An L111 badge tells you the model, but an older tractor may have a replacement engine or deck. John Deere’s lists the L111 as a 20 hp, two-cylinder Briggs & Stratton 40 lawn tractor with a hydrostatic Tuff Torq T40 transaxle. Deere’s covers an L111 with a 42-inch mower deck. Before ordering parts for a used machine, write down the tractor, engine and deck identifiers.
L111 specifications in Deere’s F5 manual
| Item | Published L111 specification | Check on a used machine |
|---|---|---|
| Engine | Briggs & Stratton 40; two cylinders; 14.9 kW (20 hp); 655.48 cc | Read the engine identification. A replacement may differ. |
| Transmission | Hydrostatic Tuff Torq T40 | Check forward and reverse operation after the tractor has warmed up. |
| Fuel capacity | 7.9 L (2.1 US gal) | Confirm the tractor identity before applying the manual’s figure. |
| Rear tires | 20 × 8.0–8 | Read the size molded into the tires; fitted tires can change. |
| Mower deck | Deere’s L111 parts guide covers a 42-inch deck | Find the deck identification and match belts and blades to it. |
A listing that calls the L111 a 19.5 hp Kohler model, gives it a 1.5-gallon tank, or describes 15-inch rear wheels conflicts with this Deere manual edition. Ask for clear photographs of the tractor and engine identification before trusting the listing. Neither Deere document can tell you whether a particular used tractor still has its original engine or deck.
Equipment & supplies
Identification tools for L111 Lawn Tractor
Read the machine and component markings before ordering. These inspection tools do not establish part fit.
Ullman HTC-2 inspection mirror
Read an accessible identification plate from another angle when collecting details for the matching manual.
Streamlight MicroStream pocket light
Read accessible identification and warning labels after following the machine's shutdown instructions.
As an Amazon Associate I earn from qualifying purchases.
Use three identifiers before ordering parts
- Tractor: record the product identification number. Deere’s links to the parts catalog and operator’s manual.
- Engine: record its model and serial information. If its plate disagrees with the published L111 engine specification, use the installed engine’s details when checking engine service parts.
- Deck: record its identification separately. Deere’s provides separate spaces for tractor and deck serial numbers. Confirm the deck before choosing belts, blades or a bagger.
If a plate is missing or illegible, pause the part order and compare photographs with Deere’s parts catalog or ask a Deere parts counter to identify the assembly. Matching a part by the L111 name or deck width alone can leave you with a component for a different setup. The 42-inch guide lists a conventional engine oil filter, AM125424; it does not support a claim that this tractor uses Deere’s Easy Change oil system.
What to inspect on a used L111
- Cold start and drive: ask to see the engine start cold, then drive forward and reverse after warm-up. Note delayed movement, unusual noise, leaks or unpredictable speed control.
- Deck and steering: with the engine off, inspect the deck shell and mounting points for corrosion or repairs. Look for obvious steering play. Ask the seller to demonstrate that the mower engages and cuts without abnormal vibration.
- Service evidence: compare receipts with the tractor, engine and deck identifiers. A receipt helps only when you can match it to that machine or the assembly serviced.
These checks help decide whether a machine deserves a closer inspection; they do not diagnose its condition or replace the operator’s manual. If the seller cannot demonstrate basic operation or document an uncertain repair, price and plan the purchase around that uncertainty rather than an assumed service history.
Attachments and service: verify the exact combination
A bagger, snow blade, cart or 48-inch deck seen in an advertisement is not proof of fit on your tractor. Check the attachment’s model number, required mounting hardware and operating limits against Deere’s catalog and instructions for the tractor and fitted deck. The engine rating alone does not establish compatibility.
The identifies engine oil, an oil filter, air and fuel filters, belts and blades for the configuration it covers. Use the matching operator’s manual for service instructions and intervals, then verify which parts are already on the machine. Fuel use, mowing time, slope ability, towing capacity and ownership cost cannot be read from the engine’s 20 hp rating.