Spark plug H7DC0 or H7dc – Mercedes M102 M103 engine

Description

Spark plug affordable alternative for the H7DC0 or H7dc – Mercedes M102 M103 engine

This spark plug is a high-quality and affordable replacement for the original Mercedes spark plug with the OEM number. A0031590603 / 0031590603. The spark plug offers reliable ignition, smooth engine operation, and a long service life, making it an excellent alternative to the original Mercedes part.

Suitable for Mercedes models

• Mercedes C123 230 CE

• Mercedes W123 200, 230 E
• Mercedes S123 200 T, 200 TE, 230 TE
• Mercedes C123 230 CE

• Mercedes W124 200, 200 E, 230 E
• Mercedes C124 230 CE
• Mercedes S124 200 T, 200 TE, 230 TE

• Mercedes W201 190, 190 E 1.8, 190 E 2.0, 190 E 2.3, 190 E 2.5-16, 190 E 2.5-16 Evolution and Evolution II

• Mercedes W126 260 SE, 300 SE, 300 SEL

• Mercedes W460 G-Class 230 GE
• Mercedes W463 G-Class 200 GE, 230 GE

• Mercedes T1 210 2.3

• Mercedes T2/LN1 510 2.3

Suitable for Mercedes engines

• M102
• M103

Specifications

1. Part: spark plug.
2. OEM number Mercedes: A0031590603 / 0031590603
3. Bosch H7DC0 or H7dc+ OEM number
4. Affordable alternative to the original Mercedes spark plug.
5. Suitable for M102 and M103 motors.
6. Ensures reliable ignition, smooth engine operation, and optimal combustion.
7. Suitable for the Mercedes models mentioned above.

Important

Always check new spark plugs for transport damage before installation. Dented packaging may indicate that the ceramic insulator part has sustained a hairline crack. Damaged ceramic can come loose during use and cause serious engine damage.

Always check the prescribed electrode gap before installation. Even new spark plugs may have a deviating electrode gap during transport or storage. If necessary, carefully adjust the gap according to Mercedes factory specifications.

For optimal performance, we recommend always replacing spark plugs as a complete engine set. Simultaneously check the condition of the spark plug wires, distributor cap, and distributor rotor to prevent voltage loss and ignition malfunctions.

Always check before purchase and installation whether the part is suitable and equivalent based on photos, description, and specifications; installed or used parts cannot be returned.