Doosan D20-30 / G20-30 Forklift Parts — Common Replacements & Compatibility
The Doosan D20-30 / G20-30 series (the 2,000–3,000 kg diesel and LPG counterbalance trucks, including the popular D20-30G and G20-30G builds) is one of the most widely serviced platforms in any busy parts department. Whether you run a single lift or a mixed fleet, the golden rule is the same before you order anything: confirm the exact model, the serial number, and the OEM part number stamped on the old component — small build differences (S2 vs S3 vs G, diesel vs LPG) change which part actually fits.
Browse the full Doosan forklift parts collection to see everything we stock for these trucks, or use the category sections below to jump straight to the most requested D20-30 / G20-30 replacements.
Mast, Cab & Operator Controls
Switches and gas struts are high-touch wear items on the D20-30 / G20-30 cab. A worn combination switch can cause flaky lights, signals, or wiper operation, while a tired gas spring stops the hood or cover from staying up safely during service.
- Combination Switch 301403-00001 — often listed for Doosan D15-30G / G15-30G.
- Gas Spring A211358 — often listed for Doosan D20 / 30G and D20 / 30S3.
See more in the electrical parts collection and the chassis parts collection.
Hydraulic & Charging Pump
The charging (supply) pump feeds the transmission and hydraulic circuit; weak lift speed, slow steering, or rough shifting often trace back to a worn pump. Because the D20-30 family was built in several variants, there are different pumps for the G build versus the S3 build — match the OEM number carefully.
- Charging Pump A213063 — often listed for Doosan D20-30S3 and G20-30E3 / P3 / S3.
- Charging Pump HC15583-80221 — often listed for Doosan D20-30G.
Browse related items in the hydraulic parts collection.
Brakes & Transmission
Brake and transmission wear parts are the most frequently replaced components on hard-working D20-30 / G20-30 trucks. The wet-brake friction plates, master cylinder, and transmission filter all see heavy duty cycles in daily shuttle work.
- Brake Master Cylinder 25595-40301 — often listed for Doosan D15-30G / G15-30G.
- Wet Brake Friction Plate D141112 — often listed for Doosan D20-30S2 / S3 / S5.
- Transmission Filter D140182 — often listed for Doosan D20-30S2 / S3 / S5.
Find more in the brake parts collection and the transmission parts collection.
Engine, Air & Fuel
Keeping the engine breathing and the driveline cool is essential for these trucks. A clogged air cleaner starves the engine, and a failing torque converter shows up as poor pull-away or stalling under load.
- Air Cleaner A213936 — often listed for Doosan D20-30S3 and G20-30S3.
- Torque Converter A372212 — often listed for Doosan D20-30G / 4TNE98 and G20-30G / G424.
Browse the engine parts collection and the filters collection for more.
Drivetrain & Electrical
Axle and electrical components round out a typical D20-30 / G20-30 rebuild. The integral drive axle housing and a healthy alternator keep the truck moving and charging reliably.
- Drive Axle Housing 24452-52001 — often listed for Doosan D20-30G.
- Alternator D167411A — often listed for Doosan / Daewoo DB33 and G424.
See more in the drive parts collection and the electrical parts collection.
How to Find the Right Part for Your Doosan D20-30 / G20-30
The fastest, most reliable way to order is to search by the OEM part number printed on the old component or in your parts manual — that removes guesswork about which variant you have. If you don't have the number, search by your model and then filter by component type (brake, hydraulic, transmission, and so on) to narrow the list. When in doubt, start from the full Doosan forklift parts collection and confirm the model and serial number against the listing before you buy.
Frequently Asked Questions
How do I confirm a part fits my Doosan D20-30 / G20-30?
Match three things: the exact model code (for example D20-30S3 vs D20-30G), the truck's serial number, and the OEM part number on the old part. Build variants and diesel-versus-LPG differences can change the correct component, so always cross-check the OEM number rather than relying on the model alone.
Are Doosan and Daewoo parts interchangeable?
Often, yes. Doosan acquired the Daewoo forklift line, so many components carry Daewoo casting marks or are listed under both badges (the alternator above, for instance, references Daewoo DB33). Confirm with the OEM number, but a Daewoo-stamped part is frequently the same item.
What are the most common wear parts on these trucks?
For the D20-30 / G20-30 family the usual replacements are brake friction plates, the transmission filter and charging pump, air cleaner elements, and cab switches. These are the parts that come up most often in routine service and rebuilds.
Can't find the right part? Send us a part request, and we'll help you look it up.
