A-Premium Coolant Radiator Hose Y-Junction Connector — Aluminum Surge Tank to Engine, Compatible with Chevrolet Silverado Suburban Tahoe Avalanche & GMC Sierra Yukon, Cadillac Escalade (Replace #15834773)

Overview

The A-Premium Coolant Radiator Hose Y-Junction Connector is a sturdy aluminum outlet designed to replace the GM OEM part 15834773 across a broad range of trucks and SUVs. Built to endure heat cycling and daily driving, this connector helps maintain a reliable coolant pathway from the surge tank to the engine.

Why choose an aluminum Y-junction

Aluminum offers improved resistance to temperature fluctuations compared with plastic, helping to preserve joint integrity over time. The compact Y-junction channels coolant efficiently to critical points in the cooling system, supporting steady operation and minimizing potential hot spots.

Fitment and vehicle coverage

• Cadillac Escalade family: Escalade, Escalade ESV, Escalade EXT (2002–2013)
• Chevrolet line: Avalanche, Silverado, Suburban, Tahoe and related variants (1999–2013 range, with model-year nuances)
• GMC lineup: Sierra, Yukon, Yukon XL family (1999–2013)
• Routing: Surge tank to engine connection as designed by the factory path

References and testing

• Reference numbers include 47157, 15792820, 15792821, 15792822, 15834772, 15834773, 25806518
• Manufactured and tested to strict standards for reliable performance in a variety of conditions

Warranty and support

• One-year unlimited-mileage guarantee on craftsmanship and materials
• Wide selection of automotive accessories to help you get back on the road with confidence

Notes for buyers: please verify your model year aligns with the listed fitment ranges before purchasing. This part is intended to replace the outlet where the surge tank meets the engine cooling circuit.

Practical takeaways

In real-world use, the A-Premium Y-junction offers a clean, OEM-like appearance with straightforward integration into the cooling system. The aluminum body is designed to resist corrosion and stand up to regular driving, towing, or long highway sessions.

Summary of benefits

• Solid aluminum construction that resists heat cycling
• Maintains a clear coolant path to support consistent flow
• Broad GM vehicle coverage for common trucks and SUVs
• Backed by a practical warranty and reliable replacement parts

Upgrading with this part offers a practical, adaptable solution for the surge tank to engine coolant path, presenting the potential for improved reliability and service life without guaranteeing results for every individual vehicle scenario.