Product Description
National 18590 automatic transmission pinion bearing (taper bearing cone) designed for front inner placement. Factory replacement unit. Cone bore 1.6250 in (41.275 mm), cone length 0.6875 in (17.463 mm), cone radius 0.1400 in (3.556 mm). Sold as one piece.
Product Specifications
BrandNational
Manufacturer Part Number18590
Vehicle PositionFront Inner
Placement on VehicleFront Inner
Product TypeFactory Replacement
TypeAutomatic Transmission Pinion Bearing
Number of Pieces1
Cone Bore (Inch)1.6250
Cone Bore (MM)41.2750
Cone Length (Inch)0.6875
Cone Length (MM)17.4630
Cone Radius (Inch)0.1400
Cone Radius (MM)3.5560
Part DescriptionTaper bearing cone
Interchange Part Number01791144 15A12648 179114 18590 190832 218176 253607 4253607
Replaces Part Numbers42536078 503068 52942 550257 618026R91 631769R91 70179114 705423
Replacement Part Numbers784903 A6X1495 AM1984T ATY5314A BR18590 BT18590 C23567 F18590
Replace Part NumbersGP1201 JD8179 KW1257 M17706
UPC00724956060542
Country of OriginUnited States
Number of Pieces1
Product TypeFactory Replacement
Part DescriptionTaper bearing cone
Cone Bore (Inch)1.6250
Cone Bore (MM)41.2750
Cone Length (Inch)0.6875
Cone Length (MM)17.4630
Cone Radius (Inch)0.1400
Cone Radius (MM)3.5560
UPC00724956060542
Country of OriginUnited States