IMPCO AD1-28-1 Idle Diaphragm w/Gasket for 425 Mixer LPG Propane

Name: IMPCO AD1-28-1 Idle Diaphragm w/Gasket for 425 Mixer LPG Propane
SKU: AD1-28-1
Price: 49.28 USD
Availability: InStock

SKU: AD1-28-1

$49.28

In stock

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$49.28	0%
5–9	$46.82	5%
10+	$44.35	10%

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Available to order: 4.

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Product Description

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	AD1-28-1

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

Item Specifics

Field	Details
Brand	IMPCO
MPN / Part Number	AD1-28-1
Type	Idle Diaphragm Assembly
Application	LPG / Propane Carburetor & Mixer
Compatible Model	IMPCO Model 425
Material	Silicone
Includes	Gasket
Assembly	Idle Diaphragm Assembly
Country of Origin	USA
Condition	New / Unused
Quantity	1

IMPCO documentation identifies AD1-28-1 as the idle diaphragm assembly for the Model 425, and notes that the assembly includes the associated gasket. A current eBay listing also identifies AD1-28-1 as an IMPCO 425 mixer idle diaphragm.

Product Description

Genuine IMPCO AD1-28-1 Idle Diaphragm Assembly with Gasket

The IMPCO AD1-28-1 is an idle diaphragm assembly designed for compatible IMPCO Model 425 LPG/propane mixers and carburetors.

This replacement component is used in the idle-control section of the mixer and is intended for maintenance, repair, and rebuilding of compatible IMPCO 425 systems.

The assembly includes the gasket, making it convenient for replacement during service. IMPCO’s Model 425 parts documentation specifically lists AD1-28-1 as the idle diaphragm assembly.