K&N Motorcycle Oil Filter KN-174B for Harley‑Davidson V‑Rod — High-Flow, 17mm Wrench-Off Nut

The K&N KN-174B motorcycle oil filter is a heavy-duty, high-flow replacement designed to protect V‑Rod and select Harley‑Davidson engines while working with synthetic or conventional oils.

This premium K&N oil filter combines a synthetic-blend filtration media with a reinforced steel canister and an integrated 17mm welded hex (wrench-off) nut for fast, reliable service. Built to handle the high flow demands of modern motorcycles, the KN-174B is compatible with a wide range of oils — including full synthetics and racing blends — and is laboratory-tested for capacity and burst strength. It’s engineered to meet or exceed manufacturers’ recommended service intervals and backed by a 1‑Year Limited Warranty.

How does this filter improve oil flow and engine protection?

The KN-174B is engineered for high flow rates while still trapping contaminants that can accelerate engine wear. Its synthetic-blend media balances filtration efficiency with low restriction, helping maintain consistent oil delivery at varied engine speeds.

• High-flow media reduces pressure drop for steady oil circulation.
• Synthetic-blend fibers capture harmful particles without choking flow.
• Laboratory-tested capacity and burst strength for reliable performance.

Will the KN-174B work with my oil type and service schedule?

This filter is formulated to be compatible with conventional, blended, and fully synthetic oils — including high-concentration racing synthetics often used in performance motorcycles. It’s built to withstand the longer drain intervals recommended by many manufacturers when using quality oils, though you should always follow your motorcycle’s service manual.

• Compatible with petroleum-based and synthetic motor oils.
• Designed to handle extended service intervals when proper oil is used.
• Check your owner’s manual for OEM-recommended change intervals.

What makes installation and removal easier for home mechanics?

The welded 17mm hex nut on the KN-174B gives a straightforward point for a wrench or socket, eliminating the need for specialized filter pliers and speeding up maintenance. The robust canister and standardized thread make hand-tightening and torque application simple and repeatable.

• 17mm welded hex nut allows quick wrench-off removal and installation.
• Durable steel canister resists deformation during service.
• Standardized dimensions fit specified Harley V‑Rod models for direct replacement.

Which motorcycles does this filter fit and how reliable is it?

The KN-174B is manufactured to match the fitment and filtration needs of select Harley‑Davidson V‑Rod models and special editions. K&N tests each filter for burst strength and contaminant capacity to ensure consistent performance under normal operating conditions.

• Fits select Harley V‑Rod models (2002–2017), including Night Rod, Street Rod, Muscle, and limited editions.
• Extensively tested for capacity and burst strength in labs.
• Protected by K&N’s 1‑Year Limited Warranty for manufacturing defects.

Who is this for? The K&N KN-174B is aimed at riders and technicians who want a durable, high-flow replacement oil filter for Harley V‑Rod family motorcycles — especially those using synthetic or performance oils and who value faster serviceability. It’s a practical upgrade for anyone seeking dependable filtration, easier wrench-off maintenance, and a filter built to withstand the demands of spirited riding and extended drain intervals when paired with the right oil.