Wilwood Brake Bias Valve 260-12627
Suits: Nissan Skyline R32, R33, R34, Silvia S13, S14, S15, 180SX, 300ZX Z32 and other cars with M10 x 1 bubble-flare lines
Set your own front-to-rear brake balance. Wilwood’s knob-style bias valve with M10 x 1 bubble-flare ports to suit Nissan brake plumbing.
- Knob adjust, 150–1200 PSI range
- Cuts rear line pressure by up to 57%
- M10 x 1 bubble-flare inlet and outlet
- Forged billet body, clear anodised
$110.00 AUD
Requirements
Why fit a bias valve
Big brakes, a big-bore master cylinder or a light rear end can move your front-to-rear brake balance away from where you want it. This valve goes in the rear brake line and lets you dial rear pressure down with a knob, so you can set the balance to suit your car.
It’s Wilwood part 260-12627. Wilwood publishes the range as 150–1200 PSI, with a maximum reduction of 57%.
Will it fit my car?
The inlet and outlet are M10 x 1 bubble-flare seats. That thread is common on Nissan Skyline, Silvia, 180SX and 300ZX brake plumbing, so bubble-flare 10mm x 1 nuts go straight in without tube-nut adapters. It’s a universal inline valve, not a drop-in replacement for a factory part, and plumbing mods may be required.
Specifications
| Wilwood part number | 260-12627 |
|---|---|
| UPC | 889545067040 |
| Type | Adjustable proportioning (brake bias) valve |
| Adjustment | Fine-thread knob |
| Range | 150–1200 PSI |
| Maximum reduction | 57% (rear line pressure) |
| Ports | M10 x 1 bubble flare, inlet and outlet |
| Mounting | Two side holes, 1.00″ spacing |
| Overall height | 4.28″ (108.7mm) |
| Body width | 1.61″ (40.9mm) |
| Weight | 5.2 oz |
| Material | Aluminium / steel, clear anodised |
Fitting
Plumb the valve into the rear brake line using matching M10 x 1 bubble-flare nuts and mount it with the two side holes.
We recommend installation by a licensed mechanic.
What's Included
-
1× Wilwood 260-12627 adjustable proportioning valve
Customer Installs
Fits any car that meets the requirements
No vehicle list for this part. Check the requirements before ordering.
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.
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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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