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Top Biggest Track Loaders by Operating Weight

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How large can a tracked loader get? This ranking compares six crawler loaders from Caterpillar, Liebherr, John Deere and Komatsu based primarily on their operating weight.

The selected machines range from the compact 5.22-ton John Deere 350 to the 32.5-ton Cat 983. We also compare engine power, bucket capacity, loading performance, transport requirements and suitability for quarry work, stockpile loading, demolition cleanup and heavy earthmoving.

Table of contents

Generation-Cat 983 Crawler loaders-cover

The Cat 983 brings 205.07 kW, a 3.75 cu m bucket, and nearly 20-ton breakout force to crawler loader work that centers on bulk loading and heavy pushing. Compared with the 973 and 977, it favors raw production and tracked stability over speed or modern comfort.

Overview

The Cat 983 (1972–2025) is a production-focused crawler loader built for heavy pushing and bulk loading. With 205.07 kW net, a 3.75 cu m bucket, 32,500 kg operating weight, and 19,890 kg breakout force, it targets quarries, large site prep, and continuous stockpile work where volume per pass matters more than maneuverability.

Expert rating: 3 stars

Pros Huge bucket and breakout for bulk material; tracked traction for uneven or soft sites.
Cons Large footprint limits access; fuel and undercarriage costs are significant on long duty cycles.

Performance & Efficiency

The D343 delivers steady power for pushing full buckets, while 520.06 lpm hydraulic flow supports quick raise and dump times (8 s raise, 3 s lower). Travel speed tops out at 11.91 kph. Efficiency comes from moving more material per pass rather than fast sprints.

Maintenance & Ownership

Ownership centers on undercarriage wear, cooling cleanliness, and hydraulic health. With large fluid volumes across engine, hydraulics, and finals, service events are substantial. Pins, bushings, and track components drive long-term cost.

In Cabin

Expect a utilitarian operator environment on older units. Visibility to the bucket is good, controls are straightforward, but noise and vibration reflect the era.

In Comparison

Cat 973: Smaller and more maneuverable for tighter sites.
Cat 977: Earlier-generation alternative with less outright production.
Cat 983: The volume mover when you want maximum bucket and push in a tracked loader.

Final Verdict

Rated 3 stars, the Cat 983 (1972–2025) fits the AED 73,000–298,000 range as a heavy crawler loader for bulk earthmoving. It trades access and modern comfort for raw production and dependable tracked traction.

19,890.05 kg Breakout force
D343 Engine model
3.66 m Loader dump height
205.07 kw Net power
32,500 kg Operating weight
22,080 kg Tipping load
See full spec & review

Makana rating

Owner rating

| 3

Market average

AED 298,000

Starting from

AED 73,000
See owner ratings
Generation-Cat 963 Crawler loaders-cover

The Cat 963 delivers serious crawler-loader production with a 2.06 cu m bucket, 111.86 kW of net power, and over 18 tons of operating weight, making it ideal for quarry loading, landfill work, and large site prep. Compared naturally with the Cat 953 and Cat 955, it stands out for higher capacity and stronger breakout in demanding, rough-ground applications.

Overview

The Cat 963 combines 111.86 kW net power with a 2.06 cu m bucket and roughly 18,366 kg operating weight for heavy crawler loader production.

Pros High breakout force, excellent tracked stability, strong bulk loading performance.
Cons Higher fuel consumption, large size limits tight-site agility.

Efficiency

17,339.5 kg breakout force and a 2.06 cu m bucket support fast cycles in quarry and landfill applications.

In Cabin

Later models improve visibility and hydraulic smoothness with production-focused ergonomics.

In Comparison

More productive than Cat 953 and far stronger than Cat 955 for heavy daily loading.

Final Verdict

Rated 5 stars, the Cat 963 suits large earthmoving operations in the AED 512,000–920,000 range.

17,339.5 kg Breakout force
2.06 cu m Bucket capacity
3304 Engine model
3.14 m Loader dump height
111.86 kw Net power
18,366 kg Operating weight
See full spec & review

Makana rating

Owner rating

| 3

Market average

AED 920,000

Starting from

AED 512,000
See owner ratings
Generation-John deere JD350 Crawler loaders-cover

The John Deere JD350 crawler loader favors durability and tight-space maneuverability over outright power, positioning below the JD355 for output but ahead in compact access.

Overview

The John Deere JD350 crawler loader combines compact width with crawler traction, delivering steady pushing power for land clearing and grading.

Pros Excellent traction on soft ground, compact width, durable mechanical build.
Cons Low engine output and slow travel speed.

Efficiency

The 31.32 kW engine and crawler undercarriage favor steady pushing and grading over fast loading.

In Cabin

Basic operator station with minimal comfort, reflecting its legacy design.

In Comparison

Compared with the JD355, the JD350 trades power for tighter access and simplicity.

Final Verdict

A 3-star crawler loader built for durability and traction in confined or soft-ground environments.

2,687.48 cu cm Displacement
300 Series Engine model
149.14 Nm Max torque
31.32 kw Net power
5,538 kg Operating weight
1.52 m Width over tracks
See full spec & review

Makana rating

Owner rating

| 3

Market average

AED 431,000

Starting from

AED 403,000
See owner ratings
Generation-John deere 855 Crawler loaders-cover

The John Deere 855 pairs a 149.14 kW turbocharged engine with over 22 tons of operating weight, making it ideal for quarry loading, heavy site prep, and bulk material pushing. Sitting well above the JD 850 and larger than the 755, it stands out for torque and traction in demanding crawler-loader applications.

Overview

The John Deere 855 delivers 149.14 kW net power with nearly 990 Nm of torque and 22,498 kg operating weight for heavy crawler loader applications.

