Product Description
Interstate-McBee M-5264569 Turbo Oil Drain Gasket – 1989–2002 5.9L Cummins
High-quality replacement gasket for the turbocharger oil drain interface on the 5.9L Cummins B-Series. Seals the drain adapter to the engine block/drain port to prevent oil weeps and seepage. Sold individually.
- Direct replacement: OE-equivalent form, fit, and sealing performance.
- Correct fitment: Matches Cummins reference 5264569 for 12-valve (1989–1998) and 24-valve (1998.5–2002) applications.
- Service friendly: Ideal when swapping turbos, servicing drain tubes, or fixing oil leaks at the drain flange.
- Value: Interstate-McBee quality at a cost-effective price.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-5264569 |
| OEM Reference | Cummins 5264569 |
| Location | Turbocharger oil drain—adapter/flange to engine block drain port |
| Material | High-temp gasket composite (OE-equivalent) |
| Sold As | Each (1 gasket) |
What’s Included
- (1) Turbo oil drain gasket, P/N M-5264569
Vehicle Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 with 5.9L Cummins B-Series
- 1989–1998: 12-valve (6BT)
- 1998.5–2002: 24-valve (ISB)
- Other 5.9L B-Series applications where Cummins 5264569 is specified (confirm by ESN).
Install Notes
- Clean both mating surfaces thoroughly; remove old gasket material and oil residue.
- Dry-fit to confirm alignment. Do not over-torque the drain flange bolts.
- Typically installed dry; if using sealant, apply a very thin film only if the service manual allows.
- Inspect the drain tube and O-ring (if equipped at the turbo end) for wear or damage.
Recommended/Related Parts
- Turbo oil drain tube/adapter (inspect and replace if pitted or bent)
- Turbo oil feed line sealing washers
- Turbo mounting hardware kit
- Brake-clean and gasket scraper for prep
Why Buy From CPP Diesel
- ESN-verified fitment support from diesel specialists
- Fast shipping and competitive pricing
- In-stock coverage of complementary B-Series sealing components
FAQ
Does this fit both 12-valve and 24-valve 5.9L Cummins?
Yes. This gasket corresponds to Cummins 5264569 and fits 1989–1998 12-valve and 1998.5–2002 24-valve engines where that reference is specified.
Do I need sealant with this gasket?
Generally no—install it dry on clean, flat surfaces. If your service manual permits a sealant, use only a very light film.
How many are required?
One gasket is used at the drain adapter-to-block interface. Inspect other seals (such as turbo-end O-rings) separately.
