Looking for the best aluminum oil gallery plugs to upgrade your LS engine? We’ve tested and reviewed the top 10 options to help you find the perfect fit for cleaner, stronger engine performance.
Aluminum oil gallery plugs are a must-have upgrade for any LS engine enthusiast. These precision-crafted parts improve oil flow, prevent dirty oil from bypassing the filter, and enhance engine performance. Whether you’re a daily driver or a high-performance builder, the right aluminum oil gallery plug can make a big difference.
We’ve tested and reviewed the best options to help you find the perfect fit. From billet aluminum designs to triple O-ring seals, these plugs are built to last. Upgrade your engine with confidence and keep it running cleaner and stronger.
List of Top 10 Aluminum Oil Gallery Plugs
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Improved Racing GM Gen III & IV LS Billet Rear Passage Plug Oil Diverter Barbell |
This billet rear passage plug is perfect for GM Gen III & IV LS engine owners who want to boost their engine’s performance and protect their oil filter. It’s a direct replacement that improves oil flow and eliminates dirty oil bypass, ensuring your engine runs cleaner and stronger. |
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TTR400 Aluminum Oil Gallery Plug – 20mm – Silver – 15332-300-000 |
This TTR400 Aluminum Oil Gallery Plug is perfect for Honda CB owners who want a lightweight, durable replacement part. It’s easy to install and fits specific Honda models. |
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1pc LS Oil Diverter Barbell, High Performance Aluminum Alloy Oil Gallery Plug for Gen III/IV Engines LS1/2/3/6, L92/99/33, LQ4/9, 4.8/5.3/5.7/6.0/6.2L |
This product is perfect for car lovers upgrading LS engines. It suits drivers needing leak-proof oil flow in high-performance, towing, or daily use. |
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BOXOB 2pcs Barbell Oil Diverter, Aluminum Alloy High Performance Oil Gallery Plug with Screws, for LS Gen III/IV Engines L92/99/33, LS1/2/3/6, LQ4/9, 4.8/5.3/5.7/6.0/6.2L |
This product is perfect for LS engine owners needing a durable, leak-proof oil diverter. It suits high-performance builds, towing setups, or daily drivers seeking reliable engine protection. |
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OTMGTGM LS Engine Gallery Plug Set Aluminum Oil Diverter Barbell Plug Oil Pickup Tube Hold Dowm Kit Bypass Valve Plug Fits LS1 LS2 LS3 LS4 LS6 LS7 LS9 LQ4 LQ9 L92 L99 LSA 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L |
This OTMGTGM LS Engine Gallery Plug Set is perfect for LS engine owners who want to safeguard their engine from low oil pressure and oil starvation. It’s an essential upgrade for anyone looking for long-lasting engine protection. |
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EVRBUL Engine Block Oil Gallery Plug, Billet Aluminum Oil Barbell for LS Engine, Oil Diverter Barbell, Oil Dumbbell Compatible with GM Gen III & IV LS V8 Engine Replace# 12573460 |
This EVRBUL Engine Block Oil Gallery Plug is perfect for car enthusiasts and DIY mechanics who want to upgrade their GM Gen III & IV LS V8 engines. It’s ideal for anyone looking to improve oil flow and protect their engine from dirty oil. |
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EVRBUL Engine Block Oil Gallery Plug Billet Aluminum Rear Passage Plug Oil Diverter Barbell Dumbbell Shaped Oil Galley Plug Compatible with GM Gen III & IV LS V8 Engine Replace# 12573460 |
This EVRBUL Engine Block Oil Gallery Plug is perfect for GM Gen III & IV LS V8 engine owners who want to ensure cleaner oil and longer engine life. It’s a direct replacement for part numbers like 12573460, offering a durable billet aluminum build with precise CNC machining and FKM O-rings to prevent any unfiltered oil from reaching your engine. |
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BOXOB 2pcs Barbell Oil Diverter Tool, Aluminum Alloy High Performance Oil Gallery Plug Parts with Screws, for LS Gen III/IV Engines L92/99/33, LS1/2/3/6, LQ4/9, 4.8/5.3/5.7/6.0/6.2L (Black) |
