Sealed Power 8-2555A rod bearing set for the 1999-2023 Chevrolet Silverado 1500 5.3L and other vehicles lines the big end of each connecting rod, where the rod meets the crankshaft. Each Sealed Power engine connecting rod bearing rides on an oil film against its crankshaft journal.
- A-Series bi-metal aluminum alloy bearing material
- Greater seizure resistance than tri-metal material
- Designed to dramatically reduce or eliminate bearing wear
- Made with silicon for greater surface hardness
- Silicon particles help polish the crankshaft journal to further reduce wear during operation
- Built using ISO & QS certified manufacturing
A knock from the lower engine that speeds up with engine rpm, a low oil pressure warning or metal flakes in drained oil can mean the rod bearings are worn. A worn oil pump can also drop oil pressure, so these signs alone don't prove the bearings are the cause.
This rod bearing set is also a direct-fit replacement for the 1999-2023 GMC Sierra 1500 5.3L and the 1995-2023 Chevrolet Tahoe 4.8L / 5.3L / 5.7L / 6.0L / 6.2L.
Specifications
Fit and size
- Housing bore: 2.2247 to 2.2252 in (56.5070 to 56.5200 mm)
- Standard shaft: 2.0990 to 2.1000 in (53.3150 to 53.3400 mm)
- Oil clearance: 0.0005 to 0.0028 in (0.0130 to 0.0710 mm)
- Wall thickness (max): 0.0622 in (1.5800 mm)
- Overall length (max): 0.8420 in (21.3900 mm)
- Quantity per vehicle: 1 set
Build and materials
- Material: A-Series bi-metal aluminum alloy with silicon
- Manufacturing: ISO & QS certified
- Country of origin: United States
In the box
This listing holds one rod bearing set, and each engine takes one set.
Interchange: 8B6956-STD
CB663A8 · RB3104 · BB253JSTD · CR807SI
This part cross-references / interchanges with the following part numbers:
CB663A8, RB3104, BB253JSTD, 8B6956-STD, CR807SI
