The Eaton Fuller RTLO-22918AAS3R is an 18-speed manual transmission available under part number TN-G20-12X or TNG2012X. The RTLO model designation identifies a rear-mounted, low-inertia, overdrive-capable configuration in Fuller's heavy-duty twin-countershaft family. Before ordering, locate the data tag on the passenger side of your existing transmission and confirm the model number (e.g., RTLO-22918AAS3R) and TA number to ensure this unit matches your application. Due to the size and specialized handling this assembly requires, contact Pro Gear and Transmission directly to arrange the transaction and coordinate freight details. Call us to confirm proper fit for your specific truck and drivetrain configuration.
A refundable core charge of $5,600.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
Eaton Fuller RTLO-22918AAS3R 18-speed manual transmission
Part number TN-G20-12X or TNG2012X
RTLO series: rear-mounted, low-inertia, overdrive twin-countershaft design
Packaged dimensions: 24 in. H x 36 in. W x 48 in. L
Sold as a complete transmission assembly (each)
Verify model number and TA number from your transmission data tag before ordering
Tech Specs
- Part Number: TN-G20-12X or TNG2012X
- Transmission Model: RTLO-22918AAS3R
- Configuration: 18-Speed Manual Transmission
- Series: Eaton Fuller RTLO (Rear, Low-Inertia, Overdrive)
- Package Dimensions (H x W x L): 24 in. x 36 in. x 48 in.
- Sold As: Each (complete assembly)
