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Autolite Racing Spark Plugs R51 Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each

SKU: ATLR51

Spark Plugs

Autolite Racing Spark Plugs R51 Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each

SKU: ATLR51

Spark Plugs
A$17.53
IN STOCK! Est Ship 3-7 Days days. In stock at 1 location (more than 10 available)

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Description


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 16:41:19

Data: v4.2 - Upd: 2026-11-07 23:56:39

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Autolite
StreetFX SKU atlR51
SFX Item ID 5177404
Accounting SKU atl-R51
Manufacturer SKU R51
Manufacturer UPC 009100017727
Alternative References ATL-AR51

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each

Autolite racing spark plugs are the preferred choice for many professionals. They contain an Yttrium-enhanced alloy, which enables up to 8 percent reduction in side wire temperatures for improved durability and less pre-ignition. These replacement spark plugs are available in colder heat ranges than most plug manufacturers to support modified engines. They feature a cut background electrode, which improves ignitibility and faster flame kernel growth. Autolite racing spark plugs have a nickel plated finish for long life and corrosion resistance. They're available in a variety of styles, sizes, and other options--in universal or vehicle-specific applications.

Product Attributes
BrandAutolite
Manufacturer's Part NumberR51
Part TypeSpark Plugs
Product LineAutolite Racing Spark Plugs
UPC00009100017727
Spark Plug Thread Size14mm
Spark Plug Reach (in.)0.750 in.
Spark Plug Reach (mm)19.05mm
Shorty Spark PlugNo
ResistorNo
Electrode Tip MaterialChromium nickel alloy
Electrode Core MaterialCopper
Center Electrode TypeProjected
Spark Plug Seat StyleGasket
Wrench Diameter13/16 in.
Ground Strap QuantityOne
QuantitySold individually.

Compatibility

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