Description
Exhaust manifold gasket assembly (sleeve + gasket) for Caterpillar 3406E, C15, C16, and C18 inline-six on-highway and industrial diesels. Replaces Caterpillar 281-8261 (also 2818261) and 262-9103 (also 2629103). The sleeve seals the exhaust manifold flange-to-port joint where head shake and thermal cycling open up the standard gasket alone.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 331374 |
| Part Type | Exhaust Manifold Gasket Assembly (Sleeve + Gasket) |
| Engine Compatibility | Caterpillar 3406E, C15, C16, C18 |
| Replaces OEM | Cat 281-8261, 262-9103 |
Kit Includes
- Exhaust manifold gasket — 1
- Exhaust port sleeve — 1
Cross References
This part replaces or is equivalent to the following part numbers:
- Caterpillar: 281-8261 (2818261), 262-9103 (2629103)
Applications
This exhaust manifold gasket assembly fits the following Caterpillar engines:
- Cat 3406E (1993-2003)
- Cat C15 / C15 ACERT (2003-2016)
- Cat C16 (1998-2003)
- Cat C18 industrial (2007+)
Each engine uses six per cylinder bank — order quantity to match.
Replace all gaskets and sleeves on the manifold during service. Verify your engine serial number before ordering to confirm fitment.









