Harley-Davidson X440 Genuine Backrest Sub Assembly (Rear) – HDH9964BRAA000S – Backrest Base / Bracket (OEM)

If you’re planning to add a pillion backrest on your Harley-Davidson X440, the most common failure point is not the cushion—it’s the mounting/base assembly. A loose, misaligned, or low-quality bracket can create vibration, rattles, and unsafe support for the pillion on long rides.

HDH9964BRAA000S is a Genuine (OEM) “Backrest Sub Assembly” supplied under the Harley–Hero ecosystem and sold as a dedicated spare/assembly line item. It’s built for rear fitment as the structural base that supports the backrest setup. This is the right approach versus local fabricated brackets that often misalign with the bike’s mounting points, leading to wobble, paint damage, or fastener fatigue.

Why buy from Under The Hood: we focus on hard-to-find, platform-specific spares (like X440 support parts) with careful packing, quick dispatch, and fitment assistance. If you share your bike variant details/photo of your current mounting area on WhatsApp/chat, we can help you confirm you’re ordering the correct assembly and avoid return headaches.

Key Features 

• Part Number: HDH9964BRAA000S (Backrest Sub Assembly)

• Category / Type: Backrest (Sub Assembly / base support assembly)

• Placement: Rear (backrest mounting position)

• Mounting Style: Bolt-on type fitment

• Material / Finish (as commonly listed): Black finish; aluminum stated in international listing

• OEM Supply Chain: Listed as Manufacturer: HERO on major Indian spares retailer listing

• Ideal for riders building a proper pillion backrest setup instead of welded/fabricated brackets

• Helps reduce rattles, bracket flex, and misalignment seen with non-OEM mounting solutions

• Better long-term safety for pillion comfort on touring + city commuting

Compatibility Table

Caution (recommended): For mounting/support parts, match part code + your current bracket/seat rail area. If unsure, share a photo of your bike’s rear mounting area and we’ll help confirm before dispatch.

NOT FOR HARLEY X440T VARIENT 

Variants 

• No variants for this SKU (single part code: HDH9964BRAA000S).
  Note: Some backrest setups require separate components (pad/cushion, carrier/top rack, specific fasteners). Order this only if your requirement is the sub-assembly/base.

What’s in the Box

• 1 × Backrest Sub Assembly – HDH9964BRAA000S
  Not included (unless specifically mentioned on your invoice): backrest cushion/pad, luggage rack/top rack, or any other accessory parts.

Installation & Maintenance Notes

• Recommended: professional installation or a competent mechanic for correct alignment.

• Dry-fit first: confirm mounting holes align before tightening fully.

• Use correct tightening sequence; avoid over-torqueing fasteners (do not force threads).

• After installation, do a short test ride and re-check for play/rattle.

FAQs 

Q1. Is HDH9964BRAA000S a complete backrest kit?
No. This SKU is listed as a “Backrest Sub Assembly” (base/assembly component). A complete backrest setup may require additional parts like cushion/pad or rack depending on your build.

Q2. Will this fit my Harley-Davidson X440?
Some listings explicitly mention X440 fitment, but official public microfiche confirmation for this exact code is not clearly available. Best practice: match the part code (HDH9964BRAA000S) to your requirement and verify with VIN/vehicle details before ordering.

Q3. Where does it install—front or rear?
It is listed for rear placement as part of the backrest mounting/support assembly.

Q4. Is this genuine/OEM?
It is sold as a genuine spare on a major Indian spares retailer listing with Manufacturer noted as HERO (Harley–Hero ecosystem supply).

Q5. Why not use a local fabricated bracket?
Local brackets often cause misalignment, vibration, and unsafe support. OEM-style mounting assemblies typically provide better fit, finish, and long-term reliability—especially for pillion-support parts.

Q6. Can Under The Hood help me confirm before I order?
Yes. Share your bike variant details and a photo of the rear mounting area (or current backrest parts) and we’ll help confirm the correct fitment before dispatch.