Gates Engine Coolant Bypass Hose P/N:21784
Keep coolant moving through your engine's cooling circuit with the Gates Molded Coolant Bypass / Heater Hose (P/N 19042). This factory-molded, OEM-style hose is a direct-fit replacement shaped for today's smaller, tighter-fitting engine compartments, and it drops in on the 1997-2000 Honda Civic and 1997-1998 Acura EL — see the Buyer's Guide tab for the full engine-level fitment. It's cataloged under both names, so you may see it listed as a coolant bypass hose or a molded heater hose.
Gates recommends replacing the hose clamps each time a new coolant hose is installed. Caution: do not use for fuel or oil transfer applications.
Interchange: 14161S · F10807 · 64134 · 19508P2J000 · CH4257 · 11042
This part cross-references / interchanges with the following part numbers:
What vehicles does the Gates 19042 hose fit?
It's a direct-fit replacement for the 1997-2000 Honda Civic and 1997-1998 Acura EL. Check the Buyer's Guide tab to confirm the exact engine-level fitment for your vehicle.
What is this hose made of?
It has an EPDM tube, synthetic fiber knit reinforcement, and an EPDM cover. It's a factory-molded, OEM-style design shaped for tight, modern engine compartments.
What temperature and specs does it meet?
It meets SAE 20R3 Type EC Class D-1 and D-2 specifications and is rated for a temperature range of -40°F to 275°F (-40°C to 135°C).
Can I use this hose for fuel or oil lines?
No. Gates cautions against using it for fuel or oil transfer applications. It's designed for coolant, water and air applications, and is also approved for marine use.
Should I replace the clamps when installing it?
Yes. Gates recommends replacing the hose clamps each time a new coolant hose is installed to help ensure a secure, leak-free connection.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.