Dometic Patio Awning Main Rafter Arm - Polar White - 74" - Part# 3314065.008B

DometicSKU: 3314065.008B
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 5:00 AM

Sale price$90.99 Regular price$144.67
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In stock (99 units), ready to be shipped
FREE Delivery Estimate June 10 – June 13
1-Hour Cancellation Window

1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

This is the main rafter arm for Dometic patio awnings, the structural component that extends from the awning roller tube to support the fabric canopy. If your awning won't fully extend, sags unevenly, or the arm is bent or cracked, this replacement rafter arm restores proper operation and safety to your RV's outdoor shade system.

Key Features

  • 74-inch length — fits standard Dometic awning models
  • Polar white finish matches factory Dometic awnings
  • Heavy-duty aluminum construction for durability and weather resistance
  • Main support arm carries the load of extended awning fabric
  • Direct OEM replacement — no modifications needed
  • Works with manual and motorized Dometic awning systems

Technical Specifications

Specification Details
Part Number 3314065.008B
Length 74 inches
Color Polar White
Material Aluminum
Component Type Main Rafter Arm
Manufacturer Dometic

Frequently Asked Questions

How do I know if my rafter arm needs replacement?
If your awning won't extend fully, the fabric sags to one side, the arm is visibly bent or cracked, or the awning makes grinding sounds when extending, the rafter arm likely needs replacement. Compare your arm length to this 74-inch specification to confirm fit.
Will this fit my Dometic awning model?
This 74-inch main rafter arm fits most standard Dometic patio awnings. Verify your awning model number and compare the arm length before ordering. Contact our expert support team if you're unsure about compatibility.
Can I install this myself?
Yes. The rafter arm connects to the roller tube and support brackets with bolts and pins. Most RV owners can complete installation with basic tools in 30–45 minutes. Consult your Dometic awning manual for step-by-step instructions, or contact us for guidance.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts for RV owners who need exact OEM components. Shipping directly from Elkhart, Indiana — the RV capital of the world — we stock genuine Dometic parts and provide expert support to help you identify and install the right component. When your awning needs repair, we have the parts and knowledge to get you back on the road.

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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