Pros Massive torque for pushing, strong hydraulic flow, excellent tracked stability.
Cons Large footprint, higher fuel consumption than smaller crawler loaders.

Efficiency

With 221.42 lpm hydraulic flow and heavy undercarriage, the 855 favors sustained production over quick cycles.

In Cabin

Functional cab with solid visibility and straightforward controls, focused on durability.

In Comparison

Far more powerful than the JD 850 and heavier than the 755, the 855 targets serious crawler loader work.

Final Verdict

Rated 3 stars, the John Deere 855 fits quarry and heavy site prep in the AED 49,000–260,000 range.

10,143.62 cu cm Displacement
500 Series Engine model
989.73 Nm Max torque
149.14 kw Net power
22,498 kg Operating weight
137.89 bar Relief valve pressure
See full spec & review

Makana rating

Owner rating

| 3

Market average

AED 260,000

Starting from

AED 49,000
See owner ratings
Generation-Komatsu D75S Crawler loaders-cover

The Komatsu D75S delivers strong crawler loader capability with a 2.22 cu m bucket, 149.14 kilowatt engine power, and a heavy 20,790 kg operating weight. Positioned against the John Deere 655 and Komatsu D70, it stands out for offering loader-focused production performance with the traction and pushing confidence of a tracked platform.

Overview

The Komatsu D75S (1979–1987) is a heavy crawler loader designed for bulk material handling, land clearing, and rough loading tasks. It delivers 149.14 kilowatt engine power, a 2.22 cu m bucket, and a 3.2 m dump height, providing solid production capability on difficult ground conditions.

Expert rating: 3 stars

Pros Strong traction and stable bucket performance on rough and uneven job sites.
Cons Older machine platform with slower travel and less refinement than newer loaders.

Performance & Efficiency

The 149.14 kilowatt engine, 2.22 cu m bucket, and 3.2 m dump height give the D75S practical loading power for bulk earthmoving and site material handling, while the tracked undercarriage improves traction on softer or uneven ground.

In Comparison

John Deere 655: Practical crawler loader with comparable site-loading ability.
Komatsu D70: More focused on dozing rather than dedicated loading work.
Komatsu D75S: Better suited to buyers wanting tracked loading performance and stronger bucket-focused capability.

Final Verdict

Rated 3 stars, the Komatsu D75S offers practical crawler-loader performance within the AED 58,000–110,000 range.

16,887.26 kg Breakout force
2.22 cu m Bucket capacity
NTO-6-CI Engine model
3.2 m Loader dump height
149.14 kw Net power
20,790 kg Operating weight
See full spec & review

Makana rating

Owner rating

| 3

Market average

AED 110,000

Starting from

AED 58,000
See owner ratings
Generation-Liebherr LR636 Crawler loaders-cover

The Liebherr LR636 delivers strong crawler-loader capability with 135.05 kilowatt net power, responsive variable-displacement hydraulics, and a tracked setup built for steady site work. Positioned against the Cat 963 and Cat 973, it stands out for balanced hydraulic control, practical traction, and a more modern-feeling work platform for loading and cleanup duties.

Overview

The Liebherr LR636 (2022–2025) is a practical crawler loader designed for material handling, site cleanup, and rough loading tasks. It delivers 135.05 kilowatt net power, a variable displacement hydraulic pump, and a tracked undercarriage, providing balanced performance across contractor and earthmoving work.

Expert rating: 5 stars

Pros Strong hydraulic response, good traction, and stable loading performance on rough ground.
Cons Tracked layout is slower than wheeled loaders, and value depends heavily on the actual machine spec and condition.

Performance & Efficiency

The D 934 A7 engine, 209.31 lpm hydraulic pump flow, and tracked undercarriage give the LR636 reliable performance for loading, cleanup, and routine contractor work, while the 0.49 m ground clearance and six track rollers per side help it stay effective on softer surfaces and mixed site ground.

In Comparison

Cat 963: Proven crawler loader with strong contractor appeal and dependable site-loading performance.
Cat 973: Heavier competitor with a more substantial feel on tougher loading work.
Liebherr LR636: Known for balanced hydraulic control, practical traction, and dependable daily site versatility.

Final Verdict

Rated 5 stars, the Liebherr LR636 offers strong crawler-loader capability within the AED 532,000–910,000 range.

D 934 A7 Engine model
1,800 rpm Power measured @
4 Number of cylinders
135.05 kw Net power
0.49 m Ground clearance
209.31 lpm Pump flow cap
See full spec & review

Makana rating

Owner rating

| 3

Market average

AED 910,000

Starting from

AED 532,000
See owner ratings

Related machinery rankings

Top Biggest Track Loaders by Operating Weight FAQ.

The Cat 983 ranks first with an operating weight of 32,500 kg. It also provides 205.07 kW of net power, a 3.75 m³ bucket and nearly 19.9 tons of breakout force.

The heaviest LR636 configuration weighs approximately 23,047 kg, compared with about 22,498 kg for the John Deere 855. The difference is roughly 549 kg, so attachments and track configurations can affect the practical order.

The Liebherr LR636 offers published bucket capacities reaching 4.6 m³, while the Cat 983 uses a 3.75 m³ bucket. However, Liebherr’s largest option is intended for specialised high-volume materials, so bucket capacity alone does not indicate digging or loading strength.

The Komatsu D75S weighs approximately 21.22 tons and has a 2.22 m³ bucket. The Cat 963 weighs about 18.37 tons and carries a 2.06 m³ bucket. The Komatsu is larger and heavier, while newer Cat 963 generations offer more modern operating systems and controls.

The John Deere 350 was one of the supplied models, but it belongs to a compact size class. At approximately 5.22 tons, it is less than one-sixth the operating weight of the Cat 983 and targets lighter construction and land-maintenance work.

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build datetime: 8/17/2026, 2:01:49 PM