Eaton Fuller RTLO-18918B or RTLO18918B Transmission
The Eaton Fuller RTLO-18918B (also written RTLO18918B) is an 18-speed, twin countershaft heavy-duty manual transmission built for Class 8 linehaul, heavy-haul and vocational trucks. The RTLO model designation indicates a top-mounted range cylinder, twin countershaft, low-inertia design with overdrive gearing. Remanufactured exchange units are in stock and usually ship within 24 hours.
Eaton Fuller RTLO-18918B Specifications
| Model | RTLO-18918B (RTLO18918B) |
| Forward speeds | 18 |
| Torque capacity | 1,850 lb-ft |
| Overall ratio coverage | 19.7:1 |
| Low gear ratio | 14.40:1 deep reduction |
| Overdrive ratios | 0.73 and 0.86 double overdrive |
| Design | Twin countershaft, low-inertia, top-mounted range cylinder |
| Oil capacity | Approx. 28 pints (13.2 L) |
| Weight | Approx. 730 lb |
| Condition | Remanufactured — sold on an exchange basis (core charge applies) |
To ensure this is the correct unit for your truck, locate the data tag on the passenger side of your transmission and note the model number, TA number, and serial number before calling. All units are sold on an exchange basis; core charges apply and are subject to the manufacturer's core policy. Call us to confirm proper fit for your specific application.
A refundable core charge of $3,500.00 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-18918B or RTLO18918B 18-speed transmission
1,850 lb-ft torque capacity with 19.7:1 overall ratio coverage and a 14.40:1 deep-reduction low gear
Double overdrive design — 0.73 and 0.86 overdrive ratios for efficient highway cruising
RTLO model designation: top-mounted range cylinder, twin countershaft, low-inertia, overdrive
Sold on exchange basis - core charges apply per manufacturer core policy
To confirm correct fit, reference the data tag on the passenger side of your transmission
Data tag fields to have ready: model number, TA number, and serial number
Available through Pro Gear and Transmission - call us to verify fitment

