New Holland EC45 Rubber Tracks & Parts

The New Holland EC45 runs a 400x72.5Wx72 track: 400 mm across the tread, 72.5 mm between links, 72 links around. Cut for digging, trenching, backfill and tight-quarters work and shipped free to the lower 48.

What the numbers mean on a New Holland EC45

400x72.5Wx72 — 400 mm tread width (about 16"), 72.5 mm pitch, 72 links, wide guide lugs

Width is the tread face, pitch is the distance between drive lugs, and links is the count around the loop. All three have to match — a track one link off will not tension correctly no matter how close the width is.

Tread choice for the New Holland EC45

Size gets the track on the machine; tread decides how it works and how long it lasts. What we stock for this one:

Staggered Block — mixed dirt and gravel. Block stability with better cleanout than a straight block

New Holland EC45 at a glance

Operating weight — 109,300 lb
Engine — 303 hp

Undercarriage parts for the New Holland EC45

Rollers, idlers and sprockets wear on the same clock as the track. Fitting new rubber over a hooked sprocket or a seized roller is the fastest way to lose the new track — check these while the tracks are off:

Bottom roller — TRMU5178

How these wear

Excavator undercarriages load one side hard on slew and travel, so link cracking usually shows up before the tread wears out. Replace in pairs where you can: a new track running against a stretched one loads the drive unevenly and you will feel it in the steering.

Same track, other machines

Track size follows undercarriage geometry, not brand, so 400x72.5Wx72 shows up on machines from several makers. If you run any of these alongside the New Holland EC45, it is the same belt:

Not sure which you are running? Read the size off the inside of the old track, or call (850) 816-7898 and we will pull it off the machine record. The Track Finder works by make and model too.

More New Holland undercarriage

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Track sizes

Heavy-Duty Rubber Tracks for EC45

New Holland EC45 400x72.5Wx72 Staggered-Block
- Heavy Duty | 400x72.5Wx72
- Smooth Ride
- Easy Turning
- Cut Resistant
$1,716.00$1,698.84
In stock

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New Holland EC45 400x72.5Wx72
- Heavy Duty | 400x72.5Wx72
$1,963.00$1,719.00
In stock

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New Holland EC45 400x72.5Wx72
- Bridgestone | 400x72.5Wx72
$2,359.00$2,049.00
In stock

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Which tread fits New Holland EC45?

Pick a tread for your jobsite — then buy above.

+ Recommended surface- Not the primary use— Application dependent

Pattern	Best Use	Key Traits	Road	Clay	Gravel	Mulch	Mud	Turf	Action
Staggered BlockSmooth turning	A smoother-riding tread option with easier turning and dependable cut resistance on mixed surfaces.	Smooth Ride Easy Turning Cut Resistant	+	-	+	-	-	+	View

100% Virgin Rubber
Engineered to resist chunking, tearing, and cutting in harsh, abrasive environments.
Continuous Steel Cords
Jointless internal cable architecture eliminates structural weak points and maximizes overall tensile strength.
Drop-Forged Links
Precision heat-treated guide lugs ensure exact sprocket engagement and prevent de-tracking under heavy side-loads.
Corrosion Resistant
The internal steel framework is fully encapsulated to prevent oxidation, rust, and moisture penetration.
Reinforced Sidewalls
Extra-thick vulcanized rubber and tapered edge profiles protect against curb slashing and lateral impacts from jobsite debris.
Low-Vibration Tread
Optimized lug spacing and pitch geometry absorb shock, reducing undercarriage wear and minimizing cabin vibration.