--- product_id: 502308609 title: "420cc Predator Engine - 1\" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust" brand: "generic" price: "€ 57.13" currency: EUR in_stock: true category: "Generic" url: https://www.desertcart.at/products/502308609-420cc-predator-engine-1-threaded-exhaust-flange-compatible-with-predator store_origin: AT region: Austria --- # Exact 2" flange center-to-center spacing 1" NPT stainless steel threaded outlet Precision CNC-cut 1/4" steel flange 420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust **Brand:** generic **Price:** € 57.13 **Availability:** ✅ In Stock ## Summary > 🔥 Upgrade your power game with precision-fit exhaust tech! ⚙️ ## Quick Answers - **What is this?** 420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust by generic - **How much does it cost?** € 57.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/502308609-420cc-predator-engine-1-threaded-exhaust-flange-compatible-with-predator) ## Best For - generic enthusiasts ## Why This Product - Trusted generic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Hassle-Free Upgrade:** Designed to factory specs for a bolt-on replacement—professional installation recommended for flawless results. - • **Optimized Exhaust Flow:** Maintains spark arrestor integrity while enabling custom exhaust setups—upgrade without compromise. - • **Universal Compatibility:** Fits Predator 301cc, 420cc, 670cc and Honda GX270, GX340, GX390 generators—versatility that powers your projects. - • **Engineered for Perfect Fit:** Custom CNC-cut flange ensures zero warping and seamless installation on Predator and Honda engines. - • **Durable Stainless Steel Outlet:** 1" NPT threaded outlet pipe crafted from corrosion-resistant stainless steel for long-lasting performance. ## Overview This 1" threaded exhaust flange is a precision CNC-cut, heavy-duty 1/4" steel adapter designed for Predator and Honda generator engines. Compatible with multiple engine sizes (301cc to 670cc), it features a stainless steel 1" NPT outlet pipe and exact 2" flange spacing for a direct, bolt-on replacement. Engineered for durability and optimal exhaust flow, it supports custom exhaust configurations while preserving spark arrestor components. ## Description Product Description Note: THIS EXHASUST ADAPTOR DOES NOT WORK ON DUR-OM-AX ENGINE 16HP OR 18 HP Compatibility: Predator 301cc 11hp 420cc 13hp 670cc 22hp, Hon-da GX270, GX340, GX390, Generators or other applications where a custom exha-ust is needed. Outlet Pipe is SS NPT 1" pipe thread, Outlet Pipe Size Approximately 1.9 inch. Flange Center Hollow To Hollow Approximately 2 inch (Size see photos for details) Propose: Leave the spark arrestor internal funnel and face plate screen in place before applying this exhaust gasket and adapter. You also have to get longer screws. The screws are M5-0.8 x 16 or M5-0.8 x 20 PRODUCT INFORMATION: Model:OT001132 Item Weight: 0.33 pounds Package Dimensions: 7.48 x 5.12 x 2.36 inches Package Included:1" Threaded Exhaust Flange ## Features - Note: THIS EXHASUST ADAPTOR DOES NOT WORK ON DUR-OM-AX ENGINE 16HP OR 18 HP - Compatibility: Predator 301cc 11hp 420cc 13hp 670cc 22hp, Hon-da GX270, GX340, GX390, Generators or other applications where a custom exha-ust is needed - Outlet Pipe is SS NPT 1" pipe thread, Outlet Pipe Size Approximately 1.9 inch. Flange Center Hollow To Hollow Approximately 2 inch (Size see photos for details) - Installation: Flange is CNC cut from heavy 1/4" steel plate to prevent warping,Strict quality control standards to Build and test. Designed as a direct replacement for your 1" NPT Flange.Made to factory specifications for a hassle-free installation, Professional installation is highly recommended - Propose: Leave the spark arrestor internal funnel and face plate screen in place before applying this exhaust gasket and adapter. You also have to get longer screws. The screws are M5-0.8 x 16 or M5-0.8 x 20 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BLBMN2HG | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | 884,667 in Automotive ( See Top 100 in Automotive ) 209 in Car Exhaust System Flanges | | Brand | Generic | | Brand Name | Generic | | Compatible with Vehicle Type | Car | | Included Components | Comes with housing | | Installation Type | Bolt-On | | Installation type | Bolt-On | | Item Dimensions L x W | 67L x 3.5W centimetres | | Item Shape | Round | | Item Type Name | Universal Fit | | Manufacturer | NBAUTO | | Manufacturer Part Number | NBAUTOOT001132-1 | | Material | Stainless Steel | | Material Type | Stainless Steel | | Model Number | OT001132-1 | | Number of Items | 1 | | Product dimensions | 67L x 3.5W centimetres | | Shape | Round | | UPC | 768472236135 | | Vehicle service type | Car | ## Product Details - **Brand:** Generic - **Material:** Stainless Steel - **Vehicle service type:** Car - **Shape:** Round - **Installation type:** Bolt-On ## Images ![420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust - Image 1](https://m.media-amazon.com/images/I/61CtoH17noL.jpg) ![420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust - Image 2](https://m.media-amazon.com/images/I/61q9N2K4kEL.jpg) ![420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust - Image 3](https://m.media-amazon.com/images/I/61r3Gi75sML.jpg) ![420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust - Image 4](https://m.media-amazon.com/images/I/61uTfAyJpLL.jpg) ![420cc Predator Engine - 1" Threaded Exhaust Flange Compatible With Predator 301 420 340 390 22hp 670 Generator or Other Applications Where a Custom Exhaust - Image 5](https://m.media-amazon.com/images/I/61MwjOGajSL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/502308609-420cc-predator-engine-1-threaded-exhaust-flange-compatible-with-predator](https://www.desertcart.at/products/502308609-420cc-predator-engine-1-threaded-exhaust-flange-compatible-with-predator) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-15*