DISCLAIMER

This is a digital STL file. No physical product will be shipped.

All sales are final. Due to the nature of digital downloads, no refunds or exchanges are offered.

This is an original Tremendous Marine RC digital design and is not affiliated with, endorsed by, or associated with any real-world boat manufacturer.

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TMRC Yammy 250 V3 Outboard — STL Pack

The next evolution of the TMRC outboard lineup is here.

Introducing the TMRC Yammy 250 V3 STL Pack — engineered as a direct bolt-on upgrade for the TMRC 3660 V3 platform and designed specifically around the proven TFL lower unit setup.

This version features a redesigned mounting structure for improved rigidity, cleaner fitment, and better long-term durability under high-power setups.

Built for serious RC offshore applications.

What's Included

• Yammy 250 V3 cowling

• Updated V3 midsection

• Swivel bracket components

• Integrated mounting hardware locations

• Trim-compatible architecture

• Direct bolt-on compatibility with the TMRC 3660 V2 system

• STL files for 3D printing

Technical Specifications

Motor Compatibility: 3660 Brushless Water-Cooled Setup

Lower Unit Compatibility: TFL Lower Unit

Drive Shaft Length: TBD

Lower Unit Mounting Hardware: 25 mm M2 screws

Steering / Swivel Bolt: M3 × 80 mm

Platform: Direct bolt-on to the existing TMRC V2 system

Recommended Print Settings

Material: PETG / ASA / ABS

Walls: 5 walls

Infill: 5% 3D Honeycomb

Hardware: Heat inserts strongly recommended

Increase infill around high-stress mounting areas if running aggressive setups.

Designed For

• High-performance RC center consoles

• Catamarans

• Offshore race builds

• Twin, triple, quad, and quint outboard setups

• Scale replica projects

Required Non-Printable Components (Not Included)

These components are not printable and must be sourced separately.

3660 Brushless Motor (2150KV)

https://amzn.to/3OrRagp

Lower Unit: TFL B54210 H-KIT-E (not included)

4.0 mm Stainless Steel Drive Shaft

Length: TBD

Elastic Shaft Coupler (5 mm → 4 mm)

https://a.aliexpress.com/_msaWfy5

Reference Motor Mount Screw (Optional)

https://www.mcmaster.com/91273A349/

Any standard M3 screw of suitable length may be used.

Assembly Video

Watch the complete assembly process for the TMRC V3 outboard platform on Instagram:

https://www.instagram.com/p/DbCGa96wUpC/

This video demonstrates the assembly process and serves as a reference for installing the Yammy 250 V3 outboard.

Important Disclaimer

This is a digital STL file pack only.

No physical product will be shipped.

Files are intended for personal use only. Redistribution, resale, sharing, or commercial resale of the files or printed parts is strictly prohibited.

TMRC is not affiliated with Yamaha Motor Corporation. This product is an independently designed RC-inspired component intended for hobby use.

Due to the digital nature of this product, all sales are final and non-refundable.

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TMRC

Handcrafted Performance.

Built by Enthusiasts, for Enthusiasts.

Stay Tremendous.