ARRMA Typhon Main Differential Gear 43T Straight Steel AR310441

The ARRMA Typhon 43T straight main differential gear is a genuine steel replacement drivetrain gear for compatible ARRMA vehicles, helping restore smooth differential operation and reliable power transfer after wear or gear damage.

This 43 tooth straight-cut main diff gear is precision manufactured for consistent gear mesh inside compatible ARRMA differential assemblies. The tough steel construction makes it a practical spare for servicing Typhon drivetrains and other ARRMA models where AR310441 or ARAC4009 is listed in the vehicle manual.

Features

• Genuine ARRMA Replacement Part: Designed as a factory replacement main differential gear for compatible ARRMA vehicles
• 43T Straight Gear Design: Matches the specified 43 tooth straight-cut gear profile for supported differential applications
• Steel Construction: Super-tough material provides durability and reduced wear in demanding RC drivetrain use
• Precision Manufactured Teeth: Helps support smooth and reliable power transfer when correctly installed
• Useful Diff Service Part: Ideal for replacing chipped, worn or damaged main differential gears during drivetrain maintenance
• Typhon Listed Fitment: Commonly listed for ARRMA Typhon applications where AR310441 or ARAC4009 appears in the manual

Specifications

• Brand: ARRMA
• Part Number: AR310441
• Horizon Hobby Orderable Number: ARAC4009
• Barcode / GTIN: 5052127007429
• Product Type: Main differential gear
• Vehicle Compatibility: ARRMA vehicles where AR310441 or ARAC4009 is listed in the manual
• Common Listed Application: ARRMA Typhon models where confirmed by the vehicle manual
• Tooth Count: 43T
• Gear Type: Straight cut
• Material: Steel
• Quantity: 1 main differential gear
• Intended Use: Replacement differential repair and maintenance part for compatible ARRMA RC vehicles

Includes

• 1 x ARRMA 43T straight main differential gear

FAQ

Does this main differential gear fit the ARRMA Typhon? Yes. ARRMA AR310441 is commonly listed as a 43T straight main differential gear for compatible ARRMA Typhon vehicles where this part number appears in the manual.

Is this gear made from steel? Yes. The ARRMA AR310441 main differential gear is made from tough steel for drivetrain use.

How many gears are included? This pack includes one 43T straight main differential gear.

When should a main diff gear be replaced? Replace the main diff gear if the teeth are chipped, rounded, noisy under load, visibly worn or causing poor differential engagement.

Important Notes

• Check your ARRMA vehicle manual to confirm AR310441 or ARAC4009 is the correct replacement part before ordering.
• This listing includes the main differential gear only.
• Input gear, diff case, internal gears, bearings, shims, outdrives, screws, grease and other drivetrain parts are not included unless listed separately.
• Inspect the input gear and bearings during installation, as worn mating parts can reduce the life of a new diff gear.
• Reassemble and lubricate the differential according to your vehicle manual after servicing.