2021 Toyota 4Runner Ignition and Tune-Up Products

Essential 2021 Toyota 4Runner Ignition and Tune-Up Products

DENSO – Iridium Long Life Spark Plug (Part No.F1000316471ND)

Iridium Long Life Spark Plug

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$16.00
The DENSO Iridium Long Life spark plug was specifically designed for long service life and consistent performance in the latest, most advanced production cars DENSO’s patented iridium alloy is more durable than even platinum, allowing the center electrode to be shrunk to only 0.7mm in diameter. This produces a dramatic improvement in ignitability and spark plug life. Closely related to platinum and exhibiting even tougher qualities, the rare metal iridium is an ideal material for spark plugs. A fine-wire, 0.7mm iridium center electrode is 360-degree laser welded in place using an exclusive DENSO process, and then matched to a platinum ground electrode. This pair of precision-formed, premium-metal electrodes dramatically extends the plug’s useful life.

Product Features:
  • Fine-wire iridium center electrode
  • Platinum ground electrode
  • 360 degree laser-welded spark tip
  • Sustained spark performance over 100,000 miles
  • Withstands higher pressures and temperatures
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Ishino – Stone Spark Plug Tube Seal (Part No.A802724573ISH)

Stone Spark Plug Tube Seal

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$7.56
ISHINO STONE® – Corteco Ishino Corporation of Japan – has been manufacturing gaskets since 1932 and tier-1 OEM supplier to Toyota, Honda and other Japanese auto manufacturers.

Product Features:
  • Superb quality and precision manufacturing process to ensure overall sealing dependability
  • Static sealing solutions are guaranteed to supply strong sealing power to eliminate any leakage
  • Manufactured to exact OEM specifications
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Felpro – SPARK PLUG TUBE SEAL SET (Part No.ES 72701)

SPARK PLUG TUBE SEAL SET

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$25.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Spark Plug Tube Seal Set (Part No.ES 73110)

Spark Plug Tube Seal Set

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$21.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Nippon Reinz – Spark Plug tube Seal (Part No.A8027168107NRZ)

Spark Plug tube Seal

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$4.49
Nippon Reinz Spark Plug tube Seal withstands high and low temperatures to provide a reliable seal with minimal tightening. Spark Plug tube Seals are increasingly produced with profiles and not flat; that is, the gasket surface is provided with beads or lips. Now, instead of the entire gasket surface, only the profile needs to be pressed, that is, the sealing bead or sealing lip, and just a slight amount of bolting force produces sufficient deformation and adaptation.

Product Features:
  • Stays cool at temperature up to 1800F
  • Designed to seal minor surface irregularities
  • No re-torque required
  • Teflon® coating optional
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Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1716)

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

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$40.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • 100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
  • Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure confidence and product reliability, every time.
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Mallory – Universal Street Performance Ignition Coil (Part No.29219)

Universal Street Performance Ignition Coil

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$76.99
Universal, 12-volt coil features an oil-filled design and arc resistant alkyd top for superior performance, insulation and cooling. The internal design of this coil eliminates the need for a separate ballast resistor. This coil is specifically designed to deliver optimum performance when used with: Mallory UNILITE or magnetic breaker less ignitions Mallory HYFIRE IV electronic ignition controls, and Mallory electronic ignition conversion kits.

Product Features:
  • 12 Volt Coil
  • Oil-Filled Design
  • Arch Resistant Alkyd Top
  • Designed To Deliver Optimum Performance
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Driveworks – Coil on Plug Coil (Part No.26391)

Coil on Plug Coil

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$59.05
Driveworks® offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:
  • Direct-fit OE replacement ensures ease of installation
  • Designed to meet OE performance
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
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NGK – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.48977)

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

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$142.99
NGK ignition coils are manufactured to meet or exceed OE standards for the highest durability and operational performance, so they can be installed with confidence. NGK and their family of automotive products have over 80 year’s experience and are driven by extreme dedication to innovation, performance and quality. Developed and rigorously tested in our ISO 17025 accredited test lab under the most extreme conditions, NGK’s coil designs will outperform all others – far beyond operational environments a vehicle would actually experience

