Selecting a spark plug with the proper heat range will ensure that the tip will maintain a temperature high enough to prevent fouling, yet be cool enough to prevent pre-ignition. NGK V-Power Spark Plugs UR4. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Aug 27, 2015 #6 mgd1790 Veteran Member. I run R44S in my 69 Z and have no problems. You are using an out of date browser. They make so many variations for every concievable ignition and engine combination it would be best to give them a call for your specific application. Lifetime Gold Member. DPR5EA-9 is the part number and 2887 is the stock number. You must log in or register to reply here. ( 12 ), Spark Plug, Standard Series, Tapered Seat, 14mm Thread, .460 in. Typically the heat range for NGK Spark Plugs varies from 2-11. May 17, 2023 Product linkage to vehicles or equipment from this publication are considered under normal conditions of use, fitted by a professional. store Box 772 Sun City, CA 92586 Toll Free Phone Number: 888-800-9629 Out of U.S. call 951-672-8501 NGK Spark Plugs Manufacturer's Part Number: UR4 Part Type: Spark Plugs Product Line: NGK V-Power Spark Plugs Summit Racing Part Number: NGK-6630 UPC: 087295166307 Spark Plug Thread Size: 14mm Spark Plug Reach (in. Several factors influence the heat range of a spark plug, although typically the insulator nose design provides an indication of the heat range of a spark plug. Typically the heat range for NGK Spark Plugs varies from 2-11. International Customer Options|In the United States? - Dave 1 Quote Sam (Bones) (Non-dues paying) 6.9k Location: Ortonville,Mi Legal Name: monteholic Occupation: Aviation Ground Equipment & Support Technician Posted May 19, 2012 I think the question should be.. Generally, low power engines such as lawn mowers dont produce a large amount of heat, hence use a low heat range (or hot) spark plug such as a 4 heat range. Selecting the Right Heat Range. Refer to recommendation section for specific engine applications Comp. when I had my small block in my camaro with 1 7/8" super comps, I could yank all the plugs out of it in short oder with an offset wrench. I havent used UR5 plugs. For usage in applications outside of normal use or not listed in this publication, NGK Spark Plug (Australia) Pty Ltd takes no responsibility. Re: NGK vs. AC Delco spark plugs. The exception to this is racing plugs. ( 2 ), Spark Plug, Gasket Seat, 14mm Thread, .375 in. Click here to find a Engineered specifically for OE applications.Features: Other Part Numbers: Heat Range: 5 Number Of Ground Electrodes: 1 Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 5000 Ohm Service Number: UR5 Applications for this Product Select a vehicle to see vehicle applications. The XR5 looks more like a R43S than a R43. I've been using NGK lately but on Delco, the higher the number, the hotter. It is essential to use a spark plug that fits a specific engine and its conditions of use. Is that NGK a direct x-reference for the Autolite? Estimated International Ship Date: Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars I think you will be fine. NGK Spark Plugs #FR5. The spark plug temperature remains too low and causes deposits to build up on the firing end; the deposits offer an electrical leakage path that gives rise to loss of sparks. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. The difference between them is heat range. NGK V-Power Spark Plugs UR5. Never miss a sale on new parts, tools, and more! ( 4 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Maybe you could use the seven heat range in the shorter plug and it will match up to the old ACs. So can anyone give me a good part number and a decent place to buy them. Reach, 13/16 in. NGK Spark Plug 7401 4pk Iridium IX UR4IX 14.00mm .460 Tapered STD Resistor. You might want to see if you can cross reference the R43 plug and see if it crosses to something other than the extended tip XR5. This number indicates the thermal characteristics of a spark plug, or how hot or cold a spark plug is. Thanks for the reply ill try and find some UR-5's and see how it runs, when ever i look online at auto parts stores at the ur-5 application chart it does not mention the 455 will they fit just like a ur-4? Spark Plug Reach (mm): 11.68mm Manufacturer Heat Range: 4 Shorty Spark Plug: No Resistor: Yes Electrode Tip Material: #1 For the NGK UR5 spark plugs recommended for our