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SKU:29533074
Suncoast ALLISON A TRIM SOLENOID LB7/LLY 01-05
Suncoast ALLISON A TRIM SOLENOID LB7/LLY 01-05
Description
Allison A-Trim Pressure Control Solenoid
Part Number: 29533074
The Allison A-Trim Pressure Control Solenoid (29533074) is an OE-style replacement solenoid designed for 2001–2005 GM Duramax trucks equipped with Allison automatic transmissions. This solenoid installs in the valve body and plays a key role in regulating hydraulic pressure used for clutch apply control, helping the transmission maintain smooth, consistent shift quality under varying load conditions.
As solenoids age, internal wear and electrical issues can cause pressure control problems that show up as harsh shifts, delayed engagement, shift flare, or inconsistent shift feel. Replacing a weak or failing A-Trim solenoid helps restore proper hydraulic control and dependable drivability, especially during towing and daily-use situations where stable pressure control matters most.
Key Features and Benefits
- OE-style replacement for Allison A-Trim pressure control function
- Helps restore proper clutch apply pressure and shift consistency
- Designed to improve drivability by correcting pressure-related shift concerns
- Direct-fit valve body solenoid for service or rebuild work
- Ideal for preventative replacement during valve body service
Common Symptoms of a Weak or Failed A-Trim Solenoid
- Harsh or erratic shifting
- Delayed engagement into gear
- Shift flare or inconsistent shift timing
- Pressure control related drivability issues
Applications
- 2001–2004 Chevrolet Silverado 2500HD 6.6L Duramax LB7
- 2001–2004 Chevrolet Silverado 3500 6.6L Duramax LB7
- 2001–2004 GMC Sierra 2500HD 6.6L Duramax LB7
- 2001–2004 GMC Sierra 3500 6.6L Duramax LB7
- 2004.5–2005 Chevrolet Silverado 2500HD 6.6L Duramax LLY
- 2004.5–2005 Chevrolet Silverado 3500 6.6L Duramax LLY
- 2004.5–2005 GMC Sierra 2500HD 6.6L Duramax LLY
- 2004.5–2005 GMC Sierra 3500 6.6L Duramax LLY
Fitment notes: Verify transmission model and valve body configuration before ordering. This is intended for Allison-equipped LB7 and LLY Duramax applications within the model years listed.
Fitments
2005 Chevrolet Silverado 2500 HD
2005 Chevrolet Silverado 3500 HD
2005 GMC Sierra 2500 HD
2005 GMC Sierra 3500 HD
2004 Chevrolet Silverado 2500 HD
2004 Chevrolet Silverado 3500 HD
2004 GMC Sierra 2500 HD
2004 GMC Sierra 3500 HD
2003 Chevrolet Silverado 2500 HD
2003 Chevrolet Silverado 3500 HD
2003 GMC Sierra 2500 HD
2003 GMC Sierra 3500 HD
2002 Chevrolet Silverado 2500 HD
2002 Chevrolet Silverado 3500 HD
2002 GMC Sierra 2500 HD
2002 GMC Sierra 3500 HD
2001 Chevrolet Silverado 2500 HD
2001 Chevrolet Silverado 3500 HD
2001 GMC Sierra 2500 HD
2001 GMC Sierra 3500 HD
Instructions
Specifications
SKU: 29533074
GTIN: 840385607681
Manufacture Name: Suncoast Performance
Shipping Weight: 6 lb
Shipping Length: 5 in
Shipping Width: 8 in
Shipping Height: 3.25 in
EO Number:
Cross Reference #
Warranty
California Proposition 65 Warning
California Proposition 65 Warning - P65warnings.ca.gov
29533074
Suncoast ALLISON A TRIM SOLENOID LB7/LLY 01-05
Allison A-Trim Pressure Control Solenoid
Part Number: 29533074
The Allison A-Trim Pressure Control Solenoid (29533074) is an OE-style replacement solenoid designed for 2001–2005 GM Duramax trucks equipped with Allison automatic transmissions. This solenoid installs in the valve body and plays a key role in regulating hydraulic pressure used for clutch apply control, helping the transmission maintain smooth, consistent shift quality under varying load conditions.
As solenoids age, internal wear and electrical issues can cause pressure control problems that show up as harsh shifts, delayed engagement, shift flare, or inconsistent shift feel. Replacing a weak or failing A-Trim solenoid helps restore proper hydraulic control and dependable drivability, especially during towing and daily-use situations where stable pressure control matters most.
Key Features and Benefits
- OE-style replacement for Allison A-Trim pressure control function
- Helps restore proper clutch apply pressure and shift consistency
- Designed to improve drivability by correcting pressure-related shift concerns
- Direct-fit valve body solenoid for service or rebuild work
- Ideal for preventative replacement during valve body service
Common Symptoms of a Weak or Failed A-Trim Solenoid
- Harsh or erratic shifting
- Delayed engagement into gear
- Shift flare or inconsistent shift timing
- Pressure control related drivability issues
Applications
- 2001–2004 Chevrolet Silverado 2500HD 6.6L Duramax LB7
- 2001–2004 Chevrolet Silverado 3500 6.6L Duramax LB7
- 2001–2004 GMC Sierra 2500HD 6.6L Duramax LB7
- 2001–2004 GMC Sierra 3500 6.6L Duramax LB7
- 2004.5–2005 Chevrolet Silverado 2500HD 6.6L Duramax LLY
- 2004.5–2005 Chevrolet Silverado 3500 6.6L Duramax LLY
- 2004.5–2005 GMC Sierra 2500HD 6.6L Duramax LLY
- 2004.5–2005 GMC Sierra 3500 6.6L Duramax LLY
Fitment notes: Verify transmission model and valve body configuration before ordering. This is intended for Allison-equipped LB7 and LLY Duramax applications within the model years listed.
Suncoast ALLISON A TRIM SOLENOID LB7/LLY 01-05