For the majority of Honda CR-V models, the oil drain plug uses a 17mm socket to loosen and a thread size of M14 x 1.5. This combination covers the common engines found in many CR-Vs, but exact sizes can vary by year and market, so always verify with the manual for your specific vehicle.
The term "size" can refer to two distinct specifications: the tool size needed to loosen the plug (the hex head) and the plug’s thread size (the bolt that screws into the oil pan). Knowing both helps you service the pan correctly and replace the plug if needed.
Common sizes and how to verify
Below are the two most relevant measurements you’ll encounter on a typical Honda CR-V oil drain plug. They apply to the majority of models but may not cover every year or engine variant.
- Head size for loosening the drain plug: 17 mm (the hex on the plug).
- Thread size of the drain plug: M14 x 1.5 (the thread that screws into the oil pan).
If your plug looks different or the 17 mm socket doesn’t fit, verify against your specific model year and engine code in the service manual or by inspecting the actual plug and pan threads. Avoid forcing a wrong size, which can damage the plug or pan.
Variation by generation
Honda has used several different engines in the CR-V across generations and markets. While the 17 mm / M14 x 1.5 pairing is the standard for most 2.0–2.4L CR-V engines from the late 1990s onward, there are exceptions depending on year, market, and aftermarket parts. If you own a rare export variant or a very early CR-V, check the exact part number on the plug or consult the official service manual for your year.
How to confirm for your specific vehicle
To be sure you’re using the correct plug, you can:
- Check the owner’s manual or the service manual for the exact drain plug specification.
- Inspect the current plug for its head size and thread: measure across flats with a caliper or use a thread gauge to confirm pitch and diameter.
- Ask a dealer or look up the exact replacement part number for your VIN and engine code.
Once identified, use the correct replacement plug and washers, and re-torque to your manufacturer’s specification when reinstalling.
Summary
For most Honda CR-Vs, the oil drain plug uses a 17 mm socket for removal and a M14 x 1.5 thread. Always verify with the specific model year and engine code, as there can be variations. Consult the service manual or a dealership if you’re unsure to avoid cross-threading or oil leaks.