Replacement Mazda RX7 parts are available from CarParts.com, JC Whitney, Black Dragon Automotive, eBay and Auto Parts Warehouse. Most parts listed on eBay are sold by third parties so there are used and remanufactured replacement parts available in addition to new.
Black Dragon Automotive specializes in parts for older Mazda RX7s from the years 1979 to 1985. Ordering online from Black Dragon Automotive consists of finding parts numbers in a scanned edition of its print catalog and entering the parts numbers manually to add to the cart. JC Whitney has a more modern website with an online chat feature and a price match policy matching any online competitor's pricing.