Komatsu D275A-5R vs Komatsu D375A-6: the two differ on 64 of 77 listed specs. The main differences are Engine (Komatsu 449 HP vs Komatsu 610 HP), Operating Weight (50,850 kg vs 71,640 kg), Weight (50850 kg vs 71640 kg), Fuel Tank (840 L vs 1200 L). The other 13 specs are the same.
Specs from OEM brochures · comparison updated Sep 2026
* Ex-factory price ranges are indicative for Oct 2026 and change with variant, city and offers; confirm with the dealer. On-road cost adds transport, RTO, insurance and accessories. Disclaimer
The comparisons provided are based on the technical specifications published by the respective OEMs on their official websites and brochures. Please confirm these details directly with the OEMs before making any final decision.
Key Highlights
Komatsu D275A-5R
Komatsu D375A-6
Komatsu D275A-5R
VS
Komatsu D375A-6
Dozer
Komatsu D275A-5R vs Komatsu D375A-6: the two differ on 64 of 77 listed specs. The main differences are Engine (Komatsu 449 HP vs Komatsu 610 HP), Operating Weight (50,850 kg vs 71,640 kg), Weight (50850 kg vs 71640 kg), Fuel Tank (840 L vs 1200 L). The other 13 specs are the same.
Specs from OEM brochures · comparison updated Sep 2026
Komatsu D275A-5R
Price Available Soon
Komatsu D375A-6
Price Available Soon
Particulars
Komatsu D275A-5R
Komatsu D375A-6
Komatsu D275A-5R vs Komatsu D375A-6: mid-size mining dozer or the next step up?
The Komatsu D275A-5R sits below the Komatsu D375A-6 in Komatsu's mining range, at 449 HP against 610 HP, with a 13.7 m³ blade against 18.5 m³. The D275A-5R turns in a tighter radius of 3,900 mm against the D375A-6's 4,200 mm, sinks less on soft ground, and even carries slightly more blade tilt adjustment at 1,000 mm against 970 mm, despite being the smaller machine. The D375A-6 answers with a bigger blade, a larger fuel tank at 1,200 litres, and higher travel speeds in both directions.
Choose by where the pit sits between standard and large mining classes. The D275A-5R fits medium-scale opencast mining, sized to match production without going oversized, and its manoeuvrability helps in tighter pit corners. The D375A-6 fits large opencast mines that need a bigger production step. Both are mining dozers from L&T Komatsu in our dozer range; the bulldozer guide can help match a dozer to your production target.
Komatsu D275A-5R
Pros:
Turns in a tighter radius of 3,900 mm for confined pit corners
Lower ground bearing pressure, sinks less on soft mining ground
Slightly more blade tilt adjustment than the bigger D375A-6
Sized between standard and large mining classes for medium-scale opencast production
Choice of giant single-shank or 3-shank multi-shank ripper
Cons:
Less powerful at 449 HP against the D375A-6's 610 HP
Smaller blade at 13.7 m³ against 18.5 m³
Smaller fuel tank at 840 litres against 1,200 litres
Slower in both forward and reverse travel
Komatsu D375A-6
Pros:
More powerful at 610 HP with an 18.5 m³ blade
Larger fuel tank at 1,200 litres for longer shifts
Faster forward and reverse travel speeds
Automatic planetary powershift with lockup converter and selectable working modes
Sized for large opencast mines needing a bigger production step
Cons:
Wider turning radius at 4,200 mm, less nimble in tight pit corners
Higher ground bearing pressure, sinks more on the same ground
Slightly less blade tilt adjustment than the smaller D275A-5R
Heavier machine, needs more haul-road and transport planning
Pros:
Cons:
Closing Recommendation
The Komatsu D275A-5R suits medium-scale opencast mining where a mid-sized machine matches production without going oversized, and where manoeuvrability in pit corners matters. The Komatsu D375A-6 suits large opencast mines that need a bigger blade, more fuel range and faster travel for heavier overburden volumes. So match the machine to your work: Komatsu D275A-5R for medium-scale opencast mining, Komatsu D375A-6 for large-scale opencast production.