This product is perfect for car enthusiasts, truck owners, and everyday drivers with LS engines needing dependable oil flow and leak-proof performance. It suits those upgrading or maintaining high-performance engines like LS1, LS3, LQ4, and others in vehicles for towing, racing, or daily use. |
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OXCANO Billet Aluminum Oil Diverter Barbell & Front Gallery Plug Compatible with GM LS, LS1, LS2, LS3, LQ4 4.8/5.3/5.7/6.0/6.2L Engines w/Viton O Ring for Sealing |
This OXCANO Billet Aluminum Oil Diverter Barbell is perfect for car enthusiasts and mechanics working on GM LS engines. It’s easy to install and fits Gen 3 and Gen 4 LS models, making it ideal for upgrades or repairs. |
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3mirrors UPGRADE Billet Aluminum Oil Diverter Barbell w/DOUBLE O-rings, Oil Tube Hold Down, Front Gallery Plug Compatible with GM LS Engines, Better Sealing |
This 3mirrors UPGRADE Billet Aluminum Oil Diverter Barbell is perfect for GM LS engine owners looking to prevent oil leaks and ensure engine safety with a superior sealing solution. It’s an ideal upgrade for those who want to maintain clean oil and avoid costly engine damage from low oil pressure. |
Detailed Reviews
Discover the ultimate guide to the best aluminum oil gallery plugs, meticulously selected for peak performance and engine protection. We’ve pinpointed top-tier options that enhance oil flow and ensure engine longevity. Dive in to find the perfect upgrade for your vehicle’s needs.
1. Improved Racing GM Gen III & IV LS Billet Rear Passage Plug Oil Diverter Barbell
Improves oil flow and stops dirty oil from bypassing the filter. Double O-ring design seals the oil passage tightly. Direct replacement for GM LS Gen III & IV engines.
Precision CNC-machined from billet 6061-T6 aluminum ensures strength and durability. Threaded M4x0.7 hole makes removal quick and easy.
Viton O-rings resist heat and wear. Made in the USA for top-quality performance.
| Pros | Cons |
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Perfect For:
This billet rear passage plug is perfect for GM Gen III & IV LS engine owners who want to boost their engine’s performance and protect their oil filter. It’s a direct replacement that improves oil flow and eliminates dirty oil bypass, ensuring your engine runs cleaner and stronger.
Ready to Purchase?
2. TTR400 Aluminum Oil Gallery Plug – 20mm – Silver – 15332-300-000
Upgrade your Honda CB with the TTR400 Aluminum Oil Gallery Plug. This 20mm silver plug is built for performance and style.
Crafted from lightweight 6082T6 aluminum, it offers superior durability. The CNC machining ensures a perfect fit. It’s a direct replacement for Honda Part Number 15332-300-000.
Get yours today and experience the TTR400 difference.
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Perfect For:
This TTR400 Aluminum Oil Gallery Plug is perfect for Honda CB owners who want a lightweight, durable replacement part. It’s easy to install and fits specific Honda models.
Ready to Purchase?
3. 1pc LS Oil Diverter Barbell, High Performance Aluminum Alloy Oil Gallery Plug for Gen III/IV Engines LS1/2/3/6, L92/99/33, LQ4/9, 4.8/5.3/5.7/6.0/6.2L
The LS Oil Diverter Barbell is a premium aluminum alloy upgrade for Gen III/IV LS engines. It replaces brittle plastic parts with heat-resistant, CNC-precision design for long-lasting reliability. Perfect for daily drivers, towing, or high-performance builds.
Its triple O-ring seal uses high-temp rubber to stop leaks and boost oil flow. This part ensures clean oil circulation and reduces engine stress. It’s built to outlast stock plastic diverters without cracking or warping.
This barbell fits 4.8L-6.2L LS engines like LS1, LS3, LQ4, and more. Just replace the O-rings during maintenance for easy reuse and lasting performance.
| Pros | Cons |
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Perfect For:
This product is perfect for car lovers upgrading LS engines. It suits drivers needing leak-proof oil flow in high-performance, towing, or daily use.
