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Mercedes W121 spark plugs iridium and platinum

Spark plugs for MERCEDES-BENZ SL (W121) models – high-quality and low prices
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Engine spark plug MERCEDES-BENZ SL Convertible (W121) 1955
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Engine spark plug for Mercedes W121 iridium and platinum, platinum and iridium – order online at unbeatable prices

Top sellers: Spark plug MERCEDES-BENZ SL (W121) buy online to reduce replacement cost

The most popular spare parts in the category Spark plugs suitable for MERCEDES-BENZ SL. Engine spark plugs suitable for MERCEDES-BENZ W121 SL: buy high-quality parts from leading brands

-48%
RIDEX 686S0194 genuine Mercedes W121 spark plugs cost
Reviews - 1
Parts Details
  • Product line: ULTRA
  • Spark Plug: 1 - Earthed Electrode, with gasket seat
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 21 mm
  • Thread Length [mm]: 19
  • Thread Size: M14x1,25
  • Connector type: SAE / M4
  • Tightening torque from [Nm]: 20
  • Tightening torque to [Nm]: 30
  • RIDEX: Spark plug
  • Item number: 686S0194
  • Condition: New
Details
RIDEX 686S0194 Spark plug M14x1,25, Spanner Size: 21 mm
Article number: 686S0194
compared to RRP €5.04

€2.59
Price per item
price incl. 23% VAT, excl. delivery costs
-47%
RIDEX 686S0310 genuine Mercedes W121 spark plugs cost
Reviews - 8
Parts Details
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 20,8
  • External Thread [mm]: 14
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Pitch [mm]: 1,25
  • Tightening Torque [Nm]: 28
  • Number of pins: 1
  • Tightening angle [degrees]: 90
  • RIDEX: Spark plug
  • Item number: 686S0310
  • Condition: New
Details
RIDEX 686S0310 Spark plug Spanner Size: 20,8
Article number: 686S0310
compared to RRP €15.22

€7.96
(Price per set)
€31.84 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-52%
RIDEX 686S0070 genuine Mercedes W121 spark plugs cost
Reviews - 12
Parts Details
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 20,8
  • External Thread [mm]: 14
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Pitch [mm]: 1,25
  • Tightening Torque [Nm]: 28
  • Number of pins: 1
  • RIDEX: Spark plug
  • Item number: 686S0070
  • Condition: New
Details
RIDEX 686S0070 Spark plug Spanner Size: 20,8
Article number: 686S0070
compared to RRP €25.39

€11.94
(Price per set)
€47.76 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
BOSCH 0 242 240 592 genuine Mercedes W121 spark plugs cost
Reviews - 54
Parts Details
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 20,8
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Size: M 14 x 1,25
  • Tightening Torque [Nm]: 28
  • Number of pins: 1
  • BOSCH: Spark plug
  • Item number: 0 242 240 592
  • Condition: New
Details
BOSCH +12 Spark plug M 14 x 1,25, Spanner Size: 20,8
Article number: 0 242 240 592
€3.59
Price per item
€14.36 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
NGK 5411 1959 Mercedes W121 spark plugs price
Reviews - 13
Parts Details
  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 4,5
  • Thread Size: M14 x 1,25
  • NGK: Spark plug
  • Item number: 5411
  • Condition: New
Details
NGK BP-2E Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 5411
€4.99
Price per item
€19.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-62%
CHAMPION CET8 1958 Mercedes W121 spark plugs price
Reviews - 8
Parts Details
  • Product line: Aerovantage Spoiler
  • Spark Plug: 1 - Earthed Electrode, with gasket seat
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 21 mm
  • Quality / Grade: Ti Poly-V
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: CET8
  • Resistor to [kOhm]: 10
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,85
  • Packaging width [cm]: 2,6
  • Packaging height [cm]: 2,35
  • Projection [mm]: 1,5
  • CHAMPION: Spark plug
  • Item number: CET8
  • Condition: New
Details
CHAMPION CET8 Spark plug CET8, M14x1.25, Spanner Size: 21 mm, Ti Poly-V
Article number: CET8
compared to RRP €12.19

