always the best customer service and willing to go out of their way to find the parts you need. i highly recommend them.

I highly recommend this place, customer service by Cesar is high quality. He is very friendly and helpful makes you feel at home. Also, he is bilingual speaking both Spanish-English languages. ASK FOR CESAR- HE WILL FIND WHAT YOU NEED!! Either by phone or in person.

One of the best costumer service I have recieved from an auto dismantler. Not only do they rebuild manual transmission and differentials great but also sell used car parts that are in great condition. Also, when I needed warranty on a transmission they were quick to get me another one asap with no hassle at all compared to other auto dismantlers who try to give you a run around. Even in person the staff was lively and had great attitudes. I don't write many reviews but my experience there gave me the motivation to write one for them . Thank you guys from L and R Auto

Noel got me back on the road. I needed a transmission for a 2006 Scion Xb, Called Sierra's and spoke with Noel and he had one and the price was fantastic. He kept in constant contact with me via text, he was always extremely pleasant, respectful, responsive and helpful. He even texted me the day after Christmas to make sure that I received the transmission in good shape.Noel went out of his way to help me out over the holiday season, and got me back on the road. For that I will never forget how well he treated me. God bless and thanks again!

Called twice to verify if they had a part we needed to do a job for a customer. They said yes and gave us a price. So we go all the way there takes a hour to get there because we are stationed in Pomona. Once we get there they tell us they don't have it laughed at our situation and basically told us we are out of luck. Worst place ever. Lost time and a customer don't recommend this place to anyone.

My truck rear end was done. They Rebuilt one from a newer year and brought it to me Not a bad Price , and I returned my old one after and got 50 core. Cool cats

Find somewhere else to buy your parts! Purchased a instrument cluster for a Superduty for $200. Temperature gauge doesn't work and it had 40,000 miles more than advertised. They tell me I have to talk to Mike. Three days of passing me along I finally talk to Mike who says they will swap for another cluster if they have one. Three weeks later I have to call them back. Mike says he can't find one and then wrote me off as out of warranty. Another poor quality wrecking yard that won't stand behind their high priced junk!

Verry satisfy with the excellent customer service I received over the phone from cesar F. When ahead and help me over the phone and when ahead and drive down to the shop and receive verry good service got what I need it and verry satisfied with their service to customers and time wise the best i will sure come back to sierras truck and auto for any of my car parts need thank you mr cesar for your help and service verry kind ..

Great place to buy your truck parts

Great place to shop for ur auto parts got my truck a tranny here for a good price great customer service by cesar awesome guy verry loyal person and hook us up with a great price. I will recomend this place to my friends im verry happy with the service