Elring 587.400 Engine Air Intake Hose Seal

Engine Air Intake Hose Seal for GM Trucks and Vans

Elring 587.400 is an engine air intake hose seal built as an FPM O-ring for sealing service in the air and fuel delivery system. With a 40.87 mm inner diameter and 3.53 mm thickness, it provides the dimensional accuracy needed for a secure intake connection on select Chevrolet and GMC applications.

• Brand: Elring
• Part number: 587.400
• Engine air intake hose seal / O-ring design
• Material: FPM (fluoride rubber)
• Inner diameter: 40.87 mm
• Thickness: 3.53 mm
• Goods tariff number: 3926909985

Fitment Details

• Fits 2006-2016 Chevrolet Express 2500, N/A
• Fits 2009-2016 Chevrolet Express 3500, N/A
• Fits 2010-2016 Chevrolet Silverado 2500 HD, N/A
• Fits 2007-2016 Chevrolet Silverado 3500 HD, N/A
• Fits 2010-2016 GMC Savana 2500, N/A
• Fits 2010-2016 GMC Savana 3500, N/A
• Fits 2010-2016 GMC Sierra 2500 HD, N/A
• Fits 2011-2016 GMC Sierra 3500 HD, N/A

This part cross-references OE-style numbers 7381 780 and 12629458 for the same application.

Why This Seal Matters

As an intake hose seal, this O-ring helps maintain a tight connection where the air intake hose meets the engine system. Elring 587.400 is specified for select Chevrolet Express, Chevrolet Silverado, GMC Savana, and GMC Sierra models, including heavy-duty truck and van platforms that rely on consistent sealing at the intake interface.

Common Problems It Can Address

• Air leaks at the intake hose connection
• Damaged or flattened original seal
• Unstable sealing after intake service
• Contamination entering through a poor hose-to-housing seal
• Fitment issues caused by an incorrect replacement O-ring

Installation Notes

Confirm the seal dimensions before installation: 40.87 mm inner diameter and 3.53 mm thickness. Inspect the mating surfaces for debris, wear, or damage, and replace the seal if it shows cuts, hardening, or deformation. Verify the application against the vehicle listing for your Chevrolet Express 2500, Chevrolet Silverado 3500 HD, GMC Savana 3500, or GMC Sierra 2500 HD before assembly.

Quality Assurance

Elring sealing components are engineered for precise fit and material consistency in automotive service applications. This part is made from FPM (fluoride rubber), a material selected for sealing performance in demanding engine environments.