cars, mine being basically stock and running about 15# of boost.. Is there a particular part number listed other than UR5. While there are many things that can cause pre-ignition, selecting a spark plug in the proper heat range will ensure that the spark plug itself is not a hot spot source. It is a shorter plug than the 0574s, compared the two today. I'm pretty sure I've got my YR5's gapped at 0.030" too. Copyright 2023 by AUTOSALES, INCORPORATED With state-of-the-art manufacturing, inventory and distribution facilities in Irvine, California, Sissonville, West Virginia, Chicago, Illinois and ISO 14001 & ISO/TS 16949 certification, NGK is dedicated to providing our customers with the finest products and service possible. Last edited: Aug 27, 2015. I see copper core and the new V-Power advertised. They have facilities based in the USA, Mexico, Canada, the United Kingdom, Finland, France, Germany, Italy, Poland, Russia, Spain, Turkey, South Africa, and Brazil. it was the only way to go. Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars NGK-6945 UPC: 087295169452 Spark Plug Thread Size: 14mm Spark Plug Reach (in. For a better experience, please enable JavaScript in your browser before proceeding. NGK Spark Plugs #ngk7373 The spark plug is heated during combustion and must dissipate that heat to the cylinder head at a certain rate to avoid overheating the ceramic firing end. Discussion in 'Street/strip 400/430/455' started by GSX Tribute, Aug 2, 2012. Proposition 65. This number indicates the thermal characteristics of a spark plug, or how 'hot' or 'cold' a spark plug is. While every precaution has been taken in the compilation of this information, NGK Spark Plug (Australia) Pty Ltd takes no responsibility for inaccuracies that may occur within it. the spark plug heat range only indicates the rate at which the spark plug dissipates its firing end heat to the engine. Jun 1, 2005 21,549 Scott from Hamilton, NJ. ): 0.460 in. A low heat range (or hot) spark plug typically has a long thin insulator nose which will heat up easily however will not dissipate readily to the metal shell (above left). YR5 plugs here. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Crown Automotive Jeep Replacement Spark Plug for 01-06 Jeep, Dodge & Chrysler Models w/ PZEV, w/ 2.4L, 2.0L Eng. All applications, illustrations and technical information detailed on this site have been assembled based on the latest information available. JavaScript is disabled. Reach, Non-Resistor, Each, 4.0 out of 5 stars the hotter the plug. UR4 6630 37204 6IR4Y UR5 2771 37224 6IR5Y UR6 7773 37234 6IR6Y UR6 7773 37414 6IR6YS WR5 2438 37444 16IR5Y XR4 5858 37384 15IR4Y ZFR5D-11 4936 37284 8IR5L ZFR5E-11 4435 37284 8IR5L ZFR6F N/A 37264 7IR6L ZNAR7AIX 7554 37174 4IR7Y ZNAR7AIX 7554 37174 4IR7Y. Summit has both these plugs under those part numbers for $2.69 each. You guys with the YR5s - are you still gapping the same as UR5s? Is there an NGK chart I can use to cross reference AC Delco plugs to? So far so good with me. Actual OE or equivalent replacement spark plug. Never miss a sale on new parts, tools, and more! 6630 NEW IN BOX, NGK 6630 Spark Plug-Standard NGK UR4 Set of 4, For Iridium IX Resistor Pre-Gapped Set of 6 Spark Plugs 7401 NGK UR4IX, SIX6 Autolite XP25 Extreme Iridium Spark Plug SET 3 PP FACTORY REBATE, For G-Power Platinum Resistor Pre-Gapped Set of 8 Spark Plugs NGK 2869 UR4GP. sparkplugs.com P.O. It may not display this or other websites correctly. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars ( 2 ), 4.8 out of 5 stars Copyright 2023 by AUTOSALES, INCORPORATED Your knowledge is greatly appriciated! The term hot/cold is commonly used to describe whether a spark plug heats up easily (hot) or whether it provides resistance to heating up (cold). We can contact you via phone or email. NGK V-Power Spark Plugs UR4 Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. May 10, 2023 NGK V-Power Spark Plugs UR4. