• Rigid chassis
  • WhichTractor size: Utility
  • No lab test on file
  • 1968–1971
  • 522 built

WhichTractor size, not the maker’s category

David Brown 3800 Selectmatic Transmission specs

10 transmission values on record for the 3800 Selectmatic.

Engine power, claimed · gross or net not stated

42.0 hp

31.3 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “David Brown 3800”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

How fast will a 3800 Selectmatic go?

The fastest speed on record for a 3800 Selectmatic is 15.5 mph (25 km/h). The gearbox itself is not on record yet.

Transmission — 3800 Selectmatic Transmission
Drive2WD
Forward gears6–12the article lists alternatives
Reverse gears2–4the article lists alternatives
Transmission as described6 forward/2 reverse and 12 forward/4 reverse
ClutchPedal-operated, dry and two-stage BORG & BECK double clutch
Top speed forward15.5 mph · 25 km/h
Top speed reverse9.1 mph · 14.6 km/hhighest reverse speed printed in the article's speed tables
SteeringMechanical recirculating ball steering
Differential lockPedal-operated differential lock
Front axleOscillating DAVID BROWN telescopic front axle

Source · Traktorenlexikon, “David Brown 3800”

Sources and how this page was built

10 transmission values from Traktorenlexikon, “David Brown 3800”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: David Brown 3800 — CC BY-SA 4.0, WIKIBOOKS-TL-115982 · revision 990057. Wikibooks contributors (Traktorenlexikon). Original document