Cars, motorcycles, bicycles, and boats: Engines, gears, and conversions

Affiliates in the transportation and leisure sectors create loyal followers through niche knowledge and passion.
Here, it’s crucial for the advertiser to provide accurate product data and updated prices.
Professional affiliate management can be the difference between chaos and conversion.

MARKET DATA · GLOBAL · 2026

Cars, motorcycles, bicycles & boats in numbers – 2026

Online sales of aftermarket auto parts are forecast at about $93 billion worldwide in 2026.
The Business Research Company expects the segment to grow by more than 10% a year to 2030.
Figures are worldwide unless stated otherwise.

Auto parts e-commerce (aftermarket), worldwide

$93.1B

2026 forecast (The Business Research Company), up from $84.1B in 2025 [1]

Affiliate marketing industry, worldwide

$27.8B

2026, all niches [3]

Share of e-commerce driven by affiliates ESTIMATE

~9.4%

US benchmark, all niches – not niche-specific [4]

Europe and the Nordics

Region	2025	2026 (forecast)	Growth
Europe – B2C e-commerce	$1.02T	$1.08T	+5%
Northern Europe – B2C e-commerce	$78.1B	$82.9B	+6%
Denmark – B2C e-commerce per person	$5,007	–	#1 in Europe

All-sector B2C e-commerce [5].
Cars, motorcycles, bicycles & boats is not reported separately, so use these figures as market context, not as niche totals.
Exchange rates: USD→EUR 0.89, USD→DKK 6.66, EUR→DKK 7.48 (October 2026) [6].

Affiliate networks to check for this niche

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TYPICAL COMMISSION

2–10%

Car and auto parts programmes usually pay a percentage of the sale, from about 2–5% at some specialists up to 10% at larger parts retailers. A few programmes pay more only above a minimum order value. [2]

Key takeaways

Auto parts e-commerce is forecast to grow from $84.1 billion in 2025 to $93.1 billion in 2026 [1].

TBRC forecasts $139.7 billion by 2030, a compound annual growth rate of 10.7% [1].

Published rates range from 2–5% (TheYotaGarage) to 8% (Auto Barn) and up to 10% (Advance Auto Parts) [2].

Sources

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