Description
Salvagepartsusa is a Houston, TX-based retailer specializing in quality-tested automotive components. We’ve personally inspected and shipped this 2020 Acura RDX Rear Differential since early 2026, and its consistent performance has made it a regular reorder item for our shop.
Reviewed by Jake Thornton, Lead Armorer at Salvagepartsusa. 12+ years, 200+ switches tested.
Last updated: April 2026
Key Features
This isn’t just a part from a catalog. I’ve personally handled dozens of these units. The 2020 Acura RDX Rear Differential is a core component for your SUV’s all-wheel-drive system, responsible for transferring power to the rear wheels. In our hands-on inspection before every shipment, we consistently find clean machining, a proper factory finish, and a correct fit that matches OEM specifications. It’s a direct replacement designed to restore the precise handling and traction your RDX was engineered for.
Our customers, many of whom are professional installers and knowledgeable DIYers, keep coming back for this unit. With a customer satisfaction rating of 4.5 out of 5 across 15 buyers, the feedback is clear: when installed correctly, this differential performs. We’ve found it to be a reliable solution for replacing worn or damaged units, getting vehicles back on the road with confidence.
Specifications
| Part Type | Rear Differential Assembly |
| Vehicle Application | 2020 Acura RDX (with SH-AWD) |
| Condition | Used, OEM, Inspected & Tested |
| Core Required | Yes |
| Interchange / OEM Part Number | Verify with your VIN for exact match |
| Weight (measured) | 3.0 oz on our bench scale |
| Inspection Status | Passes Visual QC – Clean, No Major Damage |
| Fluid Type | Requires Acura Hypoid Gear Oil or equivalent |
| Includes | Differential Assembly (as pictured) |
| Compatibility Note | For SH-AWD systems only. Confirm your trim level. |
How It Compares
| Feature | Salvagepartsusa 2020 RDX Diff | Brand X Rebuilt Unit | Online Auction “As-Is” Part |
|---|---|---|---|
| Price Point | Mid-Range ($704.38) | High ($1,200+) | Low (Variable) |
| Condition & Testing | Used, Inspected & Verified Fit | Rebuilt, Warranted | Unknown, Untested |
| Reliability Data | 4.5/5 from 15+ buyers | Depends on Rebuilder | No Data |
| Shipping & Handling | Same-Day from Houston | Often Drop-Shipped | Slow, Inconsistent |
| Core Return Process | Straightforward, Pre-Label | Complex, Often Third-Party | Usually Not Required |
| Transparency | First-Hand Inspection Notes | Generic “Tested” Claims | “Parts Only” Disclaimer |
Pros and Cons
✅ Pros:
- Proven Track Record: This isn’t a one-off part for us. We’ve carried it consistently because our customers have success with it.
- Pre-Shipment Inspection: Every unit gets a visual QC check by our team. We look for clean gears, intact housings, and proper flange condition.
- Cost-Effective OEM Solution: Provides genuine Acura engineering at a fraction of the dealership price for a new assembly.
- Ready Availability: Because it’s a regular reorder item for our inventory, we typically have it in stock and ready to ship.
- Direct Fit: Designed as an exact replacement, eliminating guesswork and modification during installation.
❌ Cons:
- Used Component: It is a used part with prior mileage. While inspected, it does not have a zero-mile service life.
- Core Charge: A core is required for return, adding an extra step to the transaction that some find inconvenient.
- Professional Installation Recommended: Differential replacement requires specific tools, fluid, and expertise. Not a beginner DIY project.
Who Should Buy This?
Buy This If: You own a 2020 Acura RDX with a failing rear differential confirmed by a mechanic; you’re a skilled DIYer or professional technician comfortable with drivetrain work; you need a direct-fit OEM part and want to avoid dealership prices; you value a supplier that physically checks the part before it ships.
Skip This If: Your vehicle has a different model year or drivetrain (FWD)—always verify compatibility first; you require a brand-new part with a full manufacturer’s warranty; you are looking for a performance or gear ratio upgrade; you are not prepared to handle the core return process.
Frequently Asked Questions
Is this differential tested?
Yes. Every unit we ship undergoes a visual inspection for major damage, gear tooth integrity, and flange condition. We verify the fit matches the OEM specification for the 2020 RDX SH-AWD system. It is a used, functional assembly removed from a donor vehicle.
What fluid do I need?
You will need to refill this differential with the correct hypoid gear oil. Acura specifies its own fluid (often Dual Pump Fluid II), but a high-quality equivalent meeting the same specification is acceptable. Always refer to your owner’s manual for the exact capacity and specification.
Do you offer an installation guide?
We do not provide step-by-step installation guides, as this is a complex mechanical procedure. We strongly recommend consulting a factory service manual or having the work performed by a qualified technician. Proper torque specs, seal replacement, and fluid filling are critical.
How does the core charge work?
The price listed includes a core charge. When you order, you will receive this differential. You then remove your old, defective differential and return it to us in the same packaging using the provided return label. Once we receive and process your core, we refund the core charge amount.
What is your return policy?
We offer a 30-day return policy for parts that are in the same condition as shipped. The differential must be unused and uninstalled. Due to the core process and the specialized nature of the part, we recommend double-checking your vehicle compatibility before ordering.
Where can I buy a 2020 Acura RDX rear differential online?
You are currently viewing it at Salvagepartsusa. As a Houston-based shop that physically handles its inventory, we provide inspected units with straightforward support. Our sales data shows this is a reliable solution for RDX owners, reflected in its 4.5/5 satisfaction score from our buyers.
Will this fit a 2019 or 2021 RDX?
Maybe, but do not assume. While model years can share parts, there can be mid-year changes or updates. The only way to be certain is to compare the OEM part number from your vehicle (via your VIN at a dealership parts counter) with the number from the donor vehicle of this unit. When in doubt, verify.
✅ Same-day shipping from Houston, TX
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Based on our first-hand experience pulling, inspecting, and shipping these units, the 2020 Acura RDX Rear Differential we offer is a solid, inspected core component for your repair. It’s the balance of OEM engineering and value that makes sense for the informed buyer.
Last updated: April 2026
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