Aisin Seiki AS68RC Billet Valve Body w/ PulseDelete™ (Lifetime Warranty)
Aisin Seiki AS68RC Billet Valve Body w/ PulseDelete™ (Lifetime Warranty)
Aisin Seiki AS68RC Billet Valve Body w/ PulseDelete™ (Lifetime Warranty)

Aisin Seiki AS68RC Billet Valve Body w/ PulseDelete™ (Lifetime Warranty)

Next Gen Drivetrain, Inc.


Next Gen Drivetrain Project Carbon® AS68RC Billet Valve Body with PulseDelete™

Complete AS68RC Valve Body Upgrade for 2007.5–2012 Ram & Sterling Trucks

The Next Gen Drivetrain Project Carbon® AS68RC Billet Valve Body with PulseDelete™ is engineered as a comprehensive hydraulic upgrade for 2007.5–2012 Aisin Seiki AS68RC transmissions used in Ram and Sterling applications.

Fitment

Fits ALL 2007.5–2012 AS68RC transmissions, including Ram and Sterling applications.

Next Gen Drivetrain also guarantees compatibility with all AS68RC pump configurations, eliminating one of the biggest fitment concerns customers can encounter when replacing or upgrading an AS68RC valve body.

Whether your truck is used for:

  • Daily driving

  • Heavy towing

  • Hotshot work

  • Commercial service

  • High-mileage commuting

  • Performance applications

the Project Carbon® AS68RC valve body is designed to improve hydraulic integrity, shift consistency, clutch control, cooler flow, and long-term transmission reliability.

30-Day 100% Risk-Free Satisfaction Guarantee

We believe customers should be able to experience the product before being permanently committed to it.

That is why qualifying Next Gen Drivetrain valve bodies are backed by our:

30-Day 100% Satisfaction Guarantee

Install it.

Drive it.

Put it to work.

If you are not 100% satisfied, you may return the valve body within 30 days of delivery for a full refund—even if it has already been installed and used, subject to our published guarantee terms.

We are confident in the engineering behind the Project Carbon® AS68RC valve body, and we want customers to be able to judge the results for themselves.

No-Time-Limit Core Returns

Transmission projects do not always happen on schedule.

That is why Next Gen Drivetrain offers a no-time-limit core-return policy.

Return your qualifying AS68RC valve-body core:

  • A week later

  • A month later

  • Several months later

  • Whenever your installation is complete

There is no core-return deadline under the published program.

Next Gen Drivetrain also covers qualifying return shipping, helping make the core-refund process as simple as possible.

Why Upgrade the AS68RC Valve Body?

The valve body is the hydraulic control center of the AS68RC transmission.

It does not physically create line pressure—the transmission pump does.

The valve body is responsible for controlling what happens to that pressure after it leaves the pump.

It must:

  • Regulate line pressure

  • Direct fluid to individual clutch circuits

  • Control shift timing

  • Manage clutch apply and release

  • Operate accumulator circuits

  • Control converter and lubrication circuits

  • Prevent internal hydraulic leakage

If the valve body cannot contain and direct oil effectively, the transmission can experience reduced clutch apply force even if the pump itself remains capable of producing adequate pressure.

That can lead to:

Hydraulic leakage → delayed clutch application → clutch slip → excessive heat → accelerated transmission wear

This is why Next Gen Drivetrain considers the valve body one of the most important reliability upgrades available for the AS68RC.

Engineered In-House by Next Gen Drivetrain

The Project Carbon® AS68RC valve body is not simply a stock valve body that has been cleaned and reassembled.

It is extensively modified using components and hydraulic strategies developed by Next Gen Drivetrain’s in-house engineering department.

Our engineering process starts by identifying real-world AS68RC weaknesses involving:

  • Pressure loss

  • Hydraulic cross-leakage

  • Delayed clutch application

  • Harsh or inconsistent shifts

  • Bore wear

  • Accumulator leakage

  • Separator-plate sealing

  • Cooler-flow limitations

  • Case-piston wear

From there, we redesign specific components and circuits intended to improve how the transmission operates.

The goal is not:

“Make it shift harder.”

The goal is:

Improve hydraulic integrity, make clutch application more predictable, reduce unnecessary leakage, and increase transmission reliability without sacrificing drivability.

Precision Manufacturing Matters

Hydraulic transmission components operate with extremely small clearances.

That means manufacturing accuracy directly affects transmission performance.

