Mastering the Engine Class (NMFC 120790)
If you are a mechanic, broker, or auto parts reseller, shipping a used car engine is a routine but risky business. The National Motor Freight Classification (NMFC) generally categorizes internal combustion engines under Item 120790. However, the freight class is not static—it depends heavily on your packaging method and the resulting density. In the world of LTL, the difference between Class 70 and Class 85 can increase your shipping costs by 25% or more.
Class 70: Crated Engines
Encasing your engine in a fully-enclosed wooden crate significantly reduces liability for the carrier. Because crates are stackable and protect other freight from oil leaks, most carriers honor Freight Class 70.
Class 85: Palletized
Strapping an engine to a standard pallet without full crating increases the risk of damage to surrounding freight. This typically bumps the classification to Class 85. Our calculator helps you verify if your density pushes this even higher.
Draining Fluids & Managing Gross Weight
Before shipping, it is legally and practically required to drain all oil, coolant, and transmission fluids. Not only does this prevent environmental hazards and "hazardous cleanup" surcharges, but it also reduces the gross weight of the shipment. While a few gallons of oil might seem negligible, in a density-based classification system, every pound matters. A lower gross weight without a corresponding decrease in dimensions can actually increase your freight class if you aren't careful. Use the calculator to find the precise PCF required to hit the Class 70 threshold (typically above 15 PCF).
Step-by-Step Measurement Guide
- Length: Measure from the absolute farthest point (e.g., sticking out pulleys or the tail of the transmission if attached).
- Width: Include any protruding manifolds, brackets, or the edge of the pallet itself (whichever is wider).
- Height: Measure from the floor to the highest point of the engine (often the intake manifold or lifting eyes).
Ready to find your exact density?
Use our free calculator to determine your exact Pounds per Cubic Foot (PCF) before you book your freight.
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