{"product_id":"arrma-centre-differential-set-50t-ar220029-arac4013","title":"ARRMA Centre Differential Set 50T AR220029 \/ ARAC4013","description":"\u003cp\u003eRestore your RC vehicle's drivetrain with the genuine ARRMA Centre Differential Set 50T, part number AR220029, also known as ARAC4013. Designed for selected ARRMA 6S BLX 4WD vehicles, this comprehensive differential replacement set includes a 50-tooth spur gear, reinforced differential case, internal steel gears, outdrives, seals and associated assembly hardware.\u003c\/p\u003e\n\u003cp\u003eThe centre differential helps distribute drive torque between the front and rear axles, allowing controlled differential action during acceleration, cornering and changes in traction. Replacing worn or damaged differential components can help restore smooth drivetrain operation and consistent power transfer.\u003c\/p\u003e\n\u003cp\u003eARRMA uses tough steel crown, planetary and satellite gears for durability under demanding driving conditions. A reinforced differential case, precision-machined gear teeth and metal cross shafts provide reliable component fitment and support regular drivetrain servicing.\u003c\/p\u003e\n\u003cp\u003eThis is a genuine ARRMA replacement part for compatible 6S BLX platforms. Compatibility varies between model generations and drivetrain configurations, so always confirm AR220029 or ARAC4013 against your vehicle's exploded parts diagram before purchase.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine ARRMA Replacement Part: Manufacturer part number AR220029\u003c\/li\u003e\n\u003cli\u003eHorizon Hobby Reference: ARAC4013\u003c\/li\u003e\n\u003cli\u003e50T Spur Gear: Includes a 50-tooth centre differential spur gear\u003c\/li\u003e\n\u003cli\u003eSteel Internal Gears: Tough crown, planetary and satellite gears for demanding drivetrain use\u003c\/li\u003e\n\u003cli\u003eReinforced Differential Case: Designed for strength under high drivetrain loads\u003c\/li\u003e\n\u003cli\u003ePrecision Gear Teeth: Manufactured for consistent gear engagement\u003c\/li\u003e\n\u003cli\u003eMetal Cross Shafts: Support the internal differential gear assembly\u003c\/li\u003e\n\u003cli\u003eDiff Case Insert: Additional support within the differential housing\u003c\/li\u003e\n\u003cli\u003eReplacement Outdrives: Includes two differential output drive components\u003c\/li\u003e\n\u003cli\u003eSealing Components: Supplied with silicone O-rings and differential gasket\u003c\/li\u003e\n\u003cli\u003eShims and Hardware Included: Provides the listed internal assembly and fastening components\u003c\/li\u003e\n\u003cli\u003eDrivetrain Maintenance Solution: Suitable for repairing a damaged or worn compatible centre differential\u003c\/li\u003e\n\u003cli\u003eSelected ARRMA 6S Compatibility: Applicable to supported KRATON, TYPHON, TALION, OUTCAST, NOTORIOUS and MOJAVE variants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCentre Differential Function\u003c\/h3\u003e\n\u003cp\u003eThe centre differential distributes power between the front and rear drivetrains of a compatible 4WD RC vehicle. Its internal gears permit different front and rear wheel speeds when traction and loading conditions change.\u003c\/p\u003e\n\u003cp\u003eCorrect differential assembly, lubrication and maintenance are important for smooth operation. Always use the differential fluid grade specified for your vehicle and driving requirements.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: ARRMA\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: AR220029\u003c\/li\u003e\n\u003cli\u003eHorizon Hobby Part Number: ARAC4013\u003c\/li\u003e\n\u003cli\u003eAlternative Retailer SKU: ARA220029\u003c\/li\u003e\n\u003cli\u003eBarcode \/ EAN: 5052127007481\u003c\/li\u003e\n\u003cli\u003eProduct Type: Centre Differential Set\u003c\/li\u003e\n\u003cli\u003eApplication: RC 4WD Drivetrain\u003c\/li\u003e\n\u003cli\u003eSpur Gear Tooth Count: 50T\u003c\/li\u003e\n\u003cli\u003eIncluded Straight Crown Gear: 43T\u003c\/li\u003e\n\u003cli\u003eSatellite Gear Tooth Count: 10T\u003c\/li\u003e\n\u003cli\u003eSatellite Gear Quantity: 4\u003c\/li\u003e\n\u003cli\u003ePlanetary Gear Quantity: 