Model B18

Beautiful, productive mowing in a compact package

B18 Model Overview

The B18 has been discontinued. Explore current Model B mowers here.

Production Start Date: 02/20/2004
Production End Date: 09/30/2020
Serial Number Range: 68441-166214

The productive B18 does its best work in tight spaces and on hillsides but is also at home on flat, wide open turf. Using Walker add-ons will keep it busy all year long at home or in commercial work.

Type: Non-Collection
Power: 18 HP
Engine: Briggs & Stratton
Ideal Application: Residential Properties
Key Attributes: Hillside Stability, Compact, Agile
Standard Options: 18 x 8.5-10 Turf Tire, Standard Seat
Decks:
Popular Add-ons:
36” Single-Stage Snowblower
48” Dozer Blade
Boom Sprayer

Compatibility

Decks

S36

S42

S48

S56

M36

M42

M42B

M48

M52 Kit

Attachment

36" Single-Stage Snowblower

48" Dozer Blade

Dethatcher

Boom Sprayer

Spyker Spreader Mount

Specifications

Engine

Manufacturer: Briggs & Stratton Vanguard

Model: Briggs Vanguard V-Twin

Displacement: 570 cc (34.8 cu. in.)

Max Power: 18 HP @ 3600 RPM

Governed RPM: 3650

Max Torque: 29.5 ft-lbs

Cooling System: Air

Fuel: Gasoline (87 octane minimum)

Fuel Capacity: 4 gal (15.1 liter)

Electrical

Battery: 12V, 300CCA

Charging System: Flywheel Alternator

Charging Output: 16 Amp DC (Regulated)

Transmission

Manufacturer/Model: Dual, Independent Hydro-Gear ZT3100 Integrated Transaxles

Steering: Hand Lever Control, Individual Wheel

Forward Speed Control: Precision Friction Lock Lever, Cruise Control, with Neutral-Park Position

Parking Brake: Internal Mechanical Cog Lock for each Transaxle (Single Lever Control)

Forward MPH (km/h): 0-8 mph (0-13 km/h) Infinitely variable

Neutral: Transaxle Release by Manual Dump Valve

Blade Drive

PTO Shaft: Sliding Spline Shaft with Two (2) High-Speed U-Joints

Blade Drive Clutch and Brake: Manual Belt Tightener Clutch and Band Brake [Stops Blades within Five (5) Seconds of Disengagement]

Deck

Recommended Cut Width: Side Discharge in. (cm): 36 to 48, and 56 (97 to 122, and 142), Mulch in. (cm): 36 to 48 (97 to 122)

Cutting Height: 1 to 4 in (2.5 to 10 cm)

Deck Suspension: Independent Torsion-Flex Frame with Caster Wheels and Counterweight Springs

Tires

Drive: 18 x 8.50-10 (Pneumatic 4-Ply, Low-Profile)

Tailwheel: 11 x 4.00-5 (Pneumatic)

Deck Caster: 8 x 3.00-4 (Foamed rubber standard, optional pneumatic)

Size & Weight

LENGTH

Tractor Only: 62.5 in (159 cm)
Tractor with M48 deck: 90.25 in (229 cm)
Tractor with deck tilted: 72 in (183 cm)
Tractor wheel base: 40 in (102 cm)

WIDTH

Tractor Only (Outside Tire): 38.5 in (98 cm)
Tractor with M48 deck: 49 in (125 cm)

HEIGHT

Tractor: 39.5 in (100 cm)

WEIGHT

Tractor Only: 584 lbs (265 kg)
Tractor with M48 deck: 790 lbs (358 kg)

