1. QSK19 Oil Pan Fillet Change
Kathryn McCarthy
5/20/2016
Cummins Confidential

2. Reason for change
The changes being made to the oil pan are a result of oil pan cracking issues. A previous change to the tooling process significantly increased the stress at a certain region of the oil pan, which was causing failures.
Cummins Confidentiall

3. Description of Change
The change to the oil pan includes restoring the corner fillet radii to what it was prior to the 2013 casting tooling revision and increasing a fillet radii on the outside of the pan rail from ½” to 1” to further reduce stress at the failure region.
Insert Data Classification

4. Part Numbers Affected Existing Part Number New Part Number
Option Number R
OP4037
OP 4102
OP 4084
OP 4090
OP 4111
Cummins Confidential

5. 3024391R – Current Product Part
Cummins Confidential

6. 3024391R – Proposed Design Change
Cummins Confidential

7. Dimensional Changes to Casting
Depth, width, draft angle, and height of the oil pan will not change
Boss locations and machined holes are not changing
Only change is at the location where the rear vertical edge merges into the outside of the pan rail
Outlined areas will be modified
Cummins Confidential

8. Change #1 – Sidewall Fillet Radii Increase
Fillet radius at the top of the oil pan side walls will be increased from 0.5” to 1”
Width of flat section on the outside of the pan rail changed from 1.44” to 0.935”
Cummins Confidential

9. Change #1 – Sidewall Fillet Radii Increase
½” wall fillet radius
1” wall fillet radius
Cummins Confidential

10. Change #1 – Sidewall Fillet Radii Increase
Change will not impact the mounting bolt through holes
Spot faces will be added if necessary
Cummins Confidential

11. Change #2 – Larger Corner Fillet
Corner fillet will extend out further
Cummins Confidential

12. Change #2 – Larger Corner Fillet
Length of flat section at the corner fillet reduced from 2.35” to 1.70”
Cummins Confidential

13. Change #3 Rear Vertical Edge Fillet
Current Production Part
New Proposed Design
Insert Data Classification

14. Change #3 Rear Vertical Edge Fillet
Current Production Part
New Proposed Design
Insert Data Classification

15. Feedback Requested
Please respond to the CEAF response link by Friday, June 3rd.
For questions, please contact Kathryn McCarthy.
Insert Data Classification