September Newsletter
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Another Happy Customer!

The parts I needed were very easy to look up and had several brands and options to fit any budget! Was definitely impressed with the ease of finding exactly what I needed and which would fit my vehicle.

Philip in Iowa

Upcoming Events

Need goody bag items and a gift certificate for your show? RockAuto can help! Email for more information.

29 33rd Annual Applefest
Mooresville, IN Email
30 Morelli European Car Show
Oklahoma City, OK Email
30 Pumpkin Run Nationals
Owensville, OH Email
30 Mopar Max Car Show
Cedar Falls, IA Email
1 Trackside Mustang & All Ford Car Show
Joliet, IL Email
1 Hot Rods & Harleys
Hopkinton, IA Email
1 Cartoberfest Car Show
New Hartford, CT Email
6 F.U.N. Fiats Up North
Dodgeville, WI Email
6 Sea Cruise Car Show
Crescent City, CA Email
6 Quattroberfest 2017
Brainerd, MN Email
6 Rods on the Bluff
Fresno, CA Email
7 Red River European Car Show
Fort Worth, TX Email
7 Frisco Hill Auto's Fall Car Show 2017
St. Louis, MO Email
7 Courthouse Car Show
Amelia, VA Email
7 Old Time Saturday Car Show
Farmersville, TX Email
8 Road Knights of South Florida Car Show
Fort Lauderdale, FL Email
8 Delaware Valley Oldsmobile Club Fall Show
Downingtown, PA Email
12 Southern Cruiser Crawl
Hot Springs, AR Email
13 Pow-Wow at the Beach
North Myrtle Beach, SC Email
14 Murrrieta Rod Run
Murrieta, CA Email
14 Depot Day Car & Truck Show
Gainesville, TX Email
15 Salesian Classic Car Show
Richmond, CA Email
15 Port Tobacco Marina Car Show
Port Tobacco, MD Email
15 32nd Annual Madison County Car Show
Winterset, IA Email
15 13th Annual Triangle Z Fall Car Show
Cary, NC Email
CURT Trailer Connectors & Accessories

CURT is a leading manufacturer of USA-made hitches and a complete line of towing products. In addition to vehicle-specific hitches for both cars and trucks, they also make gooseneck, 5th wheel and weight distribution hitches, as well as ball mounts, trailer balls, cargo carriers, bike racks and other towing accessories.

RockAuto now also carries a wide assortment of CURT trailer wiring connectors and connector accessories (such as connector dust plugs, mounting brackets and testers). Many of these parts are designed for specific vehicles, eliminating the need for complicated cutting and splicing.

CURT’s electrical parts are designed to work well with a vehicle's OE electrical system and built to last with:

  • Surface mount technology (SMT) electronic components that use less power, create less heat and last longer.
  • 100% testing of custom wiring harnesses and converters. Automated testing verifies individual components are working properly as well as the functionality of the complete unit.
  • Connectors featuring sturdy bonded wires and molded rubber construction.

CURT's philosophy for electrical parts is the same as their philosophy for trailer hitches: they want to provide “the perfect fit.” In the catalog you can find trailer wiring connectors listed under "Electrical-Connector" and towing products listed under "Accessories" for specific vehicles and under the Tools & Universal Parts tab.

CURT Trailer Connectors & Accessories
2017 RockAuto XOR Adventure Sweepstakes!

RockAuto and PowerNation TV are at it again. Win a one-of-a-kind 1968 Jeepster Commando built by Ian Johnson, straight from the Xtreme Off Road shop! This hardcore-ready Jeep is loaded with performance upgrades like custom suspension, 40” tires and a complete drivetrain upgrade featuring a modern Jeep 4-liter straight six. From the fuel pump in the back to the radiator out front, there are fresh new parts from RockAuto to ensure this Jeep is reliable wherever it goes.

Visit the RockAuto Promotions & Rebates page for a link to the Sweepstakes Entry Form and to see all of the current rebates and promotions.

Forum of the Month

Are you a fan of old Mopars? If so, P15-D24 is a forum for you. Topics include Mopar cars and trucks from the '30s to '60s. From stock flatheads to highly modified, you will find Chrysler, DeSoto, Dodge and Plymouth cars and trucks all well represented in this friendly forum.

If you are the administrator or member of a forum and you would like to see your website featured in an upcoming newsletter and receive a discount code to share with your members, contact

Repair Mistakes & Blunders
Repair  Mistakes & Blunders

After graduating high school in 1976, I began my career as a mechanic at a Ford dealership. They started me out working on electrical problems. After a few months, I was feeling confident with my abilities, and that is when the following happened.

A brand new 1977 Country Squire station wagon came to me straight from the delivery truck with a direct short in the left turn signal, brake and tail lights. With my newly acquired "wealth of knowledge," I immediately diagnosed the problem as a crimped wire loom and began taking apart the interior of the car to find the bad wire(s).