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. if ordered today, Spark Plug, Standard, 14mm Thread, .500 in. I've heard so much good about NGK plugs that I decided to try a set. The spark plug temperature rises too high and induces abnormal combustion (pre-ignition): this leads to melting of the spark plug electrodes as well as piston seizure and erosion. You will know if they hit. Summit Racing will BEAT any competitor's advertised price! NGK V-Power Spark Plug Heat Range 5 (FR5) NGK V-Power Spark Plug (ZFR7F-11) NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Thought that was sacrilegious putting Ford plugs in a Chevrolet. So can anyone give me a good part number and a decent place to buy them. High performance engines on the other hand produce a large amount of heat, hence a high heat range (or cold) spark plug such as a 10 heat range needs to be used to resist the heat developed by the engine. ( 23 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, 0708 in. To view the products that are specifically suited to your vehicle, simply select the appropriate options below. it was the only way to go. Please refer to our application listings for full details. USD 32.14. Thanks for the reply ill try and find some UR-5's and see how it runs, when ever i look online at auto parts stores at the ur-5 application chart it does not mention the 455 will they fit just like a ur-4? of 61, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Set (8pcs) NGK V-Power Spark Plugs Stock 2771 Nickel Core Tip Standard 0.040in UR5 . Hex, Projected Tip, Resistor, Each, 4.96 out of 5 stars Do you run the XR5'S on the street or a heat range higher? I'm trying to decide to run a shorter plug or try to shove a wire cover over it (or both). Estimated International Ship Date: http://www.autozone.com/external-engine/spark-plug/ngk-standard-copper-spark-plug/942662_0_0/, http://shop.advanceautoparts.com/p/ngk-v-power-spark-plug-2771/19650111-P. Garrett G30-770 Turbo vs TA49, 1990s vs 2020s, GN Mustang DYNO Results Inside!! The heat range seven doesn't have the projected tip like the fives do. Today, Spark Plugs, Ruthenium HX, Platinum, Resistor, 14mm Thread Size, 0.708 in. NGK has become a global brand is practically visible all over the globe. I was just searching shorty plugs and tripped on this thread. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars For the NGK UR5 spark plugs recommended for our cars, mine being basically stock and running about 15# of boost.. Is there a particular part number listed other than UR5. If it does hit it shouldn't damage the piston like it would if you fired it up and ran it at a much greater rpm at idle.. 576s is not listed as a SBC plug part number. Reach, Tapered Seat, 5/8 in. The company utilizes the industry's most advanced manufacturing facility. Reach, 5/8 in. The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. ( 5 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, 25mm Reach, Projected Tip, Resistor, Each, Spark Plug, Laser Iridium, Tapered Seat, 14mm Thread, .708 in. You can order this part by Contacting Us. Genuine NGK 7401 UR4IX Iridium IX Spark Plug. It may not display this or other websites correctly. 1; 2; Next. Select a store to see pricing & availability. ( 4 ), 5.0 out of 5 stars Over the winter I found some NGK plugs that look identical to the 43N. Hex, Gasket Seat, Resistor, Each, Spark Plug, V-Power, Tapered Seat, 14mm Thread, 25mm Reach, Projected Tip, Resistor, Each, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. Check the status of your NGK V Power Spark Plug UR4 (8 Pack) for CHEVROLET CAMARO 1976-1981 5.7L/350 . I like them and I've been abusing them for 2 years. Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars USD 27.05 . NGK Spark Plugs #FR5. What I would do if you really want to be sure is put one in, disconnect the main coil wire so the car won't start and crank the engine over once. You can order this part by Contacting Us. $5 Off Your $100 Mobile App Purchase . Thanks. NGK IRIDIUM IX Iridium Spark Plugs UR4IX 7401 Set of 4. Post Posted: Wed Sep 19, 2007 11:25 am . I like yr5s for alky, and yr5 for no alky 15psi ish boost. Learn more about our The 4 is hotter, and the 5 is cooler. Just went and bought some UR5s. The XR5 looks more like a R43S than a R43. Stay Updated with Emails from Summit Racing. . This is a custom order part. loyalty program The pictures below are an AC Delco R43, and an NGK XR5 V Power both of which are the correct plug for my application. You can depend on NGK for quality and reliability. Reach, 5/8 in. If youare in search of high-quality spark plugs, oxygen sensors, and high tension wires that would not leave you hanging on the road, then NGK is the brand for you. Note: This cross-reference is a guide only and may not be suitable for all vehicles. Sorry to dig up an old thread, but how about