Cummins DEF Header | ASPFL2336
Aftermarket Cummins DEF header replaces OEM ASPFL-2336 & more. Built to OEM standards for long lasting performance and backed by a manufacturer warranty.
Cummins DEF Header | ASPFL2336
Restore reliable emissions system function with the DEF header ASPFL2336 from American Radiator. Specifically engineered to meet or exceed Cummins OEM specifications, this replacement DEF header delivers accurate fluid level sensing, consistent temperature monitoring, and dependable DEF heating performance in even the harshest environments.
Built with high-durability, corrosion-resistant materials, the ASPFL2336 DEF header ensures long-term reliability in demanding on-road and off-road fleet conditions. The integrated coolant-powered heater prevents DEF crystallization in cold climates, while the sensor package maintains precise data for proper SCR system function—minimizing the risk of power derates or engine fault codes.
Designed for easy installation, this unit features OEM-style connectors and direct-fit compatibility, reducing downtime and avoiding costly modifications. Whether operating long-haul trucks, construction equipment, or heavy-duty diesel platforms, this header offers performance you can trust to meet emissions requirements and protect engine efficiency.
Every unit is tested for performance and integrity, backed by a 1-year warranty. Choose the DEF header ASPFL2336 from American Radiator for premium quality, lasting performance, and peace of mind on the road.
DEF Header Features:
Designed For:
Manufacturer Warranty
DuraWRX provides a manufacturer's warranty on its DEF-related products for up to 2 years/40,000 miles/1,200 hours (whichever occurs first). This warranty covers any defects in materials or workmanship. To be eligible for a claim, the end user must register their product purchase on the DuraWRX site. To file a claim, customers must contact DuraWRX to receive a return shipping label. Once the product is returned and the claim is approved, DuraWRX will issue either a refund or a credit.
DEF Header Specs:
Please confirm your OEM or Aftermarket number matches before ordering.
04-30774-000
04-30774-004
04-30774-004
04-30774-000
0430774000
0430774004
ASPFL-2336
ASPFL2336
Shipping & Returns
Why Buy From American Radiator?
Trust American Radiator, your reliable source for quality cooling solutions since 2001. With roots in the industry dating back to the 1970s, our team brings decades of experience delivering high-performance radiators, charge air coolers, and DPF systems at competitive prices.
We work directly with trusted domestic and international manufacturers that supply OEM-grade components, ensuring every product meets or exceeds original equipment standards. Whether you need a heavy-duty truck radiator or a replacement for your DEF Header, we’re committed to providing durable, cost-effective solutions that perform.
Have questions? Contact our experienced inside sales team at 888-483-5763 for expert guidance and fast, friendly support.
| Part Number | SKU | 254001 |
|---|---|
| OEM | Aftermarket Numbers | 04-30774-005 04-30774-005 04-30774-005 ASPFL-2336 ASPFL2336 0430774005 |