Full Flow Spin On Oil Filter, Short

OVERVIEW

Protecting your air-cooled investment requires more than just a standard mesh screen that was designed in the 1930s. This Short Full Flow Spin-On Oil Filter is a critical upgrade for any Volkswagen enthusiast who has converted their engine to a full-flow oiling system or is running a performance Type 4 powerplant. In the world of air-cooled engines, heat is the enemy, but contaminated oil is the silent killer. By utilizing this high-quality spin-on filter, you are ensuring that microscopic debris, metal shavings, and combustion byproducts are trapped before they can reach your expensive main bearings or lifter bores. The "short" profile of this specific filter is a lifter-saver for tight engine bays, specifically when running aftermarket merged headers or tucked exhaust systems where a standard length filter would simply interfere with the chassis or heat exchangers.

Every feature of this filter has been selected to meet the demanding oil pressure spikes of a cold VW engine. Featuring a robust 3/4-16 thread, it integrates seamlessly with the most popular full-flow pump covers and remote filter mounts available at Appletree Auto. The internal anti-drainback valve is a vital component for horizontally opposed engines, as it prevents oil from draining back into the sump when the engine is off, ensuring near-instantaneous oil pressure upon startup. Furthermore, the 8-11 PSI bypass valve provides an essential safety margin; if the filter media ever becomes completely restricted or the oil is too thick during a freezing morning start, the valve will open to maintain oil flow to the gallery, preventing catastrophic oil starvation. Don''t let a cramped engine bay compromise your engine''s longevitythis short-canister design offers the filtration of a full-size unit in a compact, high-strength package.

FITMENT

• VW Type 1 Beetle: All years equipped with full-flow oil pump covers or remote filter mounts.
• VW Type 2 Bus / Transporter: 1950-1979 models with full-flow conversions or aftermarket oil coolers.
• VW Type 3 Fastback, Squareback, Notchback: All years with full-flow oiling modifications.
• VW Type 4 / Vanagon: 1700cc, 1800cc, and 2000cc engines requiring a 3/4-16 thread filter.
• VW Karmann Ghia: All years with full-flow oiling systems.
• VW Thing (Type 181): All years with full-flow oiling modifications.
• Sand Rails & Dune Buggies: Ideal for custom builds where ground clearance or frame interference is a concern.

SPECS

• Thread Size: 3/4-16 (Industry standard for VW full-flow systems).
• Micron Rating: ~21 Microns (Nominal) for superior particulate capture.
• Profile: Short Canister design for maximum clearance in tight spaces.
• Anti-Drainback Valve: Included (Prevents dry starts).
• Bypass Valve Setting: ~8-11 PSI (Safety bypass for cold starts/restriction).
• Housing Material: High-gauge steel to resist road debris impact.
• Gasket Type: High-temp nitrile rubber for a leak-free seal.
• Replaces Part Number: 17-2922-0.

PRO TIPS

Pro Tip 1: Pre-Lubricate and Hand Tighten. Before installation, always smear a thin film of clean engine oil onto the rubber gasket of the new filter. This prevents the gasket from "bunching" or tearing as you tighten it, which is the leading cause of oil leaks at the filter mount. When installing, tighten the filter until the gasket makes contact with the mounting base, then give it an additional 3/4 turn by hand. Never use a filter wrench to tighten the filter, as over-tightening can crush the gasket or make it nearly impossible to remove during your next oil change.

Pro Tip 2: Account for Exhaust Heat Radiation. Because this short filter is often used in applications where the exhaust is very close to the oiling system, pay close attention to the distance between the filter canister and your header pipes. Even though the short design helps with clearance, extreme radiant heat can cook the oil inside the filter or degrade the internal valves. If your filter is within two inches of an exhaust pipe, we strongly recommend using a thermal heat wrap on the exhaust or a clip-on heat shield for the filter to keep your oil temperatures within the optimal operating range.

Pro Tip 3: The "Dry Start" Prevention Method. When performing an oil change on a full-flow VW engine, it is a best practice to "pre-fill" the filter with fresh oil before spinning it onto the mount. Since the filter is mounted horizontally or at an angle in most VW applications, you may not be able to fill it to the brim, but getting it at least half-full significantly reduces the time it takes for the oil pump to prime the system. This ensures that your rod and main bearings aren''t running metal-on-metal for those first few critical seconds after you fire the engine back up.