{
    "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 Fit1991 Ford Thunderbird Change Vehicle

Denso®
1991 Ford Thunderbird - Platinum TT Series Spark Plug, Set of 8

Name: 1991 Ford Thunderbird Platinum TT Series Spark Plug, Set of 8 SET-NP4509-8 by Denso®
Brand: Denso
SKU: SET-NP4509-8
Price: 38.49 USD
Availability: InStock
Rating: 5 (1 reviews)

Tap image and pinch to zoom.

$38.49

Manufacturer #SET-NP4509-8

Guaranteed to Fit1991 Ford Thunderbird 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

1991 Ford Thunderbird

Base

8 Cyl 5.0L

1991 Ford Thunderbird

8 Cyl 5.0L

Highlights

Part:

Spark Plug

Brand:

Denso

Series:

Platinum TT Series

Spark Plug Code:

PTF16TT

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:

11.6 mm Reach

Thread Size:

14 mm thread size

Vehicle Fitment Information

Vehicle Name

Submodel

Engine

Fitment Information

1967 Buick Electra

Base

8 Cyl 7.0L

1967 Buick Electra

Custom

8 Cyl 7.0L

1967 Buick Gran Sport

Base

8 Cyl 6.6L

1967-1968 Buick Skylark

Base

8 Cyl 6.6L

1967-1969 Buick Riviera

Base

8 Cyl 7.0L

Page 1 of 489 | Showing 1 - 5 of 2443 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
11.6 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.