DTech Cummins ISX DOHC Stage 2 Cylinder Head | DT5658283S2 - US Market Only The DTech Cummins ISX DOHC Stage 2 Cylinder Head, part number DT5658283S2, is designed for Cummins ISX dual overhead cam applications and provides a strong replacement choice for heavy-duty ISX repair needs. Built as a new heavy-duty diesel cylinder head and cross-referenced to OEM part number 5658283, this product helps technicians source the right replacement quickly and install with confidence. Choose this Cummins ISX DOHC cylinder head to support dependable operation in hard-working trucks while maintaining DTech value. With DTech, you get better parts better value, backed by Alliant Power. DTech provides the quality you can trust stronger than before. Stage Indicator: Stage 2: Excellent (EH / HE) – Inconel Valve Upgrade Stage Description: Engineered for demanding duty cycles, this cylinder head features an Inconel intake or exhaust valve upgrade. The advanced alloy provides significantly improved heat resistance, extending valve service life for standard over-the-road and vocational trucks operating in high-temperature environments. Need more durability for demanding conditions? This engine platform is also available in higher performance tier.

• DT5658283S3 - View Stage 3 (Full Inconel Build) for maximum durability in heavy haul and high-horsepower applications.

DTech Cylinder Head Warranty Policy Statement

• DTech cylinder heads are engineered and validated for use in properly maintained engines operating within original equipment manufacturer (OEM) specifications and recommended operating conditions.
• DTech cylinder heads are backed by a 12-month, unlimited mileage warranty from the date of purchase.
• Approved warrantable claims are limited to a maximum of $1,000 per claim on labor.