ATJ3774 - Overflow pipe

ATJ3774 Radiator Overflow Pipe for Leyland and Marshall Tractors

Quality clear radiator overflow pipe suitable for a wide range of Leyland and Marshall tractors.

This pipe connects the radiator overflow system to the coolant recovery bottle, allowing excess coolant to flow into the overflow bottle as the engine warms up and return to the cooling system as it cools. Replacing old, discoloured or cracked pipework helps maintain reliable cooling system operation and improves the appearance of the engine bay.

Important Information

• Fits all applicable Nuffield, Leyland and Marshall tractors fitted with a radiator overflow bottle system.
• Not suitable for:
  • BMC Mini
  • Nuffield 4/25
  • Leyland 154
  • Leyland 302
  • Marshall 302

Please check your tractor's cooling system arrangement before ordering.

Technical Specification

• Internal diameter (ID): 8mm (0.315")
• Outside diameter (OD): 14mm (0.551")
• Length supplied: 1.1 metres (43.3")

Associated Parts

• ATJ3772 – Radiator overflow bottle
• ATJ3773 – Overflow bottle cap
• 24G3770 – Overflow bottle support bracket

Features

• Quality clear coolant overflow pipe
• Suitable for radiator expansion and recovery systems
• Supplied in a convenient 1.1 metre length
• Allows easy visual inspection of coolant flow
• Manufactured for durability and long service life
• Ideal for cooling system repairs and restoration projects

Additional Information

Over time, coolant overflow pipes can become brittle, discoloured or damaged through age and exposure to heat. Replacing the pipe helps maintain proper coolant recovery system operation and can improve the overall appearance of a restored tractor.

Ideal for customers searching for Leyland overflow pipes, Marshall coolant recovery hoses, radiator overflow tubing, expansion bottle hoses, tractor cooling system pipes and vintage tractor restoration parts.

We specialise in quality parts for Nuffield, Leyland and Marshall tractors and aim to supply reliable tractor spare parts and cooling system components that fit correctly and perform reliably.