A-B144S9770032G1-AI MODEL 44 ZTR REPOWER- 25HP

One Fits Briggs & Fits Stratton 44S977-0032-G1 Professional Series 25 HP Replacement Engine for ZTR and Lawn/Garden Tractors

This is a complete Fits Briggs & Fits Stratton (B&S) Professional Series replacement engine designed for zero-turn riding (ZTR) mowers and lawn/garden tractors. The 44S977-0032-G1 is a twin-cylinder, air-cooled, 4-cycle OHV engine with a vertical shaft, packed single carton. It supersedes several earlier Vanguard and Intek series engine numbers listed below. Note: this engine has a 1" diameter crankshaft - verify your existing engine shaft diameter before ordering (some models use a 1-1/8" shaft).

Specifications

• Engine Series: Fits Briggs & Fits Stratton Professional Series (PXi 2500 Series)
• Displacement: 724cc
• Power Rating: 25 Gross HP
• Cylinders: 2 (Twin Cylinder)
• Valve Type: Overhead Valve (OHV)
• Shaft Orientation: Vertical
• Crankshaft: 1" Diameter x 3-5/32" Length, Tapped 7/16"-20, 1/4" Keyway
• Cooling: Air-Cooled
• Starter: 12V Electric Start (ReadyStart)
• Alternator: 16 Amp DC
• Cylinder Bore: Cast Iron Sleeve (Dura-Bore)
• Air Filtration: Dual Clean Premium System
• Fuel Pump: Included
• Oil Filter: Included
• Oil Capacity: 2.0 qt (1.9 L)
• Dry Weight: Approx. 90-92 lbs
• Muffler: Not Included
• Throttle: Remote Control
• Choke: Automatic (Choke-A-Matic)

Compatible Equipment

This engine is designed for use on zero-turn riding (ZTR) mowers and lawn/garden tractors. Compatible equipment brands include Ariens, Fits Craftsman, Fits Husqvarna, Fits Poulan Pro, Simplicity, Fits Cub Cadet, MTD, Fits Exmark, Fits Toro, and Fits John Deere machines originally equipped with a Fits Briggs & Fits Stratton twin-cylinder vertical-shaft engine. Verify your equipment's original engine model and crankshaft diameter before ordering.

Replaces Part Number(s):

44S877-0002-G1, 44S877-0037-G1, 44Q777-3137-G5, 44N877-0011-G1, 44N877-0039-G1, 44Q777-0047-G1, 441777-0027-E1, 44S977-0013-G1, 44S877-0002, 445577-3037, 445577-0027, 44L777-0027, 44L777-0037, 44L777-3137, 44L777-0137, 445577-0037, 446777-0127, 44P777-0027, 44Q777-0127, 44Q777-0137, 445777-0027, 44Q777-3137, 406777-0130-E1, 406777-0139-E1, 407777-0167-E1, 407777-0607-E2, 407777-2217-G1, 40G777-0122-G1, 40G777-0400-E1, 40H777-0119-G1, 40H777-0242-E1, 40U877-0012-G1, 441577-0113-E1

New aftermarket replacement part - not remanufactured, not used.