The Precision Y Hose Connector 9399 001 is a robust Y-style hose fitting designed to split or join three hose runs cleanly and securely. Built for use with common automotive and equipment hoses, it streamlines repairs and modifications of coolant, vacuum, and auxiliary lines (verify hose ID before installation). The connector offers corrosion-resistant construction, reliable sealing under typical system pressures, and a simple push-and-clamp installation that makes line restoration and maintenance fast and repeatable.
Features:
- Universal fit for common automotive and equipment hoses — verify hose inner diameter before installation.
- Corrosion-resistant construction for long-lasting performance in engine bays and under-hood environments.
- Y-style design allows secure splitting or joining of three hose runs without kinking or flow restriction.
- Simple push-fit installation with hose clamps for quick repairs and maintenance.
- Ideal for restoration projects and routine line repairs to restore proper routing and function.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 10-20 minutes
Instructions:
- Confirm connector size matches the inner diameter (ID) of the hoses to be joined.
- Drain or depressurize the system if working with coolant, fuel, or pressurized vacuum lines and wear appropriate PPE.
- Remove old or damaged hose sections and clean the cut ends so they are square and free of debris.
- Slide hose clamps onto each hose end before inserting the connector.
- Apply a small amount of lubricant to the connector barbs to ease insertion, then fully insert each hose onto the connector until it seats against the fitting shoulder.
- Position the hose clamps over the barb area and tighten evenly until snug; avoid overtightening—screw clamps typically require a firm hand or a quarter turn past snug.
- Re-pressurize or refill the system as required and inspect for leaks while under normal operating pressure/temperature.
- If any leaks are detected, re-tighten clamps or re-seat hoses; replace clamps or hoses if damage is found.
About Precision Replacement Parts
Since 1986 Precision Replacement Parts has been a trusted name in the Automotive Glass Industry.
Our knowledge and experience in manufacturing millions of extruded and molded EPDM Rubber, PVC and HDPE based plastics, and various stamped and extruded metal products for the classic and late model industries has allowed Precision to expand our services into multiple product markets.
Along with our own USA based production facility, Precision also partners with 25 different manufactures worldwide with a reputation as a global leader supplying OEM and replacement products to a number of different industries. Our partnerships along with our own in-house manufacturing and fabrication capability gives Precision a unique position in helping to meet the expanding needs of customers everywhere, providing them with a sustained competitive advantage.
