Midland Railway of Western Australia D Class
D19 shunting at Arrino, 1943
Type and origin Power type Steam Builder Baldwin Locomotive Works, Philadelphia, USA Serial number 53001–53002
Specifications Configuration: ​  • Whyte 4-8-0  • UIC 2'D Gauge 3 ft 6 in (1,067 mm) Driver dia. 3 ft 10.5 in (1,181 mm) Length 55 ft (16.76 m) (incl tender) Loco weight 78.85 long tons (80.12 t; 88.31 short tons) (incl tender) Firebox: ​  • Grate area 17 sq ft (1.6 m2) Boiler pressure 160 psi (1,100 kPa) Cylinder size 18 in × 23 in (457 mm × 584 mm)
Performance figures Tractive effort 22,522 lbf (100.18 kN)
Career Number in class 2 Numbers D19 - D20 First run 1920

The MRWA D class was a class of 4-8-0 type steam locomotives built by Baldwin Locomotive Works in Philadelphia, USA, for the haulage of goods traffic on the Midland Railway of Western Australia (MRWA).

The two members of the A class, nos D19 and D20, were ordered in 1919 and completed in 118 working days. They were dismantled, boxed, and shipped on 5 April 1920, before entering service later that year.^[1]

Both locomotives survived the dieselisation of the MRWA in 1958 as emergency power. They were written off in April 1963, and scrapped soon afterwards.^[2]

• List of Western Australian locomotive classes
• Locomotives of the Western Australian Government Railways

• Media related to MRWA D class at Wikimedia Commons

v t e Locomotives of the Midland Railway Company of Western Australia
Steam	Walkaway Fremantle/Geraldton B class Martin engines P class C class D class A class
Diesel-Hydraulic	E class
Diesel-Electric	F class G class
List of Western Australian locomotive classes Midland Junction railway station Rail transport in Western Australia Western Australian Government Railways