), laser welded tip. Let’s talk about Bosch vs NGK vs Denso spark plugs. 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology. TT or Twin-Tip technology promotes spark energy concentration and explosion, which translates into improved acceleration and economy. 1. I wouldn't be surprised if these are knock offs...however I have no proof of that nor can I evaluate that. If you swap the stock iridium NGK plugs with Denso spark plugs, you might notice no difference in engine performance, especially if the manufacturer recommends both brands. First used with OE spark plugs for luxury and performance cars, they are the smallest mass-produced center electrodes available. This plug from NKG, quite like the one we discussed above, also uses an innovative design to try to supply the performance of iridium-constructed models at a cheaper price. True, there is nothing particularly innovative about this plug. Well done, DENSO. My 2012 Scion XB had a engine code for misfire cylinder 1, replaced the individual coils and the spark plug. First used with OE spark plugs for luxury and performance cars, they are the smallest mass-produced center electrodes … However, it is also a nicely put together plug with built in anti corrosion resistance. 100% pre-fired to assure the highest quality possible. One of the main benefits of using iridium in spark plugs is its extremely high melting point at nearly 2500 degrees Celsius. Say hello to the second most expensive product on this list. DENSO has started to sell IRIDIUM TT spark plugs having a φ0.4 mm iridium alloy center electrode and a 0.7 mm needle-type platinum alloy ground electrode. The cylinder head is flooded with a mixture of air and fuel (gasoline) that the spark plug ignites. See More Reviews. Denso (3381) K20HR-U11 Traditional Spark Plug ... Review this product. Plus, it’s not like these things rot – if you don’t use them all, just tuck them away for the future. I've been burned on 'snake oil' plugs before (yes, I bought Splitfires way back when, and see my other reviews about the Bosch +4 plugs), so I guess I'm a glutton for punishment. From the most expensive product on the list to the cheapest – but please don’t write it off and scroll straight past! Mazda 6 2003, Iridium TT™ Spark Plug by Denso®. They also have a nice, thin 0.6mm electrode, again aimed at increasing engine power and performance. 3 stars. Pioneering Performance. I referred to a different plug as the most expensive, because I saw the price and assumed no spark plug could possibly cost more. This plug delivers incredible firing potential for faster flame growth and reduced heat loss. Platinum spark plugs are certainly more durable than copper spark plugs. Maybe I received a bad set, who knows. If you can find an authentic seller of authentic Bosch Double Iridium Spark Plugs, this could be an alternative to the Denso and NGK spark plugs reviewed here. Look out for these signs that your plugs are on the way out, and change them nice and early: Difficulty Starting the Engine – The biggest give way that the plugs are tired out is if the car struggles to start, especially in the morning. Free shipping. Toyota Tundra 2010, Iridium TT™ Spark Plug by Denso®. What Denso Iridium Plugs Are Available in the US? This center electrode is, at the time of this writing, the smallest in the world! PLUGS ARE PRE-GAPPED AND COME WITH A HEAVY PLASTIC TUBE COVERING THE ELECTRODE TO PROTECT THE FACTORY SET GAP. As we mentioned up top, these deceptively simple products are in fact very important to the smooth running of your engine, and when they start to fail can reduce fuel efficiency by up to 30%. Reviewed in the United States on March 30, 2016. Well Denso don’t disappoint. That thinness of the electrode will lower the power needs without affecting performance, leading to fast engine starts and improved efficiency. How do you know which plugs are the best for your engine set up? 32 product ratings. $25.81. You don’t want to wait until the plugs are completely worn out however as that will affect engine performance and fuel efficiency – costing you way more money than what a new set of plugs will set you back. VERIFIED FIT FOR: 1999 PLYMOUTH BREEZE 2.4L ESPESSO TRIM 189,000 O.D. Car Bibles is reader-supported. I love them. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. This means if durability is a quality that you’re looking for the most, then you won’t get it from platinum spark plugs. Find Denso Products 4702 Denso Iridium TT Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! Went with OEM for 2006 Acura MDX. Easy to Install – No Adjustments Required, Relatively Expensive (not that expensive though). That helps to extract every ounce of power from your engine. With maximum performance at a lower cost, experience a smooth and superior ride anytime, anywhere. Rough Idling – We all know what a car’s engine should sound like when it idles, right? Then I saw this product, our second entry from Bosch. Spark plugs…name an aftermarket part that has led to as much discussion as these fellas. Time will tell on reviews. 4 stars. Most recent. After all, the Honda is now old, and manufacturers often (or rather, never) update their recommendations after a vehicle model is out of production. Ford Mustang 1996, Iridium TT™ Spark Plug by Denso®. DENSO’s patented Nickel TT Spark Plugs feature a nickel centre and a ‘twin’ protruding ground electrode with a slimmer 1.5mm diameter; Highly ignitable technology achieves ignition efficiency closer to DENSO’s premium Iridium ranges, in a design that does not require expensive precious metals Hopefully good for another 100,000 miles. But look at it as a long-term investment, divide the price by the years of service you’ll get, and this plug basically buys itself. My 2006 Toyota Avalon has the Denso Iridium as OEM SP the car has 105000 miles and still working well a slight drop in MPG around town 19-20 vs 17-18 but can't compliant since its 10 yrs old and 105 k miles. 