It's a separate harness - the three bulkhead connectors have a bump in the side to make sure you put them in the right place. The "engine" harness only covers what is connected to two of the three bulkhead connectors. My engine harnesses from Year one have been a perfect fit, so if it doesn't fit, you might have the wrong one. Lay the new one out on top of the old one while it is still in place and make sure everything matches before you hook stuff up, so that you can return it if it's not right. These harnesses come from M&H wiring - look them up on the internet and call their great tech line if you still have problems.
