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2020 Mercedes Benz SLC300 Base Convertible 172.438 L4 2.0L

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Your Vehicle 2020 Mercedes Benz SLC300 Base Convertible 172.438 L4 2.0L
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2020 Mercedes Benz SLC300 Base Convertible 172.438 L4 2.0L Ignition Maintenance Parts

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Extended Spark Plug Socket - 14mm

ES#3553262 - CTA7654 - Extended Spark Plug Socket - 14mm - Swivel offers many options. Applicable to Mercedes M152, M157, M177, M178, M270, M274, M276 and M278 engines. - CTA Tools - BMW Mercedes Benz MINI

Swivel offers many options. Applicable to Mercedes M152, M157, M177, M178, M270, M274, M276 and M278 engines. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
3553262
Mfg#:
CTA7654
In Stock
$35.72 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Combination Feeler Gauge/Spark Plug Gapping Tool

ES#3617897 - KDT164 - Combination Feeler Gauge/Spark Plug Gapping Tool - Measure and correctly adjust the gap of your spark plugs - Gear Wrench - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Measure and correctly adjust the gap of your spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Gear Wrench - Corporate Logo
ES#:
3617897
Mfg#:
KDT164
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil With Spark Plug Connector - Priced Each

ES#4933242 - 270906050064 - Ignition Coil With Spark Plug Connector - Priced Each - Keep your engine running smooth - Bosch - Mercedes Benz

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For cars with Bosch Ignition Coils (Code 188).

Brand:
Bosch - Corporate Logo
ES#:
4933242
Mfg#:
270906050064
In Stock
$61.99

This product was last offered at the strikethrough price on
03-16-2026

$55.99 USD
Free Shipping
on orders $49 and up

Spark Plugs - Set Of Four

ES#3690321 - 2701590700KT - Spark Plugs - Set Of Four - Ensure proper spark and avoid misfires - Genuine Mercedes Benz - Mercedes Benz

Ensure proper spark and avoid misfires affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3690321
Mfg#:
2701590700KT
In Stock
$110.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil With Spark Plug Connector - Set Of 4

ES#4934739 - 270906050064KT1 - Ignition Coil With Spark Plug Connector - Set Of 4 - Keep your engine running smooth - Bosch - Mercedes Benz

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For cars with Bosch Ignition Coils (Code 188).

Brand:
Bosch - Corporate Logo
ES#:
4934739
Mfg#:
270906050064KT1
In Stock
$247.99

This product was last offered at the strikethrough price on
03-16-2026

$223.99 USD
Free Shipping
on orders $49 and up

Titan Swivel Spark Plug Socket Extension

ES#4352826 - TIT62161 - Titan Swivel Spark Plug Socket Extension - Knurled shaft for better grip - Titan - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Knurled shaft for better grip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Titan - Corporate Logo
ES#:
4352826
Mfg#:
TIT62161
In Stock
$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug Gapper

ES#4336973 - CTA3235 - Spark Plug Gapper - Always check gap on your new spark plugs - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Always check gap on your new spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4336973
Mfg#:
CTA3235
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Four

ES#4745128 - 27015907000KT - Spark Plugs - Set Of Four - Ensure proper spark and avoid misfires. OEM Supplier! - NGK - Mercedes Benz

Ensure proper spark and avoid misfires. OEM Supplier! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
4745128
Mfg#:
27015907000KT
In Stock at Vendor
$123.99

This product was last offered at the strikethrough price on
01-16-2026

$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Priced Each

ES#3637380 - 2701590700 - Spark Plug - Priced Each - Genuine Mercedes-Benz Replacement Part - Ensure proper spark and avoid misfires - Genuine Mercedes Benz - Mercedes Benz

Genuine Mercedes-Benz Replacement Part - Ensure proper spark and avoid misfires affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3637380
Mfg#:
2701590700
In Stock
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$28.50

This product was last offered at the strikethrough price on
01-06-2026

$27.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil With Spark Plug Connector - Set Of Four

ES#4745123 - 2749065000KT - Ignition Coil With Spark Plug Connector - Set Of Four - Restore proper engine operation - Genuine Mercedes Benz - Mercedes Benz

Restore proper engine operation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4745123
Mfg#:
2749065000KT
Ships in 3 Business Days
$458.99

This product was last offered at the strikethrough price on
01-06-2026

$426.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#4934747 - 270906050064KT3 - Ignition Service Kit - Set of 4 spark plugs and ignition coils for Mercedes M270 & M274 engines - Assembled By ECS - Mercedes Benz

Set of 4 spark plugs and ignition coils for Mercedes M270 & M274 engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For cars with Bosch Ignition Coils (Code 188).

Brand:
Assembled By ECS - Corporate Logo
ES#:
4934747
Mfg#:
270906050064KT3
In Stock
$367.99

This product was last offered at the strikethrough price on
01-08-2026

$334.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Ignition Coil With Spark Plug Connector - Priced Each

Restore proper engine operation. OEM Supplier! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Delphi - Corporate Logo
ES#:
4745121
Mfg#:
2749065000
In Stock at Vendor
$78.99

This product was last offered at the strikethrough price on
04-16-2026

$69.99 USD
Free Shipping
on orders $49 and up

Ignition Coil With Spark Plug Connector - Set Of Four

ES#4745126 - 2749065000KT3 - Ignition Coil With Spark Plug Connector - Set Of Four - Restore proper engine operation. OEM Supplier! - Delphi - Mercedes Benz

Restore proper engine operation. OEM Supplier! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Delphi - Corporate Logo
ES#:
4745126
Mfg#:
2749065000KT3
In Stock at Vendor
$314.99

This product was last offered at the strikethrough price on
04-16-2026

$278.99 USD
Free Shipping
on orders $49 and up

9-Wire Spark Plug Gap Gauge

ES#4336975 - CTA3238 - 9-Wire Spark Plug Gap Gauge - Always check gap on your new spark plugs - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Always check gap on your new spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4336975
Mfg#:
CTA3238
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Extended Spark Plug Socket

ES#3008984 - SUU884506 - Extended Spark Plug Socket - 3/8" drive socket with 5/8" opening for most spark plugs - Sunex - Audi BMW Volkswagen Mercedes Benz MINI Porsche

3/8" drive socket with 5/8" opening for most spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Sunex - Corporate Logo
ES#:
3008984
Mfg#:
SUU884506
In Stock
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$31.99

This product was last offered at the strikethrough price on
06-10-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Priced Each

ES#4745127 - 2701590700 - Spark Plug - Priced Each - Ensure proper spark and avoid misfires. OEM Supplier! - NGK - Mercedes Benz

Ensure proper spark and avoid misfires. OEM Supplier! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
4745127
Mfg#:
2701590700
In Stock
$30.99

This product was last offered at the strikethrough price on
02-24-2026

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Ignition Maintenance Parts

A weak ignition system leaves power on the table and can be the cause of misfires, rough idle, unburned fuel, and more. Service your ignition system with spark plugs, coil packs, distributors, ignition wiring harnesses, and everything else all from the best OEM suppliers and aftermarket brands you know and love.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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