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Get the Best Priced Mercedes 420SEL Spark Plugs

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Mercedes 420SEL Replacement Spark Plugs Information


Search our online spark plugs catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Mercedes 420SEL Spark Plugs parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day. They are available for the following Mercedes 420SEL years: 1991, 1990, 1989, 1988, 1987, 1986, 91, 90, 89, 88, 87, 86. This part is also sometimes called Mercedes 420SEL Spark Plug. We stock spark plugs parts for most Mercedes models including C230, E320, ML320, ML350, S500, C240, E350, C280, 300E, S430, SLK230, C300, 190E, CLK320, 450SL, 380SL, SL500, ML430, 560SL, C320, S550, CLK430, E55 AMG, E500, S600, S320, R350, ML500, S420, 300SE, E430, GL450, 560SEL, 500SL, GLK350, 500SEL, E420, 300TE, CLK350 and 280SE.

We stock these Spark Plugs brands for the Mercedes 420SEL: Bosch, E3 Spark Plugs, NGK and AC Delco.


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Review Fitment Notes to Ensure Proper Fit

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(1 Reviews)
5 Stars
Bosch 7905
Spark Plug
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Our List Price: $3.18
(99) In Stock
Product SKU: 7905
Product Note: Nickel -- Gap 0.032 in
Features:
  • Heavy-duty yttrium enhanced nickel-copper center electrode ensures superior reliability and durability for up to 50% longer performance life vs. standard copper plugs
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - saving time
  • Angled, ribbed insulator design prevents misfire due to flash-over
  • Metal glass fused resistor maximizes interference suppression
  • Heavy-duty yttrium enhanced copper core center electrode ensures superior reliability and durability for 50% longer performance life vs. standard copper plugs. The tapered, v-profile nickel chromium ground electrode helps to improve starting in cold weather and increases fuel ignitability.
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1988 (88) Mercedes 420SEL 4.2L V8 


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(2 Reviews)
5 Stars
Bosch 4478
Spark Plug
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Our List Price: $7.18

Product SKU: 4478
Product Note: Platinum+4 -- Do Not Gap, Gap is Preset
Features:
  • Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
  • Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
  • Electrode gap is factory set to provide ease of installation - never requires adjustment
  • Never requires gapping,the electrode gap is factory-set and never requires adjustment
  • Provides ease of installation - never requires adjustment
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1987 (87) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(2 Reviews)
5 Stars
Bosch 4478
Spark Plug
Close
Loading Reviews...
Our List Price: $7.18

Product SKU: 4478
Product Note: Platinum+4 -- Do Not Gap, Gap is Preset
Features:
  • Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
  • Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
  • Electrode gap is factory set to provide ease of installation - never requires adjustment
  • Never requires gapping,the electrode gap is factory-set and never requires adjustment
  • Provides ease of installation - never requires adjustment
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1989 (89) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(1 Reviews)
5 Stars
Bosch W0133-1803344
Spark Plug
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Product List Price:
$4.95
Our List Price: $3.58
(99) In Stock
Product SKU: W0133-1803344
Product Note: Super Plus - W 8 DCO
Important Product Info: WR 8 DC+
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Fitment Information: Catalog: A
Vehicle
1991 (91) Mercedes 420SEL


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(1 Reviews)
5 Stars
E3 Spark Plugs E3.46
Spark Plug
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Our List Price: $8.18
(99) In Stock
Product SKU: E3.46
Product Note: Spark Plug
Features:
  • More Horsepower
  • Improved Fuel Efficiency
  • Reduced Engine Emissions
  • Longer Engine Life
  • Better Conductive Heat Transfer
  • Easier starts in all weather conditions
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1991 (91) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(1 Reviews)
5 Stars
Bosch 7905
Spark Plug
Close
Loading Reviews...
Our List Price: $3.18
(99) In Stock
Product SKU: 7905
Product Note: Nickel -- Gap 0.032 in
Features:
  • Heavy-duty yttrium enhanced nickel-copper center electrode ensures superior reliability and durability for up to 50% longer performance life vs. standard copper plugs
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - saving time
  • Angled, ribbed insulator design prevents misfire due to flash-over
  • Metal glass fused resistor maximizes interference suppression
  • Heavy-duty yttrium enhanced copper core center electrode ensures superior reliability and durability for 50% longer performance life vs. standard copper plugs. The tapered, v-profile nickel chromium ground electrode helps to improve starting in cold weather and increases fuel ignitability.
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1991 (91) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(1 Reviews)
5 Stars
Bosch 7905
Spark Plug
Close
Loading Reviews...
Our List Price: $3.18
(99) In Stock
Product SKU: 7905
Product Note: Nickel -- Gap 0.032 in
Features:
  • Heavy-duty yttrium enhanced nickel-copper center electrode ensures superior reliability and durability for up to 50% longer performance life vs. standard copper plugs
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - saving time
  • Angled, ribbed insulator design prevents misfire due to flash-over
  • Metal glass fused resistor maximizes interference suppression
  • Heavy-duty yttrium enhanced copper core center electrode ensures superior reliability and durability for 50% longer performance life vs. standard copper plugs. The tapered, v-profile nickel chromium ground electrode helps to improve starting in cold weather and increases fuel ignitability.
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1989 (89) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(1 Reviews)
5 Stars
Bosch W0133-1803344
Spark Plug
Close
Loading Reviews...
Product List Price:
$4.95
Our List Price: $3.58
(99) In Stock
Product SKU: W0133-1803344
Product Note: Super Plus - Production: -04/1988, W 8 DC
Important Product Info: WR 8 DC+
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Fitment Information: Catalog: A
Vehicle Production Range
1988 (88) Mercedes 420SEL To:04-00-88 


