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Ensure proper oil galley sealing and accurate pressure monitoring on your GM LT Gen-V (2014 and up) engine with Earl’s Oil Pressure Adapter. Designed for applications where the OEM vacuum pump has been removed, this adapter plugs exposed passages in the oil galley or allows connection of an oil pressure gauge or sensor. Ideal for engine swaps, racing applications, or setups using Holley EFI systems such as Avenger, Terminator X, HP, or Dominator, it ensures reliable oil system function while maintaining a clean, professional installation.
Precision-machined from stainless steel with natural finish, this adapter provides durability, corrosion resistance, and compatibility with metric threads. It is a critical component for any high-performance or custom LT Gen-V build that removes the factory vacuum pump.
Features:
Plugs exposed oil galley passages when OEM vacuum pump is removed
Allows connection of oil pressure gauge or sensor
Ideal for engine swaps and high-performance applications
Precision-machined stainless steel construction for durability
Compatible with Holley EFI systems (Avenger, Terminator X, HP, Dominator)
Easy installation with metric 12mm x 1.75 threads
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You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
