ARRMA AR310802 Diff Case 49T Main Gear 17T Input Gear Set ARAC4025

The ARRMA® AR310802 Diff Case 49T Main Gear 17T Input Gear Set (ARAC4025) is an OEM replacement differential case and gear set for compatible ARRMA vehicles. This complete set includes the diff case along with the 49-tooth main gear and 17-tooth input gear, providing everything needed for a full differential rebuild or replacement.

The differential is one of the most critical drivetrain components, and having a complete replacement set on hand means you can restore full drivetrain function quickly after a failure. OEM spec parts ensure proper fitment and reliable performance.

An essential rebuild kit for any ARRMA driver who services their own drivetrain.

Key Features

• Part Number: AR310802 / ARAC4025
• Complete differential case and gear set
• 49T main gear
• 17T input gear
• OEM spec for direct-fit replacement

Includes

• 1x Differential Case
• 1x 49T Main Gear
• 1x 17T Input Gear

Benefits

• Complete diff rebuild in one package
• Restores full drivetrain function
• OEM spec for reliable performance
• Fast direct-fit installation

Quick Take

Everything you need for a complete diff rebuild — one part number, no hunting for individual components.