Please, select the appropriate vehicle to verify whether it is suitable
HELLA 8EH 188 706-421 Spark plug M14 x 1.25, Spanner Size: 16 mm
- The HELLA Iridium Pro Spark plugs feature a Platinum pad on the ground electrode providing an increased durability and preventing deposits for a long-lasting performance.
- The oriented ground electrode in HELLA spark plugs ensures optimal spark positioning, improving ignition and enhancing fuel-air combustion efficiency.
- Designed for durability, HELLA spark plugs offer a Llife span period up to 100.000 Km
- Checking & Maintenance: Regular spark plug checks and replacements help prolong the life of ignition coils and maintain peak engine performance.
- Follow the recommended Tightening Torque: 25Nm for secure mounting. Always refer to the tightening force instructions on the packaging.
- Spark Plug: 1 - Earthed Electrode
- Electrode Gap [mm]: 1,3
- Spanner Size: 16 mm
- Thread Length [mm]: 17,5
- Thread Size: M14 x 1.25
- Tightening Torque [Nm]: 25
- Assy. / disassy. by qualified personnel required!
- Item number: 8EH 188 706-421
- Manufacturer: HELLA
- EAN number: 4082300510669
- Construction Year from: This characteristic varies depending on the car model.
- Condition: New
price incl. 20% VAT
excl. delivery costs
OE reference number(s) comparable with the original spare part number:
- OE L30318110 — MAZDA
- OE L3Y4-18-110 — MAZDA
- OE L84518110 — MAZDA
- OE L341-18-110 — MAZDA
- OE L813-18-110 — MAZDA
- OE ZZC018110 — MAZDA
- OE 13 15 691 — FORD
- OE 3S4J-12405-AB — FORD
- OE 3S4J-18344-AB — FORD
- OE 30777349 — VOLVO
- OE 3121 6525 — VOLVO
- OE 8694 749 — VOLVO
- OE 3121 6297 — VOLVO
- OE IS8RC-13P — HELLA

Fully equivalent products




HELLA: Technology with vision since 1899
As a company of the FORVIA Group, FORVIA HELLA delivers cutting-edge automotive lighting and electronic solutions, trusted by professionals and drivers around the world. With a broad product and service portfolio, the brand supports the spare parts and workshop business, as well as manufacturers of special vehicles.
Innovation, reliability, and German engineering excellence – all from a partner built for the demands of the professional market.
Spark plug Tutorial/Step by step guide for repair and replacement



Spark plug HELLA 8EH 188 706-421 compatible with the following popular cars
Car models | Ford Fiesta Mk5; Ford Focus Mk2; Ford Focus 2 da; Focus C-Max (DM2); Ford Transit Mk6 Van; Mazda 3 BK; Ford Mondeo Mk3; Ford Mondeo bwy; Mazda 6 gy; Ford Mondeo mk3 Saloon; Transit Mk6 Caja / Chasis (V347; V348); Mazda 6 GG Saloon; Mazda 6 GG; Mazda 3 Saloon; Ford Focus DB3; Mazda Tribute EP; Mazda 2 MPV |
Engines | ST150; 2.0 Flex; 2.0; 1.8; 2.3 16V CNG RWD; 2.3 16V LPG RWD; 2.3 16V RWD; 2.0 16V; 1.8 16V; 2.3; 2.3 GX; 2.3 AWD |
Engine power (horsepower) | 110-166 hp |
Power (kilowatts) | 81-122 kW |
Year of manufacture | 2000-2014 |
Manufacturer article number | IS8RC-13P |
OE part number(s) | L30318110, L3Y4-18-110, L84518110, L341-18-110, L813-18-110 |
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