1. Oil Pans with Full Circumference Clamping Plates for ISB6
Oil Pans with Full Circumference Clamping Plates for ISB6.7 Bus Applications
ISB and ISB OP 9655 and OP 9655
RPS Project # MSUS-8YQH46

2. Project Scope
Change Summary: Full perimeter clamping plates will be added to oil pans used on bus applications. The OP option on the engine specs for bus applications will need to be changed. Bus fuel ratings will only be compatible with oil pans with full perimeter clamping plates. Background: To increase the residual cap screw torque and break away torque on the cap screws used to attach the oil pan to the engine. Implementation Strategy and Date: Fix as fails for engines built before plant implementation. Plant Implementation February 25, 2015

3. Option Change Table Current Options New Options OP9655 (front sump)
OP9656 (rear sump)
OP9858 (rear sump)
Cummins Confidential

4. Introduction/ Background
Scope:
Address oil leaks from oil pan gasket joint on ISB
Summary:
Oil leaks at random locations around oil pan.
Leak may only appear as a wet or damp spot; will not necessarily form a drip
Cummins Confidential
* - Appendix for supplier related issues (slide # 64)

5. Current Design: Oil pan with corner clamping plates
Current Option: OP9655

6. Proposed Design: Oil pan with full perimeter, double thickness, clamping plates
Proposed Option: OP9858

7. Current product (4.76 mm) clamping plates compared to proposed (9.52 mm.) clamping plate.
Current product
(4.76 mm)
Proposed plate
(9.52 mm.)