Next Gen Drivetrain uses high-accuracy CNC manufacturing equipment, including Swiss-style CNC turning equipment, to produce critical valve-body components to tightly controlled dimensions.

Depending on the component and application, our manufacturing process includes:

  • CNC machining

  • Precision lathing

  • Surface stoning

  • Deburring

  • Cleaning

  • Dimensional inspection

  • Hydraulic inspection

  • Electronic verification

Valve-body mating surfaces are precision corrected where required to promote proper sealing and reduce unwanted fluid leakage between circuits.

Individually Tested Before Shipment

Quality control should happen before a customer installs the product.

Next Gen Drivetrain valve bodies undergo extensive inspection designed to evaluate areas such as:

  • Solenoid operation

  • Pressure-switch functionality

  • Valve movement

  • Hydraulic sealing

  • Internal leakage

  • Component fit

  • Assembly quality

Our objective is consistent, repeatable operation from one valve body to the next.

For installers, fleet operators, and vehicle owners, that means receiving a product that has been evaluated as a complete hydraulic assembly, not merely assembled from a parts list.

Crisper Shifts Without Unnecessary Harshness

A performance valve body does not need to make every gear change violent.

Excessively harsh shifting can create its own drivability and mechanical problems.

The Project Carbon® AS68RC valve body is engineered around:

Faster clutch application + controlled overlap + improved hydraulic sealing + predictable shift timing

The result is intended to provide:

  • Crisper shifts

  • Faster shifts

  • More consistent clutch handoffs

  • Improved transmission response

  • Reduced shift flare

  • More confident towing performance

  • Improved clutch holding capability

  • Better hot-operation consistency

For many customers, the result is a transmission that feels more decisive without sacrificing the refinement expected from a daily-driven truck.

Project Carbon® PulseDelete™ Technology

The AS68RC contains hydraulic pulse-dampening components designed to influence pressure behavior within the transmission.

Over time, these components and related circuits can become another potential source of hydraulic leakage or inconsistent operation.

Next Gen Drivetrain developed PulseDelete™ as an alternative strategy.

The Project Carbon® AS68RC valve body uses billet PulseDelete™ plugs and recalibrated hydraulic components to eliminate the original pulse-dampener arrangement and simplify the hydraulic system.

The objective is:

  • Reduced potential leak points

  • More predictable clutch application

  • Better hydraulic integrity

  • Increased long-term durability

Deletes All Three AS68RC Case Pistons

One of the most significant design changes incorporated into the Project Carbon® AS68RC valve body is the permanent deletion of all three case pistons.

Why does that matter?

Repeated hydraulic operation can wear the case areas associated with these components.

Once the case itself becomes worn, transmission repair can become substantially more expensive.

The Project Carbon® configuration is designed to eliminate reliance on these factory case-piston circuits, helping protect the transmission case from this type of wear.

For customers trying to keep older AS68RC-equipped trucks on the road for many more years, this can represent a particularly valuable preventative improvement.

AS68RC Billet Valve Body Build Specifications

The Project Carbon® AS68RC Valve Body includes:

  • Laser-Cut Steel Main Valve Body Separator Plate

  • Laser-Cut Steel Secondary Separator Plate

  • (2) Billet Trim Valve Sleeves

  • (2) Billet Trim Valves

  • (2) Long Billet PulseDelete™ Dampener Delete Plugs

  • (3) Short Billet PulseDelete™ Dampener Delete Plugs

  • Billet Lower Valve Body Half

  • Billet Filter Adapter

  • (8) OEM Pressure Switches

  • OEM Linear Solenoids

  • OEM Line Pressure Solenoid

  • Permanent Deletion of All Three Factory Case Pistons

  • Precision Correction of Valve Body Mating Surfaces Where Required

  • Limited Lifetime / Unlimited-Mileage Warranty

These components are designed to function together as an integrated hydraulic upgrade rather than as isolated modifications.

New OEM Electronics Where They Matter

Modern automatic transmissions depend on both hydraulic and electronic control.

That is why the Project Carbon® AS68RC valve body incorporates:

  • OEM linear solenoids

  • OEM line-pressure solenoid

  • Eight OEM pressure switches

Rather than attempting to save cost by relying on questionable or heavily worn electronics, Next Gen Drivetrain uses OEM components in critical electronic-control positions.

