Alloy Bung and Weld-On Filler Neck Cap for Fuel Surge Tank, Oil, Water, Radiator

Main Description

Upgrade your engine bay with the Alloy Bung and Weld-On Filler Neck Cap for Fuel Surge Tank, Oil, Water, Radiator. Crafted from high‑quality billet aluminum, this cap kit delivers durable performance, precise fitment, and a polished, professional appearance that complements any build. Designed to replace or upgrade OEM filler neck caps, it’s compatible with threaded fill necks on coolant reservoirs and other tanks, making it a versatile choice for performance cars, restorations, and custom installations.

Featuring a scalloped design and a clear anodized finish, these caps not only look purpose-built but also resist heat, fluids, and corrosion for lasting reliability in demanding conditions. The natural cap finish keeps a classic, understated look that blends with most engine bays while delivering a secure seal and easy, reliable operation. Sizes available ensure a universal fit for a range of tanks: 1.5" (38mm), 2" (50.8mm), and 2.5" (63.5mm).

Each order is a complete cap kit, machined from billet aluminum for strength and longevity. The kit is designed for straightforward installation by professionals and enthusiasts alike, offering a dependable upgrade path for fuel surge systems, oil tanks, water reservoirs, and radiators. Always double-check your fill neck size before ordering to ensure a perfect match with DRC01/02/03 variants.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Trusted by customers since 2002, intercyprus.com continues to deliver quality automotive parts with reliability you can count on.

Benefits & Tips

• Ideal for custom fuel surge tank installations, oil, water, and radiator applications, offering a secure seal and a clean, professional look.
• Choose the right size by measuring the fill neck diameter; if between sizes, select the larger cap to ensure compatibility and smooth threading.
• Maintain engine bay aesthetics: the natural aluminum cap with a clear anodized finish provides both shine and durability in high-heat environments.

Product Specifications

• Brand: PQY
• Model: DRC01/02/03
• Material: Aluminum (billet)
• Finish: Cap Finish – Natural; Surface – polished; Clear anodized for shine and durability
• Cap Sizes: 1.5" / 38mm, 2" / 50.8mm, 2.5" / 63.5mm
• Fitment: Universal fitment designed for OEM coolant tanks with threaded fill neck
• Includes: 1x Oil Cap Kit (brand new)
• Origin: Mainland China
• Quality: 100% quality assurance tested

Package Includes

• 1x Oil Cap Kit (100% Brand New, Never Used or Installed)

Warnings / Reminders

• No installation guides are included; professional installation is highly recommended.
• Any damage during installation will not be refunded.
• Please ensure the picture matches your item and allow for minor color or measurement variations due to display differences.
• Provide tracking number with every order and verify correct fill neck size before purchase.

Language support: Not specified. If available, please refer to the product listing for supported languages.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Since 2002, intercyprus.com has earned trust for quality and reliability in automotive parts.