Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509
Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 is a premium aftermarket brake booster priced at $67.69. Built to OEM specs, it ensures reliable, one-to-one fitment and easy installation for classic C4 Corvette restorations or brake system upgrades.
● In stock
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Key features
- Fits 1985–1991 Chevrolet Corvette 5.7L models
- Matches OEM part 178-509 and multiple OE numbers
- Dual hand-inspection before shipment
- Direct bolt-on installation, no modifications
- Engineered to original factory specifications
- Premium aftermarket build for long-term reliability
- VIN-based fitment verification available
Pros
- +Exact OEM-spec replacement
- +Affordable at $67.69
- +Easy to install for DIYers
- +High reliability and consistent performance
- +Supports VIN-based compatibility check
Cons
- −Does not include mounting gasket
- −California Proposition 65 warning applies
About Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509
What is Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509?
This direct-fit power brake booster replaces OE part 178-509 and is engineered for 1985–1991 Chevrolet Corvette models equipped with the 5.7L V8 engine. Designed as a high-quality aftermarket solution, it restores optimal brake assist performance, ensuring shorter stopping distances and reduced pedal effort. Built to match original factory specifications, this unit is ideal for maintaining the safety and driving dynamics of the iconic C4 Corvette.
Key features
- Precision Fit — Matches OEM dimensions and mounting configuration for 1985–1991 Corvettes.
- Hand-Inspected Quality — Each unit undergoes dual inspection before packaging and shipment.
- OEM-Spec Engineering — Designed to meet original factory performance and reliability standards.
- Easy Installation — Direct bolt-on replacement with no modifications required.
- Premium Aftermarket Build — Offers stable operation and long-term durability under real-world conditions.
- Multiple OE Cross-References — Compatible with part numbers 54-71401, 25-114401-1, PB9013, and more.
- VIN-Based Fitment Support — Seller provides VIN verification to ensure correct compatibility.
Who is Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 for?
This brake booster is tailored for C4 Corvette owners restoring, maintaining, or upgrading their vehicle’s braking system. It’s ideal for DIY mechanics with intermediate skills and professionals seeking a reliable, cost-effective alternative to dealership parts. Enthusiasts prioritizing OEM-level performance and fitment will benefit most.
How does Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 compare?
Compared to standard aftermarket brake boosters, this unit stands out with hand-inspected quality control and strict adherence to factory specs. It offers better reliability than budget-tier options and matches the form and function of OEM without the dealer price tag. While it doesn’t include a gasket, its precise fitment and compatibility with multiple OE numbers make it a smarter choice than generic or untested alternatives.
Best use cases
- →Restoring a C4 Corvette brake system
- →Replacing a failed or leaking brake booster
- →Upgrading from a worn original unit
- →OEM-spec repair without dealer pricing
- →DIY brake system maintenance
Is Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 right for you?
This brake booster is best for C4 Corvette owners performing brake repairs or restorations. Suitable for DIYers with basic mechanical skills, it installs with common tools. Confirm fitment using the OE number or VIN. Consider pairing with a new gasket. A cost-effective alternative to OEM from dealers.
How it compares: Outperforms budget brake boosters in fit and durability while matching OEM function at a lower price. More reliable than generic units lacking quality inspections or precise engineering.
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$7.91Frequently Asked Questions
What vehicles does this brake booster fit?
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This unit fits 1985–1991 Chevrolet Corvette models with the 5.7L V8 engine. It replaces OE part 178-509 and cross-references several aftermarket numbers. For absolute certainty, provide your VIN to the seller for verification.
Does this brake booster come with a gasket?
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No, this power brake booster does not include a gasket. You may need to purchase a compatible gasket separately to ensure a proper seal during installation.
How is the quality ensured?
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Each unit is hand-inspected twice—once after production and again before shipment. This ensures defect-free units that meet OEM specifications for fit, function, and reliability.
Is this an OEM or aftermarket part?
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This is a premium aftermarket part designed to meet original factory specifications. It offers OEM-equivalent performance and fitment at a more competitive price point.
Can I use this for non-Corvette GM vehicles?
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This booster is specifically calibrated for the 1985–1991 Corvette. While some GM platforms share components, fitment is not guaranteed. Always verify using the OE number or VIN.
How much does Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 cost?
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Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 is $67.69 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 in stock at Lab Work Auto?
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Yes, Replacement for 1985-1991 Chevrolet Corvette 5.7L Power Brake Booster 178-509 is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-010155