€4.59
Price per item
€18.36 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
NGK 4055 1957 Mercedes W121 spark plugs price
Reviews - 4
Parts Details
  • Spark Plug: Unscrewable SAE connector, Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • NGK: Spark plug
  • Item number: 4055
  • Condition: New
Details
NGK BPR7EIX Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 4055
€13.99
Price per item
€55.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
NGK 6684 1956 Mercedes W121 spark plugs price
Reviews - 2
Parts Details
  • Spark Plug: Unscrewable SAE connector, Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • NGK: Spark plug
  • Item number: 6684
  • Condition: New
Details
NGK BPR8EIX Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 6684
€14.99
Price per item
€59.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
NGK 3355 Mercedes W121 engine spark plug
Parts Details
  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Supplementary Info: Quick
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • NGK: Spark plug
  • Item number: 3355
  • Condition: New
Details
NGK BP7ES Spark plug M14 x 1,25, Spanner Size: 20,8 mm, Quick
Article number: 3355
€3.59
Price per item
€7.18 / Price per 2 items
price incl. 23% VAT, excl. delivery costs
RIDEX PLUS 686S0137P Mercedes W121 spark plug
Parts Details
  • Product line: Iridium
  • Spark Plug: 1 - Earthed Electrode, Iridium Middle Electrode, Nickel mass electrode
  • Spanner Size: 20.6
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3,3
  • Thread Size: M14x1,25
  • Connector type: Solid SAE
  • Diameter: 14
  • Resistor [kOhm]: 6
  • Country Specific Design: Japan
  • RIDEX PLUS: Spark plug
  • Item number: 686S0137P
  • Condition: New
Details
RIDEX PLUS 686S0137P Spark plug M14x1,25, Spanner Size: 20.6
Article number: 686S0137P
€8.29
Price per item
€33.16 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
STARK SKSP-1990011 Mercedes W121 engine spark plugs
Reviews - 5
Parts Details
  • Spark Plug: 1 - Earthed Electrode
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 20,8
  • External Thread [mm]: 14
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Pitch [mm]: 1,25
  • Tightening Torque [Nm]: 28
  • Number of pins: 1
  • Tightening angle [degrees]: 90
  • STARK: Spark plug
  • Item number: SKSP-1990011
  • Condition: New
Details
STARK SKSP-1990011 Spark plug Spanner Size: 20,8
Article number: SKSP-1990011
€2.59
Price per item
price incl. 23% VAT, excl. delivery costs
STARK SKSP-19990308 Mercedes W121 spark plugs
Reviews - 3
Parts Details
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 20,8
  • External Thread [mm]: 14
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Pitch [mm]: 1,25
  • Tightening Torque [Nm]: 28
  • Number of pins: 1
  • Tightening angle [degrees]: 90
  • STARK: Spark plug
  • Item number: SKSP-19990308
  • Condition: New
Details
STARK SKSP-19990308 Spark plug Spanner Size: 20,8
Article number: SKSP-19990308
€7.96
(Price per set)
€31.84 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
STARK SKSP-1990136 1960 Mercedes W121 engine spark plug prices
Reviews - 3
Parts Details
  • Product line: Iridium TT
  • Spark Plug: 1 - Earthed Electrode, Iridium Middle Electrode
  • Spanner Size: 20.6
  • Thread Length [mm]: 19
  • Thread Size: M14x1.25
  • Tightening Torque [Nm]: 22
  • Diameter: 14
  • STARK: Spark plug
  • Item number: SKSP-1990136
  • Condition: New
Details
STARK SKSP-1990136 Spark plug M14x1.25, Spanner Size: 20.6
Article number: SKSP-1990136
€10.49
Price per item
price incl. 23% VAT, excl. delivery costs
-37%
CHAMPION CCH9804 1959 Mercedes W121 spark plug prices
Reviews - 2
Parts Details
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Iridium Middle Electrode
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 21 mm
  • Quality / Grade: Pt GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Packing Type: Box
  • Technical Information Number: RN8WYPB3
  • Resistor to [kOhm]: 10
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 10
  • Packaging width [cm]: 2,5
  • Packaging height [cm]: 2,5
  • Projection [mm]: 1,5
  • CHAMPION: Spark plug
  • Item number: CCH9804
  • Condition: New
Details
CHAMPION 9804 Spark plug RN8WYPB3, M14x1.25, Spanner Size: 21 mm, Pt GE
Article number: CCH9804
compared to RRP €28.67