2\u003c\/li\u003e\n\u003cli\u003eInternal Gear Material: Steel\u003c\/li\u003e\n\u003cli\u003eDifferential Case: Reinforced\u003c\/li\u003e\n\u003cli\u003eCross Shafts: Metal\u003c\/li\u003e\n\u003cli\u003eOutput Drives: 2\u003c\/li\u003e\n\u003cli\u003eDiff Pins: 2.25 x 9.8mm\u003c\/li\u003e\n\u003cli\u003eMounting Screws: M3 x 12mm Button Head\u003c\/li\u003e\n\u003cli\u003eSet Screw: M4 x 3mm\u003c\/li\u003e\n\u003cli\u003ePrimary Vehicle Family: Selected ARRMA 6S BLX Models\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Differential Set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis differential set is listed for selected versions of the following ARRMA 6S BLX vehicle families:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eARRMA KRATON 6S BLX\u003c\/li\u003e\n\u003cli\u003eARRMA TYPHON 6S BLX\u003c\/li\u003e\n\u003cli\u003eARRMA TALION 6S BLX\u003c\/li\u003e\n\u003cli\u003eARRMA OUTCAST 6S BLX\u003c\/li\u003e\n\u003cli\u003eARRMA NOTORIOUS 6S BLX\u003c\/li\u003e\n\u003cli\u003eARRMA MOJAVE 6S BLX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment is model- and generation-dependent. Not every version of these vehicles uses the same centre differential assembly. Check the original part number and your vehicle's exploded diagram before ordering.\u003c\/p\u003e\n\u003ch3\u003eIncludes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 50T Spur Gear\u003c\/li\u003e\n\u003cli\u003e1 x Differential Case\u003c\/li\u003e\n\u003cli\u003e1 x Differential Case Insert\u003c\/li\u003e\n\u003cli\u003e4 x 10T Satellite Gears\u003c\/li\u003e\n\u003cli\u003e2 x Metal Cross Shafts\u003c\/li\u003e\n\u003cli\u003e2 x Planetary Gears\u003c\/li\u003e\n\u003cli\u003e2 x Front\/Rear Differential Outdrives\u003c\/li\u003e\n\u003cli\u003e2 x Differential Pins - 2.25 x 9.8mm\u003c\/li\u003e\n\u003cli\u003e2 x Silicone O-Rings\u003c\/li\u003e\n\u003cli\u003e1 x Differential Gasket\u003c\/li\u003e\n\u003cli\u003e4 x Satellite Gear Shims\u003c\/li\u003e\n\u003cli\u003e4 x Metal Cross Shaft Inserts\u003c\/li\u003e\n\u003cli\u003e1 x 43T Straight Differential Crown Gear\u003c\/li\u003e\n\u003cli\u003e4 x M3 x 12mm Button-Head Screws\u003c\/li\u003e\n\u003cli\u003e1 x M4 x 3mm Set Screw\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRequired To Complete\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible ARRMA Vehicle and Centre Differential Mounting Assembly\u003c\/li\u003e\n\u003cli\u003eSuitable Silicone Differential Oil\u003c\/li\u003e\n\u003cli\u003eAppropriate RC Assembly and Maintenance Tools\u003c\/li\u003e\n\u003cli\u003eAny Additional Vehicle-Specific Hardware Not Supplied with This Set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is ARRMA AR220029?\u003c\/strong\u003e It is a genuine ARRMA 50-tooth centre differential replacement set, also identified by Horizon Hobby part number ARAC4013.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre AR220029 and ARAC4013 the same part?\u003c\/strong\u003e Yes. ARRMA identifies AR220029 as its manufacturer part number and ARAC4013 as the Horizon Hobby reference for this product.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs ARA220029 another reference for this part?\u003c\/strong\u003e Yes. Some retailers use ARA220029 for the same 50T centre differential set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does 50T mean?\u003c\/strong\u003e It means the included centre differential spur gear has 50 teeth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does a centre differential do?\u003c\/strong\u003e It distributes power between the front and rear drivetrains while allowing differential action when the axles experience different loads or traction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include the 50T spur gear?\u003c\/strong\u003e Yes. One 50-tooth spur gear is included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include internal differential gears?\u003c\/strong\u003e Yes. It includes four 10T satellite gears and two planetary gears.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the differential gears metal?\u003c\/strong\u003e ARRMA specifies steel crown, planetary and satellite gears.