CUMMINS 5511563 Header

( Brand: Cummins ), ( Part Type: Header ), ( Manufacturer Part Number: 5511563 )

Review CUMMINS Def Header

The Cummins 5511563 DEF Header is a crucial component in the selective catalytic reduction (SCR) system of Cummins ISX and ISM engines. This DEF (Diesel Exhaust Fluid) header is designed to facilitate the efficient and effective conversion of harmful exhaust gases into less harmful emissions.

The DEF Header is made of high-quality materials that ensure durability and reliability. Its primary function is to distribute DEF fluid evenly to the catalytic converter, where it reacts with the exhaust gases to neutralize nitrogen oxides. This reaction is essential for meeting the stringent emissions regulations set by various regulatory bodies, making the DEF Header an essential component for environmentally-friendly and compliant operations.

The Cummins 5511563 DEF Header is a one-piece design that features a robust construction with a smooth internal surface for optimal fluid flow. Its dimensions are 13.2 inches in length, 3.5 inches in width, and 5.5 inches in height. Its inlet and outlet connections are made with durable and leak-resistant materials, ensuring a secure and tight seal to prevent DEF fluid leakage.

The DEF Header comes with a factory-installed O-ring gasket to ensure a proper seal between the header and the engine. It is also designed to be easily accessible for maintenance, with a convenient mounting location near the engine for easy access during routine checks or repairs.

The Cummins 5511563 DEF Header is a critical part of the SCR system and is essential for maintaining the emissions compliance and environmental friendliness of Cummins ISX and ISM engines. Its high-quality design and construction ensure reliable and efficient operation, making it an excellent investment for any heavy-duty vehicle or industrial application.

The Cummins 5511563 DEF (Diesel Exhaust Fluid) header is a crucial component of the selective catalytic reduction (SCR) system in Cummins engines. This system is designed to reduce exhaust emissions, making the engine more environmentally friendly. Here are some pros and cons of buying this DEF header:

1. Reduces Emissions: The primary function of the DEF header is to ensure that the SCR system functions correctly, resulting in reduced exhaust emissions.

2. Improved Engine Performance: Properly functioning SCR systems can improve engine performance by allowing the engine to operate at higher efficiency and power output.

3. Longer Engine Life: By reducing exhaust emissions, the DEF header can help prolong the life of the engine by reducing the amount of wear and tear caused by harmful exhaust gases.

1. Cost: The Cummins 5511563 DEF header is a relatively expensive component, and replacement costs can add up, especially if the header needs to be replaced frequently.

2. Complexity: The SCR system and DEF header are complex components that require regular maintenance and monitoring to ensure proper function.

3. Availability: In some areas, it may be challenging to find a reliable supplier of the Cummins 5511563 DEF header, which could result in extended downtime for engine repair or replacement.

The Cummins 5511563 DEF header is a necessary component for reducing exhaust emissions and improving engine performance in Cummins engines. However, its complexity, cost, and potential availability issues should be carefully considered before making a purchase. It is recommended that fleet managers and engine owners regularly maintain their SCR systems and DEF headers to ensure optimal performance and minimize the need for costly replacements. Additionally, working with a reputable supplier or dealer can help ensure the availability and quality of the DEF header when it is needed.

part # 5511563 prices

• $749.00-$1238.43

specifications maniheader:

• brand: Cummins
• part type: Header
• manufacturer part number: 5511563

offer maniheader:

• availability: In Stock
• sold: 0
• best offers: True
• quantity: 1
• options: Ship-to-home
• started: October 25, 2025

seller maniheader:

• rating: 100.0%
• # reviews: 94

shipping maniheader:

• carrier: USPS
• transit: 4-10 Days
• service: USPS Ground Advantage
• type: Calculated
• class: Standard
• cost: $56.38

general maniheader:

• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
• condition: New

payments maniheader:

• other
• wallet: Paypal
• money order
• credit card: Diners-club

returns maniheader:

• policy: No Returns

Cummins 5511563 Is Similar To:

• Cummins 5511560 Def Header A066s824 (82% similar) $698.59–$1238.43. (December 28th, 2024)
• Freightliner 04-30774-001 Oem Header-cummins Diesel Exhaust Fuel 6 Gallons Dqs (19.2% similar) $1700.00–$2999.99. (December 6th, 2025)