Description
Practical value and everyday use
Oil Equipment Mfg 4171 Oil Tank Hinged Fill Cap is listed in Oil Filler Caps. For a practical buying decision, start with this source-backed point: Category: Replacement Parts / Caps / Oil Filler Caps.
The source also records: Prevents unauthorized entry. Use this additional stated detail to judge day-to-day usefulness and package value: 2″ NPT Female Thread.
Value-focused decision
Compare those stated features and included items with the current on-page offer and the exact quantity needed. No performance claim is added beyond the source product record.
Complete source-backed product details
Locking Fuel Oil Cap 2″ Female threads. Hinge cap with hole for your locking device.
Source product highlights
- 2″ NPT Female Thread
- Hasp Type top with lockable latch
- Protects your oil supply
- Prevents unauthorized entry
- Price of oil today needs protection




Jim Doster –
Terrific Product!!! We live in the Inner-City and are Black. Some neighbors put water down our oil fill pipe – cost the Landlord $$$thousands$$$ to pump out the tank, fix the furnace, not to mention we had no heat. This little device foiled the bigots from trying to run us out. The Landlord installed this cap on the oil fill pipe and we put OUR padlock on it – we’ve been warm ever since.
Joe Aresco –
This served its purpose. Very nice set up
michael fuce –
Didn’t fit and then they charge me shipping to return it nine bucks
Mandalorian –
After installing on my oil tank for the heater it began rusting by the next day. Spray painted and good for now, but will need to continue to check for corrosion.
Joseph Leon –
Perfict fit, fast shipping . Thank You , Joe.
Arthur Rescigno –
This cap slowed down the thief enough for me to catch him and tune him up, needles to say he will not be back.
Horselord –
This replacement fuel oil lid is perfect. It is heavy duty, solid and threads on tightly. Zero complaints.
Customer –
Stopped oil tank being drained slowly from theives