Mercedes-Benz 400SEL Spark Plugs

Your One-Stop Shop For Trusted Mercedes-Benz 400SEL Spark Plugs

If you’re in search of Mercedes-Benz 400SEL Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 20 Spark Plugs from top brands with prices ranging from $3.49 to $12.20.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Mercedes-Benz 400SEL. Of the 10 OEM and aftermarket parts brands we carry, some of the most popular are Champion, E3, and NGK.

And don’t forget to read customer reviews across all Spark Plugs categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Spark Plugs have to cost top dollar, and we prove it. Browse our top Mercedes-Benz 400SEL Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Mercedes-Benz 400SEL Spark Plugs

NGK – G-Power Spark Plug: Single Platinum Tip Design, BKR5EGP (Part No.7090)

G-Power Spark Plug: Single Platinum Tip Design, BKR5EGP

from

$6.29
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Product Features:
  • SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
  • PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
  • TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
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Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3926)

Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition

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$8.99
Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:
  • 0.6 mm finewire design improves ignitability
  • Patented V-trimmed platinum sidewire technology resists wear
  • OE equivalent design is engineered for every engine
  • Designed for better overall durability with virtually no gap erosion
  • Double Iridium-Enhanced Alloy Technology Center Electrode: Improves durability and wear resistance for a longer-lasting spark plug.
  • Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.
  • Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.
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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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NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, BKR5E (Part No.7938)

OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, BKR5E

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$4.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
  • NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
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Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.3926)

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

from

$3.49
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite continues to set the standard in spark plug technology. Designed and engineered in the USA, these spark plugs feature a copper-glass seal that bonds the insulator, terminal post, and center electrode together, ensuring full voltage at the spark gap with a 100% leak-proof, gas-tight seal. The multi-rib insulator minimizes the risk of flash-over, while the one-piece terminal post adds strength and durability. Additionally, the built-in resistor reduces radio frequency interference (RFI) and electrode erosion, making these spark plugs a reliable choice for enhancing your vehicle’s performance.

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
  • Quick Starts and Smooth Acceleration: Designed to deliver quick starts and smooth acceleration, enhancing your vehicle’s overall performance.
  • Good Fuel Economy: Engineered to provide good fuel economy, helping you save on fuel costs.
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Bosch – Super Plus (Copper Core) Spark Plug (Part No.F1000298680BOS)

Super Plus (Copper Core) Spark Plug

from

$4.37
The Bosch Super Plus Spark Plug utilizes an yttrium enhanced copper core center electrode, making it one of the longest lasting copper core spark plug on the market – by 50% versus even OE plugs. Bosch Super Plus also features a tapered, v-profile ground electrode for improved cold starts and better fuel ignitability. Center Electrode Core Material: Nickel-Yttrium and Copper – Center Electrode Tip Material: Nickel-Yttrium – Ground Electrode Tip Material: Nickel-Chromium

Product Features:
  • OE-Equivalent and direct fit application.
  • Heavy-duty yttrium-enhanced copper core center electrode.
  • Tapered, v-profile nickel chromium ground electrode.
  • Nickel-plated rolled threads.
  • Metal glass fused resistor.
  • Angular, five-ribbed insulator design.
  • Electrode gap is factory set and never requires adjustment.
  • Anti-seize and corrosion protection. Bosch Super Plus Spark Plugs deliver quality performance based on technology that’s proven on racetracks around the world in the most sophisticated racing engines
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IQ16TT (Part No.4706)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IQ16TT

from

$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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Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RC12PYC (Part No.3071)

Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RC12PYC

from

$4.79
Champion® Platinum Power spark plugs deliver powerful performance with their premium design. Featuring a platinum center electrode for long life and a fine-wire center electrode for greater ignitability, these spark plugs ensure optimal engine performance. The V-trimmed ground electrode promotes sharper spark focus, while the exclusive Heat-Active alloy allows the electrodes to reach optimal temperature. Additionally, the platinum-tipped center wire resists wear and helps maintain the proper gap specification throughout the life of the plug, making it a reliable choice for your vehicle.

Product Features:
  • Platinum Power- Premium Spark Plug. Powerful Performance.
  • Platinum center electrode for long life
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
  • Platinum Center Electrode: The Champion Platinum Power Spark Plug features a platinum center electrode for extended durability and long-lasting performance.
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Beru – Ignition Wire (Part No.F1030380899BER)

Ignition Wire

from

$12.20
Ignition Wire

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach

from

$9.99
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
  • Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
  • Durable construction – made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Spark Plugs Brands You Can Trust For Your Mercedes-Benz 400SEL

10 trusted brands of Spark Plugs line our shelves, ready to help keep your Mercedes-Benz 400SEL running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

Popular ACDelco Spark Plugs

ACDelco products for the Mercedes-Benz 400SEL span several categories. Some of the highest-rated ACDelco Spark Plugs that will fit your Mercedes-Benz 400SEL are:
Double Platinum Spark Plug
from $9.79
(1)
Double Platinum Spark Plug
Spark Plugs

Most Purchased Mercedes-Benz 400SEL Spark Plugs from E3

When you buy the most frequently purchased E3 brand Spark Plugs, you can be confident it will be the right part for your Mercedes-Benz 400SEL. Here are the E3 Spark Plugs Advanced Auto customers buy the most:

FAQs for Mercedes-Benz 400SEL Spark Plugs

What are the most purchased Spark Plugs for the Mercedes-Benz 400SEL?

Out of 20 Spark Plugs for the Mercedes-Benz 400SEL, the most popular in our inventory are:

What are the top-rated Mercedes-Benz 400SEL Spark Plugs?

Top-rated Spark Plugs for your Mercedes-Benz 400SEL based on customer reviews/ratings are:
Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration
from $3.49
(20)
Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration
“Updated plug new coating, grea value”
Iridium IX Spark Plug: Single Iridium Fine Wire, BKR5EIX
from $11.99
(12)
Iridium IX Spark Plug: Single Iridium Fine Wire, BKR5EIX
“Perfect fit for my 2008 Outlander. I changed the original plugs at 140,000. Easy install too! Saved ton of money DIY. These plugs will go about 50”
OE Series Standard Nickel Spark Plug: Conventional Tip Design, BKR5ES
from $4.99
(10)
OE Series Standard Nickel Spark Plug: Conventional Tip Design, BKR5ES
“I have nicknamed it “Sparky.””