This 8 pc Denso Standard U-Groove Spark Plug kit fits your 1999 Chevrolet Silverado 2500 5.3L 6.0L V8 and is perfect for a tune up or performance upgrade. Search Our store Contact Us 8 pc Denso Standard U-Groove Spark Plugs for 1999 Chevrolet Silverado 2500 bi Status: In Stock Condition: New REDUCE EMISSIONS AND MISFIRES: The patented DENSO Spark Plug enables complete fuel ignition in the combustion chamber. It virtually eliminates erratic starts caused by poor fuel mixtures and excessive fouling. The DENSO Spark Plug employs a unique ground electrode designed to generate a larger spark nucleus at the point of ignition. Greater spark energy means improved flame travel, producing more complete, consistent, and efficient combustionGAIN GREATER FUEL EFFICIENCY: This DENSO Spark Plug fires leaner mixtures than conventional plugs and improves throttle response. Its ground electrode was developed to improve ignitability for increased efficiency in emission gas purification and fuel consumption. The DENSO Spark Plug is 100 percent pre-fired to ensure reliable operation and lasts twice as long as conventional plugs. The unique five-rib insulator reduces flashover and decreases voltage lossRELY ON QUALITY AUTO PARTS: From the development of direct ignition coils to revolutionizing the concept of the aftermarket performance spark plug by using platinum and iridium, DENSO is often on the front lines of product advancementTRUST IN DENSO: The automotive industry has recognized the DENSO commitment to quality through such prestigious awards as the Deming Award for Quality, the J.D. Power and Associates Chairman's Award, and numerous supplier awards for quality from companies like Toyota, Lexus, General Motors, and Chrysler DENSO is one of the largest automotive-component suppliers with more than $40 billion in annual sales. For over 65 years, DENSO parts have been the global choice for top automakers, with hundreds of vehicle models rolling off the assembly line with DENSO auto parts under the hood. Combine that with their commitment to qualityâ€”showcased by their QS9000 and ISO9000-certified factories and easily installed First Time Fit product lineâ€”and you have a clear choice in product reliability and longevity. Confirm Your Vehicle Compatibility Year 25005.3L V8;Gap 0.060;Resistor Plug With Patented U-Groove Design1999ChevroletSilverado 25006.0L V8;Gap 0.060;Resistor Plug With Patented U-Groove Design1999ChevroletSilverado 2500Gap 0.060;Resistor Plug With Patented U-Groove Design To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table. Many of the parts we sell at Sixity Auto only work with specific vehicles. Please double-check the accuracy of your order before purchasing. Check that the reference number, size, and placement are correct. Contact Sixity Auto If you have any questions, you may reach us via our Contact Form. One of our outstanding customer service representatives from our US-based service centers will respond to your questions or response. Shipping Your order will be processed and shipped within one business day. We strive to ship every order promptly. We will email you a tracking number when your order ships. Items will ship via USPS First Class, USPS Priority Mail or FedEx. Some items offer faster shipping for a small fee. Please see the Shipping and payments tab for more details on shipping rates and delivery times. Sorry, no local pickups available. We participate in the global shipping program. Please see the Shipping and payments tab for details on the countries we ship to outside of the U.S. Customer Satisfaction Sixity Auto stands for value, selection, and quality. Our goal is to provide a 5-star shopping experience. We give all our customers positive response. Please work with us by contacting us here if you have a problem, before leaving negative response. Returns If you would like to return your new, unopened, and uninstalled part: From within My , click Purchase History. Find the item you ordered. Below the Leave response button, click [More Actions] > [Return This Item]. Select a reason. The most common reason is Doesn't Fit. Add details like I tried to install this part, and it didn't fit. Click [Request a Return]. Returned parts will be inspected, and a refund given within 5 business days if the part is new, unopened, and uninstalled. Original shipping costs and a restocking fee may be deducted from your refund. If the item has been opened, installed, or used, we are unable to accept a return due to safety concerns. WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov © 2021 Sixity, Inc. All Rights Reserved .