Komatsu D85PX-18

Configuration: D85PX-18, straight tilt dozer (5.9 m³) with long drawbar, 910 mm single-grouser shoes, ROPS/FOPS cab; EPA Tier 4 Final

Dimension diagram

Spec	Value	Source
Operating weight	29,300 kg	Published: 29,300 kg Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 D85PX-18 straight; includes blade, full fuel, ROPS/FOPS cab, drawbar (64,600 lb).
Shipping / tractor weight	25,810 kg	Published: 25,810 kg Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Tractor; blade lift cylinders, 10% fuel, ROPS/FOPS cab, drawbar (56,900 lb).

Spec	Value	Source
Overall length	6,435 mm	Published: 6,435 mm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Dim. A, straight tilt dozer with long drawbar.
Overall width	Not published	Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Width over tracks is not printed. Blade width 4,355 mm.
Overall height	Not published	Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Not labelled in the brochure. The dimension table prints C1 3,322 mm, C2 3,498 mm and D 3,290 mm without definitions.
Track gauge / tread	2,250 mm	Published: 2,250 mm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Dim. B.
Track length on ground	3,480 mm	Published: 3,480 mm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Dim. E.
Shoe / track width	910 mm	Published: 910 mm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Dim. G, single grouser standard.
Ground clearance	450 mm	Published: 450 mm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25

Spec	Value	Source
Undercarriage type	Crawler (steel tracks)	Published: Crawler (steel tracks) Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25
Track rollers / shoes per side	8 track rollers per side, 45 shoes per side	Published: 8 track rollers per side, 45 shoes per side Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Carrier roller count not published.

Spec	Value	Source
Ground pressure	41 kPa	Published: 41 kPa Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 ISO 16754, straight tilt dozer with long drawbar (0.41 kg/cm², 5.9 psi). Tractor only: 36 kPa.

Spec	Value	Source
Engine model	Komatsu SAA6D125E-7	Published: Komatsu SAA6D125E-7 Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 EPA Tier 4 Final.
Net power	197 kW	Published: 197 kW Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 ISO 9249 / SAE J1349 (264 HP).
Gross power	199 kW	Published: 199 kW Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 SAE J1995 (267 HP).
Displacement	11.04 L	Published: 11.04 L Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25
Rated speed	1,900 rpm	Published: 1,900 rpm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25

Spec	Value	Source
Pump / aux flow	331 L/min	Published: 331 L/min Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 At rated engine rpm (87.4 US gal/min).
System / relief pressure	22.6 MPa	Published: 22.6 MPa Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 3,270 psi.

Spec	Value	Source
Blade capacity	5.9 m³	Published: 5.9 m³ Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Straight tilt dozer, SAE J1265 (7.7 yd³).
Blade / moldboard width	4,355 mm	Published: 4,355 mm Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 Blade height 1,400 mm. Minimum turning radius 2.2 m.
Max travel speed	10.1 km/h	Published: 10.1 km/h Komatsu D85EX/EXi/PX/PXi-18 brochure, EN-D85BR01-0922-V2 (09/2022, EPA Tier 4 Final). Retrieved 2026-10-25 3rd forward (6.3 mph); 3rd reverse 13.0 km/h.

Compare side by side with John Deere 950 P-Tier and Caterpillar D7