Bobcat Rubber Track Specifications by Model

Bobcat produces compact excavators across two primary families the current E series and the legacy 300 series both carrying distinct undercarriage specifications that must be confirmed against machine serial number and year of manufacture. The table below covers the most frequently ordered Bobcat rubber track specifications. All must be confirmed before ordering.

Bobcat Mini Excavator, Compact Excavator & CTL Track Specifications

The Bobcat E10, E14, and E17 mini excavators typically use a 180 × 72 × 37 rubber track configuration. Minor variations can occur across production batches, so confirming the serial number is recommended before ordering.

For the Bobcat E20 and E26 mini excavators, the standard track size is 230 × 48 × 66, which remains consistent across most production years and is generally straightforward to match.

The Bobcat E32 mini excavator commonly uses a 300 × 52.5 × 80 track specification. This is a priority stock size, but variations can exist, so confirming the serial number is important to ensure correct fitment.

Bobcat E42 models typically use 320 × 52.5 × 82 tracks. As with other mid-range machines, it’s advisable to confirm the serial number due to possible configuration differences.

For compact excavators, the Bobcat E50 and E55 are fitted with 400 × 72.5 × 72 rubber tracks. Regional production differences may affect the specification, so serial number verification is recommended.

Looking at legacy machines, the Bobcat 331 uses a 300 × 52.5 × 80 track configuration. These models were produced with multiple undercarriage setups over time, so confirming the year of manufacture alongside the serial number is essential.

Similarly, the Bobcat 337 and 341 excavators typically use 320 × 52.5 × 82 tracks. Due to production variations, both the serial number and machine year should be confirmed before ordering replacement tracks.

For compact track loaders, the Bobcat T300 and T190 use a 320 × 86 × 52 track specification. This is a CTL-specific setup, requiring a reinforced rubber track with a stiffer steel cord core to handle higher torque, weight, and operating demands.

All specifications must be confirmed against your machine serial number and year of manufacture. The Bobcat 331 track rollers and rubber track specifications vary significantly across production years never order 331 specifications from model name alone. The Bobcat T190 rear idler and T300 track rollers carry CTL-specific specifications distinct from E series excavator undercarriage parts.

Warning Signs, When Your Bobcat Rubber Tracks Need Replacing

A worn rubber track on a Bobcat excavator places abnormal stress across every component in the Bobcat undercarriage system simultaneously. Replace your Bobcat rubber tracks if you are seeing any of the following:

• Tracks derailing on turns or slopes — steel core stretch beyond what the Bobcat track adjuster can compensate for. A replacement situation, not a tensioning one.
• Steel cord visible at the outer or inner track surface — full compound wear-through. Every operating hour from this point risks sudden separation without warning.
• Cracking across or between lugs — compound hardening from UV exposure or over-tensioning. Surface cracks propagate under operating load and lug separation follows.
• Uneven lug wear across track width — the Bobcat track is running off-centre. Inspect idler alignment and track adjuster condition alongside the replacement.
• Drive lug damage on the inner track surface — abnormal Bobcat sprocket contact shearing drive lug material. Inspect sprocket tooth profile before fitting a new track.
• Track adjuster at maximum extension — the track has stretched beyond the adjuster's travel range. Replace immediately.

Bobcat 331, Why Serial Number Verification Is Non-Negotiable

The Bobcat 331 is one of the most widely operated legacy excavators across hire fleets and owner-operator businesses globally and one of the most consistently misquoted rubber track specifications in the market. The reason is simple: the 331 has been in production across enough years and regional markets to carry several distinct undercarriage configurations within the same model designation.

Track width, pitch, and in some cases link count differ between Bobcat 331 production generations. A 331 built for the North American market in 2005 may carry a different rubber track specification from a 331 built for the European market in 2012 despite sharing identical external appearance and the same model badge.

At Imara Engineering, every Bobcat 331 track order is processed against both the machine serial number and year of manufacture. We do not confirm a 331 rubber track order from model name alone; the risk of the wrong specification arriving on site is too consequential when the machine is already standing idle. Provide your 331 serial number, year of manufacture, and existing track markings if available and we confirm the exact specification before your order is placed.

Bobcat T300 and T190, Compact Track Loader Specification

The Bobcat T300 track rollers and T190 rear idler belong to Bobcat's compact track loader range and the rubber track specification for these machines is fundamentally different from the E series and 300 series excavator range.

Compact track loaders counter-rotate, spinning one track forward and one in reverse simultaneously to steer. This generates lateral shear stress across the full track body that excavator-specification steel cord configurations cannot withstand. The Bobcat T300 and T190 rubber tracks require a stiffer steel cord core rated for counter-rotation operating loads, the same engineering requirement that distinguishes all compact loader rubber tracks from excavator specifications.

Fitting an E series or 300 series excavator track to a Bobcat T300 or T190 will produce premature delamination regardless of dimensional compatibility. Always specify the machine type T300 or T190 not an E series model designation, when ordering Bobcat compact track loader rubber tracks.

OEM Quality. Bobcat Specification. Without the Dealer Premium.

Every Bobcat rubber track supplied by Imara Engineering is manufactured to three engineering standards confirmed against Bobcat OEM specification for each E series and 300 series model:

• Continuous spiral-wound steel cord core — rated to Bobcat's published tensile specification for each model. Under-rated cord stretches faster, loses tension earlier, and causes premature derailing on E series machines that operate with frequent directional changes in confined access sites.
• High-carbon rubber compound — formulated for cut resistance on construction sites and demolition environments, abrasion tolerance on aggregate and rocky terrain, and UV stability for machines stored and operated outdoors year-round.
• OEM-matched pitch and lug geometry — dimensionally accurate to Bobcat specification so the track engages the Bobcat sprocket tooth profile and Bobcat idler wheel correctly from the first operating hour without abnormal stress on any surrounding Bobcat undercarriage part.

OEM Bobcat rubber tracks carry a brand premium above equivalent quality aftermarket specification. At Imara Engineering, the steel cord rating, compound specification, pitch accuracy, and fitment guarantee replicate the Bobcat dealer standard. The premium does not.

What to Inspect Before Fitting New Bobcat Rubber Tracks

Bobcat's precisely engineered undercarriage means worn surrounding components damage a new rubber track faster than on machines with looser tolerances. Inspect these components before fitting new Bobcat excavator tracks:

• Bobcat Sprockets — hook wear or pointed tooth profile shears drive lugs from the new track's inner surface within a fraction of expected service life. Inspect and replace where wear is evident on any E series or 300 series machine.
• Bobcat Idler Wheels — a worn E series or 331 idler flange causes the new track to run off-centre from the first operating hour, reproducing the uneven lug wear pattern immediately.
• Bobcat Track Adjusters — a worn or leaking adjuster cannot maintain correct tension on the new track from day one. Confirm condition before the new track is fitted.
• Bobcat Track Rollers — a seized bottom roller creates a point load on the rubber track inner surface. Inspect all rollers before fitting new Bobcat excavator tracks.

Explore the complete Undercarriage Parts range at Imara Engineering including Bobcat track rollers, Bobcat idler wheels, Bobcat sprockets, and Bobcat track adjusters.