Air Filter HiFlo - Aprilia RS4 125 (AJP Calipers) 2012

Overview

This Hiflofiltro air filter is a direct replacement for the original equipment filter fitted to a wide range of Aprilia, Derbi, Gilera and Mondial 50cc and 125cc models listed below. Manufactured to meet or exceed OEM specifications, it provides dependable filtration and consistent airflow to support reliable performance and engine longevity.

Motorcycle fitment

This air filter is suitable for the following model families and year ranges:

• Aprilia RS4 50 – 2011 to 2020 (AJP & J.Juan caliper variants, Ming Xing & Paioli fork versions)
• Aprilia RS4 125 – 2011 to 2017 (various caliper and fork variants)
• Aprilia RS 125 4T / Replica – 2017 to 2022
• Aprilia RX 125 / SX 125 (E4 & E5) – 2018 to 2022
• Aprilia Tuono 125 – 2017 to 2023
• Derbi GPR 50 / GPR 50-R / Race Replica – 1998 to 2006
• Derbi GPR 125 (Nude, Racing, 4T 4V) – 2004 to 2014
• Derbi Mulhacen 125 / 125 Cafe – 2007 to 2010
• Derbi Mulhacen 659 – 2007 to 2008
• Derbi Terra 125 / Terra Adventure 125 – 2007 to 2014 (Paioli & KYB fork variants)
• Derbi Senda DRD 125 SM – 2010 to 2014
• Gilera SC 125 – 2006 to 2007
• Mondial HPS 125 – 2017 to 2020

If your motorcycle falls within the models and year ranges listed above, this filter is the correct direct replacement for the original air filter. Always confirm your exact model and year before ordering.

Why choose Hiflofiltro

• Manufactured to meet or exceed OEM specifications
• High quality filter media for effective filtration and airflow
• Precision fit across multiple Piaggio-group 50cc and 125cc models
• Trusted worldwide aftermarket filtration brand

Benefits in use

• Helps protect the engine from dust and airborne contaminants
• Maintains correct airflow for smooth throttle response
• Supports consistent power delivery and fuel efficiency
• Direct replacement for straightforward installation

When to replace your air filter

• At the interval recommended in your service schedule
• If the filter element appears dirty or restricted
• After extended riding in urban or dusty conditions
• As part of routine servicing to maintain optimal performance

Installation notes

• Access the airbox following the procedure in your workshop manual
• Remove the old filter and inspect the airbox for debris
• Install the new filter ensuring it is correctly seated and sealed
• Refit all removed components securely before riding
• Professional installation recommended if unsure

Technical summary

• Brand: Hiflofiltro
• Wemoto part number: AG1506
• Hiflofiltro reference: HFA6112
• Type: Air Filter (Paper Element)

Why buy from Wemoto

• Fast dispatch and reliable delivery
• Extensive range of motorcycle service parts
• Knowledgeable customer support team