Castro Cepak Motorsports Diesel & Auto Repair

Castro Cepak Motorsports Diesel & Auto Repair Castro Cepak Motorsports Diesel & Auto Repair is a reliable auto repair shop in Billings, MT. For quality repair and services, you can trust, contact us today!

Castro Cepak Motorsports Diesel & Auto Repair is your family-owned and operated auto repair shop that provides reliable services to Billing, Montana! With 50 years of combined business experience, our shop has ASE Certified technicians who provide an array of services and repairs like scheduled maintenance and tune-ups, engine services, brake and suspension work, and so much more! As a NAPA Auto Care Center, our work is backed by NAPA’s 24-month/24,000-mile Nationwide Peace of Mind warranty.

Crusty headlight got your ride looking gross? 🤮 We can help with that! A simple headlight restoration can go along ways ...
07/01/2026

Crusty headlight got your ride looking gross? 🤮

We can help with that! A simple headlight restoration can go along ways on making your vehicle look new again!

To make an appointment for your vehicle please check out our website or give our office a call today!📱

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

Catastrophic failure‼️This Promaster came in for simple diagnosis and turned into some rather in depth repairs. The conc...
06/30/2026

Catastrophic failure‼️

This Promaster came in for simple diagnosis and turned into some rather in depth repairs. The concern was engine would not turn over and the starter would clunk. Thinking at first there was possibility a bad starter, we quickly found out that the engine was seized. Removed the upper and lower oil pans to find the carnage. 🤯

While tearing down the bad engine to swap accessories to a complete used engine found one of the intake runners was full of water causing the engine to hydrolock resulting in this catastrophic failure. The replacement complete engine was not out of the same chassis, therefore a lot of part swapping needed to be done to get this new engine to work correctly. None the less we got the job done and the vehicle back on the road! 🚐

Enjoy the pictures of carnage and process along the way‼️

From simple repairs to in-depth engine replacements, we got you covered! 🧐

Do not hesitate to get ahold of us for ALL your vehicle(s) repair needs! 🔧

Give the office a call or check out our website to schedule your vehicle appointment today. 📆

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

Have the fluids in your vehicle been serviced lately?There are a lot more fluids in your vehicle outside of engine oil t...
06/23/2026

Have the fluids in your vehicle been serviced lately?

There are a lot more fluids in your vehicle outside of engine oil that need to be serviced at certain mileage intervals to keep those components properly liberated and operating properly. Skipping important services can cost you THOUSANDS.

This 2015 Ford F-250 came in for repairs before a long road trip and found the transmission fluid to be due for service. This includes; Fluid, Pan Gasket, Filter Assembly, & a proper cleaning to keep this unit shifting properly.

Common Fluids;

Engine Oil
Coolant
Transmission Fluid
Differential Oil
Transfer Case Fluid / PTU Fluid
Brake Fluid
Power Steering Fluid
ETC.

Here is a the process of performing a transmission service on this 15 Ford F-250 6.7L

Give the office a call or check out our website to schedule your appointment! 📅

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

Happy Father’s Day!!Dads are the first mechanics we ever knew—fixing bikes, toys, and everything in between. Today, we s...
06/21/2026

Happy Father’s Day!!

Dads are the first mechanics we ever knew—fixing bikes, toys, and everything in between. Today, we salute the men who always make sure their families are safe and moving forward.

This Father's Day, let us handle the heavy lifting. Treat your dad (or yourself!) to top-tier diesel and auto service.

Another fun one in the books! This beautiful 2026 Ford F-250 6.7L Platinum came in for some suspension upgrades! Custome...
06/17/2026

Another fun one in the books!

This beautiful 2026 Ford F-250 6.7L Platinum came in for some suspension upgrades! Customer provided a CJC Commuter 3.5in Lift Kit that came with a bunch of good quality Carli components! Customer also provided us with some new wheels and tires. We were able to install this awesome kit on this beautiful truck across the course of a couple days, and we just absolutely love the way it turned out!

Thank you John P. For trusting us with your build, vision, & vehicle. Hope you enjoy!

We do more than vehicle repairs! Give the office a call or check out our website to schedule your appointment! 📅

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

Is the catalytic converter in your vehicle keeping you down? Is your vehicle kicking the dreaded P0420 MIL code?We can i...
06/12/2026

Is the catalytic converter in your vehicle keeping you down?

Is your vehicle kicking the dreaded P0420 MIL code?

We can install replacement catalytic converters, to get your exhaust system flowing like new again.

A clogged of faulty converter can make your vehicle run rough or even stall when at operating temperatures. Ignoring converter codes can cost you more headaches in the future.

Give us a call or check out our website to schedule your vehicles appointment today!

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

It’s race day for Troy Cepak & Jeremy Castro @ Big Sky Speedway! Go support your local racetrack/drivers tonight & tomor...
06/12/2026

It’s race day for Troy Cepak & Jeremy Castro @ Big Sky Speedway!

Go support your local racetrack/drivers tonight & tomorrow night for a good time!

Wishing the boys the best of luck this weekend. 🏁

* Tip Of The Day *More Than Just Starting: Powering Modern Vehicle ElectronicsYears ago, a car battery's only major job ...
06/10/2026

* Tip Of The Day *

More Than Just Starting: Powering Modern Vehicle Electronics

Years ago, a car battery's only major job was cranking the engine. Once the vehicle was running, the alternator took over. Today, passenger vehicles are packed with advanced electronics that pull massive amounts of power.

A premium battery acts as a crucial voltage stabilizer for sensitive onboard systems, including:

Advanced Driver Assistance Systems (ADAS) like lane assist and automatic braking.

Infotainment systems, GPS, and Bluetooth connectivity.

Complex Engine Control Modules (ECMs) and body control computers.

If a battery's voltage drops even slightly below optimal levels, it can trigger ghost diagnostic trouble codes (DTCs), cause intermittent electrical glitches, or place unnecessary stress on the vehicle's alternator, leading to premature alternator failure.

If you are having issues with your charging system in your vehicle give us a call today to schedule an appointment to have it tested!

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

Did you know we install vehicle accessories as well as repairs?This 09 Dodge Ram 2500 6.7L came in with an issue with th...
06/09/2026

Did you know we install vehicle accessories as well as repairs?

This 09 Dodge Ram 2500 6.7L came in with an issue with their old worn out aftermarket rear airbags where they would slowly seep out air over time. Found the bags to be badly weathered and leaking air slowly out the seems. We provided and installed a new Air Lift Kit to correct this issue. Results turned out nice and bags now hold proper desired pressure without leaking.

If your truck is sagging in the rear due to heavy loads, then this is a nice viable option to keep your bumper off the ground and to keep your rear suspension from being bottomed out.

If your vehicle(s) needs any accessories or repairs remember to give us a call, as we can get you handled in a timely fashion!

🌐: https://www.castrocepak.com
☎️: 406-850-0201
📧: [email protected]
📍: 1405 S 32nd ST W Billings, MT 59102
🕐: Monday-Friday 7:30am-5:00pm

Address

1405 South 32nd Street West
Billings, MT
59102

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 5pm

Telephone

+14068500201

Website

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