Question 1

What is the best exhaust line for an agricultural tractor?

Accepted Answer

For an agricultural tractor, the best exhaust line is the one that exactly matches the manufacturer’s original specifications: inner diameter, tube length, flange diameter and position, type of silencer (vertical or horizontal), and material (steel or stainless steel). An original line sourced from dismantling identical equipment ensures immediate compatibility and a lifespan consistent with the machine’s age. Universal aftermarket parts may work in a pinch but often have fitting gaps that accelerate wear of seals and clamps. At TMC Bejenne, you will find genuine New Holland components tested in our workshop, available immediately from our permanent stock of 25,000 references. Call 05 86 24 00 26 to check availability for your model.

Question 2

How do I identify the right exhaust for my New Holland tractor?

Accepted Answer

In most cases, three pieces of information are sufficient: the exact model of your machine (e.g. T7.190, TM 135, CX 840), the type of component to replace (silencer, pipe, manifold, elbow or valve), and if possible, the measured connection diameter on the part to be replaced. This information allows our technicians to identify the compatible reference in our stock. If you are unsure about the model, the machine’s serial number will suffice. Contact us at 05 86 24 00 26 or use the model filter on our online catalog.

Question 3

What is the difference between a genuine used exhaust and an aftermarket one?

Accepted Answer

An original exhaust is made by the manufacturer (or its supplier) for a specific model: the dimensions, mounting flanges, connection diameter, and hood layout match precisely. An aftermarket exhaust is a generic part designed to fit several models through intermediate sizes or adapters. In practice, aftermarket parts are often cheaper but may require adjustments during installation and cause more exhaust gas leaks over time. A genuine used part from the dismantling of an end-of-life New Holland offers the same precision as a new manufacturer part, at a comparable or lower price than a quality aftermarket part.

Question 4

My New Holland tractor is smoking more than usual: could it be the exhaust?

Accepted Answer

Excessive black smoke generally indicates a combustion issue (injection, turbo, air filter) rather than an exhaust defect. However, blue smoke or a burnt smell from under the hood may signal a leak at the exhaust manifold or its seals, with gases escaping before the silencer. A pierced silencer causes a characteristic blowing sound and slight overconsumption. A stuck closed valve causes a noticeable power loss, especially when cold. In all cases, a precise diagnosis is needed before ordering a part: our technicians are available at 05 86 24 00 26 to assist you.

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