What is in the Cummins 4BT cooling and exhaust kit?

The Cummins 4BT cooling and exhaust kit includes: Radiator hoses made for this swap; Intercooler pipe set; Downpipe and flex section; Expansion tank adapter; Temperature sender adapter.

It is made for the Defender 110, Jeep TJ and Jeep YJ (1987–2006), and replaces the 300Tdi, 4.0 and 2.5. Gearbox set-ups we support are the AX15, R380 and NV3550.

This kit costs about 450 € to 740 €, depending on the exact listing. The engine is not included, so you can use your own 4BT or buy one from our yard.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. If you are not sure which kit you need, tell us your vehicle, its year and its current engine and gearbox. We help for free.