Motor service

Start with the correct reference

Exact motor-plate removal and fixed-position gear-mesh chart. Clean and lightly oil motor bushings every 10 to 15 runs. This does not establish an unpublished Kv.

• Motor removal and gear mesh, PDF p. 29 (opens in a new tab)

  Manufacturer procedure · 92144-4 exact archived owner manual

• Motor cleaning interval, PDF p. 30 (opens in a new tab)

  Manufacturer procedure · 92144-4 exact archived owner manual

Parts, tools and consumables

Part links open an exact-model OEM listing. Quantities, reused hardware and condition-dependent replacements may need checking in the manual. A listed part is not an instruction to replace it.

Setup specifications

Motor

Titan 550 21T Reverse RotationStock

Sources

• Source 1: traxxas.com (opens in a new tab)
• Source 2: traxxas.com (opens in a new tab)

Motor size

550; Ø39 × 57 mm can Traxxas lists the fitted 3975R motor’s diameter as 39 mm, can length as 57 mm and overall length as 78 mm. These motor dimensions do not establish replacement clearance.Stock

Sources

• Source 1: traxxas.com (opens in a new tab)
• Source 2: traxxas.com (opens in a new tab)
• Source 3: traxxas.com (opens in a new tab)

Motor mount material

Plastic. Hot Racing explicitly describes the stock 8290 motor plate as plastic; its aluminum part is an optional replacement.Aftermarket spec

Sources

• Source 1: traxxas.com (opens in a new tab)
• Source 2: store.hot-racing.com (opens in a new tab)

Stock motor shaft

3 mmStock

Sources

• Source 1: traxxas.com (opens in a new tab)
• Source 2: traxxas.com (opens in a new tab)

Keep the axle positions and original units shown. Values describe the cited configuration. Replacement-derived and community figures keep their stated basis.