CSP J-tubes (42mm) VW T25 1979–1983 1700cc, 1800cc, 2000cc

Part Number
J31720
OEM Part Number
257 254 042E
Available In 21 Days
£495.00
Need Help? Call the JK Team On 01256 86 22 88

These stainless steel exhaust J-tubes are just the thing if you wish to remove the heat exchangers from your Type 4 air-cooled engine either to increase power or due to the fact they are no longer in useable condition.


They replace the original heat exchangers and are made from 42mm tubing. The tubes are stainless steel whilst the flanges and adapter stacks are mild steel. These are made to fit vehicles up to 1978. High-quality fitting hardware included.

Quality CSP product. J-tube heat exchanger replacement pipes. Designed for type 4 style engines in VW T25s built from 1979 to 1983. These use 4x copper rings with a raised flange (See image 2).