Parts for your 2007 Nissan Pathfinder-Cluth slave cylinder

2007 Nissan Pathfinder clutch slave cylinder (R51)

Referencing Nissan’s R51 Pathfinder Factory Service Manual (CL – Clutch section) and Nissan parts catalogues used in AU/NZ dealerships, the 2007 Pathfinder equipped with the 6‑speed manual gearbox (commonly behind the YD25DDTi diesel) uses a hydraulic concentric clutch slave cylinder (CSC) integrated with the release bearing inside the bellhousing. Automatic transmission models don’t have or need a clutch slave cylinder, so the cluth-slave-cylinder is only relevant to manual variants.

On a manual 2007 Pathfinder, the clutch slave cylinder’s job is to convert pedal pressure (via the clutch master cylinder) into movement at the release bearing, disengaging the clutch smoothly. Because it’s a concentric, internal design, it sits around the gearbox input shaft, keeping pedal feel consistent and engagement neat. Being inside the bellhousing also means fewer external moving bits, but when it leaks, the gearbox has to come out to replace it.

Servicing-wise, there’s no fixed replacement interval for the CSC, but brake/clutch hydraulic fluid should be flushed every 2 years or 40,000 km (check the local maintenance schedule). Fresh DOT 3 or DOT 4 fluid (as specified in the service manual) helps keep seals healthy. During routine servicing, a quick look at the clutch fluid reservoir for dark, contaminated fluid and a check around the bellhousing for any dampness can catch issues early.

• Common symptoms of a tired CSC: soft or sinking clutch pedal, difficulty selecting gears, clutch slip without obvious disc wear, dropping fluid level, or fluid weeping from the bellhousing.
• Best practice during a clutch job: replace the CSC at the same time as the clutch kit and pilot/spigot bearing, and inspect the master cylinder and flexible hose. The labour overlap is significant, so bundling parts avoids repeat gearbox removal.
• Bleeding tips: use a pressure or vacuum bleeder and follow the FSM sequence. Keep the reservoir topped to prevent air ingress. Avoid “over-stroking” the pedal with the line open, which can damage seals.

Workshops familiar with R51 Pathfinders and D40 Navaras will recognise that an internal CSC is a known wear item. Quality parts, correct fluid, careful bleeding, and replacing the CSC whenever the gearbox is out are the smart moves for long-term reliability. For auto Pathfinders, none of this applies, as there’s no clutch hydraulics fitted.

Note: Terms and component layout above are based on Nissan R51 Factory Service Manual documentation and AU/NZ dealer parts catalog references for 2007 model-year manual vehicles.

Popular questions about the 2007 Nissan Pathfinder cluth-slave-cylinder

Does every 2007 Pathfinder have a clutch slave cylinder?
Only the manual-transmission Pathfinders do. The 6‑speed manual uses an internal concentric slave cylinder, the 5‑speed automatics don’t have a clutch or slave cylinder at all. If the vehicle is auto, the cluth-slave-cylinder isn’t applicable.

Can the clutch slave cylinder be replaced without removing the gearbox?
No. On the R51 manual, the CSC is inside the bellhousing around the input shaft. The gearbox must be removed to access it. That’s why it’s recommended to replace the CSC whenever the clutch kit is being done, to save on duplicated labour.

What fluid should be used for the clutch hydraulics?
Nissan specifies brake fluid for the clutch circuit—typically DOT 3 or DOT 4, depending on the market documentation. Using the grade specified in the service manual and flushing it regularly helps extend the life of the master and slave cylinders.