ARO 115959 Zinc Spacer for 1/2 in. Metallic and Non-Metallic Pumps

ARO 115959 Zinc Spacer for Diaphragm Pump Service

The ARO 115959 is a replacement spacer used in compatible ARO air-operated diaphragm pumps. Applied Industrial identifies this component as a Zinc Spacer, Item 120, for compatible 1/2-inch metallic and 1/2-inch non-metallic pumps. :chatgpt-content-reference{index="0"}

This part is intended for pump maintenance and repair where the original spacer is worn, damaged or missing. Using the correct spacer helps maintain the intended positioning and assembly of related pump components.

Genuine ARO Replacement Spacer

ARO distributors identify part number 115959 as a genuine ARO replacement spacer. Aroplus also lists 115959 specifically as an ARO “Spacer.” :chatgpt-content-reference{index="1"}

For 1/2 Inch Metallic and Non-Metallic Pumps

The 115959 spacer is documented for compatible ARO 1/2-inch metallic and non-metallic diaphragm pumps. Published compatibility lists include selected models from the 66605 and 6661 series, along with certain PD05 configurations. :chatgpt-content-reference{index="2"}

Because ARO uses this spacer across multiple pump models, always verify the complete pump model before ordering.

Item 120 in Pump Parts Documentation

Applied Industrial identifies the 115959 spacer as Item 120. This makes it easier to match the component to an exploded parts diagram or service manual during maintenance. :chatgpt-content-reference{index="3"}

Zinc Spacer Construction

Published ARO distributor data identifies the 115959 as a zinc spacer. This component is used as internal pump hardware and should be replaced with the correct part number rather than a generic spacer of similar size. :chatgpt-content-reference{index="4"}

Compatible Pump Examples

Published compatibility information includes models such as:

• 66605J-322
• 66605J-344
• 66605J-388
• 666101-2EB-C
• 666102-2EB-C
• 666150-3EB-C
• 6661AJ-3EB-C
• PD05P-ASS-STT

This is not necessarily a complete compatibility list. Confirm your exact ARO pump model before installation. :chatgpt-content-reference{index="5"}

Service and Maintenance Guidance

During pump service, inspect adjacent hardware and sealing components for wear, deformation or corrosion. Replacing only the spacer may not resolve the issue if surrounding components are also damaged.

Use the pump service manual and exploded parts diagram to confirm the correct installation position and orientation.

Ordering ARO 115959

Order using the complete manufacturer part number ARO 115959. Verify the pump model, parts diagram reference and required quantity before purchase.

The 115959 is a spacer component, not a complete repair kit or complete air valve assembly.