Clutch Master Cylinder Assist Booster, OEM Replacement (30630-05U01)
Suits: R32, R33, R34 GTR & Stagea 260RS (RB26DETT
$399.00 AUD
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Requirements
Heavy clutch pedal on your RB26 GTR? Gone inconsistent, or lost assist entirely? The assist booster is usually the cause.
It sits behind the clutch master cylinder on RB26DETT GTR and Stagea 260RS models, and it commonly fails when the master cylinder weeps fluid into the diaphragm. Once it goes, the pedal turns heavy, vague, or drops assist altogether.
This is a direct OEM-spec replacement for Nissan part number 30630-05U01. It restores proper pedal assist and bolts into the factory location.
Suits: R32 GTR, R33 GTR, R34 GTR, Stagea 260RS (RB26DETT)
Fitment note: This booster does not come pre-adjusted. You’ll need to set the push rod length on install. If you’re using an HFM.PARTS external push rod adjusting tool, run it in the opposite direction to what’s printed on the tool.
- 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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Our compatibility list is based on OEM specifications. Variations may exist due to vehicle sub-models or other factors — verify fitment before purchasing.
Yes, but run it in the opposite direction to what's written on the tool.
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.
Modifying vehicles is a specialist task and requires the knowledge and experience of competent
individuals to
be conducted safely.
We recommend this product be installed by a competent person. Instructions are given with every
order
where
available, however, If you would like a copy prior to ordering, you're welcome to contact us
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