Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Beginner — under 30 min
Overview
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Thetford |
| Part Number | T00Z 51709SP |
Videos
etrailer | All You Need to Know About the Thetford C402C Cassette Toilet
Thetford Cassette Toilet, C 402C, C 402X AND C 403L, MDC USA Trailers
Set Up and Use of the Thetford C400 Cassette Toilet
Thetford C402C Cassette Toilet Unboxing For RV
C400 | Control panel MK1 (C-3232062/ X-3232262/L-3231362) replacement | Cassette toilet | THETFORD
HOW TO FIT A TOILET IN A VAN! Thetford Cassette Toilet || Van Conversion
C400 | Float arm (32304) replacement | Cassette toilet | THETFORD repair instructions
Thetford Cassette Toilet Cleaning Tips & Tricks + How To Open
Camper Toilet Flush Repair Thetford C402 (Motorhome)
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy