Product Description
Interstate-McBee M-3928624 Turbo Oil Drain O-Ring — 03–18 5.9L/6.7L Cummins
OEM-style turbo oil drain O-ring for 2003–2018 5.9L & 6.7L Cummins ISB. This seal fits the one-piece drain nipple at the engine block and helps prevent oil seepage at the turbo drain tube. Sold individually—order quantity 2 per engine.
- Direct-fit sealing: Matches OE dimensions for a tight, leak-free fit at the drain tube/block interface.
- Durable elastomer: Built for heat and oil resistance in high-temp turbo areas.
- Aftermarket value: Interstate-McBee quality at a lower cost than OEM boxed parts.
Specifications
| Interstate-McBee P/N | M-3928624 |
|---|---|
| OEM Cross-Reference | Cummins 3928624 |
| Application | Turbocharger oil drain tube O-ring (block end / drain nipple) |
| Quantity | Sold individually; 2 required per engine |
| Position | Turbo oil drain, engine block interface |
What’s Included
- (1) Turbo oil drain O-ring seal (order 2 per engine)
Vehicle Fitment
Always verify using your engine serial number (ESN) when possible.
- Dodge/Ram 2500 & 3500 (5.9L Cummins): 2003–2007
- Ram 2500/3500/4500/5500 (6.7L Cummins): 2007.5–2018
- Notes: Fits the one-piece, press-fit drain nipple at the block. Many flexible drain tube kits also use two O-rings at the block end.
Install Notes
- Lightly lubricate O-rings with clean engine oil before installation.
- Inspect/clean the drain nipple and tube; replace damaged hardware as needed.
- Confirm the tube is fully seated and evenly engaged to avoid pinching the O-rings.
Warranty
Interstate-McBee new engine parts are covered under the manufacturer’s warranty. Typical coverage for diesel engine parts is up to 24 months from installation; see policy for details.
Why Buy From CPP Diesel
- Fast shipping and expert Cummins fitment support
- ESN-verified assistance to eliminate guesswork
- Hassle-free returns
FAQ
How many O-rings do I need?Two are required at the engine block drain connection. O-rings are sold individually.
Where does this O-ring install?
At the bottom of the turbo oil drain tube where it inserts into the block’s press-fit drain nipple.
Will it fit both 5.9L and 6.7L Cummins?
Yes—listed for 2003–2007 5.9L and 2007.5–2018 6.7L Ram Cummins applications.
Is this a genuine Cummins part?
This listing is for Interstate-McBee M-3928624, an OEM-style aftermarket replacement that cross-references Cummins 3928624.
Product Videos
Custom Field
YEAR 2003-2018
MAKE DODGE
ENGINE 5.9L,6.7L
