Our Recommendation

Make
CATERPILLAR
Model
621K (S/N WTL00001 - Up) Tier4f/EU Stage5 (Tractor Scrapers)
Engine
DT
Year
2021-
New Search Print
Application
Recommendation
Capacity (ltr)
Engine (DT) (Cat C13; 304 kW)
  (a, b, c)
37.0
Transmission
VERKOL SAE 30 TO-4 (d, e, f)
97.0
Differential
VERKOL GT-8/75w90 (g, h, i, j)
158
Final Drive (each)
VERKOL GT-8/75w90 (k, l, m, n)
19.0
Coolant
  (o)
42.0
Hydraulics
VESTA 10w HD (p, q, r, s, t, u)
83.0
Grease Points
1
 QUAKERTEK VERKOMAX FGM 2 (v)
2
 QUAKERTEK VERKOMAX R 250
3
 QUAKERTEK VERKOMAX SG 2
Wheel bearings (Non - Driven Scraper wheels - each)
VERKOL SAE 30 TO-4 (w, x, y, z)
4.0
Brake Cooling Circuit
  (aa, bb)
33.0
Elevator Lower Rollers
VERKOL GT-8/75w90 (cc, dd, ee, ff)
Elevator Speed Reducer
VERKOL SAE 30 TO-4 (gg, hh, ii, jj)
Fan Bearings
 

Lubricant / Capacity Notes

a.
-18°C to 40°C
b.
Alternative recommendations, -30°C to 50°C: CK-4S 5W-40
c.
Alternative recommendations, -10°C to 50°C: EO CAT DEO-ULS 15W-40
d.
0°C to 50°C
e.
Alternative recommendations, -20°C to 10°C: TF CAT TDTO 10W
f.
Alternative recommendations, -15°C to 50°C: TF CAT TDTO TMS
g.
-30°C to 40°C
h.
Alternative recommendations, -30°C to 45°C: GL-5S 75W-140
i.
Alternative recommendations, -20°C to 40°C: VERKOL GT-8/80w90 EP / SALDUBA 80w90 LS / VERKOL GT-7/80w90 EP
j.
Alternative recommendations, -10°C to 50°C: VERKOL GT-7/85w140 EP
k.
-30°C to 40°C
l.
Alternative recommendations, -30°C to 45°C: GL-5S 75W-140
m.
Alternative recommendations, -20°C to 40°C: VERKOL GT-8/80w90 EP / SALDUBA 80w90 LS / VERKOL GT-7/80w90 EP
n.
Alternative recommendations, -10°C to 50°C: VERKOL GT-7/85w140 EP
o.
Mix ratio, 50% >-37°C
p.
-20°C to 50°C
q.
Alternative recommendations, -40°C to 40°C: HY CAT BIO HYDO
r.
Alternative recommendations, -20°C to 50°C: TF CAT TDTO 10W
s.
Alternative recommendations, -20°C to 40°C: EO CAT DEO-ULS 10W-30; WB CAT MTO 10W-30
t.
Alternative recommendations, -15°C to 50°C: EO CAT DEO-ULS 15W-40; TF CAT TDTO TMS
u.
Alternative recommendations, 10°C to 50°C: HY CAT HYDO 30; VERKOL SAE 30 TO-4
v.
Alternative recommendations: QUAKERTEK ATLANTA 2 / QUAKERTEK VERKOMAX R 250 / QUAKERTEK MOLYVERKOL 2
w.
-25°C to 15°C
x.
Alternative recommendations, -35°C to 15°C: TF CAT TDTO TMS
y.
Alternative recommendations, -15°C to 50°C: GO CAT FDAO SYN
z.
Alternative recommendations, -7°C to 50°C: TF CAT TDTO 60
aa.
-20°C to 50°C
bb.
Alternative recommendations, -40°C to 40°C: TF CAT TDTOS 0W-20
cc.
-30°C to 40°C
dd.
Alternative recommendations, -30°C to 45°C: GL-5S 75W-140
ee.
Alternative recommendations, -20°C to 40°C: VERKOL GT-8/80w90 EP / SALDUBA 80w90 LS / VERKOL GT-7/80w90 EP
ff.
Alternative recommendations, -10°C to 50°C: VERKOL GT-7/85w140 EP
gg.
-25°C to 15°C
hh.
Alternative recommendations, -35°C to 15°C: TF CAT TDTO TMS
ii.
Alternative recommendations, -15°C to 50°C: GO CAT FDAO SYN
jj.
Alternative recommendations, -7°C to 50°C: TF CAT TDTO 60

General Notes

There are no notes to display for this model

Oil Change Intervals

Engine (DT) (Cat C13; 304 kW)
Months Max
3
Hours Max
500
Transmission
Months Max
6
Hours Max
1000
Differential
Months Max
12
Hours Max
2000
Final Drive (each)
Months Max
12
Hours Max
2000
Coolant
Months Min
36
Months Max
72
Hours Min
6000
Hours Max
12000
Hydraulics
Hours Max
3000
Wheel bearings (Non - Driven Scraper wheels - each)
Months Max
12
Hours Max
2000
Brake Cooling Circuit
Months Max
12
Hours Max
2000
Elevator Lower Rollers
Months Max
12
Hours Max
2000
Elevator Speed Reducer
Months Max
12
Hours Max
2000