{"product_id":"1a-auto-ac-delco-r45ts-spark-plug-set-of-8-oe-fit-for-gm-v8-reliable-ignition","title":"1A Auto AC Delco R45TS Spark Plug Set of 8 — OE Fit for GM V8, Reliable Ignition","description":"\u003cp\u003e\u003cstrong\u003eAC Delco R45TS spark plug set of 8 delivers reliable ignition performance and an exact fit for compatible GM V8 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis four-pack set (sold as eight spark plugs) includes AC Delco R45TS plugs engineered to meet original-equipment dimensions and heat range for many Chevrolet, GMC, Buick, Cadillac, Pontiac, and Oldsmobile engines. The plugs are designed for easy replacement, consistent firing characteristics, and long-term durability when installed and gapped to factory specifications. Whether you're doing routine maintenance or rebuilding a classic GM V8, these plugs provide the correct fit and factory-style materials trusted by technicians.\u003c\/p\u003e\n\n\u003ch3\u003eWill these AC Delco R45TS plugs fit my vehicle?\u003c\/h3\u003e\n\u003cp\u003eThese R45TS plugs match OE thread size, reach, and heat range for specific GM engines. Confirm compatibility with your vehicle’s year, make, model, and engine code before purchase to ensure proper fit and clearance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon fitment: many Chevrolet, GMC, Buick, Cadillac, Pontiac, Olds V8 engines\u003c\/li\u003e\n  \u003cli\u003eOE-style thread diameter and reach for specified engines\u003c\/li\u003e\n  \u003cli\u003eSold as a set of 8 — check cylinder count on your engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do AC Delco R45TS plugs affect starting and drivability?\u003c\/h3\u003e\n\u003cp\u003eCorrect, properly gapped plugs support consistent ignition, smoother idling, and reliable starts. Replacing worn plugs with OEM-equivalent R45TS units restores spark efficiency and helps maintain fuel burn consistency across cylinders.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproves spark consistency across cylinders\u003c\/li\u003e\n  \u003cli\u003eRestores factory ignition performance after plug wear\u003c\/li\u003e\n  \u003cli\u003eAids smoother idle and dependable cold starts when gapped properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eInstall using a torque wrench to the factory-specified torque and set the electrode gap per your vehicle’s service manual. Use anti-seize on threads only if recommended by the manufacturer and replace coil boots or spark plug wires at signs of wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSet gap to factory spec before installation\u003c\/li\u003e\n  \u003cli\u003eTighten to OEM torque to avoid damage or poor sealing\u003c\/li\u003e\n  \u003cli\u003eInspect wires\/boots and replace if cracked or oily\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these copper, platinum, or iridium plugs and what does that mean for lifespan?\u003c\/h3\u003e\n\u003cp\u003eAC Delco R45TS are designed to the original equipment specification for the model family they serve; service life depends on the plug material and the engine application. Review the part details and maintenance intervals in your vehicle manual to determine expected replacement frequency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial and life depend on OE design for that engine family\u003c\/li\u003e\n  \u003cli\u003eFollow scheduled interval recommendations in owner’s manual\u003c\/li\u003e\n  \u003cli\u003eReplace sooner if misfiring, rough idle, or fuel economy drops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this set is for: technicians, DIY mechanics, and owners of compatible GM vehicles who want an OE-style replacement spark plug set for tune-ups, restorations, or routine maintenance. Choose the AC Delco R45TS set if you need a direct-fit plug sold in a quantity suitable for 8-cylinder engines and you want parts that match factory fit and function. Always confirm fitment with your vehicle’s VIN, year, and engine code before ordering to ensure correct selection.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many spark plugs are included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This listing is a set of eight AC Delco R45TS spark plugs, suitable for eight-cylinder engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to gap these plugs before installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Verify and set the electrode gap to your vehicle’s factory specification before installation for optimal performance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"1A Auto","offers":[{"title":"Default Title","offer_id":48086282764446,"sku":"B07CJZ71NK","price":46.23,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ac-delco-r45ts-front-packaging.jpg?v=1785893616","url":"https:\/\/northtrailauto.ca\/products\/1a-auto-ac-delco-r45ts-spark-plug-set-of-8-oe-fit-for-gm-v8-reliable-ignition","provider":"North Trail Auto","version":"1.0","type":"link"}