Engine Cooling System

4.3L (VIN W)

With or Without Air Conditioning

12.3

--

13

5.0L (VIN M)

With Air Conditioning

17

--

18

Without Air Conditioning

16.6

--

17.5

5.7L (VIN R)

With Air Conditioning

19

--

20

Without Air Conditioning

16.6

--

17.5

With Air Conditioning (C 3500HD)

25.5

--

27

Without Air Conditioning (C 3500HD)

25

--

26.5

6.5L (VIN F and S)

With or Without Air Conditioning

26

--

27.5

7.4L (VIN J)

With Air Conditioning

26

--

27.5

Without Air Conditioning

23.5

--

25

With Air Conditioning (C 3500HD)

27

--

28.5

Without Air Conditioning (C 3500HD)

25

--

26.5