Our philosophy is straightforward:

Use proprietary engineering where the factory design can be improved. Use high-quality OEM components where factory electronics remain the correct solution.

Designed for Towing and Hotshot Use

The AS68RC is commonly found in trucks that work for a living.

Heavy towing increases:

  • Converter load

  • Clutch load

  • Hydraulic demand

  • Transmission temperature

  • Shift frequency

That makes hydraulic integrity especially important.

If internal leakage reduces clutch apply force while the truck is pulling a heavy trailer, the transmission has less margin available before clutch slip begins.

The Project Carbon® AS68RC valve body is therefore particularly well suited for:

  • Fifth-wheel towing

  • Equipment trailers

  • Hotshot applications

  • Commercial trucks

  • High-mileage work vehicles

A towing transmission does not simply need more line pressure.

It needs stable, well-controlled pressure with minimal unnecessary leakage.

Improved Cooler Flow

Heat is one of the biggest enemies of automatic transmission life.

The Project Carbon® AS68RC valve body incorporates hydraulic modifications intended to support consistent transmission oil control and cooler operation.

Better oil circulation can be especially valuable during:

  • Heavy towing

  • Mountain driving

  • Commercial service

  • High ambient temperatures

  • Repeated heavy-load operation

However, it is important to understand that no cooler-flow modification can repair already-damaged clutch packs.

The purpose is to support a healthy transmission and reduce unnecessary thermal stress—not disguise active mechanical failure.

Is This AS68RC Valve Body Good for a Stock Truck?

Yes.

You do not need a highly modified engine to benefit from better hydraulic control.

Stock trucks can accumulate:

  • Hundreds of thousands of shift cycles

  • High operating temperatures

  • Heavy towing mileage

  • Valve-body wear

  • Case wear

  • Accumulator leakage

For this reason, Next Gen Drivetrain considers the Project Carbon® valve body both a performance upgrade and a preventative reliability upgrade.

Is This AS68RC Valve Body Good for a Modified Truck?

Yes.

As engine torque increases, clutch holding requirements also increase.

Improved hydraulic integrity becomes more—not less—important when the transmission is asked to hold additional power.

However, a valve body alone does not make the rest of the transmission indestructible.

At higher power levels, clutch capacity, torque converter strength, hard parts, cooling, and complete transmission condition must also be considered.

The Project Carbon® valve body provides the hydraulic foundation on which those additional transmission upgrades can operate.

Should I Upgrade the AS68RC Valve Body Before the Transmission Fails?

In many cases, yes.

Preventative upgrades provide their greatest value while the transmission's internal clutch packs are still healthy.

Once friction material has already been burned:

A valve body cannot restore it.

The preferable sequence is:

Healthy transmission → improve hydraulic integrity → protect clutch operation

instead of:

Hydraulic leakage → clutch slip → heat → burned clutch → complete transmission repair

That is why Next Gen Drivetrain recommends addressing known hydraulic weaknesses before obvious mechanical failure whenever practical.

Limited Lifetime / Unlimited-Mileage No-Fault Warranty

Next Gen Drivetrain backs qualifying valve bodies with a Limited Lifetime / Unlimited-Mileage Warranty.

That means coverage does not simply disappear because you drive the truck frequently.

Whether the transmission is installed in:

  • A daily driver

  • A tow vehicle

  • A work truck

  • A commercial application

  • A high-mileage vehicle

there is no mileage ceiling under the published valve-body warranty.

What Does No-Fault Mean?

Our no-fault approach is designed to make the warranty process more customer-friendly.

Qualifying warranty claims receive inspection, and where covered service is required, Next Gen Drivetrain can repair or replace the valve body according to the applicable warranty terms.

The goal is to spend less time arguing about blame and more time determining what the product needs.

That customer-focused philosophy is possible because we have confidence in:

  • Our engineering

  • Our machining

  • Our assembly process

  • Our testing

Why Your Success Is Our Success

We don't view the sale as complete when the valve body leaves our facility.

A transmission component only succeeds if the truck operates properly after installation.

That is why Next Gen Drivetrain emphasizes:

  • Installation documentation

  • Technical support

  • Fitment assistance

  • Product-specific troubleshooting

  • Hydraulic knowledge

  • Ongoing warranty support

Our engineering department and technical team work from the same goal:

Build a product that solves the customer's transmission problem instead of creating another one.

That may sound obvious.