Komatsu D275A-5R Vs Komatsu D375A-6 Dozer Price, Technical Specifications & Features
The Komatsu D275A-5R is a 50.9-tonne mining crawler dozer powered by a 449 HP engine. Its 13.7 m³ blade handles heavy cuts, while the 840-litre fuel tank supports long working shifts. A 3-shank multi-shank ripper provides wider breaking coverage, while the variable giant single-shank reaches 1,420 mm for deeper work. The choice allows the same machine to handle different ground conditions. Tractor-only ground bearing pressure is 87.3 kPa and rises to about 118 kPa in full operating trim. Firm mining benches are better suited to this configuration than soft fill. The D275A-5R sits between the D155A-6 and D375A-6 in Komatsu's mining range. Its operating size makes it suitable for quarry and overburden work where construction-class machines are no longer sufficient. Mining contractors can consider this dozer machine when daily production requirements have moved beyond the D155A-6. The two ripper choices provide flexibility between deep breaking and wider coverage. Its blade capacity also supports substantial material movement during each pass. Buyers can therefore compare the required ripping depth, ground conditions and production volume before selecting this model for mining work.
The Komatsu D375A-6 is a 71.6-tonne mining crawler dozer with a 610 HP engine. It sits between the D275A-5R and D475A-5E0, providing a substantial production step without moving directly to Komatsu's largest model. Blade capacity reaches 18.5 m³ for heavy overburden movement. Operators can choose between a variable giant single-shank and a 3-shank multi-shank ripper. The single-shank configuration focuses on deeper breaking, while the multi-shank option provides broader coverage. Tractor-only ground bearing pressure is 108 kPa and rises to about 145 kPa in full operating trim. Ground clearance is 610 mm, helping the machine work across rough pit floors. A 1,200-litre fuel tank supports long shifts. Coal and mineral mining are the main applications. Mining companies handling large overburden volumes can consider this dozer machine when the D275A-5R no longer offers enough capacity. Its operating weight provides substantial pushing capability without reaching the scale of the D475A-5E0. Buyers can match the ripper configuration to the material being worked. The D375A-6 is suited to mining operations where blade volume, pushing force and ripping capability all form part of the regular work cycle.
Agency review
Planning to buy the Komatsu D275A-5R Dozer in India? Get the best price, EMI & finance options, and delivery timelines by submitting a quick enquiry.
Planning to buy the Komatsu D375A-6 Dozer in India? Get the best price, EMI & finance options, and delivery timelines by submitting a quick enquiry.
Komatsu D275A-5R vs Komatsu D375A-6: mid-size mining dozer or the next step up?
The Komatsu D275A-5R sits below the Komatsu D375A-6 in Komatsu's mining range, at 449 HP against 610 HP, with a 13.7 m³ blade against 18.5 m³. The D275A-5R turns in a tighter radius of 3,900 mm against the D375A-6's 4,200 mm, sinks less on soft ground, and even carries slightly more blade tilt adjustment at 1,000 mm against 970 mm, despite being the smaller machine. The D375A-6 answers with a bigger blade, a larger fuel tank at 1,200 litres, and higher travel speeds in both directions.
Choose by where the pit sits between standard and large mining classes. The D275A-5R fits medium-scale opencast mining, sized to match production without going oversized, and its manoeuvrability helps in tighter pit corners. The D375A-6 fits large opencast mines that need a bigger production step. Both are mining dozers from L&T Komatsu in our dozer range; the bulldozer guide can help match a dozer to your production target.
Komatsu D275A-5R
Pros:
Turns in a tighter radius of 3,900 mm for confined pit corners
Lower ground bearing pressure, sinks less on soft mining ground
Slightly more blade tilt adjustment than the bigger D375A-6
Sized between standard and large mining classes for medium-scale opencast production
Choice of giant single-shank or 3-shank multi-shank ripper
Cons:
Less powerful at 449 HP against the D375A-6's 610 HP
Smaller blade at 13.7 m³ against 18.5 m³
Smaller fuel tank at 840 litres against 1,200 litres
Slower in both forward and reverse travel
Komatsu D375A-6
Pros:
More powerful at 610 HP with an 18.5 m³ blade
Larger fuel tank at 1,200 litres for longer shifts
Faster forward and reverse travel speeds
Automatic planetary powershift with lockup converter and selectable working modes
Sized for large opencast mines needing a bigger production step
Cons:
Wider turning radius at 4,200 mm, less nimble in tight pit corners
Higher ground bearing pressure, sinks more on the same ground
Slightly less blade tilt adjustment than the smaller D275A-5R
Heavier machine, needs more haul-road and transport planning
Pros:
Cons:
Closing Recommendation
The Komatsu D275A-5R suits medium-scale opencast mining where a mid-sized machine matches production without going oversized, and where manoeuvrability in pit corners matters. The Komatsu D375A-6 suits large opencast mines that need a bigger blade, more fuel range and faster travel for heavier overburden volumes. So match the machine to your work: Komatsu D275A-5R for medium-scale opencast mining, Komatsu D375A-6 for large-scale opencast production.
