Restore peak engine performance with the Automann 561.59112. This high-temp silicone CAC elbow is specifically engineered for the NextGen PACCAR platform. Designed to withstand the extreme pressures and temperatures of the MX-13 engine environment, this 4-inch ID hose ensures a leak-free connection between your turbocharger and charge air cooler, preventing boost loss and maintaining fuel efficiency.
| Feature | Details |
| Part Number | 561.59112 |
| Category | Engine / Cooling System |
| Material | High-Grade Reinforced Silicone |
| Inside Diameter (ID) | 4.0" |
| Length | 19.98" |
| Application | Charge Air Cooler (CAC) |
This elbow is designed for the latest generation of aerodynamic and vocational PACCAR trucks equipped with the MX-13 engine:
Kenworth: T680, T880 NextGen
Peterbilt: 567, 579 NextGen
| Manufacturer | Part Number | Notes |
| Paccar | D50-1112 | Direct Replacement |
| Paccar | D501112 | Direct Replacement |
High-Temp Resistance: Multi-layer silicone construction prevents soft-spots and "ballooning" under high boost pressure.
Exact Fit: Engineered to the precise 19.98-inch length required for NextGen engine compartments—no trimming necessary.
Chemical Durability: Resists oil mist and environmental contaminants common in heavy-duty engine bays.
Tech Tip: When replacing CAC elbows, always inspect your T-bolt clamps. Over-tightening can damage the silicone, while under-tightening leads to boost leaks. We recommend using constant-torque clamps for this 4" application.
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