{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": true,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": true,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": true,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": true,
    "zipPaymentFlag": "c",
    "hassleFreeReturn": true,
    "lifetimeReplacement": true,
    "cpn_off": false
}
1985 GMC C1500 Suburban
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
1985 GMC C1500 Suburban

1985 GMC C1500 Suburban Spark Plugs

Refine by:
See All

Shop Catalog

Showing 1 - 15 of 40 results
Display item:
15
30
45
Sort by:
Platinum TT Series Spark Plug, Sold individually
Denso®
Platinum TT Series Spark Plug, Sold individually
Part Number: NP4509
Guaranteed to Fit
$10.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Eng.VIN: M
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Eng.VIN: M
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Eng.VIN: M
Product Details
Notes : 5/8 in. hex size; Solid terminal type; Gasket seat style; Twin tip design; Titanium enhanced ground electrode; Machine rolled threadsSeries : Platinum TT SeriesSpark Plug Code : PTF16TTElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year Denso limited WarrantyProp 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 CoreReach : 11.6 mm ReachGap Size : 1 mmHeat Range : 16Thread Size : 14 mm thread size
Platinum TT Series Spark Plug, Set of 8
Denso®
Platinum TT Series Spark Plug, Set of 8
Part Number: SET-NP4509-8
Guaranteed to Fit
$38.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Eng.VIN: M
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Eng.VIN: M
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Eng.VIN: M
Product Details
Series : Platinum TT SeriesSpark Plug Code : PTF16TTElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 8Warranty : 1-year Denso limited WarrantyProp 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 CoreReach : 11.6 mm ReachGap Size : 1 mmHeat Range : 16Thread Size : 14 mm thread size
Iridium TT Series Spark Plug, Sold individually
Denso®
Iridium TT Series Spark Plug, Sold individually
Part Number: NP4715
Guaranteed to Fit
$14.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Eng.VIN: M
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Eng.VIN: M
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Eng.VIN: M
Product Details
Notes : 16 mm Hex Size; (1) Ground Electrode; Tapered Seat Type; Platinum Twin-Tip Ground Electrode Tip Design; Twin-Tip ConfigurationSeries : Iridium TT SeriesElectrode Tip Material : Iridium-Rhodium Alloy Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year or 12,000-mile Denso limited warrantyProp 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 : Nickel Copper Alloy Electrode CoreReach : 0.46 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementHeat Range : 16Thread Size : 0.55 in.
Professional Platinum Series Spark Plug, Sold individually
AC Delco®
Professional Platinum Series Spark Plug, Sold individually
Part Number: AC41-817
Guaranteed to Fit
$14.99
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L
Product Details
Series : Professional Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 7-year or unlimited mile AC Delco warrantyProp 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 CoreGap Size : OE Replacement
Professional Platinum Series Spark Plug, Set of 8
AC Delco®
Professional Platinum Series Spark Plug, Set of 8
Part Number: SET-AC41-817-8
Guaranteed to Fit
$63.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L
Product Details
Series : Professional Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 8Warranty : 7-year or unlimited mile AC Delco warrantyProp 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 CoreGap Size : OE Replacement
Professional Platinum Series Spark Plug, Sold individually
AC Delco®
Professional Platinum Series Spark Plug, Sold individually
Part Number: AC41-803
Guaranteed to Fit
$13.99
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Gap .045
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Gap .045
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Gap .045
Product Details
Notes : 14 mm headSeries : Professional Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 7-year or unlimited mile AC Delco warrantyProp 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 CoreReach : 11.2 mm ReachGap Size : 0.045 in.Thread Size : 14 mm thread size
Professional Platinum Series Spark Plug, Set of 8
AC Delco®
Professional Platinum Series Spark Plug, Set of 8
Part Number: SET-AC41-803-8
Guaranteed to Fit
$59.99
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Gap .045
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Gap .045
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Gap .045
Product Details
Series : Professional Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 8Warranty : 7-year or unlimited mile AC Delco warrantyProp 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 CoreReach : 11.2 mm ReachGap Size : 0.045 in.Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Sold individually
AC Delco®
Professional Conventional Series Spark Plug, Sold individually
Part Number: ACR43TS
Guaranteed to Fit
$9.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Original Equipment, Gap .045
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Original Equipment, Gap .045
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Original Equipment, Gap .045
Product Details
Notes : 5/8 in. hex size; Tapered seat styleSeries : Professional Conventional SeriesSpark Plug Code : R43TSElectrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 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 CoreGap Size : 0.045 in.Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Set of 8
AC Delco®
Professional Conventional Series Spark Plug, Set of 8
Part Number: SET-ACR43TS-8
Guaranteed to Fit
$27.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L Original Equipment, Gap .045
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L Original Equipment, Gap .045
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L Original Equipment, Gap .045
Product Details
Series : Professional Conventional SeriesSpark Plug Code : R43TSElectrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Set of 8Warranty : 24-months or unlimited mile AC Delco limited warrantyProp 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 CoreGap Size : 0.045 in.Thread Size : 14 mm thread size
C-Cut Shorty Series Spark Plug, Set of 4
Accel®
C-Cut Shorty Series Spark Plug, Set of 4
Part Number: A350276S4
Guaranteed to Fit
$29.55
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L
Product Details
Notes : 5/8 in. hex size; Projected tip; Tapered seat styleSeries : C-Cut Shorty SeriesSpark Plug Code : 0276SElectrode Tip Material : Copper Electrode TipQuantity Sold : Set of 4Warranty : 90-day Accel limited warrantyProp 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 CoreReach : 0.46 in. ReachGap Size : 0.035 in.Recommended Use : PerformanceHeat Range : 6Thread Size : 14 mm thread size
Standard Series Spark Plug, Sold individually
Denso®
Standard Series Spark Plug, Sold individually
Part Number: NP5036
Guaranteed to Fit
$8.99
Vehicle Fitment
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L
Product Details
Notes : 5/8 in. hex size; Projected tip; Solid terminal type; Tapered seat style; Machine rolled threads; U-Groove electrode configurationSeries : Standard SeriesSpark Plug Code : T20PR-U11Quantity Sold : Sold individuallyWarranty : 1-year Denso limited WarrantyProp 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 CoreReach : 11.6 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Platinum Series Spark Plug, Sold individually
Bosch®
Platinum Series Spark Plug, Sold individually
Part Number: BS6722
Guaranteed to Fit
$12.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L
Product Details
Notes : 1.25 mm Thread Pitch; 16 mm Hex Size; Tapered Seat Type; Solid Terminal Type; 0.6 mm Center Electrode Size; Fine Wire Type; Projected; (1) Standard; Taper-Cut Shape; With ResistorSeries : Platinum SeriesElectrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year Bosch limited warrantyProp 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.

