TRQ Front Lower Control Arm with Ball Joint Set (Direct-Fit Replacement) for select Audi models
Product description
What this is (and why people buy it)
This TRQ Front Lower Control Arm with Ball Joint Set is a direct-fit style replacement kit aimed at restoring front-end suspension feel and steering stability on compatible Audi models. In real terms, lower control arms and ball joints are the parts that help keep wheel movement controlled—so when they wear, you can end up dealing with looseness, vibration complaints, or less precise handling. TRQ packages it as a set with pre-assembled components, which is a big deal if your goal is to replace parts without improvising.
The kit includes two front lower ball joints and two front lower forward control arms. On paper, it’s built for the DIY mindset: you’re not trying to “make it work,” you’re trying to swap in the correct parts with minimal fuss.
Key components in the kit
TRQ lists the kit contents as: - 2 front lower ball joints - 2 front lower forward control arms
It also provides a set of reference numbers to help you match what you’re replacing, including options like 4K0407151, 4K0407151B, 4K0407152, 4K0407152B, and several others shown in the listing (along with 101-8583, 102-8275, 102-8276, 538-238, CA-4496/CA-4497, CMS701156/CMS701157, MS70528, TC7058/TC7059, and X01CA0062).
If you’re shopping because you already identified the specific arm/joint assembly you need, that reference-number detail can help reduce the guesswork.
Compatibility: the part to double-check before you buy
The listing calls out compatibility across multiple Audi models and model years, including 20–22 Audi A6 allroad, 19–22 A6 Quattro, 18–22 A7 Sportback, 18–22 Q5, 21–22 Q5 PHEV, 21–22 Q5 Sportback, and select S models such as S6, S7 Sportback, SQ5, and SQ5 Sportback.
That said, it’s still smart to verify fitment using the “confirmed fit” style feature in your buying flow (the listing specifically mentions using the amazon Garage confirmed fit feature) and reviewing the full compatibility chart provided by the seller. Cars in the same model family can vary by sub-configuration, and this is one of those parts where “close enough” can become a headache.
What you’ll notice after installation (and what TRQ is aiming for)
TRQ’s positioning here is pretty straightforward: pre-assembled components designed as direct replacements, meant to help you avoid modifications and keep the job aligned with original-equipment geometry.
Why that matters: ball joints and control arms aren’t usually a “tighten and forget” swap in the way a simple bracket might be. With a proper direct-fit approach, you’re more likely to preserve correct mounting alignment and restore the steering feel you bought the car for in the first place.
Also, TRQ mentions DIY-focused install support via their video catalog (“view before you do”). Even if you’re experienced, having a walkthrough can help you plan the steps and tools before you start.
Where it shines vs. where it may fall short
This set makes the most sense if you want a packaged, replacement-oriented approach—complete with both sides’ front lower components in the box (2 arms and 2 ball joints).
It may not be the best match if: - You’re trying to save money but haven’t confirmed you need these exact front lower forward arms/ball joints. Ordering the wrong style is the kind of mistake that costs more than it saves. - Your vehicle’s setup differs from what the compatibility chart covers. The listing emphasizes checking fitment for a reason. - You’re expecting “plug-and-play” certainty without verifying details. Suspension work often has small variable factors (condition of related hardware, existing corrosion, etc.), even with direct-fit parts.
As always, it’s worth thinking of this as a solid replacement kit in the mainstream DIY lane—not something positioned as a high-performance upgrade.
How to make sure you’re buying the right suspension parts
Before you checkout, focus on a few practical checks that prevent returns and delays: - Confirm the fitment using the listing’s confirmed fit feature and the full compatibility chart. - Cross-check your current control arm / ball joint reference numbers if you can find them (the listing includes multiple reference numbers for matching). - Make sure you’re targeting the front lower “forward” control arm and ball joint assembly described, not a different suspension location.
A quick micro-example: if you’re already planning a Saturday job, you’ll save time by verifying the exact part family first—then you can line up tools, review the relevant DIY install video, and avoid stopping mid-job because the mounting style doesn’t match.
Tech specs
- Name: TRQ Front Lower Control Arm with Ball Joint Set
- Type: Direct-fit replacement kit
- Includes: 2 front lower ball joints, 2 front lower forward control arms
- Reference numbers (examples listed): 4K0407151, 4K0407151B, 4K0407152, 4K0407152B, 80A407151A, 80A407151B, 80A407152A, 80A407152B, 101-8583, 102-8275, 102-8276, 538-238, CA-4496, CA-4497, CMS701156, CMS701157, MS70528, TC7058, TC7059, X01CA0062
Final verdict
Worth buying if you need a front lower control arm + ball joint replacement for a compatible Audi and you’re prioritizing a direct-fit, pre-assembled swap that’s meant to reduce modification work. It also helps if you like having DIY guidance available through TRQ’s video library.
Skip it (or at least pause) if you can’t confirm the exact fitment for your specific vehicle configuration. With suspension parts, the “model and year” line is only the start—checking the compatibility chart matters.
FAQ
Will this replace both sides?
The kit includes 2 front lower ball joints and 2 front lower forward control arms, which is typically consistent with replacing both front sides, but you should still confirm based on what your vehicle needs.
How do I confirm the correct fitment for my Audi?
The listing recommends using the buying-flow “confirmed fit” style feature and reviewing the full compatibility chart before purchasing.
Is this meant for DIY installation?
TRQ’s description emphasizes DIY-friendly installation support, including pre-assembled direct replacements and a catalog of DIY videos intended to help you “view before you do.”
What should I double-check if it doesn’t match?
If the parts don’t align with your vehicle’s current assemblies, double-check the compatibility chart and the reference-number match shown in the listing before trying again.