Harbor Radiator

Costa Mesa, United States

5

Open now

10 reviews

Contacts

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Telephone:
+1 949-645-4810
Website:
harbor-radiator.com
Address:
2129 Harbor Blvd, Costa Mesa, CA, 92627
Nearby public transportation stops & stations:
1.9 mi173
2 mi35
2.3 miOCTA
Categories:
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Today

Today 8:00 am – 5:00 pm
Open now
Local time (Costa Mesa) 1:52 PM Friday, June 20, 2025

Business hours

Monday 8:00 am – 5:00 pm
Tuesday 8:00 am – 5:00 pm
Wednesday 8:00 am – 5:00 pm
Thursday 8:00 am – 5:00 pm
Friday 8:00 am – 5:00 pm
Saturday –
Sunday –

Description

Specialties

Harbor Radiator specializes in Radiator Repairs, Factory Radiator Replacement, Custom Built Radiators, Heavy Duty Radiators, Marine Heat Exchangers, Industrial Cooling and Radiators, Air Conditioning Service, Heater Service, Gas Tank Repair, Fuel Tank Repairs, and all other Automobile Cooling System Services.

Radiators

All makes/​models/​years

Repair

Recores

Completes

Custom built

Cooling System Maintenance

All USA made cores by Craig Manufacturing Co.

Custom Built Radiators for:

Hot Rods

Street Rods

Model T

Model A

Classic cars

Heavy Duty Radiators for:

Trucks

SUV’s

Marine Heat Exchangers

Engine coolers

Transmission coolers

Gear coolers

Intercoolers/​Aftercoolers

Overhauling and reconditioning

Sales

MACS Certified

Air Conditioning and Heater Services:

Service and repair

Evacuate and recharge

Compressors

Evaporators

Condensers

Receivers dryers

Expansion valves

Heater Cores

History

Established in 1972.

Harbor Radiator has been serving Orange County’s Automotive, Marine, and Industrial Cooling Systems since 1972.

Meet the Business Owner

Gregg O.

Business Owner

Gregg O has been repairing and rebuilding radiators for over 40 years. Years of know how and experience has helped make Harbor Radiator the best place to take a leak in Orange County!

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Vicinity

Browse nearby places:
100
ft
Hendersons Car Audio & Alarm
2137 Harbor Blvd
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Castle Tile
2121 Harbor Blvd
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Harbor Motor Sports
2119 Harbor Blvd
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The Salvation Army
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10 reviews of Harbor Radiator

No registration required
Place rating: 5
Laguna Beach, CA
This is business run the way it should be — immaculate attention to the customers needs and EXCELLENT care given.
Place rating: 5
Costa Mesa, CA
I brought my E320 in today to fix my radiator. Had them flush out a heat exchanger in the past on my J105 but this was first time with a car repair. Work was done super fast and at a very reasonable price. These are good folks who know their business.
Place rating: 5
Costa Mesa, CA
So refreshing to visit an auto repair place without pretense. These are great techs who do dirty work, professionally and without fuss.
Place rating: 5
Costa Mesa, CA
Stand up guys right here! I took my 1997 Toyota 4-​Runner in for AC repair. They did an excellent job for an excellent price. It’s never worked better! My husband has taken multiple cars here (his, his mothers, fathers etc.) for radiator repair and they always do an wonderful job. Gregg is the best! Harbor Radiator has honest mechanics that know their stuff! I recommend this place to all my friends.
Place rating: 5
Newport Beach, CA
These guys are exactly the type of people I want do business with. Dan gave me a quote over the phone for my 1999 Jeep Grand Cherokee, brought my car in shortly thereafter, and they had it done w/​in 3.5 hrs. Businesses like Harbor Radiator are the ones we should/​need to support in our local community. I’d recommend them to anyone having issues w/​their radiator. If the local police and firefighter’s take their fleets here, you should too.
Place rating: 5
Newport Beach, CA
Do not go anywhere else for your radiator needs. The shop is a throwback to the old days… and the fellas who run the place are nothing but honest, hardworking, friendly guys. Thanks!!!
Place rating: 5
Costa Mesa, CA
I would go out of my way to bring my business here without any hesitation. The minute you walk into the old timey front office it’s obvious these guys are the real deal and know what they are doing. The owner took care of us right away, listened to what we had to say, looked a little closer and recommended another mechanic a block away that specialized in our issue. What!!! Short story, overheating engine — but if this has ever happened to you before, you know they can tell you 100 things and take your money all the while. Not the case at Harbor Radiator — thanks for having honesty and integrity! When my radiator breaks, not if but when with my piece o’ shit car, I know where I’ll be going.
Place rating: 5
Costa Mesa, CA
You have a problem with your radiator. These are the guys to go to. Gregg and the guys are HONEST and do excellent work. I wont go anywhere else and would highly recommend.
Thanks
Place rating: 5
Costa Mesa, CA
These are THE guys. As good as it gets.
Place rating: 5
Newport Beach, CA
They are as good as their word. Everything performed as promised.