Fuel Transfer + Lubrication - JohnDow Flexible Oil Gun

JOHNDOW FLEXIBLE OIL GUN

$89.95

Product variants

$ Save 3% with ACH / Wire Payment — call for details

Authorized Online Dealer direct manufacturer relationship
No Sales Tax outside PA where applicable
Authorized Dealer Price Match verification required
Fast Delivery some products may have lead times
Manufacturer Warranty included with purchase
Questions? +1 (855) 498-2147

Precision Oil Dispensing - John Dow Automatic Oil Gun with Flexible Spout (JD-3940)

Professional-Grade Fluid Management Tool for Automotive Applications

John Dow flexible oil gun with automatic tip

This automatic oil gun delivers precise fluid dispensing for mechanics, technicians, and automotive professionals who need reliable lubrication equipment. The flexible spout design allows you to reach tight spaces and difficult angles while maintaining full control over oil flow.

Key Benefits for Professional Use

Secure Operation Control - The integrated handle lock prevents accidental discharge and unintended oil flow, protecting your workspace and ensuring safe operation during extended use sessions.

Enhanced Reach and Versatility - The flexible spout extension allows access to confined spaces, hard-to-reach fittings, and awkward angles that rigid dispensers cannot handle effectively.

Automatic Flow Management - Features an automatic tip that regulates oil delivery for consistent, controlled dispensing without manual pressure adjustments or constant monitoring.

Perfect Applications

Ideal for automotive maintenance professionals and shop technicians who need:

Lubrication of hard-to-reach grease fittings and zerk nipples
Oil dispensing in tight engine compartments and machinery spaces
Precise fluid delivery for automotive repair and maintenance tasks
Professional-grade oil gun performance in commercial shop environments

Technical Specifications

John Dow JD-3940 Oil Gun Specifications
Model Number	JD-3940
Tip Type	Automatic
Safety Features	Handle lock for secure operation
Weight	1.5 lbs
Inlet Connection	1/4" NPT
Maximum Pressure	Up to 6700 psi
Spout Type	Flexible extension

Get Professional Oil Dispensing Control Today

Join thousands of automotive professionals who trust John Dow flexible oil guns for reliable, precise fluid management. This automatic oil gun with flexible spout delivers the control and versatility your shop needs.

Order your JD-3940 oil dispensing tool now for immediate shipping!

Frequently Asked Questions

How does this compare to rigid oil guns?

The flexible spout provides significantly better access to confined spaces and awkward angles that rigid dispensers cannot reach. The automatic tip also eliminates the need for manual pressure control, making it more efficient for extended use.

What type of oil fittings does this work with?

This oil gun dispenser works with standard grease fittings, zerk nipples, and most automotive lubrication points. The 1/4" NPT inlet connection ensures compatibility with standard shop air systems.

Is the handle lock feature reliable for shop use?

Yes, the handle lock mechanism is designed for professional environments and prevents accidental discharge during transport or storage. This safety feature is essential for maintaining clean workspaces and preventing oil spills.

Can this handle high-pressure applications?

Absolutely. This oil delivery gun develops up to 6700 psi, making it suitable for demanding automotive and industrial lubrication tasks that require high-pressure oil dispensing.

About the Brand

Johndow Industries

View All Johndow Industries Products

Garage Supply Guys Frequently Asked Questions

If something's not working out, just let us know. Keep in mind that some items might have a restocking fee. Check the product page for the specifics.

No worries, we've got you covered. We can send replacement parts or arrange for a new delivery. Just make sure to inspect everything when it arrives and give us a heads up right away if something's off.

All the details are at the bottom of our site under Shipping & Return Policy. You'll find everything about returns, freight damage, and any brand-specific rules.

Most larger items like car lifts and heavy equipment ship free, but depending on the brand there might be freight costs. Smaller items almost always have shipping fees via UPS, USPS, FedEx, etc. We'll show you any extra costs before you check out.

Shipping estimates are just that — estimates, and they're not guaranteed. Weather, freight delays, and carrier issues can throw things off, especially with bigger items. If you're on a tight timeline for installation, it's smart to give yourself some wiggle room.

Yep! Once it ships, we'll email you the tracking info so you can keep tabs on your delivery and plan accordingly.

We always send tracking info once your order ships. If it's been more than five business days and you haven't heard anything, just shoot us a message at support@garagesupplyguys.com or hit us up through the Contact Us page. We'll figure out what's going on.

Make sure whatever you're buying will actually fit your space. That means checking ceiling height, floor space, power requirements, and whether freight delivery can even get to your location. Trust us, it's way easier to confirm these details upfront.

Read through the product details carefully, especially for heavy or specialized items. If you're not sure about fit, shipping, installation, or anything else, just ask. We'd rather help you get it right the first time.

You'll get a confirmation email right away once you place your order. For most items like car lifts, parts, and shop tools, we'll have them shipped out within five business days if they're in stock. This goes for all major brands and replacement parts.

We don't offer installation services ourselves, but we can put you in touch with qualified installers in your area who you can work out pricing with directly. We can also handle this for you after your purchase.

Just reach out to us after your purchase and we'll connect you with trusted installers in your area. You can negotiate pricing and scheduling directly with them, or we can help coordinate the whole process for you.

Some items can be installed by experienced DIYers, but larger equipment like car lifts typically require professional installation for safety and warranty reasons. Check the product specifications and manufacturer requirements before deciding.

Yes! We're authorized dealers for all the major brands we carry. This means you get full manufacturer warranties, genuine parts, and proper support. You can always verify our dealer status directly with the manufacturer if you'd like.

It means you're getting the real deal - genuine products with full manufacturer warranties, access to official support, and the peace of mind that comes with buying from a legitimate dealer. No gray market products or void warranties here.