Ready to Purchase?
4. BOXOB 2pcs Barbell Oil Diverter, Aluminum Alloy High Performance Oil Gallery Plug with Screws, for LS Gen III/IV Engines L92/99/33, LS1/2/3/6, LQ4/9, 4.8/5.3/5.7/6.0/6.2L
The BOXOB 2pcs Barbell Oil Diverter is made of aluminum alloy for strength and reusability. It fits LS engines like LS1, LS3, LQ4, and others from 4.8L to 6.2L. Each set includes 2 diverters and 2 screws for easy installation.
The triple O-ring seal stops oil leaks and boosts flow for better engine performance. CNC-crafted parts resist heat better than plastic, ensuring long-term reliability.
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Perfect For:
This product is perfect for LS engine owners needing a durable, leak-proof oil diverter. It suits high-performance builds, towing setups, or daily drivers seeking reliable engine protection.
Ready to Purchase?
5. OTMGTGM LS Engine Gallery Plug Set Aluminum Oil Diverter Barbell Plug Oil Pickup Tube Hold Dowm Kit Bypass Valve Plug Fits LS1 LS2 LS3 LS4 LS6 LS7 LS9 LQ4 LQ9 L92 L99 LSA 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L
This LS engine oil plug set stops low oil pressure and oil starvation. It fits all Gen 3 and Gen 4 LS engines, including 4.8L to 7.0L models.
CNC 7075 billet aluminum parts last long. The kit includes a barbell oil diverter, front gallery plug, pickup tube hold-down, and bolt. Installation is easy and boosts engine protection.
Oil starvation risks drop with this kit. It’s built for high-performance LS engines, ensuring reliable oil flow and durability.
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Perfect For:
This OTMGTGM LS Engine Gallery Plug Set is perfect for LS engine owners who want to safeguard their engine from low oil pressure and oil starvation. It’s an essential upgrade for anyone looking for long-lasting engine protection.
Ready to Purchase?
6. EVRBUL Engine Block Oil Gallery Plug, Billet Aluminum Oil Barbell for LS Engine, Oil Diverter Barbell, Oil Dumbbell Compatible with GM Gen III & IV LS V8 Engine Replace# 12573460
Upgrade your LS engine with the EVRBUL Engine Block Oil Gallery Plug. Crafted from premium billet aluminum, this oil barbell is built to last, offering superior heat and corrosion resistance. It’s designed for a perfect fit and reliable performance.
This oil diverter stops dirty oil from bypassing your filter. It features FKM O-Rings for a secure seal. Easily removable, it’s compatible with a wide range of GM LS V8 engines.
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Perfect For:
This EVRBUL Engine Block Oil Gallery Plug is perfect for car enthusiasts and DIY mechanics who want to upgrade their GM Gen III & IV LS V8 engines. It’s ideal for anyone looking to improve oil flow and protect their engine from dirty oil.
Ready to Purchase?
7. EVRBUL Engine Block Oil Gallery Plug Billet Aluminum Rear Passage Plug Oil Diverter Barbell Dumbbell Shaped Oil Galley Plug Compatible with GM Gen III & IV LS V8 Engine Replace# 12573460
The EVRBUL Engine Block Oil Gallery Plug is a must-have upgrade for your GM Gen III & IV LS V8 engine. It’s made from 6061 aluminum billet, ensuring durability and heat resistance.
This oil diverter stops dirty oil from bypassing the filter, keeping your engine clean and efficient. It fits perfectly with many GM, Buick, Chevrolet, GMC, Hummer, and Pontiac models.
With CNC machining and FKM O-Rings, it ensures no leaks and smooth oil flow. The threaded hole makes removal easy, and the anti-aging material allows for reuse.
| Pros | Cons |
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Perfect For:
This EVRBUL Engine Block Oil Gallery Plug is perfect for GM Gen III & IV LS V8 engine owners who want to ensure cleaner oil and longer engine life. It’s a direct replacement for part numbers like 12573460, offering a durable billet aluminum build with precise CNC machining and FKM O-rings to prevent any unfiltered oil from reaching your engine.
