What does a 2nd gear accumulator piston do?

The 2nd gear accumulator piston controls hydraulic pressure within the transmission. This pressure is used to engage the clutch pack responsible for second gear, helping to smooth out the shift.

Why upgrade from a stock piston?

Stock accumulator pistons can wear over time or develop cracks, leading to less precise shifting. An upgraded billet piston is stronger and more durable, helping to maintain consistent performance.

Does this piston come with any seals or O-rings?

This part is the accumulator piston itself. It is recommended to inspect and replace any seals or O-rings associated with the accumulator bore during installation.

ATS Diesel 96-07 Dodge 2500/3500 5.9L Cummins 47RE/48RE Billet 2nd Gear Accumulator Piston

Specifications

Brand: ATS Diesel
Part #: 3140092104
UPC: 3140092104

ATS Diesel 96-07 Dodge 2500/3500 5.9L Cummins 47RE/48RE Billet 2nd Gear Accumulator Piston

Name: ATS Diesel 96-07 Dodge 2500/3500 5.9L Cummins 47RE/48RE Billet 2nd Gear Accumulator Piston
Brand: ATS Diesel
Price: 51.83 USD
Availability: InStock

$51.83

ATS Diesel billet 2nd gear accumulator piston for 96-07 Dodge 5.9L Cummins 47RE/48RE transmissions. Improves 2nd gear engagement.

Key Features

Fits 1996-2007 Dodge Ram 2500 and 3500 with 5.9L Cummins and 47RE/48RE transmission.
Billet aluminum construction offers improved strength and durability over stock.
Helps ensure a more solid and consistent engagement for second gear.
Direct replacement for the factory 2nd gear accumulator piston.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

This is a billet 2nd gear accumulator piston from ATS Diesel, made for 1996-2007 Dodge Ram 2500 and 3500 trucks with the 5.9L Cummins engine and either the 47RE or 48RE automatic transmission. This part is crucial for how your transmission shifts into second gear. It helps control the hydraulic pressure that engages the clutch pack for that gear.

The factory accumulator piston can sometimes wear or crack, leading to less precise or delayed shifts. By upgrading to this billet aluminum piston, you're getting a stronger, more durable part that can handle the demands of a Cummins engine. This improved piston helps ensure a more solid and consistent engagement when shifting into second gear, which can make a noticeable difference in how your truck drives, especially under load.