FRAM PH3614 Cross Reference: Compatible Oil Filters Explained

The FRAM PH3614 is one of the more widely used spin-on oil filters in the FRAM lineup, and it shows up across a broad range of popular vehicles — which is exactly why so many people go looking for a cross reference. Whether the PH3614 is out of stock, you prefer a different brand, or you're simply comparing options, understanding how oil filter cross referencing works helps you make an informed swap without guessing.

What "Cross Reference" Means for Oil Filters

A cross reference is a compatibility match between two part numbers from different manufacturers — or sometimes different product lines within the same brand. When you cross reference the FRAM PH3614, you're looking for filters from other brands (or FRAM's own sub-lines) that share the same:

• Thread size and pitch — how the filter screws onto the engine block
• Gasket diameter — the rubber seal that prevents leaks at the mounting surface
• Bypass valve pressure rating — controls when unfiltered oil is allowed to bypass the filter media
• Anti-drainback valve — prevents oil from draining out of the filter when the engine is off
• Filter media efficiency and micron rating — how fine the filtration is

Two filters can look nearly identical and still differ in bypass valve pressure. That's why cross referencing from a reputable source matters more than eyeballing dimensions.

Common Cross References for the FRAM PH3614

The PH3614 is used on many four- and six-cylinder engines, particularly in Honda, Acura, Isuzu, and some older Saturn applications. Exact fitment depends on the engine year and displacement, so always verify against your specific vehicle before purchasing.

🔧 These cross references represent commonly cited equivalents, but part numbers change as manufacturers update their product lines. Always confirm fitment using the filter manufacturer's own application guide or an updated cross-reference database before installing.

FRAM's Own Product Line Cross References

FRAM itself makes several filter tiers, and the PH3614 sits in their Extra Guard line. If you want to stay within FRAM but upgrade the media, the equivalent filters in higher-tier lines include:

• FRAM Ultra Synthetic (XG3614) — extended-life synthetic media, rated for up to 20,000 miles with full-synthetic oil
• FRAM Tough Guard (TG3614) — a mid-tier option between Extra Guard and Ultra Synthetic
• FRAM Extended Guard (CH3614) — designed for extended drain intervals, not typical OCI swaps

The core thread, gasket, and bypass specs remain consistent across these FRAM families for the same fitment. The difference is in filter media construction and longevity — not in whether the filter physically fits.

What to Verify Before Using a Cross Reference

Cross reference charts are a starting point, not a guarantee. Before swapping in a different part number:

Check the thread size. The PH3614 uses a 3/4-16 UNF thread — standard across many Japanese-market and domestic four-cylinder engines. A cross-referenced filter should match this exactly.

Check the gasket OD. Even with matching threads, a gasket that's too small won't seal properly; one that's too large may not tighten correctly.

Match the bypass valve pressure to your engine's specs. Most passenger car engines operate within a fairly standard bypass range, but performance or turbocharged engines may have different requirements.

Look at height. Some engine bays have tight clearance. A filter that's longer than the original may contact brackets, hoses, or frame components.

Confirm anti-drainback valve presence. Engines with the filter mounted sideways or at an angle typically need a filter with an anti-drainback valve. The PH3614 includes one — your cross-referenced filter should as well.

Why Cross References Sometimes Don't Line Up Perfectly 🔍

Filter manufacturers don't simply copy each other — they engineer to their own tolerances and performance targets. A WIX 51394 and a FRAM PH3614 may both fit the same Honda 2.4L, but they may have slightly different:

• Burst pressure ratings
• Filtration efficiency percentages
• Media surface area
• Cold-start flow characteristics

These differences don't necessarily make one filter bad and another good — but they do mean that "cross reference" doesn't mean "identical." It means compatible for the same application, within the manufacturer's engineering choices.

The Variable That Cross Reference Charts Can't Cover

Cross reference databases are updated periodically, but they're not always in sync with mid-year manufacturer changes, revised part numbers, or regional packaging differences. The PH3614 has been through multiple production revisions over the years, and some older cross-reference lists still point to superseded numbers.

Your specific engine year, displacement, and build date — not just the vehicle model — can affect which filter number is the correct fit. A 2005 Honda Accord 2.4L and a 2009 Honda Accord 2.4L may share the same filter fitment or may not, depending on engine revisions made during that span.

What the cross reference gives you is a well-informed starting point. What it can't give you is confirmation that the filter in hand matches the exact spec your engine was designed around — that confirmation comes from verifying against your vehicle's service documentation or the filter manufacturer's current application guide.