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Price Match Guarantee
60-Day Returns
Lifetime Replacement
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Vehicle Info Required to Guarantee FitAdd Vehicle

Denso®
SET-NP4511-8 Platinum TT Series Spark Plug, Set of 8

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$40.99
OR
Manufacturer #SET-NP4511-8
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Included in This Kit

Qty
Part
Brand
Location
Replaces OE Number
Spark Plug
Denso
-
-

Highlights

Part:
Spark Plug
Brand:
Denso
Series:
Platinum TT Series
Spark Plug Code:
PT16TT
Electrode Tip Material:
Platinum Electrode Tip
Quantity Sold:
Set of 8
Warranty:
1-year Denso limited Warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Electrode Core Material:
Copper Electrode Core
Gap Size:
1 mm
Heat Range:
16
Reach:
18 mm Reach
Thread Size:
14 mm thread size

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1982-1985 Cadillac DeVille
Base
8 Cyl 4.1L
-
1982-1985 Cadillac DeVille
Cabriolet
8 Cyl 4.1L
-
1982-1985 Cadillac Eldorado
Cabriolet
8 Cyl 4.1L
-
1982-1985 Cadillac Eldorado
Touring
8 Cyl 4.1L
-
1982-1985 Cadillac Fleetwood
Brougham
8 Cyl 4.1L
-
Page 1 of 177 | Showing 1 - 5 of 884 results

Product Information

DENSO PREMIUM CLASS PLATINUM TWIN TIP SPARK PLUG

Denso's Premium Class Platinum Twin Tip Spark Plugs revolutionary twin tip design provides better ignitability for a more powerful and fuel-efficient combustion yielding better engine performance in terms of power and fuel economy.

Specification:
  • 14 mm thread size
  • 18 mm reach
  • 0.63 in. hex size
  • 0.04 in. gap size
  • Tapered seat style
  • Resistor plug type
  • Platinum alloy 1.1 mm fine wire center electrode
  • Titanium enhanced 1.5 mm fine wire ground electrode
  • Solid terminal nut
  • Heat range 16

Features:
  • Greatly improves mileage
  • Provides more power and faster starts
  • Reduce carbon emissions


Need help?Call our product expert1-866-529-0412
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Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

1
Are these spark plugs calibrated?Gerardo T.Jun 15, 2023
Best Answer:Hi Gerardo, thank you for reaching out. Yes, they are. You can click the link below to order the set while stocks last. Have a good one! <a href="https://www.carparts.com/spark-plug/denso/set-np4511-8?can=cpab2020_csqa_20230615" target="_blank">https://www.carparts.com/spark-plug/denso/set-np4511-8?can=cpab2020_csqa_20230615</a>
Andrew B.STAFFJun 15, 2023
0
Are these pre-gaped, or do they have to be done manually? The book says .054. But it seems these are gapped where they are for a reason, yeah?Christian G.May 16, 2024
Best Answer:Hi Christian, I'm glad to assist you. Yes. It is with a 0.04 gap size. For us to check carefully and be accurate on the part you need, please provide the complete details of your vehicle (year, make, model, submodel, 2WD/4WD, and engine size). The VIN would be helpful. You can also call our parts specialist (for real-time live & immediate assistance) on our toll-free number, 1-866-529-0412 (Mon to Sun).
Jeonino E.STAFFMay 17, 2024
0
Are returns free?Derrick A.Sep 08, 2023
Best Answer:Hi Derrick, I'm pleased to assist you. It depends on the reason why you are returning them. You can learn more about our return policy here: <a href="https://www.carparts.com/customer/returnpolicy" target="_blank">https://www.carparts.com/customer/returnpolicy</a> If you're interested in this set of plugs, click the link below to order while supplies last. Your order will come with a 30-day post-purchase price match guarantee. I hope this helps. Enjoy shopping! <a href="https://www.carparts.com/spark-plug/denso/set-np4511-8?can=CPGG4850_CSQA_20230908" target="_blank">https://www.carparts.com/spark-plug/denso/set-np4511-8?can=CPGG4850_CSQA_20230908</a>
Grace G.STAFFSep 08, 2023

Customer Reviews

Platinum Tt Series Spark Plug, Set Of 8
Been working great
They look like quality but are similar price to autolites. I never gap and never had a problem. I bought these with Walker coils to fix my cylinder Rich misfires. It runs perfect now. No misfires. No codes.
Miguel A.
VERIFIED PURCHASER
Purchased on Jul 16, 2023
Platinum Tt Series Spark Plug, Set Of 8
exactly what i ordered
Dusty R.
VERIFIED PURCHASER
Purchased on Jul 26, 2023
Platinum Tt Series Spark Plug, Set Of 8
Great product
Gail L.
VERIFIED PURCHASER
Purchased on Feb 05, 2024