8L90
Impeller Hub
Part No. GM-90-99G
Fits 4.3L and 5.3L units with RPO code MSU. Replaces butt-weld OE hubs.
View InstructionsSonnax impeller hub GM-90-99G replaces worn or damaged impeller hubs in GM 8L90 torque converters. The Sonnax hub has been upgraded with a large, reinforced flange with a piloting diameter for accurate alignment and superior weld characteristics. The flange also provides a substantial backup surface for impeller-side thrust bearing GM-N-22.
- Hub Mount: Flanged
- Material: Steel
- Pump Drive Style: Flats
- Assembled Height: 1.855"
- Flange Outer Dia.: 3.850"
- Height: 2.000"
- Journal Dia.: 2.307"
Where to Buy
- Existing Customers: Contact your sales representative.
- New Customers: Fill out the form and a sales representative will contact you.
Related Sonnax Parts
Required
Recommended
6L80, 6L90 (300mm), 6L90 (Captive Clutch), 8L90
Bearing Race GM-N-23
Used with GM-N-22.
- Tang Count: 3 I.D.
- Material: Hardened Steel
- Thickness: 0.077"
- Inner Dia.: 2.600"
- Outer Dia.: 3.420"
Required
Recommended
Required
Recommended
1000/2000/2400, 2006-Later, 1000/2000/2400, 2006-Later, Multi-Plate Performance Converter, 1000/2000/2400, Early, 1000/2000/2400, Early, Multi-Plate Performance Converter, 8L90, LCT 1000 (Captive Clutch), LCT 1000 (Captive Clutch) Multi-Plate Performance Converter, Saturn VTi-CVT
Hub Cover MI-HC-C
- Material: Plastic
- Color: Clear
- For Hub Dia.: 2-5/16"
Required
Recommended
8L90
Impeller Hub GM-90-83G
Fits 6.2L units.
- Hub Mount: Flanged
- Pump Drive Style: Flats
- Material: Hardened Steel
- Assembled Height: 1.723"
- Flange Outer Dia.: 4.170"
- Height: 1.866"
- Journal Dia.: 2.307"
Required
Recommended
6L80, 6L90 (300mm), 6L90 (Captive Clutch), 8L90
Thrust Bearing GM-N-22
- Bearing Style: Partially Enclosed
- Material: Hardened Steel
- Inner Dia.: 2.502"
- Thickness: 0.159"
- Outer Dia.: 3.583"