How an Auto Parts Brand Won Top-of-Search and Grew Market Share on Amazon

This premium automotive brand manufactures replacement lift supports in the United States, serving a market driven largely by new-to-brand purchases. With a focused catalog of product variations and a tiered offering, the brand competes in a high-intent category where visibility at the top of search directly impacts sales and market share.

The Challenge

The brand wasn’t lacking demand—it was losing visibility where it mattered most.

Despite strong products and competitive pricing, the brand struggled to secure top-of-search placements. Competitors dominated premium positions, capturing the majority of high-intent traffic.

Performance reflected this gap. Sales plateaued over several months, and while efficiency remained stable, growth stalled. The brand was present—but not visible enough to win.

In a category driven by replacement purchases, this created a clear limitation. Without strong top-of-search presence, the brand couldn’t consistently reach new customers at the moment of intent.

To grow, the brand needed to shift from participating in search to leading it.

Why Quartile

The challenge required more than incremental bidding changes—it required a targeted visibility strategy.

Quartile identified that the constraint was not efficiency, but placement. The brand had room to scale, but only if it could win premium positions where conversion rates are highest.

By combining automation, AI-driven keyword insights, and structured campaign design, Quartile created a system focused on maximizing top-of-search presence while maintaining efficiency guardrails.

This allowed the brand to compete more aggressively—without sacrificing profitability.

The Solution

Quartile rebuilt the strategy around top-of-search dominance.

A new Sponsored Products campaign structure was introduced, centered on bulk keyword targeting across the core category. Instead of spreading investment across fragmented campaigns, the approach consolidated high-value keywords into a single, high-impact structure.

Bidding was strategically adjusted to prioritize premium placements, with significant emphasis on top-of-search positioning. This ensured the brand could consistently compete for the most valuable impressions.

At the same time, AI-driven insights were used to identify the highest-performing category keywords. These were incorporated into the campaign to strengthen coverage and improve efficiency.

To support this shift, underperforming campaigns targeting similar keywords were paused, allowing budget to be reallocated toward the new structure.

Sponsored Display campaigns were also introduced for top-performing products, reinforcing visibility and capturing additional demand beyond search placements.

The result was a coordinated system designed to win visibility, not just participate in auctions.

Results & Impact

Within the first 90 days, the strategy delivered measurable gains across performance and positioning:

• 35% increase in ad sales, breaking through prior stagnation  

• 21% increase in top-of-search sales share, improving premium placement visibility  

• 15% improvement in ACOS, maintaining efficiency while scaling  

Beyond performance metrics, the impact was visible at the category level. The brand’s top product consistently ranked among the top positions, holding the number one spot for a significant portion of the period.

These results demonstrate that in high-intent categories, visibility is not just a metric—it is a growth driver.

Ongoing Value & Future State

With a strong top-of-search strategy in place, the brand is now positioned to maintain competitive visibility and continue gaining market share.

Quartile continues to refine keyword strategy, optimize bidding, and expand campaign coverage—ensuring the brand sustains its position while scaling efficiently.