Blackmer 871185 Diaphragm Assembly TXD3E-AVA LP Gas Propane Pump

SKU: 871185

Weight	7 lbs
Dimensions	14 × 10 × 6 in
Condition	New
Manufacturer Part Number	871185
Brand	Blackmer

$1,181.14

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	$1,181.14	0%
5–9	$1,122.08	5%
10+	$1,063.03	10%

Estimate for this quantity before shipping. Tax display follows store settings. Existing cart quantities can increase the tier. Only one offer applies; a coupon replaces automatic pricing. For 20+ units, contact support for a quote.

Available to order.

Bulk quantity & quote

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Specifications & product details

Blackmer 871185 Diaphragm Assembly – TXD3E-AVA LP Gas Propane Pump OEM

The Blackmer 871185 Diaphragm Assembly is a genuine OEM replacement part designed specifically for TXD3E-AVA Blackmer propane and LP gas pumps. This factory-assembled diaphragm plays a critical role in maintaining proper pressure control and safe pump operation during propane transfer.

Commonly used in bulk plants, bobtail trucks, cylinder filling stations, and industrial LP gas systems, this diaphragm assembly is ideal for scheduled maintenance, pump rebuilds, or emergency repairs.

Key Features & Benefits:

Genuine Blackmer OEM diaphragm assembly
Designed for TXD3E-AVA pump models
Reinforced elastomer diaphragm with steel center hardware
Ensures consistent pressure and reliable pump operation
Ideal for LP gas & propane service applications
Ready-to-install factory assembly

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.

The 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 that 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.

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

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