The Eaton Fuller K-3700 or K3700 is a Master Rebuilder Kit designed for RTLO-series transmissions including the RTLO-16713A. This comprehensive kit covers the major wear and service items needed for a full transmission rebuild, including countershaft gears (4300191, 4307114), the main drive gear (4307126), input shaft assembly (S-1659), sliding clutch (4306647), range slave valve assembly (A-5000), splitter cover assembly (A-6863), low synchronizer assembly (A-7254), aux direct synchronizer assembly (A-7331), main case countershaft front bearings (4308397), and reverse gear idler shaft bearings (4308403). Sealing components include gasket kit K-2199, complete O-ring kit K-2804, oil seal with slinger K-2262, and shim kit K-2805. Air system parts include filter/regulator assembly A-4740, pre-formed air hose assemblies, elbows, connectors, and a clutch brake disc assembly. Call us to confirm fitment for your specific transmission configuration.
S-1659 - Input Shaft Assembly x1
4307126 - Main Drive Gear x1
4300191 - Countershaft Gear x2
4307114 - Countershaft Gear x2
4306647 - Sliding Clutch x1
4308397 - Main Case Countershaft Bearing, Front x2
4308403 - Reverse Gear Idler Shaft Bearing x2
4308452 - Bearing x2
21356-BOX - Bearing x1
4302074-BOX - Bearing x4
5566508-BOX - Bearing x1
81504 - Ball Bearing x1
A-5000 - Range Slave Valve Assembly x1
A-6863 - Splitter Cover Assembly x1
A-7254 - Low Synchronizer Assembly x1
A-7331 - Aux Direct Synchronizer Assembly x1
A-8030 - Retainer Assembly x1
4301840 - Sliding Clutch x1
4305575 - 3rd and 4th Yoke x1
85541 - Clutch Brake Disc Assembly x1
K-2199 - Gasket Kit x1
K-2262 - Oil Seal with Slinger x1
K-2804 - O-Ring Kit, Complete x1
K-2805 - Shim Kit x1
A-4740 - Air Filter/Regulator Assembly x1
55509 - Air Hose Assembly x2
55518 - Air Hose Assembly x1
55527 - Air Hose Assembly x1
12815 - Clutch Release Shaft Bushing x4
14373 - Magnetic Disc x3
14897 - Spring x3
15918 - Position Finder Spring x3
71205 - Sealant x1
71206 - Silicone Lubricant x1
L-2013-05 - Instruction Letter x1
Features
Includes countershaft gears, main drive gear, and input shaft assembly
Range slave valve assembly (A-5000) and splitter cover assembly (A-6863) included
Low synchronizer (A-7254) and aux direct synchronizer (A-7331) assemblies included
Main case countershaft front bearings (4308397 x2) and reverse gear idler shaft bearings (4308403 x2)
Complete sealing coverage: gasket kit K-2199, O-ring kit K-2804, oil seal with slinger K-2262, and shim kit K-2805
Air system components: filter/regulator assembly A-4740, air hose assemblies, elbows, and connectors
Additional Information
Kit K-3700 Component List (selected key parts):S-1659 - Input Shaft Assembly x1
4307126 - Main Drive Gear x1
4300191 - Countershaft Gear x2
4307114 - Countershaft Gear x2
4306647 - Sliding Clutch x1
4308397 - Main Case Countershaft Bearing, Front x2
4308403 - Reverse Gear Idler Shaft Bearing x2
4308452 - Bearing x2
21356-BOX - Bearing x1
4302074-BOX - Bearing x4
5566508-BOX - Bearing x1
81504 - Ball Bearing x1
A-5000 - Range Slave Valve Assembly x1
A-6863 - Splitter Cover Assembly x1
A-7254 - Low Synchronizer Assembly x1
A-7331 - Aux Direct Synchronizer Assembly x1
A-8030 - Retainer Assembly x1
4301840 - Sliding Clutch x1
4305575 - 3rd and 4th Yoke x1
85541 - Clutch Brake Disc Assembly x1
K-2199 - Gasket Kit x1
K-2262 - Oil Seal with Slinger x1
K-2804 - O-Ring Kit, Complete x1
K-2805 - Shim Kit x1
A-4740 - Air Filter/Regulator Assembly x1
55509 - Air Hose Assembly x2
55518 - Air Hose Assembly x1
55527 - Air Hose Assembly x1
12815 - Clutch Release Shaft Bushing x4
14373 - Magnetic Disc x3
14897 - Spring x3
15918 - Position Finder Spring x3
71205 - Sealant x1
71206 - Silicone Lubricant x1
L-2013-05 - Instruction Letter x1
