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.

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 had 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 


Thank you for the awesome service and product. So much better than the original plastic ones. Just wanted to thank you for the quick turnaround and delivery. Actually received them a couple of days ago. Anyway have a great tomorrow and an great weekend.

Richard C. 11/16/18


When our shower was totaled by a blow out from a rear tire I thought we would be without a shower for the rest of our ownership.  I went on the internet to see what I could find.  The firs site I found was Sierra.  When I called them they said they had the exact shower pan I needed.  I ordered it, received it, installed it and returned our shower to operation.  The price was good, and delivery was quick.  Thank you for your help.

Michael W. 10/8/18 

I ordered fender skirts for a 1999 5th wheel.  These are so much nicer than the flimsy originals! Arrived in a timely manner and were well packaged.  Thanks for a job well done. 

Linda R. 10/7/18 

The fenders I got for my Holiday Rambler fit absolutely perfect and look great.  I will tell all my RV companions  about you. They look better than the original one  ever did. 100% happy!

R.S. 9/9/18

I just wanted to let you folks know that I received the fender skirts.  They were perfect and impressed with the quality of the skirts and the way you handled my order.  In the future you will have my business if I ever need another replacement.  I will also let my fellow RVers  of your quality of work.


Ben S. 8/29/18


Fit and finish is impeccable! No trimming needed, just recommend you pre-drill holes for screws since self tapping screws might crack it if they flare to much.  A much stronger and higher quality part than OEM for half the price.

Ivan 7/23/18


Kristen was especially helpful in locating fender skirts for my older model Sunnybrook Travel Trailer. It was refreshing to speak with someone that was personable and knowledgeable.  She was prompt in sending the detailed description and final invoice. Kudos to Kristen.

T. F. 7/13/18

I got all the trim parts you sent . They are very high quality and look like a perfect fit (bumper, wheel well, rear edge,and top cap trim) Thank you for the great job. I have told several people and my local RV center about how you can supply parts difficult to find. Keep up the good work! 

M.W. 6/21/18 


When it came to replacing 10 year old disintegrating large plastic rear cap on my toy hauler, Sierra Engineering to the rescue! 1/3 of the OEM cost for a product that is so much sturdier and of much higher quality than OEM! And not just that. We had a camping trip planned for bext weekend. Phoned them on a Friday and received a call on Tuesday that part is finished! Unbeatable customer service!

Ivan S. 6/18/18 


Wow these fender skirts are Great! They arrived today and in perfect shape. Thanks for all those FRAGILE stickers on the package. Not one dent or ding in the box anywhere! You packing and UPS shipping is the best! Worth every penny. Very heavy duty. Much heavier duty fiberglass then what I envisioned. Great job everyone there. Thank you!

Matthew M. 5/21/18 


I searched for days for this item and just when I was going to give up I found your company , I am a happy camper now lol thank you and I will be a good customer have a great day !!

Michael G. 5/4/18 


Received the fender skirt today, exact match Thank You for a great product! 

Duane W. 5/3/18

Thank you for the fender, looks and fits great, now if I can find some original decals, my Komfort will look much better.

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