10,95 € ITV16TT . Well you are right, Denso’s Iridium TT Spark Plugs work awesome in that environment. ! This is important, as if the plug is operating in an environment that is too cool, the combustion in the cylinder head won’t be as efficient as it could be. The Denso spark plug (Iridium) can minimize heat loss, and the smaller electrode diameter can improve ignitability. Car is running smooth. The popping out incidents involving some Denso spark plugs were really isolated, and it was just probably caused by a glitch in installation. 4 - DENSO Spark Plugs 4701 / IK16TT Iridium TT. It is more than 3 times the price of some of the other plugs here so you better be getting a heck of a good plug for that outlay, right? Would you like to peek behind the curtain of the writing process? But DENSO’s Iridium TT’s two needle-thin electrodes (with the center electrode 0.2mm smaller than the nearest rival) act as thinner ‘fingers’, allowing the spark … Reviewed in the United States on November 15, 2017. Spark plugs can be designed to have different temperature tips – cold plugs have colder tips and hot plugs have even colder tips. Misfires – Poorly plugs won’t help the cylinder fire properly, leading to – you guessed it – misfires. We’ll start with one … So no spark plugs, no engine. If you're searching for automotive parts that are OE-grade or better, go with Denso products, which are built to deliver superior performance each day. The electrode itself has a width of 11mm which is a little thicker than you will find on truly premium plugs however it’s not going to have a noticeable effect on performance in a normal car in regular driving conditions. The design of the Denso Iridium TT plug means that less voltage is required to create the spark and less energy to make the connection between electrodes. Second comes from the materials – Iridium electrode and an Iridium cap. Installed in my 2000 Sienna. Bosch 4417 Platinum+4 FGR7DQP Spark Plug (Single), 6 Denso® - Introducing The New Iridium TT Spark Plug Denso® - Automotive Catalog Denso® - Spark Plugs Specifications Denso® - Iridium TT Spark Plug Features Denso Authorized Dealer $5.45 In Stock (1724) - Ships in 24 to 48 hrs Shop Denso Iridium Spark Plugs at 2Wheel. Worn – If the plug electrode looks worn, i.e. Denso 234-9001 Air Fuel Ratio Sensor $120.78 Bafx Products Wireless Bluetooth Obd2 Scanner Diagnostic Code Reader & Scan Tool for Android Devices Only - … Reviewed in the United States on January 22, 2020. TT or Twin-Tip technology promotes spark energy concentration and explosion, which translates into improved acceleration and economy. Iridium and platinum technologies combine with Denso’s 360-degree laser welding process in Denso Twin-Tip Iridium to create a plug with a lifetime over 100,000 miles. $29.44. I've been strictly a Denso user for many yrs. Selecting a Denso spark plug may be mystifying. Platinum constructed plugs are not a million away in terms of quality and life span, and this model from DENSO is one of the better options on the market right now. To put it simply – It’s not going to perform miracles, but it’s not going to let you down either. But if you really care about exacting the maximum power and performance from your engine they could be an excellent investment. 2020.3.25 "Find Your Plugs" is updated. = THE PARTS YOUR NEW CAR WERE BUILT WITH). But we’re only talking about untouched, bone stock vehicles. 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology. This is a case of opposites attracting. Good quality 89% agree. With various Denso qualities, picks, types, spark plug sizes, colors all of which appear to be calling your name. That name on the carton is your first guarantee of quality. $13.94. Denso Iridium TT spark plugs, with their unique Twin-Tip technology, have two "tips": a 0.4mm iridium center electrode, and a 0.7mm platinum ground electrode. Reviewed in the United States on July 15, 2016. They are well worth saving too, as they are a decent all round plug. It also analyzes reviews to verify trustworthiness. DENSO 4504 PK20TT Platinum TT Spark Plug, 4 No more absurd timing pull under WOT I was debating between the Denso's and the NGK's. Instead, they use Glow Plugs. DENSO IRIDIUM TT SPARK PLUGS. Disabling it will result in some disabled or missing features. 2019.2.22 "Find Your Plugs" is updated. Denso TT Spark Plug K16TT. *Diesel engines are a little different, and don’t use spark plugs. Introducing the Iridium TT Spark Plug - featuring, at 0.4mm, the worlds smallest diameter centre electrode and a 0.7mm ground electrode. $45.74. Gap wasn't consistent across plugs (bought 4). These spark plugs are ideal for most cars that we … Bosch 4417 Platinum+4 FGR7DQP Spark Plug (Single), NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Autolite APP104 Double Platinum Spark Plug, Please use only a-z,A-Z,0-9,dash and underscores, I confirm I wish to sign up to the mailing list, 2 That this plug utilizes so much iridium explains both the cost and the incredible high performance. ... for the Toyota engineer who decided you have to take apart the entire air intake system on the Rav4 just to change the spark plugs. Denso Iridium TT spark plugs, with their unique Twin-Tip technology, have two "tips": a 0.4mm iridium center electrode, and a 0.7mm platinum ground electrode. Well this seems as good a place as any to start – how do Spark Plugs work? thinner or more brittle than a new plug, it’s time to replace it. The quenching effect has been decreased by forming the electrode into a double needle shape. You can still see all customer reviews for the product. 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