--- product_id: 624707692 title: "Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool with M12 or M14 Thread for GM Chevy LS1 LS3 LS6" brand: "hromee" price: "Rp674569" currency: IDR in_stock: true reviews_count: 8 category: "Hromee" url: https://www.desertcart.id/products/624707692-hromee-engine-air-valve-holder-and-cylinder-leakage-testing-assistant store_origin: ID region: Indonesia --- # Pressurizes cylinder up to 110psi M12 & M14 thread compatibility Durable brass & rubber construction Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool with M12 or M14 Thread for GM Chevy LS1 LS3 LS6 **Brand:** hromee **Price:** Rp674569 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Seal it, test it, fix it β€” keep your engine leak-proof like a pro! ## Quick Answers - **What is this?** Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool with M12 or M14 Thread for GM Chevy LS1 LS3 LS6 by hromee - **How much does it cost?** Rp674569 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/624707692-hromee-engine-air-valve-holder-and-cylinder-leakage-testing-assistant) ## Best For - hromee enthusiasts ## Why This Product - Trusted hromee brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Precision Valve Sealing:** Hold valves closed with compressed air to replace oil seals without dismantling. - β€’ **Rugged & Reliable Build:** High-pressure resistant rubber tube and brass fittings ensure durability and corrosion resistance. - β€’ **Leakage Detection Made Easy:** Diagnose engine cylinder leaks by listening for continuous air escape during compression stroke. - β€’ **Quick & Simple Installation:** 1/4" NPT quick coupler for fast air compressor connection, saving you time on every test. - β€’ **Universal Gasoline Engine Fit:** Compatible with GM Chevy LS1, LS3, LS6 and other gasoline engines using M12 or M14 spark plugs. ## Overview The Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool is a precision device designed for gasoline engines with M12 or M14 spark plugs, including GM Chevy LS series. It pressurizes cylinders up to 110psi to hold valves closed, enabling oil seal replacement without dismantling. Featuring durable brass fittings and high-pressure rubber tubing, it offers reliable, corrosion-resistant performance. Its quick coupler design ensures fast setup, making it an essential tool for efficient engine leak diagnostics and maintenance. ## Description Buy Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool with M12 or M14 Thread for GM Chevy LS1 LS3 LS6: Valve Train Tools - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Works fine! - Works fine, seems to seal well! Review: Good product with a nice price tag. - Product is as described, hose feels durable and everything was tight. Does not fit 2004-2007 Ford Triton engines with 16mm spark plugs. You can find an adapter by Lise that will fit this and works on Ford/Lincoln Triton engines. Still work keeping for the price since the first one I ordered has the 14mm and 18mm adapter that's so big it wouldn't even fit down the spark plug tube. ## Features - Pressurizes the cylinder to help hold valves closed with compressed air. So The oil seal of the valve can be replaced without dismantling. - When the cylinder is in the compression stroke. If the air tightness of the engine is not good enough, you can hear the continuous leakage of air. Diagnosis of damaged parts by listening to the leak position. - Used for the gasonline engine cylinder with M14 or M12 spark plug, have to move out spark plug before install this tool. It can be used for gasoline engines, such as cars, trucks, boats, motorcycles, ATVs, etc. Not to be used in diesel engine vehicles. - Adopt with durable rubber tube and brass fitting connectors, anti wear, high pressure resistance, anti corrosion and abrasion. Air pressure avoid the valve to falling into the combustion chamber. - 300Psi/20Bar pressure tube with M12 and M14 thread to NPT, install the joint on the position of the spark plug. There have a 1/4" NPT air compressor air pump quick coupler male plug for easy work. Note the working pressure range 30psi≀P≀110psi(2bar≀P≀8bar). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CQLXV7LS | | Best Sellers Rank | #29,688 in Automotive ( See Top 100 in Automotive ) #17 in Engine Valve Train Tools | | Brand | Hromee | | Customer Reviews | 4.4 4.4 out of 5 stars (184) | | Date First Available | December 19, 2023 | | Item Weight | 6 ounces | | Item model number | HR4145 | | Manufacturer | Hromee | | Manufacturer Part Number | HR4145 | | Model | HR4145 | | Product Dimensions | 6 x 4 x 1.5 inches | ## Images ![Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool with M12 or M14 Thread for GM Chevy LS1 LS3 LS6 - Image 1](https://m.media-amazon.com/images/I/61hnze3jnaL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works fine! *by R***S on March 12, 2026* Works fine, seems to seal well! ### ⭐⭐⭐⭐⭐ Good product with a nice price tag. *by A***W on June 22, 2025* Product is as described, hose feels durable and everything was tight. Does not fit 2004-2007 Ford Triton engines with 16mm spark plugs. You can find an adapter by Lise that will fit this and works on Ford/Lincoln Triton engines. Still work keeping for the price since the first one I ordered has the 14mm and 18mm adapter that's so big it wouldn't even fit down the spark plug tube. ### ⭐⭐⭐⭐⭐ Worked on a SBF 302 *by #***Y on February 1, 2026* I used this tool to change the valve spring seals on my SBF 302 . Worked great , I recommend . --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/624707692-hromee-engine-air-valve-holder-and-cylinder-leakage-testing-assistant](https://www.desertcart.id/products/624707692-hromee-engine-air-valve-holder-and-cylinder-leakage-testing-assistant) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-06*