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Spark plug Mercedes W121 iridium and platinum

Spark plug for MERCEDES-BENZ SL (W121) – top quality at low prices
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Buy iridium and platinum Engine spark plug MERCEDES-BENZ SL (W121)

Engine spark plug for Mercedes W121 iridium and platinum, platinum and iridium — save more with exclusive deals

Most popular products: Spark plug the MERCEDES-BENZ SL (W121) buy online to reduce replacement cost

Top-selling parts for the MERCEDES-BENZ SL in the category Spark plug. Choose a high-quality part from the Engine spark plugs section for your MERCEDES-BENZ W121 SL

-43%
RIDEX 686S0194 genuine Mercedes W121 spark plug 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 4,60 €

2,59 €
Price per item
price incl. 19% VAT, excl. delivery costs
-44%
RIDEX 686S0012 genuine Mercedes W121 spark plug cost
Reviews - 22
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
  • RIDEX: Spark plug
  • Item number: 686S0012
  • Condition: New
Details
RIDEX 686S0012 Spark plug Spanner Size: 20,8
Article number: 686S0012
compared to RRP 4,70 €

2,59 €
Price per item
price incl. 19% VAT, excl. delivery costs
-53%
RIDEX 686S0310 genuine Mercedes W121 spark plug 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 17,10 €

7,96 €
(Price per set)
31,84 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-55%
RIDEX 686S0070 genuine Mercedes W121 spark plug 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 27,00 €

11,94 €
(Price per set)
47,76 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-9%
DENSO W20TT 1959 Mercedes W121 spark plug price
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 6,16 €

5,59 €
Price per item
22,36 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-42%
DENSO IW20TT 1958 Mercedes W121 spark plug price
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 23,59 €

13,49 €
Price per item
53,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-17%
DENSO W20EP-U 1957 Mercedes W121 spark plug price
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 D4 Spark plug M14x1.25, Spanner Size: 20.6 mm
Article number: W20EP-U
compared to RRP 3,61 €

2,99 €
Price per item
11,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-20%
DENSO W9EP 1956 Mercedes W121 spark plug price
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 4,12 €

3,29 €
Price per item
13,16 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-5%
CHAMPION CCH9804 Mercedes W121 engine spark plug
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 19,61 €

18,49 €
Price per item
73,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-52%
STARK SKSP-1990136 Mercedes W121 spark plug
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
compared to RRP 22,30 €

10,49 €
Price per item
price incl. 19% VAT, excl. delivery costs
RIDEX PLUS 686S0137P Mercedes W121 engine spark plugs
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
11,99 €
Price per item
47,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-41%
STARK SKSP-1990011 Mercedes W121 spark plug
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
compared to RRP 4,40 €

2,59 €
Price per item
price incl. 19% VAT, excl. delivery costs
-50%
STARK SKSP-19990308 1960 Mercedes W121 engine spark plug prices
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
compared to RRP 16,20 €

7,96 €
(Price per set)
31,84 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-39%
NGK 3355 1959 Mercedes W121 spark plug prices
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
compared to RRP 5,95 €

3,59 €
Price per item
7,18 € / Price per 2 items
price incl. 19% VAT, excl. delivery costs
-44%
NGK 6684 1958 Mercedes W121 engine spark plugs prices
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
compared to RRP 26,78 €

14,99 €
Price per item
59,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-34%
NGK 4055 1957 Mercedes W121 spark plug prices
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
compared to RRP 21,24 €

13,99 €
Price per item
55,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-48%
CHAMPION CET8 1956 MERCEDES-BENZ SL Convertible (W121) spark plug prices
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 8,85 €

4,59 €
Price per item
18,36 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-15%
NGK 5411 1955 Mercedes W121 engine spark plugs prices
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
compared to RRP 5,89 €

4,99 €
Price per item
19,96 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-39%
NGK 2412 1963 MERCEDES-BENZ SL (W121) spark plug set 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
compared to RRP 5,95 €

3,59 €
Price per item
14,36 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs
-42%
BERU UPT8 1962 MERCEDES-BENZ SL Convertible (W121) spark plug prices
Reviews - 25
Parts Details
  • Spark Plug: 1 - Earthed Electrode, with gasket seat
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 21 mm
  • Quality / Grade: Poly-V Tit
  • Supplementary Info: ULTRA TITAN
  • Thread Length [mm]: 19
  • Thread Size: M14x1,25
  • Connector type: SAE / M4
  • Tightening torque from [Nm]: 20
  • Tightening torque to [Nm]: 30
  • Resistor from [kOhm]: 3
  • Resistor to [kOhm]: 10
  • BERU: Spark plug
  • Item number: UPT8
  • Condition: New
Details
BERU UPT8 Spark plug M14x1,25, Spanner Size: 21 mm, Poly-V Tit, ULTRA TITAN
Article number: UPT8
compared to RRP 9,74 €

5,59 €
Price per item
22,36 € / Price per 4 items
price incl. 19% VAT, excl. delivery costs

Engine spark plug: parts for the most common versions of the MERCEDES-BENZ SL Convertible (W121)

Mercedes W121 190
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Safe Order 200 days for Mercedes W121 platinum and iridium Spark plug
Safe Order 200 days
Safe Order 200 days

Confidence in online shopping! You can return Mercedes W121 spark plug without explanation within 200 days after purchase and get your money back. How? Just use the Safe Order service on the checkout page. The service cost is only 2,99 €.

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