{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}

Retrieve Cart

Track order

File a Return

Need Help? Call Us1-866-529-0412

Auto Body Parts & Mirrors

Headlights & Lighting

Engine & Drivetrain

Brakes, Suspension & Steering

Interior

Exterior

Tools & Garage

Wheels & Tires

Price Match Guarantee

60-Day Returns

Lifetime Replacement

Price Match Guarantee

60-Day Returns

Lifetime Replacement

Guaranteed to Fit2011 GMC Sierra 1500 Change Vehicle

Denso®
2011 GMC Sierra 1500 - Platinum TT Series Spark Plug, Set of 8

Name: 2011 GMC Sierra 1500 Platinum TT Series Spark Plug, Set of 8 SET-NP4511-8 by Denso®
Brand: Denso
SKU: SET-NP4511-8
Price: 40.99 USD
Availability: InStock
Rating: 5 (8 reviews)

Tap image and pinch to zoom.

$40.99

Manufacturer #SET-NP4511-8

Guaranteed to Fit2011 GMC Sierra 1500 Change Vehicle

Qty:

Included in This Kit

Qty

Part

Brand

Location

Replaces OE Number

Spark Plug

Denso

Your Vehicle Fit Details

Vehicle Name

Submodel

Engine

Fitment Information

2011 GMC Sierra 1500

SLE

8 Cyl 5.3L

2011 GMC Sierra 1500

8 Cyl 4.8L

2011 GMC Sierra 1500

SLE

8 Cyl 6.2L

2011 GMC Sierra 1500

Denali

8 Cyl 6.2L

2011 GMC Sierra 1500

SLE

8 Cyl 4.8L

2011 GMC Sierra 1500

SLT

8 Cyl 5.3L

2011 GMC Sierra 1500

Hybrid

8 Cyl 6.0L

2011 GMC Sierra 1500

8 Cyl 4.8L

2011 GMC Sierra 1500

8 Cyl 5.3L

2011 GMC Sierra 1500

SLT

8 Cyl 6.2L

2011 GMC Sierra 1500

8 Cyl 5.3L

2011 GMC Sierra 1500

XFE

8 Cyl 5.3L

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: 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:

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

Chat with us

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

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

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

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