Opens in a new tab
Free standard shipping on eligible US orders $500+

Blackmer 261959 Rotor & Shaft Assembly GNX(H)4 Propane LP Pump OEM

SKU: 261959
Weight 55 lbs
Dimensions 24 × 10 × 8 in

$8,042.70

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
QuantityUnit priceSaving
1–4$8,042.700%
5–9$7,640.575%
10+$7,238.4310%

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

Enter the total quantity you need. We will confirm availability and a quote before you order.

Request this quantity →

Need a firm ship date? Availability may include supplier stock. Confirm availability before ordering for time-sensitive work.

Processing times & shipping information

Overview

Blackmer OEM Rotor & Shaft Assembly – Part #261959 (GNX(H)4)The Blackmer 261959 Rotor and Shaft Assembly is a genuine OEM replacement assembly designed specifically for Blackmer GNX(H)4 sliding vane pumps used in propane, LP gas, and industrial fuel transfer systems.This factory-balanced rotor and shaft assembly is a critical internal component responsible for vane alignment, rotational stability, and overall pump performance. It is typically replaced during major pump rebuilds, catastrophic failures, or high-hour overhauls.Key Benefits &

Applications

Designed for Blackmer GNX(H)4 propane transfer pumpsComplete rotor & shaft assembly (OEM matched components)Ensures proper vane operation and pump efficiencyHeavy-duty construction for continuous industrial serviceIdeal for bulk plants, bobtail fleets, terminals, and LPG facilitiesCompatibility:Fits Blackmer GNX(H)4 sliding vane pumpsUsed in propane, LP gas, and industrial fuel serviceCommonly replaced alongside vanes, bearings, seals, and heads during full rebuilds⚠️ Professional installation recommended. Verify compatibility before ordering.Trusted by propane professionals and industrial gas technicians nationwide.

Product details

Part / SKU 261959

Package includes

  • Blackmer 261959 Rotor & Shaft Assembly GNX(H)4 Propane LP Pump OEM

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

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.

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.

Shipping methods and charges appear at checkout where available. Freight, oversized and specially handled items may require a quote. See our Shipping Policy for processing periods, restrictions and delivery information.

Explore related products

More products in this category. Compare specifications and fit for your application.