• Genuine John Deere OEM part  
• Maintains proper belt tension  
• Supports smooth drive operation  
• Durable long-lasting construction  
• Precision factory-engineered fit  
• Reduces belt wear and slippage

Product Description

The John Deere Powertrain Drive Idler AM121968 is a genuine OEM replacement part designed to ensure smooth belt movement and consistent power transfer within your equipment’s drive system. Engineered for durability and precision, this idler pulley helps maintain correct belt tension and alignment, reducing wear and supporting efficient drivetrain performance.

Manufactured to original John Deere factory specifications, the AM121968 offers accurate fitment, long-lasting reliability, and dependable operation under demanding conditions. Ideal for replacing worn or damaged idler components, it helps restore optimal belt tracking and improve overall powertrain efficiency across compatible John Deere equipment.

Compatible Equipment

• 13HP 
• 15HP 
• 16HP 
• 1338 
• 1438GS 
• 1438HS 
• 1538HR 
• 1538HS 
• 1546 
• 1646 
• 1646HS 
• LT150 
• LT155 
• LT160 
• LT170 
• LT180 
• LT190 
• LTR155 
• LTR166 
• LTR180 
• S2046 
• STX30 
• STX38 
• STX46 

Additional information

Heavy / Extra Large Parcels –
These items will incur an extra cost to deliver, please read the full delivery information below for further details. These items include 20L oils and ride-on toys.

Collection –
Collect available from any of our Tuckwells outlets. You will be contacted when the parcel is ready for collection.

Returns –
Unfortunately, we do not offer free returns at this stage

• Full Delivery & Returns Information