RE5R05A Valve Body 2008, used and ready to install. Fits the RE5R05A. Ships fast from the USA.
If you drive a 2008 Nissan Frontier, Pathfinder, Xterra, Titan or Armada, or a 2008 Infiniti QX56, and the five-speed automatic has started slamming into second, hanging in a gear, flaring on the upshift or throwing a solenoid code, this listing is aimed at you. It is a used, original-equipment RE5R05A valve body for 2008 applications, pictured complete with its solenoids and mounting bolts, and it carries a 1-year warranty. Buying a known-good used OEM assembly is often the most economical way to get a 2008 truck shifting correctly again without paying for a full rebuild.
The RE5R05A is a Jatco-built five-speed rear-drive automatic, and in a 2008 truck it has no mechanical shift logic of its own. The control module reads speed, throttle and temperature, then energizes the solenoids bolted to this valve body. Each solenoid controls a spool valve in the aluminum casting, and those valves send line pressure to the input, direct, high and reverse clutches, the low coast and reverse brakes and the front brake band. A worn bore lets pressure leak off before it reaches the clutch, and a sticking solenoid delivers the wrong pressure at the wrong time. The computer cannot see either fault directly, so you feel it as a bad shift long before a code may set.
By 2008 the low coast solenoid question that complicates earlier units is settled. Sonnax reports that Infiniti used a low-resistance 10-15 ohm low coast solenoid only until August 2005, and that every Nissan, plus every Infiniti built after that date, uses the 20-40 ohm high-resistance version. On a 2008 valve body, whether it came out of a Titan or a QX56, that solenoid should read 20-40 ohms. Bosch, Nachi and Mitsubishi all built it, and Sonnax notes the brands interchange as long as resistance matches.
Before you order, pull the dipstick and look at the fluid. Radiator cooler failure is one of the best-known RE5R05A problems, and the 2005-2010 Frontier, Pathfinder and Xterra are the trucks most often affected; Sonnax says roughly half the cores it sees show water intrusion. Pink, milky fluid means coolant got in, and a valve body swap will not cure that on its own. Transmission Digest describes an RE5R05A that kept shuddering after a cooler failure even after major parts were replaced. If the fluid is clean, record every stored code and note which shift feels wrong. Also keep in mind that Gears Magazine traced a harsh 1-2 on this transmission to worn sealing ring lands rather than the valve body. Our RE5R05A service and diagnosis guide walks through the fluid check, pressure testing and the common failure points.
This valve body is listed for 2008 RE5R05A applications. Sonnax identifies three valve body designs that should not be interchanged: two with dual neutral-to-reverse accumulators (one with an empty bore under the low coast solenoid, one with a reverse brake pressure control valve in that bore) and one with a single large accumulator. Some units also have an empty cooler bypass valve bore with the separator plate closed off above it. Compare the accumulators, casting numbers and connector on your old unit to our photos, or send us your year and VIN and we will confirm the match before it ships. If your truck falls outside 2008, see the 2004-12 RE5R05A valve body or browse the full RE5R05A parts collection.
Drain the fluid, drop the pan, unplug the harness and remove the valve body bolts, keeping track of their lengths. Clean the pan and magnet thoroughly; any metal or clutch material left behind will end up in the new assembly. Install a new filter and pan gasket with the job, such as our RE5R05A filter and gasket kit, torque the bolts evenly to spec and refill with Nissan Matic-S ATF. If you have reason to suspect a weak solenoid, the RE5R05A solenoid kit covers 2008. Clear codes and plan for a TCM relearn so shift timing adapts to the replacement valve body, and replace the radiator if the original cooler has never been changed.
| Fits | RE5R05A 2008 |
| Part type | Valve Body |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for 2008 RE5R05A applications, which include both. Because there are three non-interchangeable valve body designs, compare the accumulators and casting marks on your old unit to our photos, or send your VIN and we will confirm.
It is an original-equipment unit, removed and ready to install, and it carries a 1-year warranty. Install it with clean fluid, a new filter and a flushed cooler so it is not contaminated by debris from the old failure.
No. Infiniti only used the 10-15 ohm low coast solenoid until August 2005. A 2008 uses the same 20-40 ohm solenoid as the Nissan trucks.
Nissan Matic-S ATF. Do not substitute a generic Dexron fluid in this transmission.
If the original radiator is still in the truck, replacing it is strongly recommended. Coolant leaking into the ATF through a failed cooler is a leading cause of RE5R05A failure and will damage the replacement valve body.
