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QSB4.5 Camshaft Bearing 5298256 Engine Camshaft Bush Bearing Replacement for Cummins QSB4.5 Diesel Engine
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PARTS DESCRIPTION
Product Overview
Camshaft bearings support the camshaft as it rotates and help maintain the oil film and running clearance required for stable valve-train operation. The QSB4.5 Camshaft Bearing is supplied as a replacement solution for compatible Cummins QSB4.5 diesel engine repair applications.
Bearing outside diameter, inside diameter, width, oil-hole position, and installation location can differ between engine versions. Accurate part-number and dimension matching is therefore important before fitting a replacement set or individual bearing.
Product Information
- Product: QSB4.5 Camshaft Bearing
- Engine Model: QSB4.5
- Part Number: 5298256
- Brand: ipartkits
- Compatible With: For Cummins QSB4.5 Engine
Why This Part Matters
Camshaft bearings reduce direct friction between the camshaft journals and the engine structure while helping maintain the intended running clearance. Correct clearance supports oil distribution and stable camshaft rotation. A bearing with the wrong dimensions or oil-hole position may not install correctly or may interfere with lubrication.
When replacing these bearings, technicians should also inspect the camshaft journal surfaces and verify each bearing position. Some engine designs use different bearings across the same camshaft line, so complete identification is important.
Key Features
- Designed to support stable camshaft journal rotation
- Helps maintain the intended lubricating oil film around the camshaft
- Application-specific dimensions for compatible engine bearing locations
- Suitable for professional diesel engine overhaul and valve-train repair
- Part-number and engine-model verification support available before shipment
- Can be supplied together with matching camshafts and timing components
Fitment & Ordering Note
Camshaft bearing size and oil-hole position may vary between engine versions and between bearing locations in the same engine. Please confirm the part number, dimensions, and required quantity before ordering.
Related Engine Parts
Matching camshafts, timing gears, valves, rocker components, and other valve-train repair parts may also be available.
Why Choose
provides broad diesel engine parts coverage and practical fitment support for repair businesses worldwide. Customers can request model checking, part-number verification, MOQ 1 ordering, and fast dispatch for available stock.
Need Help Confirming Fitment?
For fitment or availability checking, share the engine model and -part information before placing the order.