Product Description
Interstate-McBee MCB6BEXPKS Expansion Plug Kit – 89-02 5.9L Cummins STORM Block
The Interstate-McBee MCB6BEXPKS Expansion Plug Kit is a complete aftermarket block plug set designed for 1989–2002 5.9L Cummins STORM block engines. This kit replaces worn or leaking factory plugs with heavy-duty steel expansion plugs, ensuring a proper seal for cooling passages and extending the life of your rebuild or overhaul project.
- OEM-equivalent fit: Direct replacement for factory Cummins expansion plugs.
- Complete kit: Includes all block plugs needed for a 5.9L STORM block rebuild.
- Durable construction: Precision-manufactured plugs designed to resist corrosion and leakage.
- Aftermarket value: Reliable Interstate-McBee quality at a fraction of OEM pricing.
Specifications
| Part Number | MCB6BEXPKS (Interstate-McBee) |
|---|---|
| Application | 5.9L Cummins STORM block |
| Model Years | 1989–2002 |
| Contents | Complete set of block expansion plugs |
| Material | Steel expansion plugs |
What’s Included
- (1) Complete expansion plug kit for Cummins STORM block 5.9L engines
Vehicle Fitment
Always verify by engine serial number (ESN) for best results.
- Dodge Ram 2500/3500 5.9L Cummins
- 1989–1993 12-Valve (VE pump engines)
- 1994–1998 12-Valve (P-pump engines)
- 1998.5–2002 24-Valve ISB (STORM block design)
- Industrial/Commercial: Cummins 5.9L STORM block variants in equipment and stationary engines.
Install Notes
- Clean block plug bores thoroughly before installation.
- Use sealant where recommended by Cummins service manual.
- Drive plugs evenly to avoid distortion and ensure proper sealing.
Warranty
Interstate-McBee new engine parts are backed by manufacturer warranty. Plug kits are covered against defects in materials and workmanship under normal service conditions.
Why Buy From CPP Diesel
- Complete Cummins rebuild support with verified fitment
- Fast shipping and competitive pricing
- Expert customer service from diesel specialists
FAQ
Does this kit fit all 5.9L Cummins engines from 1989–2002?Yes—this expansion plug kit is designed for the STORM block 5.9L Cummins used in Dodge Ram 2500/3500 trucks between 1989–2002. Always verify with your ESN.
What makes the STORM block different?
The STORM block is a reinforced version of the Cummins 5.9L used in late 1990s–early 2000s engines. It requires a specific set of plugs to ensure proper sealing and reliability.
Is this an OEM Cummins kit?
No—this is an aftermarket kit by Interstate-McBee. It is built to OEM-equivalent specifications for fit, function, and durability, at a more affordable price.
Do I need special tools to install?
Standard installation tools are sufficient, though care should be taken to drive plugs straight and seat them fully. Always follow Cummins service manual recommendations.
Can this be used in industrial Cummins engines?
Yes—many industrial 5.9L STORM block engines use the same plug kit. Confirm by ESN before ordering.
Product Videos
Custom Field
YEAR 1989-2002
MAKE DODGE
ENGINE 5.9L
