Choose your vehicle to find compatible parts

You need authorize to use this functionality

Hello, Log In My Account

0 Basket 0 EUR

View Basket Checkout

Basket empty

Total	0 EUR

Auxiliary Water Pump (Coolant Circulation)

Name: Auxiliary Water Pump (Coolant Circulation) 408680 - TOPRAN (54978388)
Brand: TOPRAN
SKU: 54978388
Price: 42.43 EUR
Availability: InStock

Compatible with MERCEDES-BENZ C-CLASS (W203) , MERCEDES-BENZ CLK (C208) , MERCEDES-BENZ CLK Kabriolets (A208) Show more info

Maintains optimal coolant circulation for consistent engine temperature. Ensures reliable performance and prevents overheating.

42.43 EUR

inc. VAT 21%

In stock 2

Delivery	1 day (23.03.2026)
PN	408680
Make	TOPRAN

Description
Specification
Alternatives
Compatibility
OE numbers

This auxiliary water pump is designed to ensure efficient coolant circulation within your vehicle's engine. Proper coolant flow is crucial for maintaining the engine's operating temperature, preventing overheating, and ensuring consistent performance, especially during demanding driving conditions or in warmer climates. By actively circulating coolant, this pump helps to distribute heat evenly throughout the engine block and radiator. This is particularly important for vehicles equipped with auxiliary heating systems, as it aids in providing cabin warmth quickly. Its robust construction is built to withstand the rigors of engine bay environments, offering durability and long-term reliability. Installation of this TOPRAN auxiliary water pump is recommended to maintain the integrity of your cooling system. A failing water pump can lead to significant engine damage due to overheating. Replacing a worn or malfunctioning unit with this part will help restore proper cooling function and protect your engine investment.

Ensures proper coolant circulation for optimal engine temperature.
Helps prevent engine overheating and potential damage.
Supports efficient operation of auxiliary heating systems.
Designed for durability and long-term reliability.
Direct replacement for the original auxiliary water pump.
Maintains consistent engine performance.
Built to withstand engine bay conditions.

Operating mode

electric

Nominal voltage [V]

1/2"

Number of pin contacts

Housing type

Plastic housing

MERCEDES-BENZ
- C-CLASS (W203)
  - C 180 (203.035) (95kW/129PS)
  - C 200 Kompressor (203.045) (120kW/163PS)
  - C 240 (203.061) (125kW/170PS)
  - C 320 (203.064) (160kW/218PS)
  - C 200 CDI (203.004) (85kW/116PS)
  - C 270 CDI (203.016) (125kW/170PS)
  - C 220 CDI (203.006, 203.008) (105kW/143PS)
  - C 180 Kompressor (203.046) (105kW/143PS)
  - C 200 Kompressor (203.042) (120kW/163PS)
  - C 240 4-matic (203.081) (125kW/170PS)
  - C 320 4-matic (203.084) (160kW/218PS)
  - C 200 CDI (203.007) (90kW/122PS)
  - C 200 CGI Kompressor (203.043) (125kW/170PS)
  - C 230 Kompressor (203.040) (141kW/192PS)
  - C 220 CDI (203.008) (110kW/150PS)
  - C 320 CDI (203.020) (165kW/224PS)
  - C 280 (203.054) (170kW/231PS)
  - C 280 4-matic (203.092) (170kW/231PS)
  - C 350 (203.056) (200kW/272PS)
  - C 350 4-matic (203.087) (200kW/272PS)
  - C 230 (203.052) (150kW/204PS)
- CLK (C208)
  - CLK 200 Kompressor (208.344) (120kW/163PS)
  - CLK 230 Kompressor (208.348) (145kW/197PS)
- CLK Kabriolets (A208)
  - CLK 200 Kompressor (208.444) (120kW/163PS)
  - CLK 230 Kompressor (208.448) (145kW/197PS)
- C-CLASS Coupe (CL203)
  - C 180 (203.735) (95kW/129PS)
  - C 200 Kompressor (203.745) (120kW/163PS)
  - C 220 CDI (203.706) (105kW/143PS)
  - C 230 Kompressor (203.747) (145kW/197PS)
  - C 180 Kompressor (203.746) (105kW/143PS)
  - C 200 Kompressor (203.742) (120kW/163PS)
  - C 230 Kompressor (203.740) (141kW/192PS)
  - C 320 (203.764) (160kW/218PS)
  - C 200 CGI Kompressor (203.743) (125kW/170PS)
  - C 200 CDI (203.707) (90kW/122PS)
  - C 220 CDI (203.708) (110kW/150PS)
  - C 350 (203.756) (200kW/272PS)
  - C 230 (203.752) (150kW/204PS)
  - C 160 Kompressor (203.730) (90kW/122PS)
- C-CLASS T-Model (S203)
  - C 200 Kompressor (203.245) (120kW/163PS)
  - C 320 (203.264) (160kW/218PS)
  - C 200 CDI (203.204) (85kW/116PS)
  - C 220 CDI (203.206, 203.208) (105kW/143PS)
  - C 270 CDI (203.216) (125kW/170PS)
  - C 180 (203.235) (95kW/129PS)
  - C 240 (203.261) (125kW/170PS)
  - C 180 Kompressor (203.246) (105kW/143PS)
  - C 200 Kompressor (203.242) (120kW/163PS)
  - C 240 4-matic (203.281) (125kW/170PS)
  - C 320 4-matic (203.284) (160kW/218PS)
  - C 200 CGI Kompressor (203.243) (125kW/170PS)
  - C 200 CDI (203.207) (90kW/122PS)
  - C 230 Kompressor (203.240) (141kW/192PS)
  - C 220 CDI (203.208) (110kW/150PS)
  - C 350 (203.256) (200kW/272PS)
  - C 350 4-matic (203.287) (200kW/272PS)
  - C 280 (203.254) (170kW/231PS)
  - C 280 4-matic (203.292) (170kW/231PS)
  - C 230 (203.252) (150kW/204PS)
  - C 320 CDI (203.220) (165kW/224PS)
- CLK (C209)
  - CLK 320 (209.365) (160kW/218PS)
  - CLK 500 (209.375) (225kW/306PS)
  - CLK 240 (209.361) (125kW/170PS)
  - CLK 200 Kompressor (209.342) (120kW/163PS)
  - CLK 200 CGI (209.343) (125kW/170PS)
  - CLK 270 CDI (209.316) (125kW/170PS)
  - CLK 350 (209.356) (200kW/272PS)
  - CLK 280 (209.354) (170kW/231PS)
  - CLK 220 CDI (209.308) (110kW/150PS)
  - CLK 320 CDI (209.320) (165kW/224PS)
- CLK Kabriolets (A209)
  - CLK 200 Kompressor (209.442) (120kW/163PS)
  - CLK 200 CGI (209.343) (125kW/170PS)
  - CLK 240 (209.461) (125kW/170PS)
  - CLK 320 (209.465) (160kW/218PS)
  - CLK 500 (209.475) (225kW/306PS)
  - CLK 350 (209.456) (200kW/272PS)
  - CLK 280 (209.454) (170kW/231PS)
  - CLK 320 CDI (209.420) (165kW/224PS)
  - CLK 200 Kompressor (209.441) (135kW/184PS)

MERCEDES-BENZ

203 835 00 64 A203 835 00 64

SMART

A203 835 00 64 203 835 00 64

Auxiliary Water Pump (Coolant Circulation)

Contact Us

Information

My Account

Auxiliary Water Pump (Coolant Circulation)

Cookie settings