the Accel 0576s? NGK UR5 2.1875 Wires: MSD 8.5MM . ( 5 ), 3.4 out of 5 stars May 23, 2023, Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in. ( 17 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .708 in. For a better experience, please enable JavaScript in your browser before proceeding. With state-of-the-art manufacturing, inventory and distribution facilities in North America and across the globe, NGK is dedicated to providing customers with world-class products and services. ( 21 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 in. An example is: DPR5EA-9; 2887. Pull the NGK plug out and check the electrode. Detailed Description Reach, Resistor, Each. Today, Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .708 in. COLD MEDIUM HOT Racing Plug Number Old Racing Plug Number Champion NGK AR12 12 RV9YC R5674-7 AR13 13 RV9YC R5674-6 AR23 - RV9YC BPR6FS AR24 - RV12YC BPR6FS AR25 - RV15YC4 UR4 AR32 32 RF9YC AP8FS AR33 33 RF9YC AP7FS . Post subject: NGK UR4 or UR5. Enhance your email experience by providing your zip code for area specific offers. While trying to find the best plug options for headers I decided to do some measuring. Reach, Projected Tip, Resistor, Spark Plug, Traditional, 14mm Thread, .750 in. Google NGK spark plug heat range. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .691 in. NGK V-Power Spark Plug UR5 (6 Pack) for PONTIAC FIERO GT 1985-1988 2.8L/173 . I couldn't find them when I went to get my car last year so I put the equivalent Autolights in it. ( 25 ), Estimated USA Ship Date: NGK-6630 equates to the ur4. Check for correct application and spec/measurements. I always ran AC 43N sparkplugs in my L78. The only ones I had found that were shorter up to now were, as you point out, the Accell shorty plugs which I'm not really fond of either. ( 6 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. . ( 1 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, 26.5mm Reach, Resistor, Each, Estimated Ship Date: I copied this from a website. The V-Power plugs also are highly durable against electrical and chemical wear, making them a long-life replacement plug. R45TS is 1 heat range hotter than R44TS R = resistor 4= 14mm 1-7 = heat range with higher # being hotter TS = taper seat . It is a common misconception that spark plugs create heat. Part# NGK STK # NGK # Comp. Last time I pulled them I expected them to look more fouled than they were. Ngk Ngk V-Power Plugs 6630 UR4. ( 25 ), Estimated Ship Date: ( 2 ), Spark Plug, Standard Series, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. R45TS has a reach of .460" and R44LTS has a reach of .708" All of these plugs have 14MM threads with tapered seats. Thanks, Sam. Hex, Each, 4.86 out of 5 stars Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars I see copper core and the new V-Power advertised. NGK Spark Plugs UR4 V-Power Resistor Spark Plug. Do a search..Some recommend NGK YR5's over the UR5''s . Reach, Projected Tip, Resistor, Each, Spark Plug, GP Platinum, 14mm Thread, .460 in. JavaScript is disabled. Wednesday 4/19/2023 4-Pack PN Plug Style. Spark Plug specification is subject to change without notice. NGK Iridium/Platinum Heat Range 5 Spark Plug (DILFR5A11) DILFR5A11. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Sorry, you're using a web browser that is no longer supported. The stock number is a random 3-, 4- or 5-digit number and has no relation to heat range or plug type. Results 1 - 25 ( 1 ), Spark Plug, GP Platinum, 14mm Thread, .460 in. I have NGK UR4, and the wire for #6 is is. Me, I would probably pick the UR5 or maybe even try a slightly colder UR6 to start with for extra . Wednesday 4/19/2023 I've always used AC Delco plugs in my 70 Z28 with the stock LT1 engine. . Estimated International Ship Date: Example a R5671A-7 (a good street/strip plug) is a cold plug where a R5671A-10 is a very cold plug used for large 400hp and up nitrous and other power adder applications) Autolite Heat Ranges - The larger the last digit in the part number, the hotter the plug is. Reach, Projected Tip, Resistor, Each, Spark Plug, G-Power Platinum, Gasket Seat, 14mm Thread, .750 in. Spark Plug; Plug Number: UR5; NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. You might want to see if you can cross reference the R43 plug and see if it crosses to something other than the extended tip XR5.
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