Wilbers Fork Spring - Zero friction - Progressive

Wilbers Fork Spring - Zero friction - Progressive

Marsoni

M251S

$148.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Wilbers Fork Spring - Zero friction - ProgressiveWilbers progressive fork springs ZERO Friction finishing Our vibratory finishing process (trough vibrator with tailored media) micro polishes the spring surface. The resulting fine, shiny finish reduces surface roughness and friction hence ZERO Friction. Pair with our specially formulated Wilbers fork oil and the specified air chamber for your vehicle to maximize performance. Product may differ from the picture. Recommended viscosity and air chamber:

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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This is a great filter upgrade to your cabin filter. This is better than the Subi standard part. Fits my Subaru outback. NOTE: Subi marks their filter with an 'up' arrow; however, this filter is marked with a 'airflow' direction. Direction of air flow is toward the blower motor so it will point downward when you install it.

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Reviewed in the United States on April 25, 2026

Verified Purchase

Jerry

Birmingham, US

★★★★★ 5

Much cheaper than letting dealership do the job

Size: 9.7" x 9.3" x 1.8"

Filter fits well in works well

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Reviewed in the United States on May 8, 2026

Verified Purchase