Manuals

Released	Class	Model	Type	Model S/N Range	Manual P/N	Download
07/13/2023	Model-B	B23	Parts	178742 - AND ON	4000-43	PDF
07/13/2023	Model-B	B23	Operator's	178742 - AND ON	4000-44	PDF
05/25/2023	Model-B	B27i	Operator's	178742 - AND ON	4000-42	PDF
05/01/2023	Model-B	B27i	Parts	178742 - AND ON	4000-41	PDF
04/20/2022	Model-B	B23	Parts	172949 - 178741	4000-40	PDF
03/22/2022	Model-B	B23	Operator's	172949 - 178741	4000-39	PDF
01/04/2022	Model-B	B27i	Parts	172977 - 178741	4000-38	PDF
12/22/2021	Model-B	B27i	Operator's	172977 - 178741	4000-36	PDF
12/08/2021	Model-B	B27i	Parts	165084 - 172976	4000-37	PDF
04/26/2021	Model-B	B23	Operator's	169308 - 172948	4000-35	PDF
04/23/2021	Model-B	B23	Parts	169308 - 172948	4000-34	PDF
08/27/2020	Model-B	B18	Operator's	161000 - 166214	4000-32	PDF
08/27/2020	Model-B	B19	Operator's	161698 - 164558	4000-33	PDF
04/23/2020	Model-B	B27i	Parts	162292 - 165083	4000-27	PDF
04/01/2020	Model-B	B27i	Operator's	162292 - 172976	4000-28	PDF
03/31/2020	Model-B	B18	Parts	157301 - 166214	4000-31	PDF
03/26/2020	Model-B	B19	Parts	152272 - 164558	4000-30	PDF
02/05/2020	Model-B	B23i	Parts	149239 - 163226	4000-29	PDF
06/25/2019	Model-B	B18	Operator's	151820 - 161000	4000-24	PDF
05/23/2019	Model-B	B19	Operator's	155209 - 161697	4000-25	PDF
12/14/2018	Model-B	B18	Parts	151820 - 157300	4000-26	PDF
09/25/2018	Model-B	B23i	Operator's	154037 - 163226	4000-23	PDF
02/16/2018	Model-B	B19	Parts	149239 - 152271	4000-22	PDF
02/07/2018	Model-B	B23i	Parts	146779 - 149238	4000-21	PDF
11/22/2017	Model-B	B19	Operator's	134381 - 155208	4000-19	PDF
11/10/2017	Model-B	B18	Operator's	133002- 151819	4000-18	PDF
10/09/2017	Model-B	B18	Parts	133002 - 151819	4000-20	PDF
12/15/2016	Model-B	B19	Parts	137381 - 149238	4000-16	PDF
01/14/2016	Model-B	B23i	Operator's	124998 - 133533	4000-14	PDF
12/21/2015	Model-B	B25p	Operator's	133534 - AND ON	4000-13	PDF
12/21/2015	Model-B	B18	Operator's	125166 - 133001	4000-11	PDF
04/01/2015	Model-B	B23i	Parts	133534 - 146778	4000-15	PDF
04/01/2015	Model-B	B23i	Operator's	133534 - 154036	4000-17	PDF
04/01/2015	Model-B	B25p	Operator's	130000 - 133534	4000-9	PDF
02/07/2014	Model-B	B18	Parts	125166 - 133001	4000-10	PDF
10/23/2013	Model-B	B25p	Parts	126729 - AND ON	4000-8	PDF
10/01/2013	Model-B	B19	Parts	124800 - 137380	4000-7	PDF
10/01/2013	Model-B	B19	Operator's	124800 - 137380	4000-12	PDF
4/20/2012	Model-B	MBK23	Operator's	116942 - 124997	4000-5	PDF
4/20/2012	Model-B	MBK23	Parts	116942 - 124997	4000-6	PDF
04/01/2010	Model-B	MB	Operator's & Parts	104436 - 124799	4000-4	PDF
09/01/2008	Model-B	MB	Operator's & Parts	96431 - 104435	4000-3S	PDF
09/01/2006	Model-B	MB	Operator's & Parts	85248 - 96430	4000-3	PDF
12/15/2005	Model-B	MB	Operator's & Parts	79432 - 85247	4000-2	PDF
10/01/2004	Model-B	MB	Operator's & Parts	68441 - 79431	4000-1	PDF