TB450 XP™ 4x4 Self-Propelled Mower

21" 4x4 Self-Propelled Mower with 3-in-1 Capability

Model No. 12A-M2R1766


Where to Buy

The Troy-Bilt TB450 XP™ 4x4 mower is the industry’s first four-wheel drive mower that lets you switch between front-wheel drive, rear-wheel drive and all-wheel drive on the go. Equipped with a dependable 175cc* Briggs & Stratton® 775 Professional Series™ engine with ReadyStart™ starting system and 2-pull Briggs & Stratton® Starting Promise™, the TB450 XP™ delivers the long-lasting and durable performance you trust. Get a clean cut, every time with the TriAction™ cutting system. Smarter tire tread design provides more confident handling and traction. One-hand operation lets you switch to all-wheel drive while keeping one hand free. With the TB450 XP™ 4x4 mower, depend on the traction you need for any condition or terrain.

3-year Limited Warranty
TB450 XP 4x4 Self-Propelled Mower is rated 4.4 out of 5 by 22.
  • y_2019, m_10, d_14, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_22
  • loc_en_US, sid_2498872, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_troybilt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 108ms

  • 21" steel mulching deck
  • 3-in-1 convertible - side discharge, mulch or rear bag
  • Standard 2.3-bushel grass catcher (included)
  • Dual-lever deck height adjustment
  • One-Hand Operation
  • Protective Front Bumper
  • 175cc* Briggs & Stratton 775 Professional Series engine
  • 3-year limited warranty

*as rated by engine manufacturer

  • 21" TriAction™ cutting system w/ intergrated deck wash
  • Dual-lever deck height adjustment
  • Briggs & Stratton 775 Professional Series
  • 175cc*
  • Standard recoil with ReadyStart™
  • AWD
  • Variable Four Wheel Drive
  • 6 settings from 1.25" to 3.75"
  • 3-in-1, side discharge, mulch or rear bag
  • 2.3 bushel (included)
  • 1.2 qt.
  • 20oz SAE30 (included)
  • Adjustable 3 position Ergo w/ Comfort Grip
  • 8" front, 8" rear, All-Terrain Tread
  • 95 lbs.
  • 17.75 x 24 x 40.38
  • 3-year limited
Rated 3 out of 5 by from A nightmare to clean. This is a great mower, plenty of power, great on hills, but a nightmare to clean. I gave the mower 4 stars for its performance and ability to cut steep hills. The cut is great; the mower never stalls, even in tall grass. The nightmare came when it was time to do a total clean, after the cut season. This mower gets grass caught everywhere, including inside both the front and rear drive areas. But was most alarming, using a hose to flush the bottom of the deck, is not advised. Just after 5 cuts (I got the mower late in the season) rust developed on the rear axle and rear drive axle gears. I had to remove the rear drive gears, wire brush them and paint them to prevent rust. Understandably, few people clean equipment like I do, but with all the areas subject to grass and moisture, this is not the mower for anyone who can't work on lawnmowers. The cover to protect the drive belts was packed with wet smelly grass, as a result of using a hose to flush the deck. I will strictly be using compressed air, to clean this mower. I would recommend this mower for its ability to cut grass on hills and other rough terrain. I would not recommend this mower for those who can't disassemble and repair mowers.
Date published: 2018-10-31
Rated 3 out of 5 by from Chokes up badly on wet grass I bought the TB410 XP a little over a year ago. I liked it pretty well as far as the four wheel drive goes, but it is under powered and chokes up badly with heavy/wet grass.
Date published: 2018-09-14
Rated 5 out of 5 by from Self propelled mower I have had a mower for six months and it starts on the second pull. I find it very easy to walk behind and mow. I lovee the mulching that it does.
Date published: 2018-07-11
Rated 5 out of 5 by from Excellent performance Bought this two months ago and it was a great choice. Starts as advertised -- two pulls when cold, one when hot! 4 wheel drive works perfectly -- although the RWD is most effective as FWD does not have enough weight forward to work by itself except on level surfaces. Very pleased with the quality and evenness of the cut. Overall a great buy.
Date published: 2018-07-10
Rated 5 out of 5 by from This is the envy of all mowers! Bought this a year ago, I love how People slow down and look at the mower that tells me they know their lawn equipment because they always say wow! Nice mower❤️
Date published: 2018-07-10
Rated 5 out of 5 by from Best Mower I Have Had!!! After several other branded mowers I finally found the TB450 XP and it is the only one capable to cut my thick Bermuda lawn of over 1 acre. All others keep bogging down and cutting off. Not this one it keeps going going and going. 4 wheel drive also pulls this mower effortlessly through grass while others had to be physically pushed even with their self propelled feature. I say 5 stars.
Date published: 2018-07-10
Rated 4 out of 5 by from Mows great I was a little disappointed with this mower. I have bought rear wheel and front wheel drive mowers in the past and indeed I thought 4 wheel would be better. I had better luck with the rear wheel
Date published: 2018-07-10
Rated 5 out of 5 by from easy start It start very easy. it works great in sand you can use 2 or 4 wheel drive when you need all 4 wheels to mow.
Date published: 2018-06-26
  • y_2019, m_10, d_14, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_22
  • loc_en_US, sid_2498872, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_troybilt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 19ms

Operator's Manuals Disclaimer

Important Information - Please Read Carefully

The Operator's Manual is an important part of your new outdoor power equipment. It will help you assemble, prepare, maintain and safely operate your machine. Your outdoor power equipment was built to be operated according to the rules and instructions for safe operation which are contained in the operator's manual and on the machine itself.

Safety rules and instructions, if not followed, could endanger the personal safety and/or property of the operator and others. Read and follow all instructions in the manual before attempting to operate your outdoor power equipment. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. Your machine is capable of amputating hands and feet and throwing objects. Failure to observe the safety rules and instructions, both on the machine and in the Operator's Manual, could result in serious injury or death.

IMPORTANT: Troy-Bilt, its parents, affiliates and subsidiaries, is concerned about the safety of its customers and others. Due to the size of the Operator's Manual, some Operator's Manuals are broken down into two or more segments so that the entire Operator's Manual can be downloaded easily. Cub Cadet is requiring all those who wish to download a copy of the Operator's Manual to acknowledge that he/she will download the portion of the Operator's Manual that contains the Important Safe Operation Practices section, as stated below. This is to ensure that this section is reviewed and accessible when operating, servicing and/or maintaining the machine.


By clicking "I ACCEPT" below, you certify that you have read and accepted the above notice.

I Accept I Decline