RE5R05A
Valve Body Replacement Cost

The RE5R05A (Jatco's JR507E) is a five-speed longitudinal automatic that Nissan hung behind the VQ40, VQ35, VK56 and QR25 in just about every rear-drive vehicle they built from roughly 2002 through 2015. It is a durable box in one specific sense — the hard parts, planetaries and shafts hold up fine — and a fragile box in another. The control side of it, meaning the valve body, the solenoids, and the fluid that keeps both alive, is what fails, and it fails predictably at 110,000 to 180,000 miles on trucks that never got a fluid service.

Here is the number most people are looking for: a RE5R05A valve body job runs $650 to $1,900 out the door at a shop, and $300 to $950 if you do it yourself. That is a wide band because the job splits into three very different repairs depending on what is actually wrong, and the diagnosis you get up front decides which one you pay for.

Symptoms of a Failing RE5R05A Valve Body

This transmission does not usually die quietly. It gives you a sequence, and the sequence matters because the earlier you catch it, the cheaper it stays.

Early — you have months, not weeks

• Delayed engagement when cold. Two to five seconds between selecting Drive or Reverse and feeling the truck load up. Warm, it engages normally. This is line pressure bleeding down through a worn bore or a lazy pressure control solenoid.
• Torque converter shudder at 40–55 mph. Light throttle, slight uphill, feels like driving over rumble strips for a second or two. On the RE5R05A this is usually the lockup control circuit, not the converter itself.
• Bump on the 1–2 upshift when the engine is cold that smooths out after five minutes of driving.

Mid — the repair is still a valve body repair

• Hard, banging 2–3 or 3–4 upshift at any temperature, particularly under light throttle where it should be softest.
• Flare between gears. RPM jumps 300–600 during a shift before the next gear takes hold. That is a clutch element releasing before the next one applies — a timing problem born in the valve body.
• No 5th gear, or 5th that comes and goes. The truck cruises at 2,600 rpm at 65 mph instead of the usual 1,900–2,100.
• AT / check engine light, often with the overdrive-off indicator flashing on trucks so equipped.

Late — you are now gambling on the whole transmission

• Fail-safe (limp) mode. The TCM drops you into a single fixed gear, usually third, with no upshift or downshift. Cycling the key sometimes restores normal operation for a few miles, which is the classic RE5R05A tell.
• Slipping under load — engine revs climb but road speed does not. Once you are slipping, the clutch material is already in the fluid, and that material is what killed the solenoids.
• Reverse that takes five seconds or never shows up at all.

The codes that come with this are worth knowing before you walk into a shop: pressure control and line pressure solenoid faults, shift solenoid A and B faults, torque converter clutch circuit faults, front brake and low-coast brake solenoid faults, and gear ratio codes in the P0731–P0735 family. A single solenoid code on an otherwise clean transmission is a very different repair than four codes plus a ratio code. See our RE5R05A limp mode fix guide for the code-by-code breakdown.

Drop the Pan Before You Buy Anything

This is the twenty-dollar step that decides whether you are about to spend $700 or $4,000, and most people skip it.

Pull the pan, cut the filter open, and look at what is in there. Then decide:

• Clean fluid, no debris, maybe a light gray film on the magnet. Normal. Fix the valve body or the solenoid and you are done. This transmission has a long life left.
• Black fluid that smells burnt, fine clutch dust suspended in it. The clutches are cooking. A valve body will restore shift quality but it is a stopgap — you are buying 20,000 to 40,000 miles, not a permanent fix.
• Metal flake, bronze-colored particles, or chunks you can pick up with a fingernail. Stop. The pump or a bearing is failing. A valve body will not fix this and the debris will destroy the new one. This is a rebuild or a replacement unit conversation.

Also do a line pressure test if the shop is equipped for it. The RE5R05A has a pressure port on the case. Low line pressure at idle in Drive with a clean pan usually points at valve body bore wear rather than a solenoid.

Solenoid vs Full Valve Body — How to Choose

The RE5R05A valve body carries a stack of solenoids: line pressure control, torque converter clutch, shift solenoids A and B, the front brake solenoid, the low-coast brake solenoid, and the direct clutch solenoid. They are individually serviceable. That is good news for your wallet, and it is also the trap — people replace one solenoid, the symptom moves to a different gear two months later, and they end up buying the valve body anyway plus a second round of labor.

The failure mode that pushes most RE5R05A units past the single-solenoid stage is bore wear in the aluminum valve body casting. The pressure regulator and the lockup control circuits are the usual suspects. Aluminum bores wear oval, the valve leaks past itself, pressure control gets sloppy, and no amount of new solenoids fixes it. Aftermarket rebuilders sell oversized valve kits that machine the bore and install a larger valve — if your builder mentions those, that is a good sign they actually know this unit.

Browse RE5R05A solenoids

OEM vs Remanufactured vs Used Pricing

Nissan catalogs the complete control valve assembly under a 31705-series part number and the individual solenoids under 31940-series numbers. The suffix changes by year, engine, 2WD versus 4WD, and in some cases by build date, so do not order off a forum post — give the counter your VIN. Several of the early assemblies have been discontinued outright, which is why reman has become the default on 2004–2010 units.

Budget another $60–$120 on top for the pan gasket, filter, and the fluid you are going to lose. Do not reuse the filter.

