K&M Krushers Gas Rock Crusher Replacement Small Motor Pulley – 3/4" Bore for 11" & 14" Crushers
Keep your K&M Krushers gas-powered rock crusher running efficiently with this replacement small motor pulley featuring a 3/4-inch bore, designed for compatible K&M 11-inch and 14-inch gas rock crusher models.
This replacement drive pulley mounts to the gas engine's output shaft and works with the crusher's belt-drive system to transfer power from the engine to the crushing assembly. Whether you're replacing a worn or damaged pulley or keeping a spare on hand, this essential replacement component helps maintain reliable crusher operation.
Ideal for gold prospectors, mineral collectors, and small-scale mining operations, this replacement pulley helps keep your rock crushing equipment ready for processing gold-bearing quartz, ore samples, and other mineral materials.
Key Features
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Compatible with 11" & 14" K&M Crushers: Designed for compatible K&M gas-powered rock crusher models.
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3/4" Bore Diameter: Fits compatible gas engine output shafts measuring 3/4 inch in diameter.
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Small Motor Pulley: Designed for the engine side of the crusher's belt-drive system.
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Efficient Power Transmission: Transfers rotational power from the gas engine through the drive belt to the crusher assembly.
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Replacement Drive Component: Ideal for replacing worn, bent, cracked, or damaged motor pulleys.
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Helps Maintain Proper Belt Alignment: Supports reliable belt operation when correctly installed and aligned.
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Durable Construction: Intended for demanding rock crushing and mineral processing applications.
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Cost-Effective Repair: Replace a damaged pulley without purchasing an entirely new crusher.
Product Specifications
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Brand: K&M Krushers
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Product Type: Replacement Small Motor Drive Pulley
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Crusher Compatibility: K&M 11" & 14" Gas Rock Crushers
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Bore Diameter: 3/4"
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Pulley Position: Gas Engine / Motor Drive Shaft
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Drive System: Belt-Driven
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Application: Gas-Powered Rock Crusher Replacement Part
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Quantity: 1 Pulley
Compatibility
Designed for the following compatible K&M Krushers models:
Important Compatibility Note: This pulley features a 3/4-inch bore and is intended for compatible gas engines with a matching output shaft. Verify your engine shaft diameter, keyway configuration, belt groove profile, and existing pulley dimensions before ordering.
This is the small motor pulley, not the larger pulley mounted on the crusher drive assembly.
What's Included
Please Note: Gas engine, rock crusher, drive belt, shaft key, set screws, and additional mounting hardware are NOT included unless specifically stated. This listing is for the replacement motor pulley only.
Why Replace Your Rock Crusher Motor Pulley?
The motor pulley is an essential part of your gas rock crusher's belt-drive system. It transfers power from the engine to the larger crusher pulley, helping drive the crushing mechanism.
Over time, vibration, heavy use, improper belt tension, or shaft misalignment can contribute to pulley wear and damage.
Common signs that your motor pulley may need replacement include:
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Visible cracks, chips, or damaged pulley grooves
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Excessive vibration during operation
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Drive belt slipping or unusual belt wear
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Wobbling or misalignment of the pulley
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Loose or damaged shaft connections
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Unusual noise from the belt-drive assembly
Replacing a damaged pulley can help restore proper belt alignment, improve power transmission, and reduce unnecessary wear on connected components.
Installation & Maintenance Recommendations
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Shut off the gas engine, allow it to cool, and disconnect the spark plug wire before performing maintenance.
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Remove the appropriate protective guards to access the motor pulley.
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Inspect the existing pulley, engine shaft, drive belt, and related components for wear or damage.
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Verify that the replacement pulley matches the original bore size, keyway, and belt groove configuration.
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Install the replacement pulley according to the manufacturer's recommendations.
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Check pulley alignment and adjust belt tension as specified by the manufacturer.
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Secure all components and reinstall protective guards before operating the crusher.
Safety Reminder: Never operate a rock crusher with exposed moving belts or pulleys, loose drive components, or missing protective guards.
K&M Krushers Replacement Parts at High Plains Prospectors
High Plains Prospectors carries K&M Krushers rock crushers, replacement pulleys, bearings, shafts, screens, and a wide selection of gold prospecting and mineral processing equipment.
Whether you're crushing gold-bearing quartz, processing mineral samples, or maintaining your rock crushing equipment, having the correct replacement parts helps minimize downtime and keep your operation productive.
Order your K&M Krushers Small Motor Pulley with 3/4" Bore for 11" & 14" Gas Rock Crushers today from High Plains Prospectors!
These are the same knobs that were shipped with your crusher. 1/4-20
