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Our Recommendation

Make
CATERPILLAR
Model
844K Tier4f (S/N M4R00001 - Up) (Wheeled Bulldozers)
Engine
DT
Year
2021-
Application
Recommendation
Capacity (ltr)
Engine (DT) (Cat C27; 27.03L, 561kW)
  (a, b)
75.0
Transmission (Powershift)
VERKOL SAE 30 TO-4 (c, d, e, f, g)
110
Coolant
  (h)
208
Hydraulics (Implement & Hydraulic Fan)
VESTA 10w HD (i, j, k, l, m)
261
Hydraulics (Steering & Brakes)
VESTA 10w HD (n, o, p, q, r)
132
Grease Points
1
QUAKERTEK VERKOMAX FGM 2 (s)
2
QUAKERTEK VERKOMAX R 250
3
QUAKERTEK VERKOMAX SG 2
Air Conditioning Compressor (R-134a)
 
Centralised Lubrication System (Autolube)
1
QUAKERTEK VERKOMAX FGM 2 (t)
2
QUAKERTEK VERKOMAX R 250
3
QUAKERTEK VERKOMAX SG 2
Front Differential & Final Drive
VERKOL SAE 50 TO-4 (u, v, w, x, y)
267
Front Differential & Final Drive (Hydraulic Oil Additives)
 
4.0
Rear Differential & Final Drive
VERKOL SAE 50 TO-4 (z, ba, bb, bc, bd)
257
Rear Differential & Final Drive (Hydraulic Oil Additives)
 
4.0

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
-18°C to 40°C
b.
Alternative recommendations, -10°C to 50°C: EO CAT DEO-ULS 15W-40
c.
0°C to 35°C
d.
Alternative recommendations, -20°C to 43°C: TF CAT TDTO TMS
e.
Alternative recommendations, -20°C to 10°C: TF CAT TDTO 10W
f.
Alternative recommendations, 0°C to 35°C: VERKOL SAE 30 TO-4
g.
Alternative recommendations, 10°C to 50°C: VERKOL SAE 50 TO-4
h.
Mix ratio, 50% >-37°C
i.
-20°C to 40°C
j.
Alternative recommendations, -30°C to 45°C: HY CAT BIO HYDO 46
k.
Alternative recommendations, -20°C to 40°C: TF CAT TDTO 10W; EO CAT DEO-ULS 10W-30
l.
Alternative recommendations, -15°C to 50°C: TF CAT TDTO TMS
m.
Alternative recommendations, 0°C to 50°C: HY CAT HYDO 30
n.
-20°C to 40°C
o.
Alternative recommendations, -30°C to 45°C: HY CAT BIO HYDO 46
p.
Alternative recommendations, -20°C to 40°C: TF CAT TDTO 10W; EO CAT DEO-ULS 10W-30
q.
Alternative recommendations, -15°C to 50°C: TF CAT TDTO TMS
r.
Alternative recommendations, 0°C to 50°C: HY CAT HYDO 30
s.
Alternative recommendations: QUAKERTEK ATLANTA 2 / QUAKERTEK VERKOMAX R 250 / QUAKERTEK MOLYVERKOL 2
t.
Alternative recommendations: QUAKERTEK ATLANTA 2 / QUAKERTEK VERKOMAX R 250 / QUAKERTEK MOLYVERKOL 2
u.
-10°C to 50°C
v.
Alternative recommendations, -25°C to 22°C: TF CAT TDTO TMS
w.
Alternative recommendations, -25°C to 0°C: TF CAT TDTO 10W
x.
Alternative recommendations, -20°C to 20°C: VERKOL SAE 30 TO-4
y.
Alternative recommendations, -10°C to 50°C: VERKOL SAE 50 TO-4
z.
-10°C to 50°C
ba.
Alternative recommendations, -25°C to 22°C: TF CAT TDTO TMS
bb.
Alternative recommendations, -25°C to 0°C: TF CAT TDTO 10W
bc.
Alternative recommendations, -20°C to 20°C: VERKOL SAE 30 TO-4
bd.
Alternative recommendations, -10°C to 50°C: VERKOL SAE 50 TO-4

Oil Change Intervals

Engine (DT) (Cat C27; 27.03L, 561kW)
Months Max
6
Hours Max
500
Transmission (Powershift)
Months Max
12
Hours Max
1000
Coolant
Hours Min
6000
Hours Max
12000
Hydraulics (Implement & Hydraulic Fan)
Months Max
12
Hours Max
2000
Hydraulics (Steering & Brakes)
Months Max
12
Hours Max
2000
Front Differential & Final Drive
Months Max
12
Hours Max
2000
Front Differential & Final Drive (Hydraulic Oil Additives)
Months Max
12
Hours Max
2000
Rear Differential & Final Drive
Months Max
12
Hours Max
2000
Rear Differential & Final Drive (Hydraulic Oil Additives)
Months Max
12
Hours Max
2000