Komatsu D275A-5R Vs Komatsu D375A-6 Dozer Price, Technical Specifications & Features
The Komatsu D275A-5R is a 50.9-tonne mining crawler dozer powered by a 449 HP engine. Its 13.7 m³ blade handles heavy cuts, while the 840-litre fuel tank supports long working shifts. A 3-shank multi-shank ripper provides wider breaking coverage, while the variable giant single-shank reaches 1,420 mm for deeper work. The choice allows the same machine to handle different ground conditions. Tractor-only ground bearing pressure is 87.3 kPa and rises to about 118 kPa in full operating trim. Firm mining benches are better suited to this configuration than soft fill. The D275A-5R sits between the D155A-6 and D375A-6 in Komatsu's mining range. Its operating size makes it suitable for quarry and overburden work where construction-class machines are no longer sufficient. Mining contractors can consider this dozer machine when daily production requirements have moved beyond the D155A-6. The two ripper choices provide flexibility between deep breaking and wider coverage. Its blade capacity also supports substantial material movement during each pass. Buyers can therefore compare the required ripping depth, ground conditions and production volume before selecting this model for mining work.
The Komatsu D375A-6 is a 71.6-tonne mining crawler dozer with a 610 HP engine. It sits between the D275A-5R and D475A-5E0, providing a substantial production step without moving directly to Komatsu's largest model. Blade capacity reaches 18.5 m³ for heavy overburden movement. Operators can choose between a variable giant single-shank and a 3-shank multi-shank ripper. The single-shank configuration focuses on deeper breaking, while the multi-shank option provides broader coverage. Tractor-only ground bearing pressure is 108 kPa and rises to about 145 kPa in full operating trim. Ground clearance is 610 mm, helping the machine work across rough pit floors. A 1,200-litre fuel tank supports long shifts. Coal and mineral mining are the main applications. Mining companies handling large overburden volumes can consider this dozer machine when the D275A-5R no longer offers enough capacity. Its operating weight provides substantial pushing capability without reaching the scale of the D475A-5E0. Buyers can match the ripper configuration to the material being worked. The D375A-6 is suited to mining operations where blade volume, pushing force and ripping capability all form part of the regular work cycle.
64 differ · 13 identical
Key highlights: Komatsu D275A-5R vs Komatsu D375A-6 Dozer
Komatsu D275A-5R
Komatsu D375A-6
Engine Make
Komatsu SAA6D140E-5
Komatsu SAA6D170E-5
Rated Engine Power
335 kW (449 HP) @ 2000 rpm
455 kW (610 HP) @ 1800 rpm
Maximum Torque
NA
NA
Max Forward Speed
11.2 km/h
11.8 km/h
Max Drawbar Pull
NA
NA
Fuel Tank
840 L
1200 L
Overall Width
4300 mm
4695 mm
Track Shoe Width
610 mm
610 mm (standard; 710 mm / 810 mm extreme service optional)
Questions buyers ask about the Komatsu D275A-5R vs Komatsu D375A-6
Ans.
The Komatsu D375A-6 is bigger. It runs 610 HP against the D275A-5R's 449 HP, with an 18.5 m³ blade against 13.7 m³ and roughly 20 tonnes more operating weight.
Ans.
The Komatsu D275A-5R turns tighter. Its minimum turning radius is 3,900 mm against the D375A-6's 4,200 mm, which helps in tighter pit corners.
Ans.
The Komatsu D275A-5R sinks less. Its ground bearing pressure is lower than the D375A-6's, even though the D375A-6 has wider tracks to help spread its greater weight.
Ans.
The Komatsu D275A-5R has slightly more blade tilt adjustment, at 1,000 mm against the D375A-6's 970 mm. It is a small but real advantage on the smaller machine.
Ans.
The Komatsu D375A-6 travels faster in both directions. Its maximum forward speed is 11.8 km/h against the D275A-5R's 11.2 km/h, and it also reverses faster.
Komatsu D275A-5R Vs Komatsu D375A-6 - Compare Price & Availability Across 600+ Locations in India
Compare Komatsu D275A-5R Vs Komatsu D375A-6 price and availability across all major cities in India including Mumbai, Pune, Kolkata, Hyderabad, Chennai, Bengaluru, Delhi, Ahmedabad, Indore, Jaipur, Guwahati, and 600+ more locations.
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