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All American Autowire Engine “Factory Fit” engine harnesses are designed to be a plug-and-play replacement for your original factory engine harness. If you’ve got an original factory wiring harness, this is one of the best replacement options on the market. American Autowire uses the same connectors as your original wiring harness, so you don’t have to replace every connection. The harness is also configured just like the factory original, so it’s easy to follow the factory routing and place this harness the same way.
This American Autowire Engine Factory Fit engine harness (15841) are designed to be a plug-and-play replacement for your original factory engine harness. When it comes to the original 1963 Impala, Bel-Air and Biscayne V8 SB hEI factory wiring harnesses, this is one of the best replacement options on the market. American Autowire uses the same connectors as your original wiring harness, so you don’t have to replace every connection.
This American Autowire Engine Harness is an accurate reproduction of an original GM wiring harness. Simply unplug the factory harness, plug this harness in, and you’re good to go. Assembled in the USA, American Autowire harnesses are one of our most popular types of parts.
This part fits the 1963 Impala, Bel-Air and Biscayne V8 SB hEI. This part may also fit other vehicles from the same time period. To verify fitment or to ask a question, feel free to contact us.
Installation is fairly straightforward, but it’s a good idea to use a pen and masking tape to “tag” every connection before you remove the factory harness. Then, you can layout the old harness next to the new one, match up the connections, tag the new harness the same way, and then match up your connections as you go. It takes a little more work to prepare, but it can save you a lot of time and trouble later.
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- Item Requires Shipping
- 2.2 lbs.
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