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Sealed Power MA Series Main Bearings 4999MA20 Bearings, 0.020 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Chrysler, Dodge, Plymouth, 360, Set of 5

SKU: SLP4999MA20

Main Bearings

Sealed Power MA Series Main Bearings 4999MA20 Bearings, 0.020 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Chrysler, Dodge, Plymouth, 360, Set of 5

SKU: SLP4999MA20

Main Bearings
A$211.47
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

These Sealed Power MA Series main bearings can actually polish the journals on your crankshaft. That's because there's a small percentage of silicon mixed in with the aluminum and tin that make up the bearing-surface alloy. The silicon is there for wear resistance, but its toughness actually smoothes the journals of a crank whose surface hasn't been optimized! This special surface alloy is laid over a high-strength 1010 steel backing and delivers improved seizure and corrosion resistance, as well as better control of wall variance. It also helps to minimize debris embedding, which can score the crank's surface.

Part Type

Main Bearing Set

Data: v4.2 - Upd: 2026-09-30 14:11:30

Specifications

Product Attributes - Brand
Sealed Power
Product Attributes - Manufacturer's Part Number
4999MA20
Product Attributes - Part Type
Main Bearings
Product Attributes - Product Line
Sealed Power MA Series Main Bearings
Product Attributes - UPC
614046632516
Product Attributes - Bearing Usage
Performance
Product Attributes - Engine Crankshaft Undersize (in.)
0.020 in.
Product Attributes - Engine Crankshaft Undersize (mm)
0.50mm
Product Attributes - Grooved Bearing
Yes
Product Attributes - Groove Location
Upper and lower
Product Attributes - Groove Style
1/2
Product Attributes - Thrust Bearing Oversize
Stock
Product Attributes - Bearing Material
Bi-metal aluminum alloy, A-Series
Product Attributes - Quantity
Sold as a set of 5.

Reference Information

Brand Name/s Sealed Power
StreetFX SKU slp4999MA20
SFX Item ID 5029765
Supplier Item Code 5029765
Manufacturer SKU 4999MA20
Manufacturer UPC 614046632516
Alternative References SEA4999MA20

Compatibility

Application Data
  • MakeCHRYSLER
    Beginning Year1974
    Ending Year1980
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
  • MakeCHRYSLER
    ModelCORDOBA
    Submodel300
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelCORDOBA
    Submodel300
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelCORDOBA
    Submodel300
    Beginning Year1979
    Ending Year1980
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelCORDOBA
    SubmodelBASE
    Beginning Year1975
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelCORDOBA
    SubmodelBASE
    Beginning Year1975
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelCORDOBA
    SubmodelBASE
    Beginning Year1978
    Ending Year1980
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelCORDOBA
    SubmodelCROWN
    Beginning Year1980
    Ending Year1980
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelCORDOBA
    SubmodelLS
    Beginning Year1980
    Ending Year1980
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelBASE
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelBASE
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelBASE
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelMEDALLION
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelMEDALLION
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelMEDALLION
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelSALON
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelSALON
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelLEBARON
    SubmodelSALON
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelBASE
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelBASE
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelBASE
    Beginning Year1974
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelBASE
    Beginning Year1974
    Ending Year1980
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelBASE
    Beginning Year1979
    Ending Year1979
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeL
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelCUSTOM
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeJ
  • MakeCHRYSLER
    ModelNEWPORT
    SubmodelCUSTOM
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Liter5.9
    CID360
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    Engine VIN CodeK

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