We are not affiliated with Sunset Models. Most of the parts sold are new. The production models that sunset models had have been sold through the years so exact locations and part descriptions may be vague. Please look at photos and compare to your model to see if the part is correct . Use the project links to narrow down your search. If you can't find the part you are looking for check the Bone yard for used parts or damaged parts. Once the parts are gone they are gone. there is no plans make any more parts for these models and new product usually don't share the spare parts. Helpful tip the screws might be interchangeable between models look at the thread pitch and length style of head in other products there might be a compatible replacement under a different P/N. I will be pull part orders Tuesdays and Thursdays parts will be shipped the following day. Return policy is 30 days with a 10% restocking fee and customer pays for return shipping.