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Vacuum Booster

Chevrolet / GMC / Isuzu

Brand-new — never remanufactured · 12-month warranty · 60-day DOA

DualDiaphragm
55Vehicle applications
2004–2008Years covered

OE numbers

8890402850

Cardone

54-71911 cross-reference only — order by a number you know
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Every order is checked before you pay

Will this fit my vehicle?

Choose your vehicle, then check fitment. We confirm the match by VIN or OE before any quote — never automatically.

About this part

Vacuum Booster for Chevrolet / GMC / Isuzu. A vacuum booster multiplies pedal force using engine vacuum for lighter, more consistent braking — a failing one usually shows up as a hard pedal and longer stops. Brand-new unit — not a remanufactured core. OE and Cardone numbers are used only as a cross-reference, so you can order by a number you already know.

VACTIRO confirms fitment by VIN or OE before any quote is issued. No payment is requested until availability, price and return terms are confirmed.

At a glance

Product lineVacuum Booster
Years covered2004–2008
Vehicle applications55
Photo statusPhoto pending

This part covers 55 vehicle applications, cross-referenced from the OE / Cardone catalogs. A specific vehicle is confirmed by VIN or OE before any quote.

OE numbers

8890402850

Cardone

54-71911

Interchange

B1192
Diaphragm
Dual
Master cylinder stud thread
M8x1.25
Mounting bracket
Not included

Further dimensional and material data available on request via the Trade RFQ flow.

VACTIRO does not currently publish third-party certifications on this site.Certifications, test reports and material certs will appear here as they are reviewed and approved for publication. Engineering documentation available on request.
Every unit carries a 12-month limited warranty (manufacturing defects, replacement or credit) plus a 60-day DOA replacement window.Final ordering and shipping terms are confirmed on the quote / PI before any paid order is accepted; carrier details will be published alongside legal entity registration.

For distributors, e-commerce resellers, repair-shop chains or container-volume buyers — submit a Trade RFQ for MOQ, packaging and lead-time terms.

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