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Better Than OE — Built for Power, Performance, and Durability

Upgrade your Caterpillar C15 or 3406E engine with the Jereh Stainless Steel Turbo Manifold, engineered for mid-mount installations in most Peterbilt and Kenworth trucks. Crafted from corrosion-resistant stainless steel, this manifold offers unbeatable durability, superior exhaust flow, and stronger turbo response—an essential upgrade for heavy-duty hauls and high-performance applications.

Unlike fragile OE cast-iron manifolds that can crack under stress, the Jereh manifold features a heavy-duty casting and enlarged port design for maximum heat resistance, power, and reliability.

Key Advantages

• Premium Stainless-Steel Build – Rust-proof and thermal-resistant for lasting performance.
• High-Flow Port Design – Improves exhaust flow, boosting horsepower and turbo efficiency.
• Crack-Resistant Durability – Handles extreme temperatures and vibrations better than OE.
• Mid-Mount Direct Fit – Tailored for Caterpillar C15/3406E engines in Peterbilt and Kenworth trucks.
• Complete Kit Options – Includes A286 turbo studs; optional spacers, gaskets, and stud kits available.
• No Core Exchange Required – Brand-new part, ready to install—no returns or delays.

The pipe is made from high-grade 316 stainless steel with a heavy-gauge construction, ensuring correct alignment and an exact fit. It also features extra-strength tabs for installation.

Number: 4967123 Large Pipe

The pipe is made from high-grade 316 stainless steel with a heavy-gauge construction, ensuring correct alignment and an exact fit. It also features extra-strength tabs for installation.

Number: 4393525 Small Pipe

This ECM is designed for engines operating on the CM870 / CM871 platforms.

Key Features:
– New CM870 / CM871 ECM
– Supports heavy-duty Cummins configurations
– Suitable for multiple on-highway applications

Cross-Reference Numbers:
– 3684275
– 3684275RX
– 3684275NX