Local (559) 855-2659

35111 Lodge Rd.
Tollhouse, California 93667
[email protected]

Monday-Friday 8AM-4PM (PST)


If you would like to share your experience with www.rvpartssierra.com we would love to hear from you too!  Please visit our comments page

and let us know how you feel about our product, service or website.

If you would like to share your experience with www.rvpartssierra.com we would love to hear from you too!  Please visit our comments page and let us know how you feel about our product, service or website.

I would like to THANK y'all for a great job you did on my new F/S .  They fit great.

Thanks,  Mark 6/22/2020


Thank you very much I just received it yesterday and I'm very impressed with your service thank you so much J

Richard V. 5/18/2020


Thank you so much for the beautiful trim piece!!  So prompt and well done.

Diana L N. 4/24/2020


The fender skirts fit nicely... thanx so much! 

Jeff G. 4/24/2020

Purchased a pair of Keystone fender skirts - Great Service, Perfect fit, Great Quality . Pleased to find "Made In USA"

Gerald B. 4/2/2020


We received and it looks great!! Waaaayyyy better built than the original one too!

Thank YOU

Teresa L. 3/22/2020


Ref your part number 776  Fender Skirt - it fits my 2002 Holiday Rambler Alumascape 5th wheel perfectly and the taupe color is a great match!

Bob M. 3/13/2020

Great products and service. The fender I got fit perfect and made way better than the original plastic junk.

Frank M. 2/19/2020

Hello Sierra Engineering, 

I received a Fiberglass Rear Cap for my Jamboree yesterday, like 4 days ahead of schedule.

I am kind of picky about stuff. It was really good quality. Better than the original. It will be a pleasure to install it.

Thank you so much!!

Dave P. 1/24/2020

Received the Alfa wheel well trim and was here Friday and was to be here on Monday the13th. Great timing and in excellent condition. Description says will fit 05 and possibly others. Mine is an 02 and is same size but Is of better quality than what was there. About twice the thickness of original. Extremely satisfied and customer service was great. Thanks.

Larry M. 1/12/2020


Thank you so very much for the amazing fender skirts you custom made for my 1977 Road Ranger. As you can see—they are PERFECT! 

I had spent a week online trying to find some modern fender skirts that would work for my vintage trailer. I ordered and returned two different sets. I called one company and their entire team couldn’t find the right ones in the right color either. 

You were wonderful to work with and produced a high quality product that exceeded my every expectation.  Thank you for a painless and seamless transaction. 


Warm regards,


Josephine F. 1/6/2020




Thank you so much for the fender skirts! So much better than the other company I bought from in Canada. Theirs were cheap plastic. Your fiberglass replacements are so much better, and made in America! Thanks again for all your help, and for the 15% military discount.

Eugene P. 11/19/19

Received my fenders yesterday. Came in prefect condition. With just minor modification and fitting they were easily installed. Thank you for your professionalism and help.

Mark J. 11/18/19


Wanted to thank you for your help in getting this piece sent so quickly.  And all involved.  Received 10/09/2019.  Have already recommended Sierra Engineering, ask for Kristen.

Linda S. 10/11/19 

You guys sure do nice work!! I am very pleased with the results, you are the best. I can't wait to show it off. Thanks, I really do appreciate great craftsmanship.
Jerry S. 9/25/19

We think the fender skirts are just awesome by the way. We were pleased with the quality.

Faith 8/28/19

Good service, parts in good shape, already installed, looks good, all good. Thanks for the quick service.

Jack H. 8/8/19


Hi Kristen.You helped me pick out some fender skirts for my trailer and helped me pick black or grey.  I just wanted to give you some feedback.  I thought these fenders were going to be like the cheap crappy plastic ones that came on the trailer when I bought it.  But to my pleasant surprise, they are made of fiberglass, are very strong, and look great.  So THANK-YOU VERY MUCH to you and your team.  I'm very happy with these!  

Tim S. 7/29/19

Thank you for a good product. Your product put the original fenders to shame.
J. Ford 6/3/19


I just wanted to thank you for providing a better than OEM Fender Skirt. It is an exact duplicate but much better quality.
Please Thank the rep that I spoke with when I was asking questions. She was awesome on helping me place the order. I will be referring you to all my RV friends when it comes to replacement parts.
Ken 5/20/19

Hi Kristen, 

I got the replacement skirts today and was happy to find they are an exact fit !! Even the screw indents are an exact match. The color, colonial white, is close enough. The quality of your guys product is tremendous. Your skirts are heavy, stiff, thick and rigid where the factory originals are so thin they bend significantly when picked up. The model I have is an Evergreen Everlite 242RBS in case you want to add that to the known models that it fits into your catalog. Thanks again for all your help.

Jim H. 4/10/19


 I have a 1984 vintage motor home and needed a new fender skirt. After a long search I found Sierra Engineering and promptly received my new part that was a perfect fit and the quality was extremely impressive!

Jeff K. 3/1/2019


We would like to thank you for the quick turn-around time. We ordered a pair of new fender skirts for an older 5th wheel. We are very impressed with the quality and fit of your product. It is much better than the original part which had disintegrated. Please thank your team for producing a quality product.


Linda and Frank R. 1/9/19


Jamboree Class “ C “ RV left hand step-in tub. Hard to find but Sierra got it !! Outstanding customer service experience! Quality craftsmanship just beyond excellent! Glad to have found a great product and service!

Paul Z. 12/27/18

Sandy- Fender skirt arrived today perfect fit and match. I’ll be sure to let anyone needing a replacement for their Teton to contact you first.

Thanks, Paul S. 12/4/18


We purchased a fiberglass shower toilet combination base #360 for an 1958 Airstream renovation.  Service was very friendly, fast, price was excellent.  Received the part quickly and it is excellent!  We are very happy. 

Harold S. 11/27/18 



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