confirm the application by the engine’s arrangement/serial number. We disclose the donor details before shipping.
Fitment Assistance
Not sure the 3408 matches your application? Call (240) 301-0095 with the engine’s arrangement/serial number and your application. Our team confirms it before your order ships.
Condition and Inspection
Quality control for this part includes:
Arrangement and serial number documented
Rating and configuration identified
Block, heads, turbo, and injection inspected
Donor details disclosed
What is included confirmed with you before shipping
This is a used industrial diesel. We document the arrangement and serial number, identify the rating and configuration, and inspect the major systems. It is a heavy freight item needing commercial-grade installation; fitment is confirmed by arrangement/serial number.
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