AIB2C Marine Oil Filter 35-866340K01 2-Pack — Short-Style Fit for Mercruiser & GM V8, High-Capacity Media

AIB2C 2-piece marine oil filter 35-866340K01 is a short, aftermarket replacement designed to fit Mercruiser inline 4- and 6-cylinder engines, Mercruiser GM V8 engines, and select V6/V8 remote-filter setups.

This pair of oil filters is built for marine duty and sized as a direct replacement for common Mercruiser and GM applications, including 4.5L and 6.2L Mercury engines. The filters use durable materials and a compact body to offer greater contaminant-holding capacity than many lightweight disposables while matching factory fitment for straightforward installation. They are sold as two units to keep a spare on hand for routine service intervals or multi-engine vessels.

Which engines and models will these filters fit?

These filters are compatible with Mercruiser in-line 4- and 6-cylinder engines and a wide range of GM-based Mercruiser V8 engines. They also fit Mercruiser V6 and V8 engines that use a remote-mounted oil filter, and they’re specified for some Mercury 4.5L and 6.2L powerplants. Confirm your engine part number or existing filter reference to ensure exact compatibility before ordering.

• Fits Mercruiser in-line 4- and 6-cylinder engines
• Compatible with Mercruiser GM V8 engines
• Works on V6 and V8 engines with remote oil filter housing
• Listed for Mercury 4.5L and 6.2L engines where applicable

How does the AIB2C aftermarket design compare to OEM filters?

This aftermarket replacement is manufactured to match the short-size profile of many OEM marine filters while using robust media and construction aimed at improving contaminant capacity. It is not branded OEM but is engineered to meet form, fit, and general function for direct replacement. As with any aftermarket part, verify gasket, thread size, and sealing dimensions for a trouble-free installation.

• Short-size body for tight engine compartments
• High-capacity filter media for extended service intervals
• Durable housing suited for marine environments
• Gasket and threads sized for direct replacement fit

What are the installation and maintenance considerations?

Installation follows standard oil-filter procedures: drain oil as recommended, apply a light film of oil to the replacement gasket, hand-tighten according to torque or turn specs, and check for leaks after startup. Keep an eye on service intervals and replace the filter during every scheduled oil change or per your engine manufacturer’s guidance. Because these are sold in a two-pack, you can swap the second unit into inventory or service a second engine without delay.

• Apply oil to gasket before fitting to ensure proper seal
• Hand-tighten then follow manufacturer torque guidelines
• Inspect for leaks after engine start and warm-up
• Replace with each oil change or per engine manual

Will this filter work for remote oil filter housings?

Yes — this replacement is listed for Mercruiser V6 and V8 engines that use remote-mounted filter housings, provided the housing accepts the short-size element and thread pattern. Remote-mounted systems often require the same filter dimensions as on-block setups, so double-check the housing fit and sealing surfaces before purchase. If in doubt, compare the new filter to the removed unit to confirm match.

• Compatible with many remote-mounted Mercruiser housings
• Verify housing thread and gasket interface before install
• Compare physical dimensions to the removed filter to confirm fit

Who is this for: This AIB2C 2-pack is aimed at boat owners, marine technicians, and fleet operators who need a reliable, compact oil filter replacement for Mercruiser and compatible GM-based marine engines. It’s useful for vessels with limited engine-room access where a short-profile filter is required, and for anyone who prefers to keep a spare on board or service multiple engines with one purchase.