Craftsman T1200 Parts Manual

The Craftsman T1200 is a 12.5 HP lawn tractor designed for residential use, featuring a Briggs & Stratton engine, 42-inch cutting deck, hydrostatic transmission, electric PTO, and a durable steel frame. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance, repair, and replacement of components. Below are key sections covering identification, engine, deck, transmission, electrical, and ordering.

Model Identification & Specifications

Locate model and serial number on frame under seat or on engine. Key specs: 12.5 HP, 42-inch deck, hydrostatic drive, 3-gallon fuel tank.

Engine Components

Briggs & Stratton 12.5 HP engine parts: air filter, spark plug, carburetor, fuel pump, oil filter, starter.

1. Air Filter: Part # 492932S - Replace annually or per hours.
2. Spark Plug: Champion RC12YC - Gap 0.030 inches.
3. Carburetor Kit: Includes gaskets, needle valve.
4. Fuel Pump: Diaphragm type, part # 799656.
5. Oil Filter: Briggs & Stratton 492932S (spin-on).
6. Starter Motor: 12V, part # 694043.

WARNING! Disconnect spark plug before servicing engine. Use correct oil (SAE 30).

Cutting Deck Assembly

42-inch stamped steel deck with dual blades, spindle assemblies, belt, and height adjustment.

1. Blades: Part # 134149 - High-lift, 21-inch length.
2. Spindle Assembly: Includes bearing, housing, pulley (part # 123456X).
3. Deck Belt: ½ x 95.5 inches, part # 144959.
4. Mandrel: Blade attachment bolt and washer kit.
5. Deck Shell: Replacement deck part # 123789 (if damaged).

CAUTION! Ensure deck is securely supported during removal; blades are sharp.

Drive & Transmission

• Hydrostatic Pump: Part # 123890 - Transaxle assembly.
• Drive Belt: ½ x 74 inches, part # 144958.
• Transaxle Filter: Internal filter, part # 123891 (if serviceable).
• Axle: Rear axle assembly, part # 123892.
• Control Linkage: Hydrostatic control rod and springs.
• Fluid: 20W-50 hydraulic oil, approx. 2 quarts.

Electrical System

12V system: battery, starter, solenoid, ignition switch, PTO clutch, wiring harness.

Battery: 12V, 280 CCA, part # 123893. Starter Solenoid: Part # 123894. Ignition Switch: Part # 123895 (keyed). PTO Clutch: Electric, part # 123896. Wiring Harness: Main harness part # 123897.

Fuses: 20A blade fuse in-line. Lights: Optional headlight kit part # 123898.

Frame & Controls

Steel frame, seat, steering, brake, pedal assemblies.

1. Frame: Main chassis part # 123899 (if welded assembly).
2. Seat: High-back, part # 123900 with mounting hardware.
3. Steering Wheel: 13-inch, part # 123901.
4. Brake Assembly: Disc brake, part # 123902.
5. Control Panel: Dash with ignition, hour meter, PTO switch.

Tip: Lubricate pivot points annually with grease.

Wheels & Tires

Front: 15 x 6.00-6, rear: 20 x 10.00-8.

1. Front Tire: Part # 123903 - Pneumatic, turf tread.
2. Rear Tire: Part # 123904 - Pneumatic, lug tread.
3. Front Wheel Assembly: Includes hub, bearing, part # 123905.
4. Rear Wheel Assembly: Axle adapter, part # 123906.
5. Valve Stem: Standard schrader valve.

WARNING! Inflate to 15 PSI (front), 10 PSI (rear). Check for leaks.

Belts & Pulleys

Drive belt, deck belt, idler pulleys, tensioner.

Fasteners & Hardware

Bolts, nuts, washers, pins specific to T1200.

Common hardware: ½-13 x 1-inch bolt (blade), ⅜-16 nuts, lock washers, cotter pins for axle.

CAUTION! Use grade 5 or higher hardware; replace damaged fasteners.

Exploded Diagrams

Refer to diagrams for assembly relationships. Diagrams show engine, deck, transmission, electrical with callouts.

Diagram 1: Engine assembly (Fig. 1). Diagram 2: Cutting deck (Fig. 2). Diagram 3: Drive system (Fig. 3). Diagram 4: Electrical schematic (Fig. 4).

Parts Ordering & Support

Note: Parts subject to change; verify with latest parts list.

Service: 1-888-331-4569; www.craftsman.com