Russell Performance 661603 NPT Pipe Bushing Reducer Adapter Fitting

The Russell Performance 661603 is an NPT pipe bushing reducer adapter fitting designed to connect fluid lines of different pipe thread sizes in performance plumbing applications. Built from lightweight 6061-T6 aluminum, this straight reducer bushing is precision machined to ensure accurate thread engagement and a reliable, leak-free seal at maximum operating pressures.

Part of Russell's extensive adapter fitting lineup, this bushing reducer is compatible with fuel systems, oil systems, and other fluid transfer applications common in automotive, racing, and marine builds. The fitting is designed to mate seamlessly with Russell AN hose ends and hardlines, making it an ideal solution when adapting between mismatched NPT port sizes.

Key Features:

• Material: Precision machined 6061-T6 aluminum
• Thread Style: NPT (National Pipe Taper) male to female
• Fitting Style: Straight bushing reducer
• Finish: Anodized (see product variant for specific finish)
• Sealing: Tapered NPT threads provide a positive seal under pressure
• Compatibility: Designed to match all Russell hose ends and hardline components
• Application: Universal — fuel, oil, coolant, and other fluid systems
• Sold: Individually (each)

Russell Performance adapter fittings are available in standard thread, metric thread, and pipe thread configurations to fit most popular oil pumps, fuel pumps, fuel filters, and a variety of other common components. Finish options across the product line include ultra-bright Endura, blue anodized, and black anodized.

California Prop 65 Warning: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.