$ 24.95
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GM Engine Pre-Lube Adapter – 3/8" NPT | Motive Products #1138
Protect a fresh GM build from “dry start” damage with the Motive Products GM Pre-Lube Adapter (3/8" NPT). Thread this precision fitting into the factory oil-pressure sender port, snap on your Motive PowerFill™ or Power Bleeder hose, and pressurize the oil galleries before that first key-turn. A few pumps delivers clean oil to bearings, lifters, and cams—no cranking required.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| 3/8" NPT male thread | Direct fit for most small-block, big-block, and LS-series GM engines that use a 3/8" NPT pressure-sender port. |
| Quick-connect brass coupler | Attaches in seconds to any Motive PowerFill/Power Bleeder tank; swiveling design prevents hose twist. |
| Anodized aluminum body | Lightweight, corrosion-resistant, and safe for all engine oils. |
| One-person operation | Pressurize to 20–30 psi and watch fresh oil flow—no helper, no mess, no dry friction. |
| Reusable shop tool | Ideal for engine builders, machine shops, fleet garages, and DIY enthusiasts rebuilding classic Chevy or modern LS powerplants. |
Whether you’re firing up a crate 350, a rebuilt 454, or a high-revving LS3, this GM pre-lube adapter gives your new bearings the oil cushion they need for a safe, worry-free first start.
Fits 3/8" NPT sender ports—verify thread size on non-GM or aftermarket blocks before ordering.
WARNING: Reproductive Harm - www.P65Warnings.ca.gov