Exterior Components› Car and Truck Covers

Thetford

KIT BASE ASSY HI BONE STL II

$95.82

SKU: T00Z 42138

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Thetford 42138 is a replacement toilet base designed for Aqua Magic II and Aqua Magic Residence high-profile RV toilets. It features an elongated shape and a bone color finish.

This base is a single-piece unit that offers easy installation and adjustable components. It is compatible with specific Thetford Aqua Magic models.

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

BrandThetford
Part NumberT00Z 42138

Buy with Confidence

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.

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