Promotions : European Vehicle PartsElectrode Core Material : Platinum Electrode CoreReach : 11 mm ReachGap Size : 1.1 mmHeat Range : 7Thread Size : 14 mm
Iridium Series Spark Plug, Set of 4
MSD®
Iridium Series Spark Plug, Set of 4
Part Number: M4637224
Guaranteed to Fit
$47.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L
Product Details
Notes : 5/8 in. hex size; Projected insulator type; Tapered seat style; Iridium power electrode configurationSeries : Iridium SeriesSpark Plug Code : 6IR5YElectrode Tip Material : Iridium Electrode TipQuantity Sold : Set of 4Warranty : 1-year MSD limited warrantyProp 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 CoreReach : 11 mm ReachRecommended Use : PerformanceProduct Fit : Direct FitHeat Range : 5Thread Size : 14 mm thread size
Iridium Series Spark Plug, Set of 4
MSD®
Iridium Series Spark Plug, Set of 4
Part Number: M4637204
Guaranteed to Fit
$48.49
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L 4 Pack; Plug Type 6IR4Y; 0.035 in. Plug Gap
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L 4 Pack; Plug Type 6IR4Y; 0.035 in. Plug Gap
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L 4 Pack; Plug Type 6IR4Y; 0.035 in. Plug Gap
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L 4 Pack; Plug Type 6IR4Y; 0.035 in. Plug Gap
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L 4 Pack; Plug Type 6IR4Y; 0.035 in. Plug Gap
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L 4 Pack; Plug Type 6IR4Y; 0.035 in. Plug Gap
Product Details
Notes : 5/8 in. hex size; Projected insulator type; Tapered seat style; Iridium power electrode configurationSeries : Iridium SeriesSpark Plug Code : 6IR4YElectrode Tip Material : Iridium Electrode TipQuantity Sold : Set of 4Warranty : 1-year MSD limited warrantyProp 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 CoreReach : 11 mm ReachRecommended Use : PerformanceProduct Fit : Direct FitHeat Range : 4Thread Size : 14 mm thread size
HP Series Spark Plug, Set of 8
Accel®
HP Series Spark Plug, Set of 8
Part Number: A358179
Guaranteed to Fit
$43.47
Vehicle Fitment
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.7L 14mm Thread; .460 in. Reach; Heat Range 6; 8 Pack Of PN[0576];0.045 in. Plug Gap
  • 1985 GMC C1500 Suburban Sierra Classic 8 Cyl 5.0L 14mm Thread; .460 in. Reach; Heat Range 6; 8 Pack Of PN[0576];0.045 in. Plug Gap
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.0L 14mm Thread; .460 in. Reach; Heat Range 6; 8 Pack Of PN[0576];0.045 in. Plug Gap
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.7L 14mm Thread; .460 in. Reach; Heat Range 6; 8 Pack Of PN[0576];0.045 in. Plug Gap
  • 1985 GMC C1500 Suburban High Sierra 8 Cyl 5.7L 14mm Thread; .460 in. Reach; Heat Range 6; 8 Pack Of PN[0576];0.045 in. Plug Gap
  • 1985 GMC C1500 Suburban Base 8 Cyl 5.0L 14mm Thread; .460 in. Reach; Heat Range 6; 8 Pack Of PN[0576];0.045 in. Plug Gap
Product Details
Series : HP SeriesQuantity Sold : Set of 8Warranty : 90-day Accel limited warrantyProp 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.

Recommended Use : Performance ReplacementProduct Fit : Direct Fit
Page 1 of 3 | Showing 1 - 15 of 40 results

Popular Products

Helpful Automotive Resources

A Short Course on Ignition Systems
A Short Course on Ignition SystemsLet’s see how this is done. The role of spark plugs is integral in the operation of the ignition systems as they ignite the air/fuel mixture—at exactly the right instant.
Why Won’t My Car Start?
Why Won’t My Car Start?Automotive professionals break down no-start situations into two separate categories: crank-no-start and no-crank-no-start.
P0354 Code: Ignition Coil “D” Primary/Secondary Circuit
P0354 Code: Ignition Coil “D” Primary/Secondary CircuitIn an engine with a COP ignition system, each cylinder comes with its own ignition coil that sits on top of the spark plug. The computer monitors the circuit between it and every ignition coil for faults. It will file a trouble code depending on the cylinder that experienced a
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.