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4L70E Valve Body 2006-2013 - Aftermarket

$199.00
In stock • ships from the USA • qualifies for FREE shipping

4L70E valve body for 2006-2013, remanufactured and ready to install. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
Secure Stripe checkout
Ships from the USA
30-day returns

About this product

A 2006-2013 Silverado, Tahoe, Sierra, or Yukon on the 4L70E that flares on the 1-2 shift, shudders when the torque converter locks, or slips and loses 3rd and 4th gear is almost always telling you the valve body has worn past where fluid pressure can be held correctly. This is an aftermarket, remanufactured 4L70E valve body built for 2006-2013 applications, rebuilt with updated valves in the circuits that wear fastest and bench-verified before it ships.

What the valve body does in a 4L70E

The valve body is the hydraulic brain of the transmission. It meters pump pressure through the pressure regulator and boost valve, feeds the shift solenoids and pressure control solenoid through the actuator feed limit (AFL) circuit, and applies the torque converter clutch through the TCC regulator and isolator valves. As those precision bores wear from fluid flow over years of use, pressure leaks past the valves instead of holding where it should, and the computer can no longer control shift timing or TCC apply the way it was designed to.

Symptoms this aftermarket valve body addresses

Our 4L70E valve body symptoms and testing guide covers which worn bore produces which symptom, and the 3-4 clutch failure guide explains how low valve body pressure keeps burning that clutch pack even after a fresh rebuild.

How to confirm it before you buy

Check fluid condition and pull codes before ordering. Clean fluid with a stored P0741 or pressure-control code points at the valve body; burnt, dark fluid means the clutches themselves may already be damaged and need attention beyond a valve body swap, which our 4L70E common problems guide covers in more detail. A vacuum or hydraulic bench test is the standard way a shop confirms bore wear before replacing the assembly.

Fitment: 2006-2013 4L70E

This valve body is built for the 2006-2013 4L70E casting and connector layout used across that span of Silverado, Sierra, Tahoe, Yukon, and related GM trucks and SUVs. Earlier 4L70E castings, including the 2003-2008 and 2003-2009 revisions, use a different bore and connector arrangement and will not drop in correctly. Match your old unit's casting number and connector count, or send your year, vehicle, and VIN and we will confirm fitment before it ships. Every 4L70E valve body by year is on the 4L70E parts page.

Install notes

Drop the pan, unplug the internal wiring harness and manual valve link, and lower the valve body straight down so the check balls stay in their bores instead of falling loose. Replace the filter and pan gasket at the same time you install it, torque the bolts in GM's specified sequence, and refill with Dexron VI ATF. This is an electronically controlled unit, so let the computer run its adaptive relearn over the first several drives, or reset adapts with a scan tool right away. If the shift feel is still not sharp after relearn, a shift kit firms up the remaining apply feel, and a worn TCC solenoid from the same generation is worth replacing alongside it if the converter clutch was shuddering.


Specifications

Transmission4L70E
Year Range2006-2013
ConditionRemanufactured / updated
ShippingShips from the USA

Complete the job: parts that go with this

Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

4L70E Shift Kit 1993
4L70E Shift Kit 1993
$72.99

4L70E Valve Body 2006-2013 - Aftermarket: common questions

Is this an OEM or aftermarket valve body?

Aftermarket. It is remanufactured with updated valves in the wear-prone circuits and bench-verified, built as a direct-fit replacement rather than a genuine GM core rebuild.

Does it fit every 4L70E from 2006 to 2013?

It covers that casting and connector layout, but match your old unit's casting number before ordering, or send us your year, vehicle, and VIN and we will confirm fitment first.

My torque converter clutch shudders - will this fix it?

Usually, if the shudder traces back to TCC regulator or isolator bore wear in the valve body, which is a common cause and often shows a stored P0741 code. Confirm with a code scan before ordering.

What should I replace alongside this valve body?

A new filter and pan gasket at minimum. If shift feel is still soft after the relearn period, a shift kit helps, and a worn TCC solenoid is worth swapping if converter shudder was part of the complaint.

Do I need to reflash or tune the computer after installing it?

No. The computer relearns shift adapts automatically over the first several drives, or you can reset adapts sooner with a scan tool.

How is this different from the 2003-2008 or 2003-2009 versions you sell?

Those earlier castings use a different bore and connector layout for the pre-2006 4L70E. This listing is matched specifically to the 2006-2013 casting revision, so it will not interchange with the earlier units.


Repair guides for this job

Sources
  1. Sonnax — Uncovering the Root Cause of Pressure Complaints: Solenoid Modulator & AFL Valves. Backs how AFL bore wear starves the EPC and shift solenoids, producing 2nd-gear starts, harsh shifts, no 4th, and solenoid or ratio codes. www.sonnax.com/tech_resources/1208-uncovering-the-root-cause-of-pressure-complaints-the-critical-role-of-solenoid-modulator-afl-valves
  2. Sonnax — Understanding 4L60-E Series Isolator Bore Wear and How to Address It. Backs TCC regulator and isolator bore wear exhausting apply pressure, producing P1870, burnt 3-4 clutch, and overheated converter complaints. www.sonnax.com/tech_resources/1440-understanding-4l60-e-series-isolator-bore-wear-how-to-address-it
  3. Sonnax — All Over the Map: Attacking 4L60-E Burnt 3-4 Clutches With Confidence. Backs low line pressure from valve body wear as a root cause of repeat 3-4 clutch failures. www.sonnax.com/tech_resources/659-all-over-the-map-attacking-4l60-e-burnt-3-4-clutches-with-confidence
  4. General Motors — 2008 Chevrolet TrailBlazer Owner Manual, Recommended Fluids and Lubricants. Backs the Dexron VI automatic transmission fluid requirement on 4L70E applications. experience.gm.com/ownercenter/content/dam/gmownercenter/gmna/dynamic/manuals/2008/chevrolet/trailblazer/2008_chevrolet_trailblazer_owners.pdf

4L70E Valve Body 2006-2013 - Aftermarket

$199.00
In stock • ships from the USA • FREE shipping • 30-day returns

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