Spark Plugs & Ignition Wires

The spark plug is the last component in the ignition chain — and the one that actually ignites the charge. A plug that's the wrong heat range, worn beyond spec, or fouled from a rich mixture will cost power and cause misfires that no ignition box can compensate for. This collection covers spark plugs, ignition wire sets, spooled wire, plug boot kits, boot protectors, wire holders, distributor caps, distributor rotors, and all related ignition components built for maximum spark energy and reliable ignition on any engine combination.

Spark plugs are available in copper, platinum, and iridium electrode configurations across a full range of heat ranges for naturally aspirated, forced induction, and nitrous applications. Heat range selection is critical — a plug that's too hot causes pre-ignition and detonation on a performance engine; too cold and the plug fouls under light-load driving. Performance engines with elevated compression, forced induction, or nitrous typically require a colder plug than the factory specification. Projected tip designs improve ignitability under lean or high-velocity airflow conditions. Recessed tip designs protect the electrode in high-boost applications where a projected tip would be exposed to excessive heat.

Spark plug wire sets are the final link between the ignition coil and the plug. High-performance wire sets with spiral-wound or straight-wound conductors minimize radio frequency interference while maximizing energy delivery to the plug gap. Wire diameter — 8mm, 8.5mm, and 10mm — affects both suppression capability and current-carrying capacity. Matched wire sets are available for popular domestic V8 and six-cylinder applications in a range of colors and boot configurations to suit any engine bay layout. Spooled wire and boot kits allow custom-length wire fabrication for non-standard routing, engine swaps, and builds where off-the-shelf sets don't fit cleanly.

Plug boot protectors shield the boots from exhaust heat on tight header installations where the wire runs close to the primary tubes — a common failure point on performance builds with long-tube headers. Wire separators and holders keep the wire set organized, prevent contact between wires that can cause cross-fire, and give the engine bay a finished, professional appearance.

Distributor caps and rotors are wear items that should be inspected and replaced on a regular service interval — and immediately on any performance build where ignition reliability is a priority. Carbon tracking, worn contacts, and cracked caps cause misfires and timing scatter that degrade performance and can damage pistons on high-compression engines. Performance caps with brass terminals and vented designs improve durability and heat dissipation over standard OEM units.

This collection serves every engine combination — mild street rebuilds running stock plugs and OEM-style wires, high-compression naturally aspirated builds requiring colder plugs and high-energy wire sets, forced induction and nitrous applications demanding the correct plug heat range and gap for the power level, and classic restorations sourcing correct-style ignition components.

Spark plug and wire set replacement is one of the most accessible maintenance and performance tasks available — basic hand tools and 30–60 minutes cover most V8 applications. Always gap plugs to the manufacturer's specification for your specific ignition system and application before installation. Verify wire routing clears exhaust components before finalizing the installation.

Shop the full Spark Plugs & Ignition Wires collection and make sure every cylinder fires exactly as it should.

Showing 558 of 558 products
Filter Products

Filter Products

Showing 558 of 558 products

Clear
  • NGK Spark Plug Stock 2314 LZTR5AIX-13
    Sold out
    Add to wishlist
    NGK
    NGK Spark Plug Stock 2314 LZTR5AIX-13
    $9.19 USD
    $9.19 USD
    NGK Spark Plug Stock 2314 LZTR5AIX-13 is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. Thi...
  • NGK Spark Plug Stock # 1643 LKR7E
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 1643 LKR7E
    $10.49 USD
    $10.49 USD
    NGK Spark Plug Stock # 1643 LKR7E is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This li...
  • NGK Spark Plug Stock # 92274 LKAR7AHX-S
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 92274 LKAR7AHX-S
    $17.49 USD
    $17.49 USD
    NGK Spark Plug Stock # 92274 LKAR7AHX-S is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. T...
  • NGK Spark Plug Stock # 5018 LFR5AGP
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 5018 LFR5AGP
    $6.19 USD
    $6.19 USD
    NGK Spark Plug Stock # 5018 LFR5AGP is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This ...
  • NGK Spark Plug Stock # 1275 CR8E
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 1275 CR8E
    $9.99 USD
    $9.99 USD
    NGK Spark Plug Stock # 1275 CR8E is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This lis...
  • NGK Spark Plug Stock # 7411 CPR8E
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 7411 CPR8E
    $9.49 USD
    $9.49 USD
    NGK Spark Plug Stock # 7411 CPR8E is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This li...
  • NGK Spark Plug Stock # 1098 BR7HS-10
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 1098 BR7HS-10
    $3.99 USD
    $3.99 USD
    NGK Spark Plug Stock # 1098 BR7HS-10 is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This...
  • NGK Spark Plug - Each # 3522 BR6S
    Add to wishlist
    NGK
    NGK Spark Plug - Each # 3522 BR6S
    $3.69 USD
    $3.69 USD
    NGK Spark Plug - Each # 3522 BR6S is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This li...
  • NGK Spark Plug Stock # 2667 BKR7EIX
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 2667 BKR7EIX
    $9.99 USD
    $9.99 USD
    NGK Spark Plug Stock # 2667 BKR7EIX is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This ...
  • NGK Spark Plug Stock 7938 BKR5E
    Sold out
    Add to wishlist
    NGK
    NGK Spark Plug Stock 7938 BKR5E
    $3.49 USD
    $3.49 USD
    NGK Spark Plug Stock 7938 BKR5E is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This list...
  • NGK V-power Plugs 6630 UR4
    Sold out
    Add to wishlist
    NGK
    NGK V-power Plugs 6630 UR4
    $3.99 USD
    $3.99 USD
    NGK V-power Plugs 6630 UR4 is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This listing i...
  • NGK Spark Plug Stock # 94567 TR5AHX
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 94567 TR5AHX
    $13.49 USD
    $13.49 USD
    NGK Spark Plug Stock # 94567 TR5AHX is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This ...
  • NGK Spark Plug Stock #7164 TR55IX
    Add to wishlist
    NGK
    NGK Spark Plug Stock #7164 TR55IX
    $9.99 USD
    $9.99 USD
    NGK Spark Plug Stock #7164 TR55IX is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This li...
  • NGK V-power Racing Plug 3249 R5673-8
    Add to wishlist
    NGK
    NGK V-power Racing Plug 3249 R5673-8
    $6.49 USD
    $6.49 USD
    NGK V-power Racing Plug 3249 R5673-8 is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This...
  • NGK Spark Plug Stock # 1675 PFR7S8EG
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 1675 PFR7S8EG
    $15.99 USD
    $15.99 USD
    NGK Spark Plug Stock # 1675 PFR7S8EG is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This...
  • NGK Spark Plug Stock # 6799 LZKAR7A
    Add to wishlist
    NGK
    NGK Spark Plug Stock # 6799 LZKAR7A
    $7.99 USD
    $7.99 USD
    NGK Spark Plug Stock # 6799 LZKAR7A is a NGK spark plugs designed to support consistent ignition performance, dependable combustion, and proper service replacement on compatible applications. This ...

Showing 385 -400 of 558 items