Engineered Controls ACME Cap 1-3/4″ F Thread Propane LP Gas Plug – Cyclolac

SKU: 3174-9p

Weight	0.313 lbs
Dimensions	9 × 7 × 2 in
Condition	New
Manufacturer Part Number	MFG# 3174-9p
Brand	Engineered Controls

$7.85

In stock — available to order.

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Same-item volume pricing

Quantity	Unit price	Saving
1–4	$7.85	0%
5–9	$7.46	5%
10+	$7.07	10%

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Engineered Controls ACME Cap 1-3/4" F Thread Propane LP Gas Plug – Cyclolac

Specifications & product details

Engineered Controls 1-3/4″ Female ACME Cap – Yellow LP Gas Thread Protector (MFG# 3174-9p)This Engineered Controls ACME cap (MFG# 3174-9p) is a durable, molded safety cap designed for propane (LP) gas valves using standard 1-3/4″ female ACME threads. Made from tough Cyclolac plastic, this cap helps protect internal valve parts and threaded connections from dirt, moisture, and impact.Ideal for use on DOT cylinders, bulk LP tanks, and transfer hoses, this cap is engineered to safely contain normal tank pressure and must remain on when the valve is not in service.✅ Thread Size: 1-3/4″ Female ACME✅ Material: Resilient Cyclolac (Industrial Plastic)✅ Color: Safety Yellow✅ Use Case: Tank, cylinder, or hose end valve protection✅ Designed For: LP gas systems only✅ Compatible With: Rego valves, DOT fill valves, Type 1/ACME propane fittingsUse with other emergency shutoff kits, fill valves, and propane tank accessories for full compliance.Important Notice ? Propane Parts, Accessories, and Regulators:This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.Seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.By purchasing this item, the buyer acknowledges they have read, understood, and agreed to these terms, and confirm that installation and use will be conducted by a properly licensed and qualified professional.

Features

Genuine Engineered Controls replacement ACME protective cap
Fits 1-3/4″ ACME Type 1 female thread
Manufactured from durable Cyclolac® engineering plastic
Bright yellow color for easy visibility
Helps prevent contamination of gas fittings
Protects threads from damage during storage and transport
Lightweight yet durable construction
Easy hand installation and removal
Resistant to normal outdoor conditions
Designed for propane (LP) gas equipment

Applications

Suitable for use with:

Propane (LP) gas cylinders
Type 1 ACME cylinder valves
BBQ propane tanks
RV propane systems
Forklift propane cylinders
Industrial LP gas equipment
Propane filling stations
Gas distributors
Storage and transport protection
Replacement protective cap for damaged or missing originals

Condition

New

New old stock (NOS) or unused surplus item.
May show minor cosmetic marks, shelf wear, or light handling from storage.
No cracks or damage observed.
Please review all photos for the exact item and condition before purchasing.

Compatibility & part-number help

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

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Shipping & availability

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