Home› Engine > Cylinder Block Components› Sealed Power 4906MA Engine Crankshaft Main Bearing Set
Sealed Power 4906MA Engine Crankshaft Main Bearing SetOE Quality 60-Day Returns
Part #: 4906MA

Sealed Power 4906MA Engine Crankshaft Main Bearing Set

⚙️ 63 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$168.22Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Commercial Chassis, Fleetwood, DeVille, Eldorado, Seville, and Calais
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Engine Crankshaft Main Bearing Set options

Overview of Sealed Power Engine Crankshaft Main Bearing Set 4906MA

The Sealed Power 4906MA engine crankshaft main bearing set is designed for reliable performance in Cadillac vehicles. This full set of standard size bearings is crafted from A-series aluminum, providing durability and precise fitment for select Cadillac models.

  • Full set of engine crankshaft main bearings
  • Constructed from A-series aluminum for strength and wear resistance
  • Standard size bearings ensuring proper fit and function
  • Compatible with Cadillac Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville models
  • Part number 4906MA for accurate identification and replacement

Detailed Product Description

The Sealed Power 4906MA main bearing set is engineered to meet OEM specifications for Cadillac engines. Made from A-series aluminum, these bearings offer a balance of hardness and conformability, which helps maintain optimal crankshaft alignment and reduces wear. The standard size ensures compatibility with factory engine tolerances, making this set suitable for rebuilds or repairs on Cadillac Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville models. Using the correct bearing size and material is critical to engine longevity and performance.

Applications and Problem Solving

  • Replaces worn or damaged crankshaft main bearings in Cadillac engines
  • Addresses engine knocking or unusual noises related to bearing wear
  • Helps prevent crankshaft misalignment and excessive vibration
  • Reduces risk of engine damage due to bearing failure
  • Supports engine rebuilds requiring standard size main bearings

Installation Notes and Tips

Ensure the crankshaft journals are clean and free of debris before installation. Verify the bearing clearances with proper measuring tools to confirm standard size fitment. Lubricate bearings with assembly lube during installation to prevent initial wear. Follow Cadillac engine service manual procedures for torque specifications and installation sequence to maintain engine integrity.

Quality Assurance and Warranty

Sealed Power manufactures this main bearing set to meet industry standards for durability and performance. The use of A-series aluminum material ensures consistent quality and wear resistance. Part number 4906MA is backed by Sealed Power's quality control processes, providing confidence in fit and function for Cadillac Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville engines.

BrandSealed Power
Part Number4906MA
Package AlertFull set
Part MaterialA-Series aluminum
Standard SizeStandard

This part fits 63 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1984CadillacCommercial Chassis6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1984CadillacFleetwood6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1983CadillacCommercial Chassis6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1983CadillacFleetwood6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1982CadillacCommercial Chassis6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1982CadillacFleetwood6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1981CadillacCommercial Chassis6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1981CadillacDeVille6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1981CadillacEldorado6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1981CadillacFleetwood6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1981CadillacSeville6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1980CadillacCommercial Chassis6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1980CadillacDeVille6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1980CadillacEldorado6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1980CadillacFleetwood6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1980CadillacSeville6.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1979CadillacCommercial Chassis7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1979CadillacDeVille7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1979CadillacFleetwood7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1978CadillacCommercial Chassis7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1978CadillacDeVille7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1978CadillacEldorado7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1978CadillacFleetwood7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1977CadillacCommercial Chassis7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1977CadillacDeVille7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1977CadillacEldorado7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1977CadillacFleetwood7.0LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1976CadillacCommercial Chassis8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1976CadillacDeVille8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1976CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1976CadillacFleetwood8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1975CadillacCommercial Chassis8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1975CadillacDeVille8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1975CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1975CadillacFleetwood8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1974CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1974CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1974CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1974CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1973CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1973CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1973CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1973CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1972CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1972CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1972CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1972CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1971CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1971CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1971CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1971CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1970CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1970CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1970CadillacEldorado8.2LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1970CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1969CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1969CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1969CadillacEldorado7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1969CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1968CadillacCommercial Chassis7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1968CadillacDeVille7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1968CadillacEldorado7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.
1968CadillacFleetwood7.7LV8N/AFits standard size engine connecting rod bearings for A-Series aluminum engines.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1906KMBS658APMBS658CPMS2970ALMS970AL

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Related Articles