After several hours, and many strange looks from the shop foreman and co-workers, I had exposed every inch of the wire loom from the front to the back of the station wagon. The short was still present though. Finally, I decided the problem had to be in the tail light socket.

When I took the tail light bulb out, the short went away. Upon closer inspection, I found the tail light bulb filament had collapsed, creating a direct short. A single burnt out bulb was the issue the entire time. I learned a very valuable lesson that day. Always check the simple things first!

Dana in Oklahoma

Tell us about your most infamous auto repair blunder or unconventional fix. Use your woe to help others avoid similar mistakes or share off-the-wall solutions that worked (at least for a while!). Please email your story to Include your mailing address and if you would like a RockAuto T-Shirt (please let us know your shirt size) or Hat if we publish your story. See the T-Shirts and Hats under Tools & Universal Parts in the catalog. The story will be credited using only your first name and your vague geographic location (state, province, country, continent, etc.) so you can remain semi-anonymous!

Automotive Trivia
Automotive Trivia

A marcel spring is made by adding waves to a flat piece of metal (or other material). The flexibility of the waves acts as a spring or cushion. Where are marcel springs found in many cars and trucks?

A. Inside seat backs
B. Wedged between the Brake Pads and Brake Calipers
C. Sandwiched in the layers of the Clutch Friction Disc (vehicles with manual transmissions)

Answer below

Original Part Is Not Original
Tom's Story

Last weekend, my daughter noticed the burned-out Turn Signal/Tail Lamp/Brake Light Bulb in her '05 Mustang had 3057 stamped on it, while the new bulb from RockAuto was part number 4057. Was she installing the wrong bulb? In a few decades, will the car show judge grab back the first-place trophy after noticing her Mustang has mismatched Brake Light Bulbs? My daughter was relieved to discover the other two bulbs in the Tail Lamp Assembly were 4057s. The bulb from RockAuto made the Mustang factory-stock again!

A previous owner had likely installed the 3057 bulb because it was the only bulb an auto parts store had. The 3057 and 4057 bulbs have similar wattage and brightness, so why take up more space by stocking both part numbers. The 3057 was close enough to a 4057.

One of the nice things about getting parts from, is not having to accept "close enough" parts. Why pay a lot more for "similar" specifications when RockAuto has the part with OE specs? I am not as particular about things as my daughter is, but I do wonder about the impact of stacking together too many "close enough" variations over the years. Maybe current, resistance, voltage, etc. errors will eventually add up to something that a computer module will flag as a problem.

This simple bulb repair taught my daughter that a part is not necessarily OE just because it was already on her used car. It was a great reminder for me too. Her '05 Mustang is only the second vehicle in the family fleet built this century. I have trouble remembering that it stopped being a new car long ago and has its own repair history.

New 4057 bulbs next to burned out 3057

Tom Taylor,

To read more of Tom's articles, click this link and choose from story titles on the Newsletter Archives page.

Christopher's 1984 Audi Coupe GT
Christopher's 1984 Audi Coupe GT

I have always enjoyed daily-driving odd cars, from a Saab SPG Turbo to a Ford Contour SVT, but my current car is the one I am truly in love with, a 1984 Audi Coupe GT. I am the fourth owner of this 200k mile, square body, front wheel drive, inline 5 cylinder, manual transmission car, built in Germany on a chassis designed for rally racing. The car is such a joy to drive in a world full of computer controls where visceral feelings are lost. Driving the Audi transports you to a time when you truly feel connected to the car with a cable operated dual throttle body, a mechanical clutch and non-intrusive power steering. Some things that some modern cars are trying to emulate with computers, but failing at.

That being said, the car is over 30 years old, and needs constant maintenance to run at its best. Thankfully RockAuto has the hard to find parts I have needed. Parts like engine gaskets, spark plug wires, ignition reluctor, hard to find light bulbs, A/C dryer, A/C gaskets, air filters, and most recently, bearings to install a limited slip differential. The best part is that the prices are so affordable. I find myself buying extra parts to keep in stock just in case.

Christopher in Virginia

Share Your Hard Work
Do you purchase parts from RockAuto? If so, RockAuto would like to give you the opportunity to have your car or truck possibly featured in one (or occasionally more) of our publications such as the monthly newsletter, collector magnets or RockAuto social media. New, old, import, domestic, daily driver, trailer queen, classic, antique, we want to see them all! Please email with your vehicle's history, interesting details, your favorite images (tips for taking pictures of your car) and what parts from RockAuto you have used.

Automotive Trivia Answer
Automotive Trivia

A marcel spring is made by adding waves to a flat piece of metal (or other material). The flexibility of the waves acts as a spring or cushion. Where are marcel springs found in many cars and trucks?

A. Inside seat backs
B. Wedged between the Brake Pads and Brake Calipers

Answer: C. Sandwiched in the layers of the Clutch Friction Disc (vehicles with manual transmissions)

Marcel springs are sandwiched in the friction material layers

Back up to trivia question