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Belt Idler 3062602X 3060883 3060884 Fits for Cummins Engine M11 ISM11 QSM11 L10 6B5.9 4ISBE 4B4.5 is backordered and will ship as soon as it is back in stock.
Powering 10,000+ Commercial Fleets
One Year Warranty
Easy 60-day Return
Expert support & Fitment Guarantee
Aftermarket belt idler engineered for precise belt tension management and reliable accessory drive performance in Cummins engine applications. Precision-manufactured components ensure drop-in compatibility with correct fitment.
Fits Cummins Engine Models:
The belt idler keeps your Cummins engine's accessory drive system running smoothly — a worn or seized idler leads to belt slippage, premature belt wear, and potential accessory failure on the road or job site. This replacement unit delivers:
Essential for accessory drive maintenance, idler pulley replacement, and belt system repair. Keep your Cummins M11, ISM11, QSM11, L10, 6B5.9, 4ISBE, and 4B4.5 engine running at peak efficiency on every haul.
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Estimated delivery time 3-6 workdays
We don't have a core charge for any products.
To start a return, please use our return portal. Items should be unused, not installed, clean, in their original packaging and accompanied by proof of purchase. Please contact support if you need help with the current return instructions or applicable costs.
Orders placed within one hour and not yet fulfilled can be cancelled from the customer order page. After one hour, or once the order has been fulfilled, please contact support for the next steps.
Available payment methods include major credit and debit cards, PayPal, Apple Pay, Google Pay, Shop Pay and Klarna. Availability can vary by order and checkout, so the payment options shown at checkout apply.
Most packages delivered within New Zealand arrive in 4–7 working days. Packages over 68 kg can take 5–10 working days. Timing can also vary with product availability, destination, shipping service, customs processing, weekends, public holidays or carrier delays.
New Zealand orders are billed in NZD.
Compare the listed part number, machine make, model, engine details and specifications with your equipment records. Fitment can vary by configuration and serial range, so contact support with the part number and machine details if you are unsure. Fitment should be confirmed before installation.
Mailed & Couriered Shipments (Online Shopping)
For NZ$1,000 or less goods value, no customs duty or border entry fees are collected by the New Zealand Customs Service.
For over NZ$1,000 customs value, formal customs entry is required and the customer must pay 15% GST, applicable customs duties, and border processing fees such as the Import Entry Transaction Fee.
Aftermarket belt idler engineered for precise belt tension management and reliable accessory drive performance in Cummins engine applications. Precision-manufactured components ensure drop-in compatibility with correct fitment.
Fits Cummins Engine Models:
The belt idler keeps your Cummins engine's accessory drive system running smoothly — a worn or seized idler leads to belt slippage, premature belt wear, and potential accessory failure on the road or job site. This replacement unit delivers:
Essential for accessory drive maintenance, idler pulley replacement, and belt system repair. Keep your Cummins M11, ISM11, QSM11, L10, 6B5.9, 4ISBE, and 4B4.5 engine running at peak efficiency on every haul.
