GM LS Billet Aluminum Engine Oil Filter Bypass Valve Delete Plug
GM LS Billet Aluminum Engine Oil Filter Bypass Valve Delete Plug
SKU: SKU: 81081-3
In stock

Product Details
Features
- Replaces the factory oil filter bypass check valve in compatible GM LS Gen III/IV engines
- Billet aluminum construction; seals bypass passage to prevent unfiltered oil from reaching engine bearings and lifters
Description
GM LS Billet Aluminum Engine Oil Filter Bypass Valve Delete Plug
This billet aluminum oil filter bypass valve delete plug replaces the factory bypass check valve in compatible GM LS Gen III/IV engines. The factory bypass valve can open during oil pressure surges — particularly on cold startups — allowing unfiltered oil to reach engine bearings and lifters. This delete plug seals the bypass passage in the oil filter adapter housing, keeping only filtered oil in circulation.
Use it during an oil filter change on compatible LS engines where the bypass valve is located in the oil filter adapter housing. Confirm engine generation, adapter housing style, and bypass valve location before installation. Not compatible with bypass valves located in the oil pan.
Specs
| Material | Billet Aluminum |
| Location | Oil Filter Adapter Housing |
| Quantity | Sold individually |
Engine Fitment
COMPATIBLE WITH
CHEVROLET SMALL BLOCK V8 GEN. III/IV (LS BASED)
• 4.8 L / 293 in3
• 5.3 L / 325 in3
• 5.7 L / 346 in3
• 6.0 L / 364 in3
• 6.2 L / 376 in3
Q&A
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
GM LS Billet Aluminum Engine Oil Filter Bypass Valve Delete Plug
This TSP oil filter bypass valve delete plug is a small but simple improvement you can make on our LS engine.
COMPATIBLE WITH
CHEVROLET SMALL BLOCK V8 GEN. III/IV (LS BASED)
• 4.8 L / 293 in3
• 5.3 L / 325 in3
• 5.7 L / 346 in3
• 6.0 L / 364 in3
• 6.2 L / 376 in3
Quantity: Sold individually