€17.99
Price per item
€71.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-22%
DENSO W9EP 1958 Mercedes W121 engine spark plugs prices
Reviews - 1
Parts Details
  • Product line: Nickel
  • Spark Plug: 1 - Earthed Electrode, Nickel Middle Electrode
  • Spanner Size: 20.6 mm
  • Thread Length [mm]: 19
  • Thread Size: M14x1.25
  • Connector type: Removable SAE
  • Tightening Torque [Nm]: 22
  • Diameter: 14
  • Weight [g]: 56
  • for OE number: 9993410685100
  • alternative item: -
  • DENSO: Spark plug
  • Item number: W9EP
  • Condition: New
Details
DENSO 6005 Spark plug M14x1.25, Spanner Size: 20.6 mm
Article number: W9EP
compared to RRP €4.26

€3.29
Price per item
€13.16 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-19%
DENSO W20EP-U 1957 Mercedes W121 spark plugs prices
Reviews - 3
Parts Details
  • Product line: Nickel
  • Spark Plug: 1 - Earthed Electrode, Nickel Middle Electrode
  • Spanner Size: 20.6 mm
  • Thread Length [mm]: 19
  • Thread Size: M14x1.25
  • Connector type: Removable SAE
  • Tightening Torque [Nm]: 22
  • Diameter: 14
  • Weight [g]: 56
  • for OE number: 09482-00392
  • alternative item: W20TT
  • DENSO: Spark plug
  • Item number: W20EP-U
  • Condition: New
Details
DENSO 3043 Spark plug M14x1.25, Spanner Size: 20.6 mm
Article number: W20EP-U
compared to RRP €3.73

€2.99
Price per item
€11.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-44%
DENSO IW20TT 1956 MERCEDES-BENZ SL Convertible (W121) spark plug prices
Reviews - 13
Parts Details
  • Product line: Iridium TT
  • Spark Plug: with resistor, 1 - Earthed Electrode, Iridium Middle Electrode, Platinum mass electrode
  • Thread Length [mm]: 19
  • Thread Size: M14x1.25
  • Diameter: 14
  • Gross Weight [g]: 61
  • alternative item: IW20TT
  • DENSO: Spark plug
  • Item number: IW20TT
  • Condition: New
Details
DENSO 4709 Spark plug M14x1.25,
Article number: IW20TT
compared to RRP €24.38

€13.49
Price per item
€53.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-12%
DENSO W20TT 1955 Mercedes W121 engine spark plugs prices
Reviews - 14
Parts Details
  • Product line: Nickel TT
  • Spark Plug: 1 - Earthed Electrode, Nickel Middle Electrode
  • Spanner Size: 20.6 mm
  • Thread Length [mm]: 19
  • Thread Size: M14x1.25
  • Connector type: Crimped SAE
  • Tightening Torque [Nm]: 22
  • Diameter: 14
  • Weight [g]: 58
  • alternative item: IW20, IW20TT, IW20
  • DENSO: Spark plug
  • Item number: W20TT
  • Condition: New
Details
DENSO 4602 Spark plug M14x1.25, Spanner Size: 20.6 mm
Article number: W20TT
compared to RRP €6.37

€5.59
Price per item
€22.36 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
-48%
CHAMPION OE001/T10 1963 MERCEDES-BENZ SL (W121) spark plug set prices
Reviews - 15
Parts Details
  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: N9YC
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Projection [mm]: 1,5
  • CHAMPION: Spark plug
  • Item number: OE001/T10
  • Condition: New
Details
CHAMPION N9YC Spark plug N9YC, M14x1.25, Spanner Size: 21 mm, Nickel GE
Article number: OE001/T10
compared to RRP €5.83

€2.99
Price per item
€11.96 / Price per 4 items
price incl. 23% VAT, excl. delivery costs
NGK 2412 1962 MERCEDES-BENZ SL Convertible (W121) spark plugs prices
Reviews - 16
Parts Details
  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • NGK: Spark plug
  • Item number: 2412
  • Condition: New
Details
NGK BP7ES Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 2412
€3.59
Price per item
€14.36 / Price per 4 items
price incl. 23% VAT, excl. delivery costs

Buy engine spark plug MERCEDES-BENZ SL Convertible (W121) models

Mercedes W121 190
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Spark plugs for MERCEDES-BENZ SL Convertible (W121): what brand is best?

Customer ratings show that the preferred brands for product category Spark plugs for MERCEDES-BENZ SL Convertible (W121) are:

  • NGK
  • BOSCH
  • RIDEX
  • DENSO
  • CHAMPION

Spark plugs for MERCEDES-BENZ SL Convertible (W121): what price can I expect to pay?

The cost of car parts and accessories within the category Spark plugs for MERCEDES-BENZ SL Convertible (W121) goes from around €2.00 up to €18.00, depending on the brand and product specifications.

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