cummins

1. #1Truck Shop2022-02-26 21:30

   Could be either/or BCII or BCIII. Single oil filter or two.

2. #2petepilot2022-02-27 11:31

   Single oil fltr.full flow cooling.stamped ntc 300 but not standard looking cummins tag no cpl srmped

3. #3Truck Shop2022-02-27 11:49

   BCII 300, a lot of 300's were built. Did you look on the pump for a tag? Should have CPL stamped there.

4. #4DMiller2022-02-27 13:16

   LFC was first BC IIIs IIRC.

5. #5Truck Shop2022-02-27 13:19

   BCIV's very late 1985/early 86.

6. #6DMiller2022-02-27 13:55

   Thanks, did NOT RC!!

7. #7mekanik2022-02-27 14:57

   Can you post a pic of the oil cooler that shows the top ans side of the front Hsg?

8. #8Truck Shop2022-02-27 15:59

   You looking for thermostat relief? The large brass type are non existent, obsolete.

9. #9mekanik2022-02-27 17:14

   The Big cam one had a 1 1/4" hex holding in a bypass valve on the side of the housing. The Big Cam 2 had a 1 3/4" brass hex thermostat on top of the front oil cooler housing and the Big cam 3 had a two bolt flange with two 3/8" bolts holding the thermostat in on top of the front housing.

10. #10Truck Shop2022-02-27 18:22

    The two bolt I believe is the only one still offered. Big thing is any of those can be converted to the BCIII oil cooler and oil pump for low pressure system. Not all BCII's were low psi oil system with sensing line. Some later BCII's had stamped steel oil pan most cast. BCI's used log type exhaust manifold but a lot were converted to pulse type.