---
product_id: 27656377
title: "T-20939 4\" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140"
brand: "quality mark"
price: "KD 26.96"
currency: KWD
in_stock: false
reviews_count: 1
url: https://www.desertcart.com.kw/products/27656377-t-20939-4-exhaust-manifold-riser-elbow-marine-power-0992
store_origin: KW
region: Kuwait
---

# Leak tested reliability Marine-grade quality CNC machined precision T-20939 4" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140

**Brand:** quality mark
**Price:** KD 26.96
**Availability:** ❌ Out of Stock

## Summary

> 🚤 Elevate Your Marine Experience!

## Quick Answers

- **What is this?** T-20939 4" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140 by quality mark
- **How much does it cost?** KD 26.96 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/27656377-t-20939-4-exhaust-manifold-riser-elbow-marine-power-0992)

## Best For

- quality mark enthusiasts

## Why This Product

- Trusted quality mark brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Marine Ready:** Built to withstand the toughest marine conditions.
- • **Durable Design:** Shot peened for a smooth, long-lasting finish.
- • **High Performance:** Uniform wall thickness for optimal exhaust flow.
- • **Leak-Proof Assurance:** Factory leak tested to ensure reliability.
- • **Precision Engineering:** CNC machined for perfect gasket fit.

## Overview

The T-20939 4" Exhaust Manifold Riser Elbow is a high-quality replacement part designed for marine engines, ensuring optimal performance and durability. With precision CNC machining, a smooth shot-peened finish, and rigorous leak testing, this riser elbow is engineered to meet the demands of marine environments while providing a perfect fit for your engine.

## Description

This item for sale is a brand new 4" Exhaust Elbow/Riser. Features: 100% Leak Tested Uniform wall thickness Clean exhaust passages Shot peened for smooth external finish All mounting surfaces CNC machined to guarantee exacting gasket mating surface Coated with a baked enamel finish Replaces: GLM 56140 Sierra 18-1939 Barr 20-0100 Marine Power 0992-593

## Features

- Replaces Barr 20-0100 Marine Power 0992-593 Sierra 18-1939 GLM 56140
- High quality, uniform wall thickness, clean exhaust passages
- Shot peened for smooth external finish
- All mounting surfaces CNC machined to guarantee exacting gasket mating surface
- Leak tested and coated with a baked enamel from the factory

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 14.6 x 7.6 x 5.8 inches |
| Package Weight | 9.19 Kilograms |
| Item Dimensions  LxWxH | 14 x 8 x 6 inches |
| Item Weight | 0.01 Ounces |
| Brand Name | H2O Performance Parts |
| Country of Origin | Taiwan |
| Manufacturer | Quality Mark |
| Part Number | Does Not Apply |
| Size | One Size |

## Images

![T-20939 4" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140 - Image 1](https://m.media-amazon.com/images/I/81fvfUaiTtL.jpg)
![T-20939 4" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140 - Image 2](https://m.media-amazon.com/images/I/81b4ihZlrwL.jpg)
![T-20939 4" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140 - Image 3](https://m.media-amazon.com/images/I/81M89RKWttL.jpg)
![T-20939 4" Exhaust Manifold Riser Elbow Marine Power 0992-593 Sierra 18-1939 GLM 56140 - Image 4](https://m.media-amazon.com/images/I/818zlCA4HBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by S***A on September 6, 2019*



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**Shop now:** [https://www.desertcart.com.kw/products/27656377-t-20939-4-exhaust-manifold-riser-elbow-marine-power-0992](https://www.desertcart.com.kw/products/27656377-t-20939-4-exhaust-manifold-riser-elbow-marine-power-0992)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-13*