PTNHZ 24mm Thru Hull Exhaust Tip for Diesel Parking Heaters - Marine

In this review of the PTNHZ 24mm thru hull exhaust tip, the bottom line is simple: it is a compact, corrosion-resistant exhaust outlet built for boats and vehicles using diesel parking heaters that accept a 24mm inner diameter hose. The reviewer found the single biggest reason to buy is the use of 316 stainless steel and a polished finish that resist saltwater corrosion and heat in harsh environments. Installation is straightforward and the package includes gaskets and fasteners, which makes it practical for DIY installs on boats, trucks, or cars using Webasto, Planar, Eberspacher or compatible Chinese diesel heaters.

Key Features

• 24mm fit: Designed for hoses with a 24mm (0.94 in) inner diameter, it provides a snug connection to common diesel parking heater exhaust lines.
• 316 stainless steel: Solid 316 stainless construction and polished surface deliver increased resistance to corrosion and heat for marine and roadside use.
• Complete kit: Ships with one thru hull piece, three gaskets and three screws with nuts so you have the basic hardware needed for installation.
• Wide heater compatibility: Intended to work with Webasto, Planar, Eberspacher and many Chinese diesel parking heaters, making it versatile for replacement or new installs.
• Straight outlet design: The straight configuration keeps exhaust routing simple and minimizes bends that can trap soot or moisture.

Who It's For

This part is aimed at boat owners, RV and truck owners, and installers who need a small, durable thru hull exhaust for diesel parking heaters that accept a 24mm hose. It suits people who value corrosion resistance and want a ready-to-install kit with gaskets and fasteners included.

It is not intended for large engine exhaust systems or heaters requiring larger diameter outlets. If a different hose diameter, angled outlet, or integrated silencer is required, shoppers should look for a model designed to those specs instead.

Pros & Cons

Pros

• Marine-grade 316 stainless provides strong corrosion and heat resistance for long life in harsh environments.
• Includes gaskets and mounting screws so the part can be installed without sourcing additional hardware.
• Straight design and 24mm sizing match many popular diesel parking heaters for quick replacement.
• Polished finish improves appearance and eases cleaning of soot deposits.

Cons

• Only available in a straight outlet for 24mm hose; users needing other diameters or angled tips must choose a different product.
• Does not include a flange or integrated muffler, so noise reduction may need separate components.

Specifications

Our Verdict

The PTNHZ 24mm thru hull exhaust tip is a solid value for anyone replacing or fitting an exhaust outlet for a diesel parking heater where a 24mm hose is used. Its 316 stainless construction, included hardware, and compatibility with common heater brands make it a practical, long-lasting choice for marine and vehicle installations, provided a straight tip and this specific diameter meet the project requirements.

Frequently Asked Questions

Will this fit my diesel heater exhaust hose?
It fits hoses with a 24mm (0.94 in) inner diameter and is intended for use with Webasto, Planar, Eberspacher and compatible Chinese parking heaters.

Is the material suitable for saltwater use?
Yes, the part is made from 316 stainless steel with a polished surface for improved corrosion resistance in marine environments.

Does it come with mounting hardware?
Yes, the package includes three gaskets and three screws with nuts to secure the thru hull outlet.