Product Features:
  • OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
  • OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
  • EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
  • THE NGK DIFFERENCE: Featuring superior materials and design enhancements.
  • EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
  • PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils
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Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3674)

Ignition Knock (Detonation) Sensor

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$181.99
MotoRad Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
  • Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
  • Designed to meet or exceed all OEM specifications in fit, form & function
  • Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
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Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4133)

Ignition Knock (Detonation) Sensor

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$165.99
Advance Auto Parts is committed to providing high-quality ABS sensors. The entire manufacturing process is closely managed to deliver high quality products.

Product Features:
  • High grade materials that are equal to or better
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Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3696)

Ignition Knock (Detonation) Sensor

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$172.99
MotoRad Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
  • Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
  • Designed to meet or exceed all OEM specifications in fit, form & function
  • Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
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Carquest Premium – Knock Sensor (Part No.SBC3827)

Knock Sensor

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$68.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
  • Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
  • Designed to meet or exceed all OEM specifications in fit, form & function
  • Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
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Champion – Champion Copper Plus- Single Card – RC12YC (Part No.71-1)

Champion Copper Plus- Single Card - RC12YC

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$4.99
Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

Product Features:
  • Copper Plus – Dependable Performance.
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
  • Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
  • Built to ISO and SAE standards for proven performance
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Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP5503)

Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life

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$6.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:
  • Works to optimize engine performance for a longer life and improved fuel economy
  • OE design
  • Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
  • Platinum ball welding process provides a consistent point of contact for enhanced adhesion
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Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement REC10PYPB4 (Part No.7975)

Double Platinum & Power Spark Plug Exceptional Perf OE Replacement REC10PYPB4

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$7.99
Champion® Double Platinum Power¿ spark plugs deliver more powerful performance. Featuring exclusive Heat-Active¿ alloy, platinum fine wire center electrode and platinum pad ground electrode provide maximum life and sharper spark focus.

Product Features:
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
  • Platinum center and ground electrode for greater wear resistance
  • Maintains stable operating temperature under all engine loads
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active┐ alloy allows electrodes to reach optimal temperature
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Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.3923)

Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration

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$3.49
Autolite Copper spark plugs deliver quick starts, good fuel economy and smooth acceleration.

Product Features:
  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
  • Multi-rib insulator reduces danger of “flash-over”
  • One-piece terminal post adds strength
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IK16TT (Part No.4701)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IK16TT

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$10.99
Durability of an OE style plug combined with Power & Torque of high performance.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power & Torque of high performance.
  • Withstands temperatures greater than 4000┬░ Fahrenheit
  • Iridium TT
  • Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
  • Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
  • Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
  • Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.
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Carquest Premium – Ignition Switch (Part No.CSC1663)

Ignition Switch

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$32.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Ignition Switch (Part No.CSA1597)

Ignition Switch

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$37.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Ignition Starter Switch (Part No.989-719)

Ignition Starter Switch

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$111.99
This replacement ignition switch is a direct replacement for a damaged or worn-out original equipment switch Made of quality materials for durability, this part has been tested to ensure a proper fit.

Product Features:
  • Ideal replacement – this ignition switch matches the fit and function of the original equipment switch to restore proper operation to the ignition circuit
  • Durable construction – this ignition switch is made of quality materials to ensure reliable performance and a long service life
  • Cost-effective solution – offers original equipment performance at competitive price
  • Quality tested – this part has undergone try-on testing to ensure a quality fit
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Carquest Premium – Ignition Switch (Part No.CSA1665)

Ignition Switch

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$41.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Vemo – Ignition Switch (Part No.M5050178870VMO)

Ignition Switch

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$74.41
Ignition Switch

Idemitsu – Power Steering Fluid – 12 oz (Part No.30102-052A)

Power Steering Fluid - 12 oz

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$6.29
IDEMITSU Premium PSF is specifically engineered to meet the demanding performance requirements of Honda and Acura power steering units. This advanced technology fluid is formulated with premium quality base oils and the latest additive technologies to provide outstanding protection and performance under the most servere environmental and driving conditions.IDEMITSU Premium PSF can also be used in most Asian Original Equipment Manufacturer (OEM) power steering units that do not utilize electronic power steering technology.

