Thetford Qualifies for Free Shipping Thetford Installation Kit for Lower Discharge Check Valve #T-PF.P141

Thetford Installation Kit for Lower Discharge Check Valve #T-PF.P141

$51.81 $62.17 -17% OFF

Thetford Installation Kit for Lower Discharge Check Valve #T-PF.P141

$51.81 $62.17 -17% OFF

Thetford Installation Kit for Lower Discharge Check Valve #T-PF.P141

$51.81 $62.17 -17% OFF
Brand: Thetford

SKU: THE-T-PF.P141

Category: Toilet Accessories

More about this item

Thetford T-PF.P141 Toilet Accessories

The Thetford T-PF.P141 is a complete installation kit for the lower discharge check valve on Thetford and Tecma marine electric toilets. If your marine head is leaking back, draining slowly, or showing signs of check valve failure, this kit gives you everything needed to do the job right the first time rather than piecing together hardware from multiple sources.

The lower discharge check valve is a critical component in marine toilet systems. It prevents waste from flowing back into the bowl after flushing and maintains proper system pressure for consistent flush performance. When this valve wears out or fails, the symptoms are hard to miss: slow drainage, odor, or water creeping back into the bowl between uses.

This kit is a direct replacement for Thetford part 36420 and Tecma part 36420, making it the correct service part for a wide range of Thetford and Tecma electric marine toilet models. Always cross-reference your toilet's model number against Thetford's parts documentation to confirm fitment before installation.

Installation is straightforward for anyone comfortable with basic marine plumbing. The kit includes the hardware needed to seat and secure the check valve properly in the lower discharge port. No special tools are required beyond standard hand tools.

  • Replaces Thetford 36420
  • Replaces Tecma 36420

Normalized SKU: TPFP141

Qualifies for Free Shipping
This item qualifies for free shipping when the order is over $149
$51.81 $62.17 -17% OFF
0 watching this item.
0 LEFT IN STOCK
LIMITED TIME OFFER 00
days
00
hours
00
minutes
00
seconds

The price of this item will revert back to $62.17 at the end of this countdown.

Customer Reviews

Frequently Asked Questions

First Choice Marine is an online marine retailer offering a wide variety of marine parts and accessories from reputable manufacturers. With access to over 150,000 items through our distributor network, including current inventory, new products, and special orders, we are your go-to source!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

Free Shipping

On most orders $149+ to the continental 48 US states.

Secure Shopping

Fast, secure checkout with a variety of payment methods.

Shop with confidence

25+ years serving the marine industry.

Support center

Need help? Contact us via live chat, phone, or email.