Century Fuel D1-25 Diaphragm for CA425 AV SIL Propane LP Gas Mixer Replacement

SKU: D1-25

Weight	1.5 lbs
Dimensions	8 × 8 × 8 in

$47.20

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$47.20	0%
5–9	$44.84	5%
10+	$42.48	10%

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Century Fuel D1-25 Diaphragm for CA425 AV SIL Propane LP Gas Mixer Replacement

Specifications & product details

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

For engine fuel-system service parts, match the existing mixer, regulator or fuel lock before selecting the replacement.

Product type	Engine fuel-system components
Part / SKU	D1-25

What to check before ordering

Record the host-component model and the exact service-part reference.
Check the fuel, operating requirements and specified seal or diaphragm option.
Use qualified engine-fuel service personnel and the corresponding service instructions.

Service reminder: Check the package scope: a spring or diaphragm is an individual service component, not a complete regulator or fuel-conversion kit.

Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.

Product help & manufacturer resources

Explore this product guide · Shop this product group · Ask Regions Supply about this part

Overview

The Century Fuel D1-25 Diaphragm is an OEM replacement component designed for the CA425 AV SIL carburetor and fuel mixer system. Built from high-grade silicone, this diaphragm ensures reliable performance and long-lasting durability in propane, LP gas, and natural gas applications.

Key Features

OEM diaphragm for Century Fuel CA425 AV SIL mixersMade from durable silicone for extended service lifeEnsures proper regulation and fuel-air mixture
Designed for propane, LP gas, and natural gas engines
Easy to install as a direct-fit replacement

Applications

Propane & LP Gas Fuel MixersCA425 Carburetor and Mixer SystemsNatural Gas Conversion Engines
Industrial and Commercial Fuel Systems

Specifications

Brand: Century FuelPart Number (MFG#): D1-25
Compatible
Model: CA425 AV SIL
Material: Silicone (AV SIL)

Condition

Brand NewThis Century Fuel OEM diaphragm is the trusted replacement part for maintaining the efficiency, safety, and reliability of propane and natural gas fuel mixer systems.

Product details

Part / SKU	D1-25

Package includes

Century Fuel D1-25 Diaphragm for CA425 AV SIL Propane LP Gas Mixer Replacement

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Shipping & availability

Availability may include our inventory and supplier sources. Listed stock does not by itself confirm immediate dispatch. Ask us to confirm a ship date before ordering for time-sensitive work.

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