Contour Mower
mj840
Ventrac's Contour Mower features a 83 inch working width making quick work of precision mowing on high end properties. Three decks float independently and follow the contour of the terrain with up to 40 degrees of motion for each side deck. The MJ840 also features full rear rollers for even cutting and striping, rear discharge, and a flip-up deck design.
Feature List:- 83" Mowing width
- 40 degrees of motion for side decks
- Front-to-back motion for ground variation
- Rear discharge
- Full rear rollers for even cutting and striping
- Front rollers for anti-scalping
- Belt drive with gearbox for mechanical efficiency and reliability
- Flip-up deck design
- MJ840 CONTOUR MOWER 39.55160 Starting at $9,600 MSRP*
*Taxes, shipping & handling, setup, freight and/or delivery charges are not included. Price shown is for informational purposes only. Consult an authorized Ventrac Dealer for complete details, pricing, warranty and safety information. All prices are shown in U.S. Dollars for products sold in the United States only.
- 70.8087 KIT, MULCHING MJ840


















Ventrac Benefits
40 Degree Side Deck Motion

The contour deck flexes up to 20 degrees up or down (40 degrees range).
Scalp-Free Mowing

The independent decks follow the most challenging terrains with full-length rollers to prevent scalping of your course.
Easy Service Flip-Up Deck

Cleaning the deck and changing blades couldn't be easier with Ventrac's quick flip-up deck design.
Stand-Out Stripes

The three independent decks have full-length rollers to make stand out stripes.
mj840 SPECIFICATIONS
Specifications | 39.55160 |
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Info | |
Picture | ![]() |
Sales Model | MJ840 |
Full Description | MJ, MJ840 Contour Mower |
Product Type | Attachment |
Category | |
Attachment Type | Mower |
Front Mount | Ventrac Mount System |
Mower Type | Finish |
4000 Series Mount | |
Mower Specs | |
Cutting Width | 83 in |
Discharge Type | Rear |
Flip-Up Deck | |
Cutting Heights (Standard) | 3⁄4 to 31⁄2 in |
Cutting Positions | 12 |
Number of Blades | 6 (3 left hand, 3 right hand) |
Blade Type | 15 in |
Deck Construction | Multi-Gauge |
Deck Suspension | 4 front flat-free tires with 3 full rear rollers |
Dimensions | |
Overall Width | 84 in |
Length | 52 in |
Height | 22 in |
Weight | 584 lbs |
General | |
Anti Scalp Rollers | 5 |
Tip Speed | 16400 ft/min |