utb universal 643
![]() | 1988 - 2004
3 SeriesUtility tractor | 1988 - 2004 | 3 Series | Utility tractor |
|---|---|---|---|---|
1988 - 2004 | ||||
3 Series | ||||
Utility tractor | ||||
1988 - 2004 | |
|---|---|
3 Series | |
Utility tractor |
Transmission options | |
|---|---|
8-speed constant mesh | |
12-speed creeper | |
8-speed shuttle |
Transmission | |
|---|---|
Type | constant mesh |
Gears | 8 forward and 2 reverse |
Clutch | dry disc |
Oil capacity | 24.3 qts
23.0 L |
Four gears (1-4) plus reverse (R) in two ranges (low and high). | |
Speeds | |
|---|---|
With 16.9-30 rear tires. | |
![]() |
Transmission | |
|---|---|
Type | creeper |
Gears | 12 forward and 3 reverse |
Clutch | dry disc |
Optional creeper adds a third range to the basic transmission. | |
Speeds | |
|---|---|
With 16.9-30 rear tires. | |
![]() |
Transmission | |
|---|---|
Type | shuttle |
Gears | 8 forward and reverse |
Recommended Products
Advertisement · Featured Tractor-Related Products

Accessories
Heavy Duty Farm Work Gloves
4.7/5 (256)
Essential protective gear for farm work, durable and slip-resistant
glovessafety+2
Check Price
Link to amzn.to

On Sale
Tractor
Transmission Oil Filter Element
5.0/5 (10)
Durable: Built to strict quality control standards, the Filter Element is durable and practical, featuring stable characteristics and high reliability.
Oil Filter
Check Price
Link to amzn.to

Hot Pick
Accessories
John Deere Original Equipment Cool-Gard II PRE-Mix
5.0/5 (16)
COOL-GARD II PRE-MIX, 1 GAL;3.78L. DO NOT ADD WATER. Prediluted Engine Coolant. Heavy-duty, low-silicate, high performance antifreeze/coolant. This is a OEM John Deere Part.
Check Price
Link to amzn.to

Hot PickOn Sale
Accessories
Hy-Gard Transmission & Hydraulic Oil
5.0/5 (15)
Genuine OEM Part Number: TY22000 An exclusive formulation, specifically designed to protect John Deere transmissions, final drives, and hydraulic systems.
Check Price
Link to amzn.to
* This page contains affiliate links, purchases may generate revenue for this site


