--- product_id: 667820936 title: "25660, 4021-732 Pilot Assembly Natural Gas (NG) for Heatilator, Heat-N-Glo and Quadrafire Stove & Fireplace, Replacement Natural Gas Pilot Assembly for Heatilator GNDC33, GNDC36" brand: "zuviuviz" price: "€ 84.55" currency: EUR in_stock: true reviews_count: 8 category: "Zuviuviz" url: https://www.desertcart.hr/products/667820936-25660-4021-732-pilot-assembly-natural-gas-ng-for-heatilator store_origin: HR region: Croatia --- # Durable natural gas pilot assembly Includes thermopile, thermocouple & sparker Easy 30-min installation fix 25660, 4021-732 Pilot Assembly Natural Gas (NG) for Heatilator, Heat-N-Glo and Quadrafire Stove & Fireplace, Replacement Natural Gas Pilot Assembly for Heatilator GNDC33, GNDC36 **Brand:** zuviuviz **Price:** € 84.55 **Availability:** ✅ In Stock ## Summary > 🔥 Ignite your cozy moments with flawless reliability! ## Quick Answers - **What is this?** 25660, 4021-732 Pilot Assembly Natural Gas (NG) for Heatilator, Heat-N-Glo and Quadrafire Stove & Fireplace, Replacement Natural Gas Pilot Assembly for Heatilator GNDC33, GNDC36 by zuviuviz - **How much does it cost?** € 84.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/667820936-25660-4021-732-pilot-assembly-natural-gas-ng-for-heatilator) ## Best For - zuviuviz enthusiasts ## Why This Product - Trusted zuviuviz brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide Compatibility Range:** Fits Heatilator, Heat-N-Glo, and Quadrafire models with specific serial numbers—perfect for legacy and modern fireplaces. - • **Complete Pilot Assembly Kit:** Includes thermopile, thermocouple, pilot tubing, sparker electrode, and secure mounting bracket for seamless integration. - • **Quick & Hassle-Free Installation:** Designed for a straightforward 30-minute replacement that revives your fireplace’s performance instantly. - • **Trusted by Users with 4.7⭐ Rating:** Highly rated by professionals and homeowners alike for durability and consistent operation. - • **Precision Engineered for Natural Gas:** Optimized for standing pilot units only, ensuring reliable ignition every time. ## Overview The 25660, 4021-732 Pilot Assembly is a premium natural gas replacement part designed exclusively for standing pilot fireplaces from Heatilator, Heat-N-Glo, and Quadrafire. Featuring a complete set of components including thermopile, thermocouple, pilot tubing, and sparker electrode, it ensures dependable ignition and long-lasting performance. Compatible with a broad range of models, this assembly offers an easy 30-minute installation that restores your fireplace’s efficiency, backed by a strong 4.7-star customer satisfaction rating. ## Description desertcart.com: zuviuviz 25660, 4021-732 Pilot Assembly Natural Gas (NG) for Heatilator, Heat-N-Glo and Quadrafire Stove & Fireplace, Replacement Natural Gas Pilot Assembly for Heatilator GNDC33, GNDC36 : Home & Kitchen Review: Fast shipping - Fits perfectly Review: Resolved issue with burner going out - Installed into my 25 year old Heatilator fireplace in 30 mins and fixed my problem with the burner going out randomly. ## Features - Note : The 4021-732 pilot assembly used for natural gas ONLY, For standing pilot units only, does not work with SIT valve. - High-quality : Our natural gas pilot assembly 4021-732 is made with durable materials. It comes with a thermopile, thermocouple, pilot tubing, and sparker electrode. Also included is a bracket that secures the assembly next to the burner. - Fits the following HHT gas fireplace models : The pilot assembly for Quadrafire Fireplace Parts: CD4236R & CD4236LR - Pre serial # GA1563745, CD4842R & CD4842LR - Pre serial # GA1563745, CGC150 & CGC150L - After date code 39/95, G141 & G141L, G270M & G270LM, GB4336 & GB4336L, GB4942 & GB4942L, GBCL36 - Pre serial # GA1549727, GBCR36 - Pre serial # GA1549727 - Fits the following fireplace parts : GBFL36 - Pre serial # GA1549727, GBiS36 & GBIS36L, GBST36 & GBST36L - Pre serial # GA1549727, GC150 & GC150L - After date code 39/95, GCBC36 & GCBC36L, GCBC42 & GCBC42L, GCBC60 & GCBC60L, GCBC80 & GCBC80L, GCDC36 & GCDC36L, GCDC42 & GCDC42L, GCDC60 & GCDC60F, GCDC80 & GCDC80L, GDCH36 & GDCH36L, GDCH60 & GDCH60L - Pre serial # GA1540727 - Fits the following fireplace parts: The pilot assembly for Quadrafire Fireplace Parts: DV750 (POST SN 3196), DV425, DV425L, SAPPHIRE 50 (DV450), DV-750, DV-450, DV-425, DV400S, DV-400, DV400, DV400L, Twilight II-B, DV750 (PRE SN 3096) and Heat-N-Glo Fireplace Parts R-CAST. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #356,653 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #256 in Fireplace Replacement Parts #79,958 in Home Décor Products | | Customer Reviews | 4.7 out of 5 stars 22 Reviews | ## Images ![25660, 4021-732 Pilot Assembly Natural Gas (NG) for Heatilator, Heat-N-Glo and Quadrafire Stove & Fireplace, Replacement Natural Gas Pilot Assembly for Heatilator GNDC33, GNDC36 - Image 1](https://m.media-amazon.com/images/I/6125X52U6zL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fast shipping *by K***N on January 2, 2026* Fits perfectly ### ⭐⭐⭐⭐⭐ Resolved issue with burner going out *by C***S on December 15, 2025* Installed into my 25 year old Heatilator fireplace in 30 mins and fixed my problem with the burner going out randomly. ### ⭐⭐⭐⭐⭐ Replace the entire assembly *by M***R on November 16, 2025* A great replacement part for my gas fireplace. I wished that I had purchased the pilot assembly from the start. Instead, I bought one of the components (thermocouple) but it didn't fix the problem. I'm happy now that it's installed and working fine. Easy to install and of good quality. ## Frequently Bought Together - zuviuviz 25660, 4021-732 Pilot Assembly Natural Gas (NG) for Heatilator, Heat-N-Glo and Quadrafire Stove & Fireplace, Replacement Natural Gas Pilot Assembly for Heatilator GNDC33, GNDC36 - Midwest Hearth Rock Wool for Gas Log - 6 oz. Bag - IHP OEM - HHT Gas Fireplace Robert Shaw Valve - NG (24033) - Original OEM Part --- ## 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.hr/products/667820936-25660-4021-732-pilot-assembly-natural-gas-ng-for-heatilator](https://www.desertcart.hr/products/667820936-25660-4021-732-pilot-assembly-natural-gas-ng-for-heatilator) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-11-10*