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1988, 1987, 1986, 1985, 1984, 1983, 1982 GMC S15 Spark Plug
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1982 - 1988 GMC S15 Spark Plug (Autolite) NEW

$ 16 .68

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap .044 (in)
Iridium XP Spark Plug
Autolite® Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.
Brand: Autolite
Condition: New
See Other GMC S15 Spark Plugs
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Center Electrode Core Material Copper
Center Electrode Design Fine Wire
Center Electrode Insulator Tip Projection 0.133, 3.38
Center Electrode Projection Mid Projection
Center Electrode Tip Material Iridium
Core Nose Length 0.597, 15.16
Electrical Terminal Type Non-removable Nut
Grade Type Performance
Ground Electrode Quantity 1
Ground Electrode Tip Design Taper Cut
Ground Electrode Tip Material Platinum
Hex Size 5/8
Hex Type Hex
Indexed No
Insulator Height 2.274, 57.76
Insulator Material Ceramic
Pre Gap Size 0.044, 1.12
Reach 0.431, 10.95
Resistance 4000
Resistor Type Yes
Seat Type Tapered
Washer Included No

Vehicle Fitment Guide

This part fits the following vehicles:

GMC 1 model (tapclick to expand)(tapclick to hide)
S15 1982-1988 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Cab & Chassis 1988 V6 4.3L RWD/4WD Automatic & Manual
Base Cab & Chassis 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Base Cab & Chassis 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
Base Cab & Chassis 1983 - 1985 L4 1.9L 4WD Automatic & Manual
Base Cab & Chassis 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
Base Cab & Chassis 1983 - 1988 V6 2.8L 4WD Automatic & Manual
Base Cab & Chassis 1982 - 1985 L4 1.9L RWD Automatic & Manual
Base Cab & Chassis 1982 - 1988 V6 2.8L RWD Automatic & Manual
Base Extended Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
Base Extended Cab Pickup 1983 - 1985 L4 1.9L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 1983 - 1988 V6 2.8L RWD/4WD Automatic & Manual
Base Standard Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
Base Standard Cab Pickup 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Base Standard Cab Pickup 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
Base Standard Cab Pickup 1983 - 1985 L4 1.9L 4WD Automatic & Manual
Base Standard Cab Pickup 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
Base Standard Cab Pickup 1983 - 1988 V6 2.8L 4WD Automatic & Manual
Base Standard Cab Pickup 1982 - 1985 L4 1.9L RWD Automatic & Manual
Base Standard Cab Pickup 1982 - 1988 V6 2.8L RWD Automatic & Manual
EL Standard Cab Pickup 1987 L4 2.5L RWD/4WD Automatic & Manual
EL Standard Cab Pickup 1987 V6 2.8L RWD/4WD Automatic & Manual
Gypsy Cab & Chassis 1983 L4 1.9L RWD/4WD Automatic & Manual
Gypsy Cab & Chassis 1983 L4 2.0L RWD/4WD Automatic & Manual
Gypsy Cab & Chassis 1983 V6 2.8L RWD/4WD Automatic & Manual
Gypsy Extended Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
Gypsy Extended Cab Pickup 1986 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Gypsy Extended Cab Pickup 1983 L4 1.9L RWD/4WD Automatic & Manual
Gypsy Extended Cab Pickup 1983 L4 2.0L RWD/4WD Automatic & Manual
Gypsy Extended Cab Pickup 1983, 1986 - 1988 V6 2.8L RWD/4WD Automatic & Manual
Gypsy Standard Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
Gypsy Standard Cab Pickup 1986 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Gypsy Standard Cab Pickup 1983 L4 1.9L RWD/4WD Automatic & Manual
Gypsy Standard Cab Pickup 1983 L4 2.0L RWD/4WD Automatic & Manual
Gypsy Standard Cab Pickup 1983, 1986 - 1988 V6 2.8L RWD/4WD Automatic & Manual
High Sierra Extended Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
High Sierra Extended Cab Pickup 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
High Sierra Extended Cab Pickup 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
High Sierra Extended Cab Pickup 1983 - 1985 L4 1.9L RWD/4WD Automatic & Manual
High Sierra Extended Cab Pickup 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
High Sierra Extended Cab Pickup 1983 - 1988 V6 2.8L RWD/4WD Automatic & Manual
High Sierra Standard Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
High Sierra Standard Cab Pickup 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
High Sierra Standard Cab Pickup 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
High Sierra Standard Cab Pickup 1983 - 1985 L4 1.9L 4WD Automatic & Manual
High Sierra Standard Cab Pickup 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
High Sierra Standard Cab Pickup 1983 - 1988 V6 2.8L 4WD Automatic & Manual
High Sierra Standard Cab Pickup 1982 - 1985 L4 1.9L RWD Automatic & Manual
High Sierra Standard Cab Pickup 1982 - 1988 V6 2.8L RWD Automatic & Manual
Sierra Classic Extended Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
Sierra Classic Extended Cab Pickup 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Sierra Classic Extended Cab Pickup 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
Sierra Classic Extended Cab Pickup 1983 - 1985 L4 1.9L RWD/4WD Automatic & Manual
Sierra Classic Extended Cab Pickup 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
Sierra Classic Extended Cab Pickup 1983 - 1988 V6 2.8L RWD/4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1988 V6 4.3L RWD/4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1985 - 1988 L4 2.5L RWD/4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1984 - 1985 L4 2.2L DIESEL RWD/4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1983 - 1985 L4 1.9L 4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1983 - 1984 L4 2.0L RWD/4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1983 - 1988 V6 2.8L 4WD Automatic & Manual
Sierra Classic Standard Cab Pickup 1982 - 1985 L4 1.9L RWD Automatic & Manual
Sierra Classic Standard Cab Pickup 1982 - 1988 V6 2.8L RWD Automatic & Manual
Sierra Grande Standard Cab Pickup 1982 L4 1.9L RWD Automatic & Manual
Sierra Grande Standard Cab Pickup 1982 V6 2.8L RWD Automatic & Manual
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Autolite® Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.

Interchange Parts

Brand Part Number
DENSO Auto Parts ITF20
DENSO Auto Parts ITF20TT
NGK 7177
NGK UR5IX

Fits Years: 1982 1983 1984 1985 1986 1987 1988

Fits Models: S15

Go-Parts Garage · Featured Guide

Choosing the Right Spark Plugs for Your 1982-1990 GMC S15

Keep your classic GMC S15 running strong by picking the best spark plugs for its specific engine.

Read Full Guide →
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