Shop Labor Hours and What Gets in the Way

The good news about a longitudinal, rear-drive transmission is that the pan faces straight down and the valve body is right there once it is off. Nobody is pulling a subframe. Realistic book time lands at 3.0 to 4.5 hours for a valve body swap, plus diagnostic time.

At $120–$180 per hour, that is $400 to $800 in labor, with dealers in high-cost metros pushing past $900. Add half an hour to an hour if the shop has to fight any of the following:

• Exhaust and crossmember clearance on 4WD Titan, Armada and Pathfinder. The pan often will not clear the crossmember without loosening the transmission mount and letting the tail drop an inch. Rusty crossmember bolts turn a four-hour job into a six-hour job.
• The shift linkage and manual valve. On reassembly the manual valve has to seat onto the detent lever pin. Get it wrong and the truck will not select gears at all. This is the single most common re-do on this job.
• Bolt length sorting. The RE5R05A valve body uses bolts of several different lengths. A long bolt in a short hole cracks the casting. Lay them out on cardboard in the pattern you pulled them.
• Adaptive relearn. Nissan's TCM holds learned shift pressures. After a valve body it should be cleared with a factory-capable scan tool, then driven through a relearn cycle. Skipping this is why some trucks shift worse right after a good repair.

Realistic Total Cost Ranges

The judgment call: once a shop quote crosses roughly $2,000 on a truck with over 160,000 miles and dark fluid, you are paying rebuild money for a control-side repair on a transmission that is going to need the rebuild anyway. At that point, price a remanufactured unit against the valve body and make the decision on total cost of ownership, not on the invoice in front of you.

DIY Difficulty — Honest Assessment

Call it a 6 out of 10. It is not a rebuild. There is no special tooling beyond a torque wrench that reads accurately in the 7–10 ft-lb range, and no clearances to set. What makes people fail at it is carelessness, not skill.

The things that bite:

• Check balls and springs. When you separate the valve body halves, small check balls fall out and nobody notices. If you are installing a complete assembled valve body you never open it — that is the whole argument for buying the assembly rather than rebuilding yours on a workbench the first time.
• Torque values are low. Valve body bolts land in the single digits to low teens in ft-lb. A 3/8 ratchet and a firm wrist will strip the aluminum. Use an inch-pound torque wrench.
• Fluid handling. You will lose 4–6 quarts dropping the pan and you will not get it all out of the converter. Plan on refilling, driving it to temperature, and rechecking.
• Fluid level procedure. The RE5R05A is sensitive to level. Check it hot, in Park, on level ground, after cycling through every gear position. Overfilling causes aeration, which causes exactly the harsh shifting you just paid to fix.
• Fluid spec. Nissan specifies its own Matic-series ATF for this unit — Matic-J on most applications, with later builds and current service fills calling for Matic-S. Verify against your owner's manual or the dealer parts counter for your specific year. Do not substitute a generic Dexron-type fluid. The friction modifier package is different and you will feel it in the lockup clutch within a week.

Budget a full Saturday. If your truck is a rust-belt vehicle, budget a full Saturday and a can of penetrating oil applied the night before.

Check Nissan Matic-S ATF pricing
Fluid transfer pumps

How to Not Do This Again

Every RE5R05A valve body we have seen fail early failed for the same reason: heat and old fluid. Nissan's severe-service language covers most of how these trucks actually get used — towing, short trips, hot climates, or dusty conditions.

• Drain and fill every 30,000 to 40,000 miles. Not a flush. A pan drop and filter every other service.
• Add a cooler if you tow anything. The factory in-radiator cooler on these trucks is marginal with a trailer behind you. See our writeups on the best transmission cooler for the Nissan Titan and the Nissan Frontier.
• Fix the shudder when it is still a shudder. A lockup clutch that chatters is shedding friction material into the fluid, and that material is what plugs the solenoid screens.
• Do not tow in overdrive. Fifth on this box is a deep overdrive with a lot of converter slip behind it if you are loaded. Use tow/haul or lock out 5th on grades.

FAQ

Can I just replace one solenoid instead of the whole valve body?

Yes, if you have a single code, a clean pan, and a service history. The solenoids on the RE5R05A are individually replaceable with the pan down. If you have multiple codes or shift complaints with no codes, a single solenoid is a coin flip you will probably lose.

Will a valve body fix slipping?

No. Slipping means clutch material is gone. A valve body restores correct pressure and shift timing to clutches that are still capable of holding. It cannot restore clutches that are worn out.

Do I need to reprogram anything after installing a valve body?

The valve body itself is not a programmed component, but the TCM's learned shift adapts should be cleared and relearned. Most independent shops with a capable scan tool can do this. Without it, expect a few hundred miles of odd shift quality while it re-adapts on its own.

How long does a remanufactured RE5R05A valve body last?

On a transmission with clean fluid and no debris, a properly rebuilt valve body should last the life of the unit. On a transmission that is already shedding clutch material, expect 20,000 to 40,000 miles before the same symptoms come back, because the root cause was never the valve body.

Is this the same repair on a 350Z as on a Titan?

Same transmission family and same valve body concept, different calibration and different part number, and the 350Z is a tighter job under the car. Parts pricing is comparable; labor is usually a half hour longer.