This 17-page Bolens 5118H Parts Catalog PDF breaks down the whole 18 HP tractor into exploded views with factory part numbers: fender and grille, brake and speed control, steering and front axle, engine and fuel system, hydro and transaxle, right down to the Eaton Model 11 transmission internals. Each assembly drawing pairs with its own numbered parts list, so you match the piece in your hand to the exact number Bolens printed. You also get a full wiring diagram with legend covering the ignition switch, solenoid, starter, and cruise switch, plus the electrical harness parts list. Even the assembly notes are factory: the hydro and transaxle hardware torques to 25-30 ft. lbs., printed right on the drawing. No more guessing part numbers off a rusted casting at a swap meet. Bookmarked PDF; download it, pull it up on your phone at the workbench, and get this tractor back on the lawn.
Complete the set for your 5118H, Bolens 18 HP
What's Inside This Bolens 5118H, Bolens 18 HP Parts Manual
| System | Pages | Key Topics |
|---|
| Fender and Grille | 1-2 | Seat, Hood, Grille, Fender, Foot Rest, Side Cover, Grille Support, Side Cover Assembly |
| Brake and Speed Control | 3-4 | Brake Assembly, Speed Control Disc, Neutral Plate, Brake Pedal, Speed Control Rod, Brake Return |
| Steering and Front Axle | 5-6 | Steering Wheel, Front Axle, Steering Gear, Spindle Assembly, Tie Rod, Steering Bracket |
| Engine and Fuel System | 7-8 | Fuel Tank, Muffler, Drive Shaft, PTO Shaft, Engine Mount, PTO Guard, Fuel Line, Muffler Clamp |
| Hydraulic Cylinder | 9-10 | Cylinder, Rod Assembly, Head, Piston, Seals, Back-Up Rings, Cylinder Assembly, Control Arm, Rocker Arm, Drive Pin, Tube Assembly, Valve Link |
| Hydro and Transaxle | 11-12 | Filter, Manifold, Pump, Transaxle Housing, Differential Carrier, Axle, Bevel Gear |
| Wiring Diagram | 13-14 | Ignition Switch, Solenoid, Starter, Battery, Light Switch, Cruise Switch, Fuse, Attachment Drive Clutch, Headlights |
| Electrical System | 15-16 | Headlight Harness, Battery, Ignition Switch, Fuel Sender, Solenoid, Main Harness, Fuel Gauge, Battery Cable, Fuse |
| Eaton Transmission Model 11 Assembly | 17 | Charge Pump Kit, Input Shaft Sub Assembly, Pump Rotor and Ball Assembly, Cam Ring Assembly, Pintle Assembly, Motor Rotor and Ball Sub Assembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Brake and speed control linkage torque (item 50) | 24 ft. lb. (32 Nm) | p. 3 |
| Hydro and transaxle assembly torque | 25-30 ft. lbs. | p. 11 |
