Cylinder 3 is the middle cylinder on the odd-numbered bank of the Odyssey’s V6 (the 1-3-5 bank).
How cylinder numbering works on the Odyssey’s V6
The Honda Odyssey uses a 3.5-liter V6 from the J-series family. In this engine family, cylinders are divided into two banks with odd numbers on one bank and even numbers on the other. Specifically, cylinders 1, 3 and 5 share one bank, while cylinders 2, 4 and 6 share the opposite bank.
Within each bank, the cylinders are arranged from front to rear in the sequence 1-3-5 on the odd bank and 2-4-6 on the even bank. Therefore cylinder 3 is the middle cylinder on its bank, sandwiched between cylinders 1 and 5.
The following notes summarize the cylinder banks and numbering for the Odyssey’s V6:
- Bank A (odd-numbered): 1, 3, 5
- Bank B (even-numbered): 2, 4, 6
- Front-to-back order on each bank: 1 → 3 → 5 on the odd bank; 2 → 4 → 6 on the even bank
Concluding from this layout, cylinder 3 is the middle cylinder of the 1-3-5 bank. It sits between cylinders 1 and 5 along that bank.
Practical notes
When working on or diagnosing the engine, always refer to the specific model year’s service manual for exact cylinder locations. If you're counting for a spark plug replacement, you can verify by looking at the spark plug positions and the valve cover orientation relative to the timing cover.
For reference, Honda’s typical convention has cylinder numbers increasing along the bank from front to rear, with odd numbers on one bank and even numbers on the other. However, there can be slight variations by year or engine revision, so confirm with a diagram for your Odyssey’s VIN.
Summary
In the Honda Odyssey’s V6, cylinder 3 is the middle cylinder of the odd-numbered bank (cylinders 1-3-5). The two banks are 1-3-5 and 2-4-6, with front-to-back order 1-3-5 and 2-4-6 respectively. Always check the specific service manual for your model year to confirm exact locations.