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include the differential case?\u003c\/strong\u003e Yes. The differential case and case insert are included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the outdrives included?\u003c\/strong\u003e Yes. Two differential outdrives are supplied.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre seals and shims included?\u003c\/strong\u003e Yes. The set includes silicone O-rings, a differential gasket and satellite gear shims.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the set include mounting screws?\u003c\/strong\u003e Yes. It includes four M3 x 12mm button-head screws and one M4 x 3mm set screw.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs differential oil included?\u003c\/strong\u003e Differential oil is not listed in the manufacturer's package contents. Purchase suitable silicone differential oil separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my ARRMA KRATON 6S?\u003c\/strong\u003e It is listed for selected KRATON 6S BLX models. Check the exact vehicle version and exploded diagram because centre differential designs can differ between generations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit an ARRMA TYPHON 6S?\u003c\/strong\u003e It is listed for selected TYPHON 6S BLX versions. Confirm your specific model's centre differential part number before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it compatible with the ARRMA MOJAVE 6S?\u003c\/strong\u003e Retailers list selected MOJAVE 6S BLX applications. Fitment should be verified against the specific vehicle revision.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit the ARRMA KRATON 8S?\u003c\/strong\u003e Do not assume compatibility. This is a 50T differential set associated with selected 6S BLX drivetrains, not a universal ARRMA 8S replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a complete ready-filled differential?\u003c\/strong\u003e The manufacturer lists the internal components and hardware but does not specify prefilled differential oil. Treat it as a differential set requiring correct assembly and fluid servicing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a newer replacement part number?\u003c\/strong\u003e ARRMA's historical cross-reference lists ARA310959 as a replacement for AR220029. Verify current vehicle fitment and specification before substituting parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I confirm compatibility?\u003c\/strong\u003e Find your ARRMA model number, consult the official exploded parts diagram and match the centre differential part number before purchase.\u003c\/p\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis listing is for genuine ARRMA AR220029 \/ ARAC4013\u003c\/li\u003e\n\u003cli\u003eIncludes one 50T centre differential component set\u003c\/li\u003e\n\u003cli\u003eDesigned for selected ARRMA 6S BLX vehicle versions\u003c\/li\u003e\n\u003cli\u003eNot guaranteed to fit every KRATON, TYPHON, TALION, OUTCAST, NOTORIOUS or MOJAVE generation\u003c\/li\u003e\n\u003cli\u003eNot a universal replacement for ARRMA 8S vehicles\u003c\/li\u003e\n\u003cli\u003eConfirm the exact part number against your vehicle's exploded diagram\u003c\/li\u003e\n\u003cli\u003eARRMA's historical parts cross-reference identifies ARA310959 as a replacement reference\u003c\/li\u003e\n\u003cli\u003eDifferential oil is not specified as included\u003c\/li\u003e\n\u003cli\u003eUse the correct differential fluid and follow the vehicle manufacturer's assembly instructions\u003c\/li\u003e\n\u003cli\u003eInspect mating gears, bearings, driveshafts and differential mounts during servicing\u003c\/li\u003e\n\u003cli\u003eEnsure correct gear mesh, sealing and screw tightness before operating the vehicle\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARRMA","offers":[{"title":"Default Title","offer_id":53289993437496,"sku":"ARAC4013","price":109.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2849\/9768\/files\/ARRMA_Centre_Differential_Set_50T_AR220029__ARAC4013.png?v=1792125709","url":"https:\/\/ozrc.com.au\/products\/arrma-centre-differential-set-50t-ar220029-arac4013","provider":"OZRC","version":"1.0","type":"link"}