John Deere LT166 Parts
Keep your LT166 mowing. Deck, engine, hood and drive parts for the John Deere LT166 lawn tractor, new, aftermarket and used, matched to your serial number.
- Same-day shipping on in-stock parts (order by 2pm EST)
- Free shipping over $75
- Fit confirmed before you buy
About the John Deere LT166
The John Deere LT166 is a lawn tractor built from about 1998 to 2001. It has a 16 hp Briggs & Stratton two-cylinder gasoline engine, a hydrostatic transmission, and was offered with 38, 42 and 48 inch mid-mount mower decks. Because it has been out of production for more than twenty years, some LT166 parts are now hard to find at dealers, which is where used and aftermarket parts come in.
LT166 Mower Deck Parts
- Deck spindles, spindle bearings and pulleys
- Mower blades for 38, 42 and 48 inch decks
- Deck drive belts and idler pulleys
- Deck wheels, gauge wheels and deck shells
Deck size matters: tell us which deck you have so we match the right blades, belt and spindles.
LT166 Hood, Body and Seat Parts
LT166 hoods crack with age and new replacements can be scarce. We source used and aftermarket hoods, hood hinges, grilles, fenders, seats and decals. If you need a John Deere LT166 hood, call with your serial number and we will check what is available.
LT166 Engine and Drive Parts
- Briggs & Stratton engine parts: carburetors, ignition coils, fuel pumps, gaskets and filters
- Starters, solenoids, voltage regulators and ignition switches
- Hydrostatic transmission parts and drive belts
- Steering gears, spindles, front wheels and tires
Hard-to-Find LT166 Parts
If your dealer says an LT166 part is no longer available, see discontinued John Deere parts. We search used and aftermarket sources. The serial tag on the LT166 is under the seat. See how to find your John Deere serial number.
Ordering LT166 Parts
Tell us these things and we will quote the right part.
- Serial number from the tag under the seat.
- Deck size: 38, 42 or 48 inch.
- The part, an old part number or a photo.
- Your preference: genuine, aftermarket or used, or let us quote all three.
How to Order in 3 Steps
- Call +1 (833) 368-6811 with your tractor make, model and serial number (it is on the ID plate, usually on the dash, frame or transmission housing).
- Tell us the part or send the old part number. If you only have a photo or a description, that works too.
- Get your quote. We confirm fit, give you the price with no shipping surprises, and you pay through a secure payment link. In-stock parts ordered by 2pm EST ship the same day.
Shop by brand: John Deere • Kubota • New Holland • Massey Ferguson • Case IH • International Harvester • Ford 3000 • Farmtrac • Used & Aftermarket
Common Questions
The LT166 was built from about 1998 to 2001.
The LT166 uses a 16 hp Briggs & Stratton two-cylinder gasoline engine.
The LT166 was offered with 38, 42 and 48 inch mid-mount decks. Blades, belts and spindles differ by deck size.
Yes, usually as a used or aftermarket part. Call and we will check what is available.
In-stock parts ship the same day when you order before 2pm EST, Monday to Friday. Orders over $75 ship free within the contiguous 48 U.S. states.
Get the right LT166 part the first time.
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