This distributor cap and rotor set is perfect for your Blazer S10 with a 4.3L V6 Vortec engine. The set includes interchangeable part numbers DR475 and DR331, as well as OE/OEM part numbers 10452458, 10452457, 10493577, and 10477311. The mounting style is bolt-on and the material is made of both aluminum and phenolic. The color is multicolor with a gloss finish, and it is a non-performance part. Made in China, this vintage part is suitable for your ignition system and is a reliable replacement for your worn out distributor cap and rotor. Exact item set is shown. New without original packaging. Includes the mounting screws shown. Made in China. No returns on installed items or partial sets. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties. Last call on this.