Product Features:
  • Unique friction technology provides efficient and noise-free operation
  • Advanced formulation technology provides outstanding protection to the entire power steering system while delivering smooth performance under the most severe operating conditions
  • Superior low temperature performance for easy flow and protection against cavitation and elimination of “squawking” and “squealing”
  • Excellent compatibility with seals, gaskets and internal components to reduce the potential for leaks and ensures smooth performance over extended intervals
  • Robust anti-wear and inhibitor chemistry provides enhanced component and fluid durability and long-life
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Suncore – Shock Absorber (Part No.12S254010)

Shock Absorber

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$39.99
Shock Absorber

2021 Toyota 4Runner Ignition and Tune-Up Products

You count on your 2021 Toyota 4Runner to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Ignition and Tune-Up Products. With 29 Ignition and Tune-Up Products ranging in price from $2.29 to $326.99, you’re sure to find everything you need for your 2021 Toyota 4Runner.

Brands matter. If you want to shop a specific Ignition and Tune-Up Products brand, we stock 13 different brands like Autolite, NGK, and DENSO. 2021 Toyota 4Runner Ignition and Tune-Up Products start as low as $2.29!

One of the best ways to find top quality OEM or aftermarket Ignition and Tune-Up Products is by asking professionals. Short of that, you can shop with confidence thanks to our 3,048 extensive product reviews on 2021 Toyota 4Runner Ignition and Tune-Up Products. Some of the top-rated Ignition and Tune-Up Products products we carry are Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, SK16HR11 with 4.9 stars and Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IKH16TT with 4.7 stars.

Did we mention you can order your Ignition and Tune-Up Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Ignition and Tune-Up Products inventory for your 2021 Toyota 4Runner below to get started!

Top-Rated Ignition and Tune-Up Products Brands For Your 2021 Toyota 4Runner

Trusted Ignition and Tune-Up Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2021 Toyota 4Runner running right for years to come. In our inventory you’ll find brands like Autolite, NGK, DENSO, and even more.

Popular Champion Ignition and Tune-Up Products

You’ll find popular Champion brand products across Spark Plugs. All are waiting to get your 2021 Toyota 4Runner back on the road. Some of the top-rated Champion products in these categories are:

Top-Rated Autolite Ignition and Tune-Up Products


If Autolite are what you’re looking for, our inventory holds plenty. We stock Autolite brand Ignition and Tune-Up Products for your 2021 Toyota 4Runner, and some of our most reviewed Autolite parts include:

FAQs for 2021 Toyota 4Runner Ignition and Tune-Up Products

What are the most purchased Ignition and Tune-Up Products for the 2021 Toyota 4Runner?

Out of 29 Ignition and Tune-Up Products for the 2021 Toyota 4Runner, the most popular in our inventory are:
NGK Iridium IX Spark Plug
from $12.99
(105)
NGK Iridium IX Spark Plug
Spark Plugs

What are the top-rated 2021 Toyota 4Runner Ignition and Tune-Up Products?

Top-rated Ignition and Tune-Up Products for your 2021 Toyota 4Runner based on customer reviews/ratings are:
Iridium Long-Life Spark Plug:  OE Performance, last 100K+ Miles, SK16HR11
from $11.49
(68)
Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, SK16HR11
“Replaced the original plugs in my 2012Camry”
Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH16
from $11.79
(32)
Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH16
“Perfect plugs…less $$ than NGK, Gap was right out of the box. Gas Mileage was in the mid 20’s with leaking NGK..replaced with these plugs 32.3 avg o”