Replacement Oil Pan Isolation Seal for Caterpillar ® 3406E/C15/C16 Applications Cross Reference OEM Cross References: 1685248

What’s Included

Oil Pan Gasket / Isolator Seal | Caterpillar C15 | 1685248

This oil pan gasket from Interstate-McBee is engineered to deliver a secure, leak-proof seal for Caterpillar C15 engines. Manufactured from high-quality, durable materials, it’s designed to withstand extreme temperatures and pressures while preventing oil leaks and protecting internal engine components. Whether you’re performing routine maintenance or a full rebuild, this gasket ensures long-lasting performance and reliability.

This replacement gasket is brand new and compatible with Caterpillar 3406E, C15, and C16 engine applications. These heavy-duty diesel engines are known for their performance in demanding industries like trucking, construction, and industrial equipment. The 3406E features advanced electronic controls for improved efficiency, while the C15 and C16 are recognized for their high horsepower and torque output—making seal integrity even more critical.

Product Features:

• Replaces OE Part Number: 1685248

• Provides a tight, durable seal for the oil pan

• Made from high-grade materials for extended service life

• Engineered to meet or exceed OEM performance standards

• Ideal for use in high-load, high-performance diesel applications

Fits Engine Models: Caterpillar 3406E, C15, C16
Brand: Interstate-McBee
Condition: New – No Core Required
Application: Heavy-duty diesel engines in trucking, construction, and industrial sectors

Trust Heavy Duty Kits to supply premium Interstate-McBee engine gaskets and seals built for the toughest jobs.

Application & Fitment

• Engine Make: Caterpillar
• Engine Model / Application: 3406E/C15/C16

Confirm the original part number and engine identification before ordering. Where applicable, also verify serial-number range, production year, piston style, bearing size or other configuration notes shown in the product information.

Part Numbers & Cross References

• OEM Cross Reference: 1685248
• Interstate-McBee Reference: M-1685248

Need Help Confirming Fitment?

Use the engine model, serial number and original part number when checking compatibility. For kits and sets, review the complete component breakdown above before ordering because contents can vary by engine configuration.