Spark Plug Suppressor

Name: Spark Plug Suppressor
Brand: AUTOLITE
SKU: 417-APP5426
Price: 5.47 USD
Availability: InStock

^$5⁴⁷$7.99You Save$2.52

2 left in stock

Ships on Nov 02, 2026

Lowest Price Guarantee

Copper Core, Double Platinum, Long Shell Design

Suppressor
Hex: 5/8"
Reach: 1"
Seat: Tapered
Thread Diameter: 14mm
Tip: Extended

Cross Reference
CHAMPION---7440
CHAMPION---RE14PLP5
CHRYSLER---4686742AE
CHRYSLER---RE14PLP5
CHRYSLER---S2RE14PLP5
CHRYSLER---S3RE14PLP5

Features:

30% more durable*
OE design for DIS systems
Full Platinum Tips: Platinum on both center & side electrode for reduced gap wear
Platinum Ball Welding provides consistent point of contact for better adhesion
Optimizes engine performance, longevity, fuel economy, and starts
*Durability versus the average of leading competitors
Spark Plug Heat Ranges & Applications

Part TypeSpark Plug
Product LineAutolite Double Platinum Spark Plugs
BrandAUTOLITE
Package Height1.1
Package Width1.1
Package Length3.8
Weight0.12 PG
Part CategoryReplacement Parts
Seat StyleTapered
Reach (In)1"
Center Electrode DesignStandard / Regular
Insulator TypeExtra-Long Projection
Thread Size14mm X 1.25
Center Electrode Core MaterialDouble Platinum
Drive Size5/8" (16mm)
Gap- Factory Preset.050"/1.3mm
Center Electrode Tip MaterialDouble Platinum
Insulator MaterialCeramic
Part FitmentDirect Fit
ResistorResistor
Vendor Part NumberAPP5426
Package Qty1
Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations
⚠️ Warning
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.