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Amazon.com: Distributor Cap, 4 Cylinder Tractor Distributor Cap and Ignition Rotor 9N12106C Replacement for Ford 2N 8N 9N : Automotive
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Amazon.com: 10452457 10452458 DR475 Distributor Cap and Rotor Compatible with Chevy Blazer S10 GMC Cadillac 4.3L, 6 Cylinder Vortech D328A, 8104524580, 8104773110, 8104935770 : Automotive
![This plastic piece under the distributor cap is broken, is it necessary? - CorvetteForum - Chevrolet Corvette Forum Discussion This plastic piece under the distributor cap is broken, is it necessary? - CorvetteForum - Chevrolet Corvette Forum Discussion](https://cimg0.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/690x919/distributor_plastic_piece_3_170c283876de634dd15a7550cc32e570bc0c9f06.jpg)