Description
Water pump coolant line for Mercedes W124 W201 W126 R107 R129 – M103 engine
Product description
This coolant line connects the water pump to the cooling system of the Mercedes M103 engine. The line ensures proper coolant flow and contributes to optimal engine cooling.
Due to age, the pipes and connections can corrode or start leaking. Replacement prevents coolant loss and helps prevent overheating and damage to the cooling system.
Suitable for Mercedes models
Mercedes W124 Sedan
• Models with M103 engine
• AMG 3.0
• AMG 3.2
• Brabus 3.6
Mercedes S124 T-Model
• Models with M103 engine
• AMG 3.0
• AMG 3.2
• Brabus 3.6
Mercedes W201
• 190 E 2.6 with M103 engine
• AMG 3.2
• Brabus 3.6
Mercedes W126 S-Class
• Models with M103 engine
• Brabus 3.6
Mercedes R107 SL
• 300 SL with M103 engine
• AMG 3.2
• Brabus 3.6
Mercedes R129 SL
• 300 SL with M103 engine
• Brabus 3.6
Suitable for Mercedes engines
• M103
• AMG versions based on the M103 engine
• Brabus 3.6 versions based on the M103 engine
Specifications
- Part: water pump coolant line
- OEM number: 103 200 14 52
- Application: coolant line between water pump and cooling system
- Suitable for Mercedes M103 engines
- Original fit
- High quality
Additional information
- Ensures a reliable flow of the coolant.
- Prevents coolant loss due to corrosion or leakage of the original piping.
- When replacing, also check the O-rings, cooling hoses, hose clamps, and the water pump, and replace them if necessary.
- Always pressure test the cooling system after working on it.
Advice for optimal protection of the cooling system
For a long lifespan of the radiator, water pump, and other components of the cooling system, we always recommend using the correct coolant.
For classic Mercedes models, this is usually a blue-green, silicate-based coolant that offers protection against corrosion, limescale, and internal degradation of the cooling system.
In addition, waterless coolant is an excellent alternative. It prevents internal corrosion, reduces the risk of boiling problems, and offers extra protection for classic engines.
- Protects radiator and engine block against corrosion.
- Prevents deposits and contamination in the cooling system.
- Improves the reliability of the entire cooling system.
- Extends the lifespan of important parts.
Both the blue-green silicate-based coolant and waterless coolant are available via our webshop.
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.