But in a transmission industry where small assembly, hydraulic, or compatibility errors can produce expensive failures, it matters enormously.

Fast & Easy Financing Available

Next Gen Drivetrain offers financing options designed to make premium transmission upgrades easier to purchase.

Available providers may include:

  • Affirm

  • Katapult

  • Shop Pay Installments

  • Other qualifying financing options

Eligible customers may qualify for promotional rates, including low- or 0%-APR options depending on provider terms.

Applications can typically be completed online from a phone or computer.

Frequently Asked Questions About the AS68RC Valve Body

What years does this AS68RC valve body fit?

The Project Carbon® valve body is designed for 2007.5–2012 Aisin Seiki AS68RC transmissions used in Ram and Sterling applications.

Does it work with every AS68RC pump?

Next Gen Drivetrain guarantees compatibility with all AS68RC pump configurations covered by this product.

Is this a rebuilt stock valve body?

No.

It is an extensively upgraded valve body incorporating billet components, PulseDelete™ technology, revised hydraulic circuits, OEM electronics, case-piston deletion, precision surface correction, and other modifications developed by Next Gen Drivetrain.

Will an upgraded valve body improve AS68RC shifting?

A properly functioning upgraded valve body can improve hydraulic consistency, clutch apply control, shift timing, and transmission response.

Actual results depend on the condition of the rest of the transmission.

Can it help with hard or delayed AS68RC shifts?

If those symptoms are being caused by valve-body leakage, hydraulic-control problems, accumulator issues, or related valve-body wear, upgrading the valve body may address the underlying problem.

Hard or delayed shifts can also have other causes, so proper diagnosis remains important.

Can a valve body fix a slipping AS68RC?

Only if the slipping is primarily the result of a hydraulic problem and the clutch packs remain mechanically healthy.

A valve body cannot restore friction material that has already been burned.

Is the Project Carbon® valve body good for towing?

Yes.

Towing is one of the primary applications for which improved hydraulic integrity, shift consistency, and cooler-flow control can be valuable.

Does this product require tuning?

Follow the product-specific installation guidance supplied by Next Gen Drivetrain and verify compatibility with any custom engine or transmission calibration already installed on the vehicle.

Why does Next Gen Drivetrain delete the case pistons?

The Project Carbon® design eliminates reliance on the original case-piston arrangement to reduce the potential for wear in those areas of the transmission case.

Does it include new solenoids?

Yes.

The published specification includes OEM linear solenoids, OEM line-pressure solenoid, and OEM pressure switches.

What warranty does the AS68RC valve body have?

Qualifying units are backed by Next Gen Drivetrain's Limited Lifetime / Unlimited-Mileage No-Fault Warranty, subject to the published warranty terms.

Why Choose the Next Gen Drivetrain Project Carbon® AS68RC Valve Body?

There is a major difference between rebuilding a valve body and re-engineering one.

A traditional rebuild may replace worn components and restore factory operation.

Next Gen Drivetrain asks a different question:

Which parts of the factory design can be improved so the same weaknesses are less likely to return?

That question led our in-house engineering department to develop:

  • Billet trim valves and sleeves

  • Billet PulseDelete™ components

  • Billet lower valve body

  • Billet filter adapter

  • Revised separator plates

  • Case-piston deletion

  • Precision sealing-surface correction

  • Upgraded hydraulic circuits

  • OEM solenoid and pressure-switch replacement

The result is a valve body designed around hydraulic integrity, towing durability, consistent shifts, and long-term reliability.

Upgrade the Hydraulic Foundation of Your AS68RC

If you are trying to improve the reliability of a 2007.5–2012 Ram or Sterling equipped with the Aisin AS68RC, the valve body is one of the most logical places to start.

The Project Carbon® AS68RC Valve Body combines:

In-house engineering

Extensive billet components

PulseDelete™ technology

Case-piston deletion

OEM electronics

Precision manufacturing

All-pump compatibility

Lifetime / unlimited-mile warranty

30-day used-product satisfaction guarantee

No-time-limit core returns

into one complete hydraulic upgrade.

We don't believe the best AS68RC valve body should simply be as good as the factory unit was when it was new.

We believe it should address the weaknesses that caused the factory unit to become a problem in the first place.

Improve hydraulic control. Improve shift consistency. Protect the transmission.

Upgrade to the Next Gen Drivetrain Project Carbon® AS68RC Billet Valve Body with PulseDelete™ today.