What engine is in a Dodge D150?
The Dodge D150 did not have a single, universal engine; it offered multiple options over its production, most commonly the 225-cubic-inch Slant-Six or various V8s (such as 318 and 360 cubic inches), depending on year and configuration.
This article explains how engine options varied across the D150 lineup and how to identify the exact powerplant in a given truck. It covers typical engine families, less common big-block options, and practical steps to confirm what’s under the hood of your specific vehicle.
Engine options across the D150 timeline
Typical engine families encountered in the D150 were:
- 225-cubic-inch Slant-Six (3.7L) – renowned for reliability and lugging torque, widely used in the D-series trucks.
- 318-cubic-inch V8 (5.2L) – a common small-block option offering a good balance of power and efficiency.
- 360-cubic-inch V8 (5.9L) – popular upgrade for more torque and hauling capability, especially in later years.
Concluding: The 225 Slant-Six and the 318/360 V8s formed the backbone of most D150 configurations, with engine choice largely driven by year, trim, and intended use.
Less common big-block options appeared on select years and trims:
- 383-cubic-inch V8 (6.3L) – a larger displacement option found in higher-trim or heavy-duty setups.
- 400-cubic-inch V8 (6.6L) – a rare big-block upgrade available in certain years, depending on the option package.
Concluding: Big-block choices were not universal; they were occasional upgrades tied to specific configurations or performance-focused packages.
How to identify the engine in your Dodge D150
To determine the exact engine in your specific D150, follow these practical steps:
- Check the VIN and the glovebox/door tag for an engine code; Mopar engine codes are typically stamped on the engine block and correspond to the documented option.
- Look for an engine displacement badge or stamping on the engine itself (e.g., 318, 360, 225) or on the under-hood label if present.
- Consult the original window sticker, build sheet, or dealership paperwork to confirm the installed engine option at purchase.
- If needed, enlist a Mopar-savvy technician or post the VIN along with clear photos on a Dodge/Mopar enthusiast forum for precise decoding.
Concluding: With the correct engine code or documentation, you can verify the exact engine in your D150 and avoid misidentification.
Summary
The Dodge D150 offered a range of engines over its production, with the 225 Slant-Six and the 318/360 V8s serving as the most common powertrains. Rare big-block options such as the 383 and 400 appeared in certain years and configurations. To know the exact engine in a given D150, check the VIN/engine code, hood/valve-cover markings, or original paperwork—the combination of these sources will reveal the precise displacement and configuration.
