Assenmacher Tools Funnels

Vehicle-Specific Funnels Engineered for a Cleaner Oil Change

When it comes to oil changes on modern vehicles, a generic funnel often doesn't cut it. Tight engine bays, oddly angled filler necks, and valve covers designed with no room to spare can turn a routine service task into a messy ordeal. That's precisely the problem that Assenmacher Specialty Tools (AST) set out to solve with their line of vehicle-specific automotive funnels — and they've been refining these solutions since the company's founding in 1978.

A Brand Built Around Problem-Solving

Assenmacher was founded in 1978 in Boulder, Colorado by Gerhard Assenmacher , and as a leader in the automotive specialty tools industry, the company is dedicated to providing complete customer satisfaction, developing and manufacturing an extensive range of best-in-class specialty tools. That same engineering mindset extends directly to their funnel lineup — each product is conceived to address a real-world challenge faced by professional technicians and dedicated enthusiasts.

Threaded, No-Spill Designs for Every Major Platform

What sets Assenmacher funnels apart from off-the-shelf alternatives is their vehicle-specific, locking attachment system. A hallmark of the brand's funnel design is the ability to connect directly to the opening of a valve cover, freeing both hands — one to pour oil and one that no longer has to hold the funnel in place. This hands-free approach dramatically reduces the risk of spills and makes solo oil changes far more manageable.

Assenmacher's custom motor oil funnels make oil changes quicker and eliminate the possibility that oil will spill out of the side and make a mess. The lineup covers an impressive range of applications:

• Toyota Threaded Oil Funnel (OFTOY1038): A threaded oil funnel designed specifically for Toyota vehicles , engineered to lock securely into the filler neck for a spill-free pour.
• Euro Oil Filler Funnel (OFAUD1000): Designed to attach to the valve covers of VW/Audi, BMW, Dodge Sprinter 2.7L, and Mercedes engines.
• BMW & Mercedes Engine Oil Funnel Set (FUN2MBWKIT): A 3-piece specialized engine oil funnel set featuring a threaded connection that securely fastens to the oil filler, with various sizes to accommodate a broad range of BMW and Mercedes engine configurations.
• GM Angled Funnel Extension (OFAAGM): Specifically designed to facilitate fluid service on General Motors vehicles, this extension provides professional technicians with the necessary reach and precise control to access challenging and often obstructed filler necks, ensuring clean and efficient fluid transfers while minimizing spillage.
• 6-Piece Custom Oil Funnel Set (FUN14KIT): This set includes a funnel and five adapters, fitting over a hundred models — including Acura, Ford, Jaguar, Land Rover, Mazda, and Honda — making it an ideal choice for multi-make shops.

Built for Professional Shops, Trusted by Enthusiasts

Assenmacher manufactures and distributes a full line of specialty tools, cooling system adapters, oil change products, cam alignment tools, and disconnect tools for Asian, domestic, and European vehicles. Their funnel range reflects that same broad coverage philosophy — rather than forcing a one-size-fits-all solution, AST engineers each funnel or funnel kit to match the geometry of specific filler necks and valve covers. The result is a cleaner, faster, and more professional oil service every time.

Whether you're servicing European luxury brands or domestic trucks, browse the full selection of automotive funnels and explore everything else in the Assenmacher Specialty Tools catalog to find the right tool for your application.