Fleece Performance 03-07 Dodge 2500/3500 5.9L Remanufactured Cummins Cylinder Head (Street HD)

To use this freight service to return your core: 1) Contact us at 317-286-3573 2) Have your Name, email, and city information ready. 3) We will work with Fastenal to identify the nearest location to you that provides freight services. Fastenal will email you with the nearest location and a Bill of Lading for return of the core. 4) Take the cylinder head core to the Fastenal location IN THE ORIGINAL CRATE along with your Bill of Lading. You will be required to pay for the return freight. This cost will not be refunded or covered. 5) Upon receipt of the crate and cylinder head core, we will evaluate the core based on the acceptance criteria and credit your account for the amount. Head gasket not included. We recommend the use of Mahle 54556A or Cummins 3958645. Core and crate return required - all paperwork & instructions for return included with the new cylinder head. Read our core charge policy here. You are responsible for all return shipping costs of the core. Core Return For Residential Customers For residential customers needing to return the cylinder head core we have partnered with Fastenal to provide a convenient freight service from Fastenal locations nationwide at a reduced cost. Freight costs will be approximately $100 and take up to one week for delivery to Fleece. To use this freight service to return your core: 1) Contact us at 317-286-3573 2) Have your Name, email, and city information ready. 3) We will work with Fastenal to identify the nearest location to you that provides freight services. Fastenal will email you with the nearest location and a Bill of Lading for return of the core. 4) Take the cylinder head core to the Fastenal location IN THE ORIGINAL CRATE along with your Bill of Lading. You will be required to pay for the return freight. This cost will not be refunded or covered. 5) Upon receipt of the crate and cylinder head core, we will evaluate the core based on the acceptance criteria and credit your account for the amount.

Part Type

Engine Cylinder Head

• Fleece heavy duty 105# valve springs
• Fleece tool steel retainers
• Freedom Series Heavy Duty Street heads Include:11 Screw in Freeze Plugs (eliminates coolant leaks)
• Hardened, oversized press-in valve seats
• New valve guide liners

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

5.9L Freedom Series Cummins Cylinder Head (Street HD)

Fleece Performance Freedom Series Cummins cylinder heads are offered in Street, Street-HD, and Performance versions. Each cylinder head is manufactured in Fleece's state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications. All heads are inspected, pressure checked, decked, painted, and ready for installation. All versions include hardened, oversized press-in valve seats, new valve guide liners, and 11 screw-in freeze plugs to ensure you'll never worry about a coolant leak under the valve cover again! Choose the remanufactured version designed for your Cummins engine.

Street and Street-HD versions also feature:
• Perfect for a daily driver or heavy-duty towing
• Rated for use up to 700 hp
• Street:
-- New Cummins valve springs
• Street-HD
-- New heavy-duty Fleece 105# valve springs
-- Tool steel retainers

Performance versions also feature:
• Whether you are sled pulling, drag racing, or just looking for extra power when towing Fleece's Performance heads will get you the power you need
• Rated up to 1,100hp
• Fire ring the cylinder head (all in the head)
• Manley 1.300 in. stainless valves
• 105 valve springs and steel retainers
• Fire ring gasket kit with multi-layer steel gasket
• 4.550 in. diameter rings