PFA DB4 5 Way Brass Brake Union
£36.50
Product Info
PFA DB4 5 Way Brass Brake Union
Aston Martin DB4 5-Way Brass Brake Union
Safeguard the hydraulic integrity of your classic grand tourer using the PFA DB4 5-Way Brass Brake Union. We precision-manufacture this component as an exact OE-type replacement, featuring the correct thread pitches and internal sealing faces required to accept your vehicle’s hydraulic brake light switch.
Product Overview
Many early DB4 models originally featured an aluminum 5-way union block. Over decades of service and maintenance, these original aluminum blocks frequently suffer from stripped or compromised threads upon disassembly, presenting a serious safety hazard. Therefore, upgrading to our robust brass replacement guarantees a reliable, secure, and permanent solution.
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Vehicle Compatibility: Purpose-built for single-circuit classic Aston Martin DB4 models.
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Safety Advantage: Eliminates the risks associated with fatigued, stripped, or cracked original aluminum unions.
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Quantity: This listing is for a single item (sold individually).
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Quality: High-grade brass construction offering exceptional durability, corrosion resistance, and secure thread engagement under high hydraulic pressures.
Technical Specifications
| Attribute | Detail |
| Part Type | 5-Way Brake Union / Distributor Block |
| Material | High-Grade Brass |
| Original Part Number | 20-33-156 |
| Our Part Number | PFA-20-33-156-R |
| Package Quantity | 1 (Individual) |
Parts Book Reference Guide
You can easily cross-reference this component in your official Aston Martin parts catalogue:
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Model: Aston Martin DB4 (Single Circuit)
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Parts Catalogue Section: Plate Q
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Page: 60
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Item Number: 70
Why Choose Our Brass Brake Union?
Maintaining a leak-free, high-pressure braking system is non-negotiable when restoring a classic Aston Martin. While original aluminum fittings often degrade or strip during routine overhauls, our precision-machined brass union ensures safe, tight connections for all five brake lines and the pressure switch. Consequently, you gain peace of mind and authentic fitment during your restoration.
Need assistance with your brake system overhaul? We specialize in supplying authentic and precision-engineered components for classic Aston Martin models. If you need help verifying your application or cross-referencing parts for your restoration, please contact our team for expert guidance.
Parts For Astons is an independent business dedicated to providing high-quality parts primarily for Aston Martin vehicles. Our expertise stems from years of passion and experience with Aston Martins from restoration and race preparation (and everything inbetween), ensuring every part we offer meets the exacting standards of these iconic vehicles.
We manufacture our own parts using our own designs which are developed in-house and rigorously tested before going to market. This enables us to manage our own quality control to ensure you receive a part which is 100% fit for purpose. If we do not have a part in stock, we can manufacture it quickly.
Closely associated with Goldsmith And Young, you can trust in our commitment to quality and personalised service for your restoration or performance needs. Should you have any questions, please do not hesitate to reach out and ask.
Additional information
| OEM | 20-33-156 |
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