Product Description:
RC4WD TCI Heavy Duty R4 Single Speed Scale Transmission – CNC Billet Aluminum Licensed by TCI Automotive
DOES NOT INCLUDE FRONT MOTOR
Overview
Bring authentic scale performance and engineering precision to your RC build with the RC4WD TCI Heavy Duty R4 Single Speed Scale Transmission. Officially licensed by TCI Automotive, this detailed transmission combines strength, realism, and function in one compact CNC-machined billet aluminum unit. Designed for compatibility with the RC4WD 1/10 V8 Scale Engine (Z-S1043), the R4 transmission is the perfect foundation for creating an ultra-realistic scale drivetrain in your Trail Finder 2 or custom 1/10 crawler project.
With finely machined detailing and the performance to match, this transmission doesn’t just look the part — it delivers reliable power transfer and long-lasting durability on the trail or display stand.
Precision Engineering
Each R4 transmission housing is CNC-machined from billet aluminum, providing outstanding rigidity and superior heat dissipation. The precision internal gearing features a 10.1:1 gear ratio, engineered for smooth torque delivery and consistent drivetrain performance. Compact proportions allow seamless installation into tight engine bays, while the true-to-scale shape adds realism unmatched by typical crawler transmissions.
Scale Appearance & Compatibility
The R4 transmission is designed to pair perfectly with the RC4WD 1/10 V8 Scale Engine (Z-S1043), aligning output shafts for an authentic engine-to-gearbox layout. When combined, the setup replicates the appearance of a full-scale powertrain, making it ideal for Trail Finder 2 builds, custom chassis projects, and scale garage dioramas.
Shown in example builds with:
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RC4WD 1/10 V8 Scale Engine (Z-S1043)
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540 Crawler Brushed Motor 35T (Z-E0005)
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Trail Finder 2 V8 Engine Mounts (Z-S1239)
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Trail Finder 2 Truck Kit w/ Mojave II Body Set
(All sold separately)
Specifications
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Material: CNC-machined Billet Aluminum
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Body Width: 1.99 in (50.6 mm)
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Body Length: 3.07 in (78 mm)
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Body Height: 2.36 in (60 mm)
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Output Shaft Length: 0.33 in (8.5 mm)
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Output Shaft Diameter: 0.19 in (5 mm)
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Gear Ratio: 10.1:1
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Weight: 5.86 oz (166 g)
What’s Included
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(1) RC4WD TCI Heavy Duty R4 Single Speed Scale Transmission
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(1) 14T 48P Pinion Gear
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(1) 36T / 20T 48P Gear
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(10) M2.5 x 5 mm Silver Socket Head Cap Screws (Z-S1207)
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(1) Metal Shield Bearing 5 x 11 x 4 mm
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(1) TCI Transparent Decal Sheet
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(1) TCI Small Decal Sheet
Replacement Parts
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Replacement Gears for R4 Transmission (Z-G0067)
Required Parts
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RC4WD 1/10 V8 Engine (Z-S1043)
Summary
The RC4WD TCI Heavy Duty R4 Single Speed Scale Transmission delivers the perfect combination of precision engineering, durability, and scale realism. CNC-machined from billet aluminum and officially licensed by TCI Automotive, it’s a must-have upgrade for builders who demand authenticity in both appearance and performance. Pair it with the RC4WD V8 engine for a complete, true-to-life drivetrain setup worthy of any high-end scale build.
