Description
PAI 641296OEM thermoplastic front-sump oil pan for the Detroit Diesel DD13, replacing OEM A4710108113 and the related A4710100113 / A4710105113 service numbers. The molded composite pan with prominent sealing ridges holds 40 qt of oil and uses the same 22-bolt mounting pattern as the OEM pan, so it bolts up without modification on Cascadia and Western Star DD13 chassis.
Signs You Need a New Oil Pan
- Visible oil pooling beneath the engine
- Cracked or impact-damaged oil pan from road debris
- Stripped or damaged drain-plug threads
- Persistent oil weep along the pan-to-block parting line
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 641296OEM |
| Part Type | Front Sump Oil Pan |
| Engine Compatibility | Detroit Diesel DD13 |
| Material | Thermoplastic composite |
| Capacity | 40 qt |
| Dimensions | 44.875 in L x 15.875 in W |
| Mounting Holes | 22 |
| Mounting Bolt Torque | 22–26 ft-lb |
| Approx. Weight | ~28 lb |
| Gasket Included | No |
| Condition | New |
Kit Includes
- Front-sump oil pan — PAI 641296OEM (replaces Detroit A4710108113)
- Mounting bolts (qty 18)
Pan gasket is not included — order Detroit Diesel oil-pan gasket separately when servicing.
Cross References
This part replaces or is equivalent to the following part numbers:
- Detroit Diesel: A4710108113, A4710100113, A4710105113
- PAI Industries: 641296, 641296OEM
Applications
This front-sump oil pan fits the following engine:
- Detroit Diesel DD13
Representative vehicles using the DD13:
- Freightliner Cascadia (DD13)
- Freightliner M2 106 / 112 (with DD13)
- Western Star 4700, 4900, 5700XE (with DD13)
Confirm sump position (front vs. rear) and OEM pan part number before ordering — the DD13 has been built with multiple oil-pan configurations across Cascadia model years.
