756-0978B Engine Pulley for Cub Cadet MTD RZT GTX LGT LT-1046

This Engine Pulley is a direct replacement engine/deck drive pulley compatible with Cub Cadet and MTD riding mowers including RZT, GTX, LGT, and LT-1046 series, and matches OEM Part# 756-0978B, 756-0978, and 756-0978A.

Product Overview

The Engine Pulley transmits rotational force from the engine to the deck belt system on Cub Cadet and MTD lawn tractors. This engine pulley is manufactured to exact hub dimensions for a secure crankshaft fit. Proper belt tracking and reduced vibration are hallmarks of this engine pulley, restoring consistent mowing performance.

Key Features & Performance

• Precision-balanced design reduces vibration and extends belt life
• Exact-spec belt groove geometry ensures smooth engagement and prevents belt throw-off
• Durable steel or cast-iron construction stands up to high torque and heat
• Correct OEM keyway and bore diameter for direct bolt-on installation
• Corrosion-resistant coating protects against moisture and debris buildup

Fitment & Compatibility

• Cub Cadet RZT series (zero-turn mowers)
• Cub Cadet GTX garden tractors
• Cub Cadet LGT lawn tractors
• MTD LT-1046 and compatible LT-series models
• Select models calling for pulley 756-0978B, 756-0978, or 756-0978A

Common Uses

• Replacing a worn or warped engine pulley causing belt squeal or misalignment
• Restoring blade drive when the pulley is noisy, bent, or out-of-round
• Preventive maintenance during PTO or deck belt replacement
• Eliminating deck vibration and uneven cuts linked to pulley groove wear

Technical Specifications

• Part Number(s): 756-0978B (replaces 756-0978, 756-0978A)
• Application: Engine-to-deck drive pulley for Cub Cadet and MTD tractors
• Construction: Precision-stamped steel/cast iron, balanced
• Groove Profile: OEM-spec V-profile for secure belt grip
• Compatible Belts: Matches OEM drive belts specified for listed models

Frequently Asked Questions

Q: What are the symptoms of a failing engine pulley? A: Symptoms include squealing belts, deck vibration, belts that roll off the pulley, or a lack of blade engagement even with a new belt; inspection often reveals a glazed or damaged groove.

Q: Does this pulley fit all Cub Cadet RZT models? A: It fits many RZT series mowers that require part number 756-0978B or its supersessions; check your specific model’s illustrated parts list to confirm the correct pulley number before ordering.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.