The CAT D6R — the SA-favourite medium bulldozer
For medium-class dozing work across South Africa — mining rehabilitation, forestry, quarry stockpile work, civils cut-and-fill — the CAT D6R is the machine most operators name first. Proven design, deep aftermarket, and a Certified Rebuild pipeline through Barloworld that effectively resets the machine's life.
D6R Series I, II, III — the story
- Series I — the classic. Simple, robust, thirsty. Cheap parts.
- Series II — better cab, improved hydraulics. Value sweet spot today at R 1.3m to R 1.7m.
- Series III — updated electronics, best fuel economy, best cab.
Buying a used D6R — the honest checklist
- Undercarriage — the single biggest cost item. Measure link pitch, sprocket tooth wear, roller flange condition and shoe wear.
- Final drives — listen for whine, feel for slip, look for oil weep at the sprocket hub.
- Powertrain — test in all forward and reverse gears, listen for torque converter slip under load.
- Blade and cutting edges — budget for edge replacement within 500 hours of purchase.
- Frame welds — repair welds on the C-frame or main frame are a warning sign.
Certified Rebuild — why it matters
Barloworld's Certified Rebuild programme takes a well-worn D6R and effectively resets its life — new powertrain, new hydraulics, new cab overhaul, new undercarriage. A Certified Rebuild D6R at R 2.5m to R 3.5m often outperforms a nominally younger machine at meaningfully lower total cost of ownership.