Skip to product information
SKU:
NLT1K01018
Ships for free in 2–4 business days.
1996-2000 Honda Civic Coolant Overflow Reservoir Tank HO3014121
$28.99
In Stock
$28.99
Sale price
$28.99
Regular price
This new aftermarket coolant overflow reservoir replaces HO3014121 and 19101-P2A-000 for compatible 1996-2000 Honda Civic models.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Honda Civic CX, DX, EX, GX, HX, LX, Si and Value Package (1996-2000; verify body and engine)
- Honda Civic coupe, sedan and hatchback applications using HO3014121
Product Overview
A cracked or stained coolant bottle can leak slowly, leave the reservoir empty, or make it hard to judge the cooling-system level. Once the radiator, cap, hoses, and engine are checked for other leaks, replacing the damaged recovery tank gives coolant a sealed place to expand and return.
This tank is made for the listed sixth-generation Civic applications. Compare the hose nipple, cap opening, mounting tabs, bottle shape, and original number before ordering; a reservoir will not correct overheating caused by a bad radiator cap, thermostat, fan, head gasket, or circulation problem.
Key Features & Performance
- Restores the coolant recovery and level-check point
- Molded replacement for a cracked, yellowed, or missing bottle
- Application-shaped mounting tabs and hose connection
- New aftermarket alternative to an aging original tank
Replaces Part Numbers
- HO3014121
- 19101-P2A-000
- 603-803
Common Uses
- Stopping coolant loss from a split reservoir seam
- Replacing a cloudy bottle that hides the coolant level
- Completing front-end or cooling-system repair after impact
Technical Specifications
- Product Type: Coolant overflow / recovery reservoir
- Vehicle Position: Engine compartment
- Cap: Included as shown
- Condition: New aftermarket replacement
Installation & Fitment
- Work only on a fully cooled engine
- Compare mounting tabs and hose nipple to the removed tank
- Inspect the cap, overflow hose, radiator, and nearby brackets
- Fill and bleed the cooling system to the vehicle procedure
- Recheck for leaks and stable coolant level after a heat cycle
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Can a cracked reservoir cause coolant loss? A: Yes. It can leak during expansion or pull air back into the system as the engine cools.
Q: Will a new tank fix an overheating Civic? A: Only if the damaged tank is the cause. Diagnose the radiator, cap, thermostat, fans, pump, and engine before relying on the reservoir alone.
Q: Does this fit every 1996-2000 Civic? A: Use the listed years as a starting point, then compare HO3014121, bottle shape, hose location, and mounting tabs.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 1996-2000 Honda Civic coolant reservoir, HO3014121 overflow tank replacement, 19101-P2A-000 coolant bottle, Civic coolant recovery tank, Honda Civic leaking reservoir
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.