Kirk's Radiator & Auto Air Conditioning, Inc

Kirk's Radiator & Auto Air Conditioning, Inc Stan Newkirk is the son of Leonard "Kirk" Newkirk who started the business in 1948 after serving in WW II.

Auto Radiator Cooling Systems, Air Conditioning & Exhaust Sales, Service & Repair, Radiator Repair & Service, Catalytic Converters, Custom Radiators, Aluminum Radiator Repair, Fabrication & Welding Stan took over the business in 1973, four years after Kirk's death. He has built the business into one of the largest Shops in San Diego and with the help of his son, he plans to keep the business opera

ting for many more years. At Kirk's Radiator & Auto Air Conditioning, our #1 concern is customer satisfaction. We believe this can only be accomplished by providing superior service, quality products, and competitive pricing -- all in a timely manner to meet customers’ needs. We are committed to business integrity and honesty through hard work, organization, courtesy, and communication. We believe that word-of-mouth is the most effective and reliable kind of advertising. We realize, however, that it only comes with making customers happy, so our entire team works hard to exceed all customer expectations by providing unparalleled service and top quality products.

Not all heroes wear capes... some wear grease-stained uniforms! 🔧 It’s National Automotive Service Professionals Week, a...
06/09/2026

Not all heroes wear capes... some wear grease-stained uniforms! 🔧 It’s National Automotive Service Professionals Week, and we just want to say a massive THANK YOU to our crew. They keep the wheels turning, the engines purring, and our customers safe on the road. ❤️

If you see them working hard in the bays this week, give 'em a wave! 👋

06/08/2026

★★★★★
"I have been using Kirk's Radiator for over 15 years for all our air conditioning and cooling system problems and have ALWAYS received 5 star service.

This visit was for replacing the radiator in one of our business tractors 🚜 and they did the entire job with labor and coolant for $300 cheaper than another shop wanted just for the parts.

THANK YOU!"
- K. O.

Thinking about trying one of those "pay-as-you-go" insurance plans to save a few bucks? As mechanics, we need to give yo...
06/07/2026

Thinking about trying one of those "pay-as-you-go" insurance plans to save a few bucks? As mechanics, we need to give you a quick heads-up about a hidden side effect!

A recent article by CarBuzz breaks down how these programs track your driving. One popular method involves plugging a small telematics dongle directly into your car's OBD-II port (under the dash). While it's highly accurate, these devices draw power directly from your vehicle’s 12-volt battery system. ⚠️ If your car sits idle for a couple of weeks, that little device can drain your battery.

Read the pros and cons before you plug anything in!

Our ways of driving are continuously changing, so why should your insurance stay the same?

🌡️📈 Did you know that for every 10-degree jump in outside temperature, the air pressure inside your tires can increase b...
06/04/2026

🌡️📈 Did you know that for every 10-degree jump in outside temperature, the air pressure inside your tires can increase by 1 to 2 PSI?

As June heats up, the pavement can get brutal. If your tires were already slightly over-inflated, that extra expansion can put you at risk for a summer blowout. If you need a tire inspection, contact our team for assistance. 🛞⚠️

Is your car celebrating a milestone? 🎂 Once your odometer hits 75k miles, it’s officially entered its " prime." At this ...
06/02/2026

Is your car celebrating a milestone? 🎂 Once your odometer hits 75k miles, it’s officially entered its " prime." At this stage, your engine's seals can start to lose their flexibility, which can lead to tiny oil leaks on your driveway or to oil burning that wasn't there before. High-mileage oil is specifically formulated with seal conditioners that help swell and rejuvenate those old gaskets, keeping the oil inside the engine where it belongs.

Need an oil change with a high-mileage oil option? Turn to our team to get the ultimate oil change service.

Between high interest rates and "market adjustments," the average new car payment is enough to make anyone sweat in 2026...
05/31/2026

Between high interest rates and "market adjustments," the average new car payment is enough to make anyone sweat in 2026. But here’s a secret: The cheapest car you’ll ever own is usually the one already sitting in your driveway!

This article from CarBuzz hits the nail on the head. You can fall back in love with your current ride and save thousands in the process. ✨

Seriously. Don't buy a new car right now.

One of the biggest secrets to reaching 300,000 miles is simply addressing problems immediately. In this Autoblog article...
05/28/2026

One of the biggest secrets to reaching 300,000 miles is simply addressing problems immediately. In this Autoblog article, experts explain how ignoring a small issue leads to "cascading failures", where one cheap part failing ends up ruining multiple expensive ones.

These simple maintenance habits can keep your vehicle running far longer than you think.

🛑 STOP! Before you check your coolant level, remember the  #1 Rule of Radiators: NEVER open the cap while the engine is ...
05/26/2026

🛑 STOP! Before you check your coolant level, remember the #1 Rule of Radiators: NEVER open the cap while the engine is hot. Opening that cap on a hot engine is like opening a shaken-up soda bottle, but with 220-degree liquid.

The best way to go about it is to check the "overflow" plastic reservoir (the see-through tank) while the engine is cool. If it’s below the "Full" line, give us a call. We’ll top you off and check for the "why" behind the low level!

We often get asked: " Can I just buy one of those recharge cans from the parts store?" 🤔The truth is, your A/C is a seal...
05/24/2026

We often get asked: " Can I just buy one of those recharge cans from the parts store?" 🤔

The truth is, your A/C is a sealed system. If it needs more refrigerant, it means there is a leak somewhere. Adding a "quick fix" can often introduce air or moisture into the system, which can eventually ruin your parts. Our mechanics can recover the old refrigerant, vacuum-test the system for leaks, and refill it to the exact amount required by the manufacturer. Do it right the first time and stay cool all summer long! 🧊

05/23/2026

★★★★★
"Ryan and his team are the best! I had my bus serviced in AZ for 3 weeks trying to figure out the AC problem and I brought my bus into Kirk's and they were able to diagnose and fix the problem in a short few hours! Very reliable and good people. Fantastic service! Highly recommend!!"
- K. F.

Address

1754 N Magnolia Avenue
El Cajon, CA
92020

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 4:30pm

Telephone

(619) 562-8383

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