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Tamiya TT-02 Oil Gear Diff Unit — image 1 of 5
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Tamiya TT-02 Oil Gear Diff Unit
Tamiya TT-02 Oil Gear Diff Unit
Tamiya TT-02 Oil Gear Diff Unit
Tamiya TT-02 Oil Gear Diff Unit
Tamiya TT-02 Oil Gear Diff Unit

Tamiya TT-02 Oil-Filled Gear Diff Unit HC-54875

Brand: Tamiya

Part No: HC-54875

$41.96 RRP $46.89

Backorder: Expected 31st July 2026

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Fits These Models (55)

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Frequently Bought With

Other items customers often buy with the Tamiya TT-02 Oil Gear Diff Unit

Fastrax Tamiya TT-02 Aluminium /Steel Universal Driveshaft Fastrax Tamiya TT-02 Aluminium /Steel Universal Driveshaft
$17.81
Fastrax Tamiya TT-02 Aluminium Front/Rear Prop Shafts (2) Fastrax Tamiya TT-02 Aluminium Front/Rear Prop Shafts (2)
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Fastrax Tamiya TT-02 Aluminium Main Driveshaft Fastrax Tamiya TT-02 Aluminium Main Driveshaft
$7.63

Description

Refine your TT-02 drivetrain with the Tamiya TT-02 Oil Gear Diff Unit (HC-54875). This sealed, oil-filled differential lets you fine-tune cornering balance and traction by changing silicone oil viscosity or using diff putty, helping you adapt the car to a wide range of track conditions.

Features

  • Oil-filled, sealed design for smooth, efficient drive
  • Tuning flexibility with different silicone oil grades or gear diff putty
  • Glass fibre-reinforced nylon gear case for durability
  • Die-cast bevel gears for consistent performance
  • Gasket included to help maintain a reliable seal

What’s Included

  • Glass fibre-reinforced nylon gear case parts x1
  • Gasket x1
  • Die-cast bevel gears x4

Tuning Guidance

  • Lighter silicone oils are suggested for loose/low-traction surfaces
  • Heavier oils are suggested for high-traction tracks to calm diff action

Suggested Compatibility and Notes

  • Suggested compatibility: Tamiya TT-02 series chassis variants
  • For TT-02 and TT-02D, a suggested pairing is Tamiya 53792 RC Universal Shaft Assembly
  • For TT-02B, a suggested pairing is Tamiya 53791 RC Universal Shaft Assembly (DF-02)
  • Not suggested compatibility with TT-01/TT-01E due to a bearing spacing difference (~0.5 mm) which may cause binding
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Specifications

Oil-filled sealed gear diffs have become a standard tuning part for many of Tamiya’s performance race cars. This TT-02 version can be used on any of Tamiya’s TT-02 chassis variants to further improve the cars tuning options.

Oil-filled gear diffs offer the user to add different viscosity silicone oils into the differential gears housing in order to change the rate of speed in which the differential gears rotate. The rate of rotation can be tuned depending on the track surface traction level. Lighter oils are advised in loose track conditions, whereas high traction conditions favor heavier oils.

• Glass fiber-reinforced Nylon Gear Case Parts x1
• Gasket x1
• Die-Cast Bevel Gears x4
• Oil-filled gear differential units facilitate smooth, efficient drive. Use different grades of oil, gear diff putty, etc. to quickly adjust your setup.
• Compatible with TT-02 series chassis (Item 53792 RC Universal Shaft Assembly required for TT-02, TT-02D; Item 53791 RC Universal Shaft Assembly DF-02 required for TT-02B).

NOTE:This item will NOT FIT the TAMIYA TT-01/TT-01E chassis. The bearing spacing is .5mm too wide and will bind if you attempt to install on a TT-01 variant chassis.



Key Info:
  • Brand: Tamiya
  • Part No: HC-54875
  • Barcode: 4950344548750
  • Fitment: Option Part

Delivery & Returns

Standard Shipping

£3.95 to most of the UK

Express Shipping

£6.95 to most of the UK

Worldwide Shipping

Available at checkout

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Questions & Answers

Real questions from real customers. Why not ask your own?
Are these gears steel and would two be required for Tamiya TT02
Jason Lahme / 2nd February 2023

Internal are metal the outer (black) gears are plastic , and yes you would need 2 for front and back of the car.

Steve @ Wheelspin Models
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Tamiya TT-02 Oil Gear Diff Unit Manuals & Guides

How-To Guides & Articles