Click to Enlarge
(1 Reviews)
5 Stars
Bosch W0133-1803344
Spark Plug
Close
Loading Reviews...
Product List Price:
$4.95
Our List Price: $3.58
(99) In Stock
Product SKU: W0133-1803344
Product Note: Super Plus - W 8 DC
Important Product Info: WR 8 DC+
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Fitment Information: Catalog: A
Vehicle
1986 (86) Mercedes 420SEL


Click to Enlarge
(1 Reviews)
5 Stars
Bosch W0133-1803344
Spark Plug
Close
Loading Reviews...
Product List Price:
$4.95
Our List Price: $3.58
(99) In Stock
Product SKU: W0133-1803344
Product Note: Super Plus - W 8 DC
Important Product Info: WR 8 DC+
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Fitment Information: Catalog: A
Vehicle
1987 (87) Mercedes 420SEL


Click to Enlarge
(1 Reviews)
5 Stars
Bosch W0133-1803344
Spark Plug
Close
Loading Reviews...
Product List Price:
$4.95
Our List Price: $3.58
(99) In Stock
Product SKU: W0133-1803344
Product Note: Super Plus - Production: -04/1988, W 8 DC
Important Product Info: WR 8 DC+
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Fitment Information: Catalog: A
Vehicle Production Range
1989 (89) Mercedes 420SEL To:04-00-88 


Click to Enlarge
(Read reviews)
Our List Price: $9.18
(90) In Stock
Product SKU: 6597
Product Note: Iridium IX Spark Plug -- Gap 0.032"
Core Copper Core
Tip Iridium
Features:
  • NGK Iridium IX spark plugs are designed specifically for the performance enthusiast. Iridium IX spark plugs offer extreme ignitibility, improved throttle response and superior anti-fouling.
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1989 (89) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(1 Reviews)
5 Stars
E3 Spark Plugs E3.46
Spark Plug
Close
Loading Reviews...
Our List Price: $8.18
(99) In Stock
Product SKU: E3.46
Product Note: Spark Plug
Features:
  • More Horsepower
  • Improved Fuel Efficiency
  • Reduced Engine Emissions
  • Longer Engine Life
  • Better Conductive Heat Transfer
  • Easier starts in all weather conditions
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1988 (88) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(Read reviews)
Our List Price: $7.18
(1) In Stock
Product SKU: 4306
Product Note: Platinum+2 -- Do Not Gap, Gap is Preset
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1990 (90) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(2 Reviews)
5 Stars
Bosch 4478
Spark Plug
Close
Loading Reviews...
Our List Price: $7.18

Product SKU: 4478
Product Note: Platinum+4 -- Do Not Gap, Gap is Preset
Features:
  • Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
  • Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
  • Electrode gap is factory set to provide ease of installation - never requires adjustment
  • Never requires gapping,the electrode gap is factory-set and never requires adjustment
  • Provides ease of installation - never requires adjustment
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
1988 (88) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(Read reviews)
Our List Price: $7.98
(32) In Stock
Product SKU: 6597
Product Note: Iridium IX Spark Plug -- Gap 0.032"
Core Copper Core
Tip Iridium
Features:
  • NGK Iridium IX spark plugs are designed specifically for the performance enthusiast. Iridium IX spark plugs offer extreme ignitibility, improved throttle response and superior anti-fouling.
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: F
Vehicle Engine
1991 (91) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(Read reviews)
Our List Price: $3.73
(35) In Stock
Product SKU: 003 159 46 03
Product Note: Spark Plug - Bosch WR-8-DC+ (7905)
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: G
Vehicle
1991 (91) Mercedes 420SEL


Click to Enlarge
(1 Reviews)
5 Stars
NGK 7082
Spark Plug
Close
Loading Reviews...
Our List Price: $4.73
(99) In Stock
Product SKU: 7082
Product Note: G-Power Spark Plug -- Gap 0.032"
Core Copper Core
Tip Platinum
Features:
  • NGK G-Power Platinum spark plugs are an economical upgrade option from traditional spark plugs. Fine wire platinum center electrode provides excellent performance and fuel efficiency.
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: C
Vehicle Engine
1991 (91) Mercedes 420SEL 4.2L V8 


Click to Enlarge
(Read reviews)
Our List Price: $8.73
(24) In Stock
Product SKU: 41-802
Product Note: Professional Double Platinum -- New; Gap .032
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: T
Vehicle Engine
1991 (91) Mercedes 420SEL 4.2L V8 


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Some of our Customer Reviews
Very Satisfied
Reviewer: Fred Swedeberg

Excellent plug

1989 Mercedes 420SEL Spark Plug

Very Satisfied
Reviewer: German Automobile

all tune up parts were readily available, one stop shop

1989 Mercedes 420SEL Spark Plug

Very Satisfied
Reviewer: Just Excellent

Excellent, Highly recommend, I have been using Partsgeek for years for assorted vehicles and have never been disappointed.

Bob

1991 Mercedes 420SEL Spark Plug


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