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Truck Engine Bearing Kits

When the bottom end starts knocking, you’re already on borrowed time. At Fitzgerald Truck Parts, we supply bearing kits built to handle the pressure of heavy-duty diesel engines and keep your truck working the way it should.

 

A complete bearing kit includes the critical components that support your crankshaft and rotating assembly. Our diesel engine bearing kits typically include main bearings, connecting rod bearings, cam bearings, and thrust washers. These parts reduce friction, maintain proper clearances, and keep oil flowing where it needs to go.

 

Worn bearings don’t just hurt performance. They lead to crankshaft damage, oil pressure loss, and costly failures. That’s why replacing bearings during a rebuild is standard practice. Our engine bearing kits are designed to restore durability and keep your engine running strong through demanding miles.

 

We carry truck bearing kits for proven platforms like Cummins ISX and Detroit Diesel Series 60 engines. Whether you’re doing preventative maintenance or a full overhaul, our semi-truck bearing kits give you the reliability you need to finish the job right.

 

Shop Bearing Kits for Cummins, Detroit Diesel, and Heavy-Duty Truck Engines

We stock main bearing kits and rod bearing kits for the engines that keep fleets moving. You'll find options for Cummins, Detroit Diesel, and other heavy-duty applications, all built for performance and long service life.

 

Our inventory includes complete lower-end solutions, individual bearing sets, and supporting components used in rebuilds and repairs. Buying complete kits helps save time and keeps your components matched for proper fit and function.

 

You can also explore related products like a bearing and race kit, browse additional engine components, or step up to Reman Engines if your engine needs a full replacement. For easier installs, add installation kits to your order.

 

Use the filters above to quickly find the right kit by engine model or manufacturer.

 

How to Choose the Right Bearing Kit for Your Diesel Engine

Start with your engine details. Confirm the model, series, and specifications such as Cummins ISX or Detroit Diesel Series 60.

 

Next, determine the requirements of the rebuild. Full lower end rebuilds call for complete kits, while smaller repairs may only need a specific component like a rod or main bearings.

 

Always verify part numbers and fitment before ordering. Proper tolerances matter when it comes to engine performance and longevity.

 

Browse above to buy truck engine bearing kits that match your engine and get your truck back to work. If you need help, our customer service team is ready to assist.

 

Bearing Kit FAQs

What is included in a truck bearing kit?

Most kits include main bearings, rod bearings, cam bearings, and thrust washers used to support engine rotation.

How often should bearings be replaced?

They are typically replaced during major rebuilds or when oil analysis or physical symptoms indicate significant wear.

What happens if bearings wear out?

You may experience engine knocking, significant oil pressure loss, and eventually catastrophic internal damage if the bearings seize or spin.

Are aftermarket bearings reliable?

Yes. Quality aftermarket bearings are widely used in diesel rebuilds and are engineered to meet or exceed OEM specifications for heavy-duty performance.

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  • Detroit Diesel Series  60 Thrust Bearing Kit

    Detroit Diesel

    Series 60 Thrust Bearing Kit

    The Series 60 Thrust Bearing Kit from Detroit Diesel is a genuine Detroit Diesel heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Detroit 60 Series Main Bearing...

    $154.55
  • PAI Truck Parts ISX Main Bearing Kit

    PAI Truck Parts

    ISX Main Bearing Kit

    The ISX Main Bearing Kit from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Cummins ISX Main Bearing Kit Standard...

    $212.39
  • PAI Truck Parts Main Bearing - Single Set

    PAI Truck Parts

    Main Bearing - Single Set

    The Main Bearing - Single Set from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Engineered for the demands of heavy-duty diesel powertrains, it's built to deliver dependable performance mile after mile.PAI Main...

    $26.61
  • Cummins ISX Connecting Rod Bearing Set

    Cummins

    ISX Connecting Rod Bearing Set

    The ISX Connecting Rod Bearing Set from Cummins is a genuine Cummins heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Standard Rod Bearing KitFractured...

    $111.16
  • Detroit Diesel Detroit Lower End Bearing Kit

    Detroit Diesel

    Detroit Lower End Bearing Kit

    The Detroit Lower End Bearing Kit from Detroit Diesel is a genuine Detroit Diesel heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Fitment: Confirm this part...

    $516.59
  • Detroit Diesel Lower End Bearing Kit - Slip Pin Piston

    Detroit Diesel

    Lower End Bearing Kit - Slip Pin Piston

    The Lower End Bearing Kit - Slip Pin Piston from Detroit Diesel is a genuine Detroit Diesel heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Fitment: Confirm...

    $437.27
  • PAI Truck Parts PAI Cam Bearing Set of 7

    PAI Truck Parts

    PAI Cam Bearing Set of 7

    The PAI Cam Bearing Set of 7 from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Fitment: Confirm this part fits...

    $67.98
  • PAI Truck Parts PAI Slip Pin Rod Bearing Set of 6 Coated

    PAI Truck Parts

    PAI Slip Pin Rod Bearing Set of 6 Coated

    The PAI Slip Pin Rod Bearing Set of 6 Coated from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.PAI Slip Pin Rod...

    $266.38
  • Detroit Diesel Lower End Bearing Kit - Bolt On Narrow Bearing

    Detroit Diesel

    Lower End Bearing Kit - Bolt On Narrow Bearing

    The Lower End Bearing Kit - Bolt On Narrow Bearing from Detroit Diesel is a genuine Detroit Diesel heavy-duty truck part you can count on. Engineered for the demands of heavy-duty diesel powertrains, it's built to deliver dependable performance mile...

    $509.95
  • PAI Truck Parts PAI Detroit Series 60 Thrust Washer Set of 2

    PAI Truck Parts

    PAI Detroit Series 60 Thrust Washer Set of 2

    The PAI Detroit Series 60 Thrust Washer Set of 2 from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.Fitment:...

    $13.51
  • PAI Truck Parts Rod Bearing Kit - Set of 6

    PAI Truck Parts

    Rod Bearing Kit - Set of 6

    The Rod Bearing Kit - Set of 6 from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Built to keep your diesel running strong through the daily grind of over-the-road and vocational work.ROD BEARING KIT SET OF...

    $126.45
  • PAI Truck Parts Detroit Diesel Series 60 Rod & Main Bearing Set

    PAI Truck Parts

    Detroit Diesel Series 60 Rod & Main Bearing Set

    The Detroit Diesel Series 60 Rod & Main Bearing Set from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Engineered for the demands of heavy-duty diesel powertrains, it's built to deliver dependable performance...

    $207.25
  • PAI Truck Parts PAI Detroit Series 60 Crank Shaft  Main Bearing Set PAI Truck Parts PAI Detroit Series 60 Crank Shaft  Main Bearing Set

    PAI Truck Parts

    PAI Detroit Series 60 Crank Shaft Main Bearing Set

    The PAI Detroit Series 60 Crank Shaft Main Bearing Set from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Engineered for the demands of heavy-duty diesel powertrains, it's built to deliver dependable performance...

    $15.66
  • PAI Truck Parts PAI Detroit Series 60 Main Bearing - Single Set

    PAI Truck Parts

    PAI Detroit Series 60 Main Bearing - Single Set

    The PAI Detroit Series 60 Main Bearing - Single Set from PAI Truck Parts is a genuine PAI Truck Parts heavy-duty truck part you can count on. Engineered for the demands of heavy-duty diesel powertrains, it's built to deliver dependable performance mile...

    $18.55
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