Dometic 90-Degree End Cap Assembly - Ducted AC Ductwork Fitting - Part# 9108849728

DometicSKU: 9108849728
Added to catalog: March 10, 2026
Last product update: June 12, 2026 at 1:55 AM

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The Dometic 90-Degree End Cap Assembly is a precision-engineered ductwork component designed for Dometic ducted air conditioning systems in RVs. This end cap creates a secure 90-degree termination point in your AC duct runs, directing airflow exactly where you need it while maintaining proper system pressure and efficiency. If you're repairing damaged ductwork, upgrading your RV's climate control system, or replacing a cracked or missing end cap, this genuine Dometic part ensures proper fit and optimal airflow performance.

Key Features

  • Precision 90-Degree Design: Creates perfect right-angle airflow direction for optimal duct routing in tight RV spaces
  • Secure End Cap Termination: Provides leak-free closure at duct endpoints to maintain system efficiency
  • Genuine Dometic OEM Part: Manufactured to exact specifications for perfect compatibility with Dometic ducted AC systems
  • Durable Construction: Built from impact-resistant materials to withstand RV vibration and temperature variations
  • Easy Installation: Designed for straightforward integration into existing Dometic ductwork systems
  • Professional Grade Quality: Same component used by RV manufacturers and service centers

Technical Specifications

Part Number 9108849728
Component Type 90-Degree End Cap Assembly
Application Ducted Air Conditioning Ductwork
Configuration Right-Angle Termination Fitting
Manufacturer Dometic

Frequently Asked Questions

What is this end cap assembly used for?

This 90-degree end cap assembly terminates ductwork runs at a right angle in Dometic ducted air conditioning systems. It's used where you need to direct airflow at a 90-degree angle while closing off the end of a duct run, commonly found in ceiling or wall register installations throughout your RV.

How do I know if this fits my Dometic AC system?

This end cap is designed for Dometic ducted air conditioning systems. Check your existing ductwork components for Dometic branding or part numbers. If you're replacing a damaged end cap, compare the physical dimensions and connection style. This part works with standard Dometic duct sizing used in most RV installations.

Can I install this myself or do I need a technician?

Most RV owners with basic DIY skills can install this end cap assembly. The component connects to existing ductwork using standard Dometic connection methods. You'll need access to the ductwork (typically through ceiling panels or access hatches) and basic hand tools. Ensure all connections are secure and sealed to prevent air leaks.

What causes these end caps to need replacement?

End caps may crack or break due to RV vibration during travel, impact damage during renovations, UV exposure if near windows, or simply age-related material degradation. Signs you need replacement include visible cracks, air leaks reducing cooling efficiency, rattling noises from loose fittings, or complete breakage of the end cap assembly.

Why Choose Elkhart RV Parts?

We specialize in hard-to-find Dometic RV parts that keep your climate control system running perfectly. Located in Elkhart, Indiana — the RV Capital of the World — we understand the unique challenges of RV air conditioning systems and stock the genuine OEM components you need.

  • Genuine Dometic OEM Parts: Factory-quality components, not aftermarket substitutes
  • Expert RV Knowledge: Our team understands Dometic ducted AC systems inside and out
  • Fast Shipping: Quick delivery from our Elkhart warehouse to your door
  • Specialized Inventory: We stock the hard-to-find Dometic parts other suppliers don't carry
  • Technical Support: Real help from people who know RV climate control systems
100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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