What Are Case 440CT Tracks Used For?

Case 440CT tracks are the rubber belts that fit that compact track loader, and the size that comes back for the machine is 400x86x50 - 400 mm wide, 86 mm pitch and 50 links, the same belt our catalogue lists for the 440CT alongside the M400T and TR310. The machine itself is a mid-size tracked loader, and the tracks are used for the work that shape of machine does: grading and backfilling, loading out spoil, moving pallets and materials across a site, and working on ground where a wheeled skid steer would sink or spin.

Last updated: October 7, 2026

This guide covers what the machine's tracks are used for, what the size code means, how the tread and compound choices follow the ground, what wears a set out, and how to buy in Canada. The range is in the rubber track collection and the method is in the rubber tracks guide.

What the 440CT does, and what that asks of its tracks

A compact track loader of this size is bought for flotation and traction rather than for speed. Its tracks are what let it work in soft ground, on slopes and in wet conditions where a wheeled machine would be digging itself in, and they are what protect the surface underneath - which is why the same machine turns up in construction, landscaping, agriculture and municipal work.

That range of work is the reason the track specification matters more than the badge. A machine that spends its life grading a building pad needs a general-purpose tread and a compound that resists abrasion on gravel and sub-base. One that works on turf or finished paving needs something smoother. One that works in mud and snow needs an open pattern that clears and bites. The size code stays the same; the belt around it changes.

What 400x86x50 means

Three numbers and no ambiguity. 400 is the width in millimetres, which sets ground pressure - how much the machine sinks, and how much surface it marks. 86 is the pitch, the distance between link centres, and it is the one dimension that cannot be worked around: it has to engage the drive sprocket exactly, and a belt with the wrong pitch damages the sprocket and itself. 50 is the link count, which is the belt's length; a belt one link out will not tension correctly, and the adjuster sits at the end of its travel on the first day.

Take all three from the marking on the belt that is on the machine, then confirm them against the manual or parts book for that serial number. Where a machine has been re-tracked, the belt on it is the only reliable record of what actually fits.

What wears a 440CT track out

Four causes, in the order they usually appear. Abrasive ground and constant turning - the lugs round off, then cracks appear at the lug base, and grip falls away gradually until the machine spins on ground it used to climb. Exposed cord at a cut edge or a bulge in the belt, which is the end: that belt can part under load. Loss of tension between adjustments, which is the belt's cord construction showing its limits - or a tensioner that has stopped holding its charge. And wear on one edge, which is not the belt's fault at all: it means the undercarriage is not running true.

That last point is the one that costs people a second set. A tracked loader wears its sprocket, idler and rollers on the same hours as the belt, and a hooked sprocket or a grooved idler wears a new belt from the inside out. Checking the steel whenever the belt is off is what protects the set you just bought.

What a fleet should keep on the shelf

A 440CT is normally one of several machines, and the tracks are the consumable that stops the machine first. Two things are worth keeping, and neither of them is a spare set of belts.

The first is a record per machine: the size code of the belt fitted, the hours and ground it has run, and the tension figure the machine is set to. That record turns the next purchase into a comparison and tells you which machine is due next - which matters when several loaders are working the same site and the same ground.

The second is the steel that shares the hours: a note of the drive sprocket, idler and roller condition at each belt change. Tracking those means the components are ordered in the same job as the belt, which is where the saving actually is on a tracked loader - the parts are a fraction of the cost of taking the track off twice, and the access work is identical whether one component or three are replaced.

Beyond that, buying on condition rather than on schedule is the discipline that pays. A belt is finished when its tread and cord say so, not when a calendar does, and a fleet that measures at each service gets more hours out of a set than one that replaces on habit.

Buying a set in Canada

Four items belong in writing: the size cross-reference for your machine; the specification as supplied - cord construction, tread depth and pattern, and the compound's published temperature band; the warranty terms as a period plus an operating-hours cap, whichever comes first, with freight responsibility named; and the stock position with a delivery date.

Two habits make the next purchase measurable. Replace the pair when both belts have run the same hours, because the machine otherwise steers against the older belt and wears the new one faster. And keep the old belt's size code on file when it comes off, because that code is what a supplier needs to confirm fitment if a belt fails early - and it is the same discipline that applies to the rest of the undercarriage, where the parts that run with the tracks are set out in the undercarriage parts guide.

FAQs

What size tracks does a Case 440CT take?

400x86x50 - 400 mm wide, 86 mm pitch and 50 links - which is the fitment listed for the 440CT together with the M400T and TR310. Confirm against the marking on your machine's belt and its parts book.

What are Case 440CT tracks used for?

The work a compact track loader does: grading, backfilling, loading and moving materials, and working on soft, wet or sloping ground where a wheeled skid steer would lose traction or sink.

Which tread pattern is best for a 440CT?

A general-purpose pattern for mixed site work, a more open one for mud, sand and loose soil, a heavy block pattern for rock and demolition debris, and a smooth or non-marking profile for turf and paving.

How long should a set of 440CT tracks last?

Condition decides it rather than an hours figure - tread depth, cracks at the lug base, loss of tension between adjustments and exposed cord - and abrasive ground or constant turning shortens the interval considerably.

Should the sprocket be replaced with the tracks?

If the teeth are hooked, yes. A new belt on a worn sprocket wears from the inside out, so the two are usually cheaper as a pair than as two separate repairs.