GM 6L80 and 6L90 1-2-3-4 pistons commonly crack due to cantilevered stress on the cast material. The OE part has been through several revisions in an attempt to correct this, but all OE versions are still chronically known to crack. Sonnax heavy duty 1-2-3-4 piston 104984-01 is made from stronger, billet aluminum and has superior design refinements that add additional strength to prevent breakage and deliver maximum performance throughout the life of the transmission.

Universal design replaces early and late OE versions
6061 Billet aluminum with design refinements for additional strength

More From This Category

Motive Gear Differential Super Bearing Kit, Timken, For CHEVROLET BLAZER 1969–1974, Kit

Motive Gear Differential Super Bearing Kit, Timken, For CHEVROLET BLAZER 1969–1974, Kit

$225.94

View
MANLEY Connecting Rod Pin Bushing, Bronze, .979 in. OD., .906 in. ID., .995 in. Length, Each

MANLEY Connecting Rod Pin Bushing, Bronze, .979 in. OD., .906 in. ID., .995 in. Length, Each

$16.34

View
Richmond Manual Transmission Input Shaft 17-spline Hardened Steel Super T-10 Plus Two Speed Each

Richmond Manual Transmission Input Shaft 17-spline Hardened Steel Super T-10 Plus Two Speed Each

$495.17

View
Sonnax Ring Gear Stabilizer Kit, Powerglide, Each

Sonnax Ring Gear Stabilizer Kit, Powerglide, Each

$258.63

View
TCI Torque Converter Bolts, 7/16-20 in., Hex Head, Steel, For Chrysler, Torqueflite 500, 727, 904LU, A-904, A-998, A999

TCI Torque Converter Bolts, 7/16-20 in., Hex Head, Steel, For Chrysler, Torqueflite 500, 727, 904LU, A-904, A-998, A999

$56.95

View
PHC Clutch Clutch Alignment Tool, For Honda Accord 2.4 Ltr 16V VTEC, K24Z3, 148kw Euro, 6 Speed, 6/08- 2008, Each

PHC Clutch Clutch Alignment Tool, For Honda Accord 2.4 Ltr 16V VTEC, K24Z3, 148kw Euro, 6 Speed, 6/08- 2008, Each

$6.47

View