The radiator on a 2001 Honda Accord has two configurations based on engine type, with the V6 version including an integrated transmission fluid cooler.
The 2.3L four-cylinder and 3.0L V6 use different cooling setups — the V6 runs hotter and includes an integrated ATF cooler, while the L4 uses a simpler unit. Matching the right radiator to your engine is critical for a proper swap.
What Sets The 2001 Accord Radiator Apart By Engine Type
The radiator is a direct-fit all-aluminum unit varying by engine. The V6 version includes an ATF cooler loop and holds 7.5 quarts of coolant (automatic), while the L4 holds 7.0 quarts (manual) or 6.9 quarts (automatic). Both use a single-row core with aluminum tanks.
| Specification | 2.3L L4 | 3.0L V6 |
|---|---|---|
| Coolant Capacity (Manual) | 7.0 qt | N/A |
| Coolant Capacity (Automatic) | 6.9 qt | 7.5 qt |
| Integrated ATF Cooler | No | Yes |
| Core Thickness | 5/8 in | 5/8 in |
| Rows | 1 | 1 |
| Construction | All-aluminum | All-aluminum |
| OEM Part Number | — | 74140S87A00 |
2001 Honda Accord Radiator Replacement: What You’ll Pay
An aftermarket radiator runs $100–$120, while a genuine Honda unit costs $200–$250. A full DIY job — radiator, thermostat ($8–$18), hoses, and coolant — totals roughly $300. Professional installation adds about $200 in labor, totaling around $450. Our best radiator picks help avoid compatibility issues. Per Honda’s OEM parts catalog, the job requires basic tools and about two hours.
How Do You Replace The Radiator In A 2001 Honda Accord?
The procedure is the same for L4 and V6 engines, with extra steps for the V6. You’ll need a 10 mm socket, channel lock pliers, and your owner’s manual for fluid capacities.
- Ensure engine is cold before opening the cooling system.
- Drain coolant from the petcock at the bottom of the radiator.
- Remove upper and lower radiator hoses. On V6 models, disconnect ATF cooler hoses — have a container ready for transmission fluid.
- Disconnect fan motor connectors and remove the two 10 mm bolts securing the upper brackets.
- Pull the radiator straight up and out of the lower rubber cushions.
- Transfer fan shroud assemblies, rubber isolators, and brackets to the new radiator.
- Install new radiator in reverse order, seating cushions securely.
- Fill with coolant and bleed: start engine for 30 seconds, turn off, refill to base of filler neck. Repeat until level stabilizes.
- For V6: Verify ATF lines are tight and check transmission fluid level.
Common mistakes to avoid: Failing to bleed air is the number one cause of overheating after a swap. Ensure hose clamps sit in original positions and clean the overflow reservoir while open.
FAQs
Do I need to replace the thermostat when changing the radiator?
Strongly recommended. A thermostat costs $8–$18 and sits where you’re already working, saving future work if the old one fails.
How much transmission fluid will I lose on a V6 model?
About a quart drains when disconnecting ATF cooler hoses. Check and top off transmission fluid after installation.
What type of coolant does a 2001 Honda Accord use?
Honda Type 2 or phosphate-free, silicate-free compatible coolant. Wrong coolant can corrode aluminum. Check your owner’s manual for exact capacity.
References & Sources
- Honda OEM Parts Online. “Radiator and Components — 2001 Honda Accord LX 3.0L V6.” Lists OEM part numbers and exploded diagrams.
- Honda News Canada. “2001 Accord Coupe Specifications.” Factory specifications for engine and cooling system.
- AutoZone. “2001 Honda Accord Radiator.” Aftermarket pricing and fitment information.