Ready to Purchase?
8. BOXOB 2pcs Barbell Oil Diverter Tool, Aluminum Alloy High Performance Oil Gallery Plug Parts with Screws, for LS Gen III/IV Engines L92/99/33, LS1/2/3/6, LQ4/9, 4.8/5.3/5.7/6.0/6.2L (Black)
The BOXOB 2pcs Barbell Oil Diverter Tool is designed for high-performance vehicles and engine dependability. It’s made from aluminum alloy for strength and durability.
This product is compatible with LS/Vortec engines. It prevents oil leaks with three O-rings. The CNC precision crafting ensures heat resistance.
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Perfect For:
This product is perfect for car enthusiasts, truck owners, and everyday drivers with LS engines needing dependable oil flow and leak-proof performance. It suits those upgrading or maintaining high-performance engines like LS1, LS3, LQ4, and others in vehicles for towing, racing, or daily use.
Ready to Purchase?
9. OXCANO Billet Aluminum Oil Diverter Barbell & Front Gallery Plug Compatible with GM LS, LS1, LS2, LS3, LQ4 4.8/5.3/5.7/6.0/6.2L Engines w/Viton O Ring for Sealing
This product is a billet aluminum oil diverter barbell for GM LS engines. It fits LS1, LS2, LS3, LQ4, and others from 4.8L to 6.2L. A Viton O-ring ensures a tight, leak-proof seal.
Easy to install, but new users should seek an automotive specialist. Check compatibility with your engine using the product details or images.
Satisfaction guaranteed if it matches your setup. Contact us for help if unsure about fitment.
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Perfect For:
This OXCANO Billet Aluminum Oil Diverter Barbell is perfect for car enthusiasts and mechanics working on GM LS engines. It’s easy to install and fits Gen 3 and Gen 4 LS models, making it ideal for upgrades or repairs.
Ready to Purchase?
10. 3mirrors UPGRADE Billet Aluminum Oil Diverter Barbell w/DOUBLE O-rings, Oil Tube Hold Down, Front Gallery Plug Compatible with GM LS Engines, Better Sealing
Upgrade your GM LS engine with this billet aluminum oil diverter kit. It features double O-rings for superior sealing and an oil pickup tube hold down. Keep your oil clean and protected.
This kit offers better sealing than other options. The Viton O-rings prevent oil system pollution.
The tapered design boosts oil flow speed. Easily install it for engine safety.
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Perfect For:
This 3mirrors UPGRADE Billet Aluminum Oil Diverter Barbell is perfect for GM LS engine owners looking to prevent oil leaks and ensure engine safety with a superior sealing solution. It’s an ideal upgrade for those who want to maintain clean oil and avoid costly engine damage from low oil pressure.
Ready to Purchase?
Buying Guide
Upgrading your oil gallery plug boosts engine health. Stronger materials and better seals keep oil clean and flowing smoothly.
- Material Quality: Choose billet aluminum or 6061-T6 alloy for strength and heat resistance. These materials outlast brittle plastic and resist corrosion.
- Seal Design: Triple O-ring seals stop leaks better than double designs. Look for Viton or FKM O-rings to handle high temps and wear.
- Compatibility: Check if the plug fits your engine’s LS Gen III/IV or Honda CB specs. Match displacement (e.g., 4.8L-6.2L) and part numbers (e.g., 12573460).
- Installation Ease: Threaded M4x0.7 holes or included screws simplify setup. Direct replacements save time vs. custom fits.
- Durability: CNC-machined parts ensure precision. Anti-aging materials let you reuse plugs during maintenance.
- Performance Benefits: Oil starvation risks drop with barbell diverters. Improved flow reduces engine stress and dirty oil bypass.
- Kit Inclusions: Some sets bundle a pickup tube hold-down or bypass valve plug. Extra parts protect high-performance builds.