Clutch Master Assist Booster for GTR & 260RS
Suits: Nissan Skyline R32 GTR, R33 GTR, R34 GTR, Stagea C34 260RS (RB26DETT)
Bring back a light, consistent clutch pedal. A direct replacement for the factory clutch assist booster on the RB26 GTR and Stagea 260RS.
- Direct replacement for Nissan 30630-05U01
- Bolts into the factory location, no modifications
- Restores clutch pedal assist
- Push rod length is set on install
$399.00 AUD
Requirements
Why replace it
A heavy, vague or inconsistent clutch pedal on an RB26 GTR is usually the assist booster. It sits behind the clutch master cylinder, and it commonly fails when the master weeps fluid into the booster diaphragm. Once it goes, the pedal turns heavy or loses assist altogether.
This is a direct OEM-spec replacement for Nissan part 30630-05U01. It bolts into the factory location and restores proper pedal assist.
Booster or master cylinder?
Pull the vacuum hose off the booster. If there’s brake fluid inside, the master cylinder is leaking into the booster. Replace both together, or the new booster will end up the same way.
Specifications
| Replaces | Nissan 30630-05U01 |
|---|---|
| Location | Behind the clutch master cylinder |
| Fitment | Direct OEM replacement, no modifications required |
| Push rod | Not pre-adjusted, set the length on install |
| Suits | Nissan Skyline R32 GTR, R33 GTR, R34 GTR, Stagea C34 260RS (RB26DETT) |
Fitting
The booster doesn’t come pre-adjusted, so set the push rod length before it goes back in the car. If you’re using an HFM external push rod adjusting tool, run it in the opposite direction to what’s printed on the tool.
Once the booster and master cylinder are fitted and connected, bleed the clutch through the slave cylinder as normal.
We recommend installation by a licensed mechanic.
Pairs with
- Geomet® Coated Clutch Master Cylinder for GTR & 260RS. Replace the master at the same time if it has leaked into the booster.
- 13/16″ Big Bore Pull-Type Clutch Slave Cylinder. Suits R32 GTR (Feb 1993 on), R33 GTR and R34 GTR.
- 13/16″ Big Bore Push-Type Clutch Slave Cylinder. Suits R32 GTR built before Feb 1993.
- Brake Booster Push Rod Adjusting Tool (external). Makes setting the push rod length quicker.
- Direct OEM-spec replacement for Nissan 30630-05U01
- Restores factory clutch pedal feel and assist
What's Included
-
1× Clutch master cylinder assist booster
Customer Installs
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Will it fit your car?
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Our Story
We weren't always HFM.Parts; we were Holford Motors. Our brand's identity was forged not in an office, but on the local circuits in the high-stress world of competitive drifting. Our ultimate testbed was our Nissan S14 Drift car, driven by champion Luke Fink. Pushing that car to its limits exposed a crucial truth: achieving genuine, repeatable performance meant relying on components that simply weren't available affordably on the market.
The HFM.Parts brand was born
We made the commitment to design and manufacture the uncompromising, high-quality performance parts that we, as competitive racers, demanded ourselves. Every component you see is a solution conceived, tested, and proven by us. When you choose HFM.Parts, you are investing in components engineered by racers, for racers, ensuring your vehicle delivers its maximum performance potential.
Pairs with
Parts other customers fitted with this one, filtered to the same vehicles.
-
Geomet® Coated Clutch Master Cylinder for GTR
Suits: Nissan Skyline R32 GTR, R33 GTR, R34 GTR, Stagea C34 260RS (RB26DETT)
$139.00 AUD -
Magnetic Sump Plug M12 x 1.25 / M14 x 1.5
Suits: Nissan, Toyota, Honda and any engine sump, gearbox or diff with an M12 x 1.25mm or M14 x 1.5mm drain thread
$15.95 AUD
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We recommend this product be installed by a competent person. Instructions are given with every
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