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402M | Bronze Flexible Impeller Pump

The Bronze Rubber Impeller Pump Model 402M is a high-performance, durable pump specifically designed for marine engines, including Chevrolet and John Deere blocks. This pump is renowned for its robust construction, efficient operation, and adaptability to various engine types, making it an essential component for marine and industrial applications. Its advanced features ensure reliable performance, even in the most demanding environments.

402M models are designed for Daytona Marine Engine using Chevrolet Blocks NO 327 and 427. Designed for American Marine LTD. Using John Deere Block NO JD6404 DR-15 and GMC Block Toroflow 63701893. Adaptable to other engines using these blocks.

Advantages:

  • Durability: Constructed from high-quality materials, the pump offers long-lasting performance and resistance to corrosion, making it ideal for marine and industrial applications. 

  • Efficiency: Designed for optimal flow rates and pressure, the pump provides reliable and efficient operation, ensuring your systems run smoothly. 

  • Versatility: The pump is adaptable to various engine types and applications, making it a versatile choice for multiple industries. Its compatibility with different fluids and temperatures enhances its utility. 

  • Ease of Maintenance: Features like the reversible wearplate and easy impeller replacement reduce maintenance time and costs, ensuring the pump remains in optimal working condition with minimal effort. 

  • Reliability: Equipped with advanced seals and bearings, the pump ensures smooth operation and prevents leaks, providing peace of mind and consistent performance. 

  • Bronze Construction:
    The pump's body is made from high-quality bronze, providing excellent resistance to corrosion and wear. This ensures longevity and reliable performance, even in harsh marine environments. 

  • Reversible Wearplate:
    The wearplate can be reversed to extend the pump's lifespan, reducing maintenance costs and downtime. 

  • Teflon® Barrier Seals:
    These seals protect the ball bearings from contaminants, ensuring smooth operation and extending the life of the bearings. The use of Teflon® also enhances the pump's resistance to chemicals and high temperatures. 

  • Mechanical Carbon Ring Seal:
    This seal, with a ceramic face, provides a reliable barrier against leaks, maintaining pressure and preventing fluid loss. 

  • Sealed Ball Bearings:
    The pump features two sealed ball bearings, spaced to maximize load capacity and ensure stable, efficient operation. These bearings are designed to handle high loads and reduce friction, contributing to the pump's overall efficiency. 

  • Large Vent & Drain Openings:
    These openings separate the seal and bearing areas, facilitating easy maintenance and preventing contamination. This design feature helps in maintaining the pump's performance and longevity. 

  • Shaft Slinger:
    An additional protective feature for the bearings, the shaft slinger helps to prevent contaminants from reaching the bearings, further enhancing durability. 

  • Neoprene Impeller:
    The impeller is made from neoprene, which is compatible with a wide range of liquids, including fresh and saltwater solutions. This material ensures efficient pumping and long service life. 

  • High Chrome Nickel Stainless Steel Shaft:
    The shaft is made from high chrome nickel stainless steel, offering superior strength and resistance to wear and corrosion. This ensures the pump can handle demanding applications without compromising performance. 

  • O-Ring Seal:
    The O-ring seal between the pump body and cover eliminates gasket problems, ensuring a secure and leak-free connection. This design feature simplifies maintenance and enhances reliability. 

  • Easy Impeller & Cam Replacement:
    The impeller and cam can be easily replaced, simplifying maintenance and reducing downtime. This feature ensures the pump remains in optimal working condition with minimal effort. 

 

Maximum Flow Rate

Up to 36 GPM at 3000 RPM (up to  8.17 m³/h at 3000 RPM)

Pressure Range

Up to 34.6 PSI (up to 2.39 bar)

Temperature Range

40°F to 140°F (4.4°C to 60°C)

Materials

Bronze construction, neoprene impeller, high chrome nickel stainless steel shaft

Weight

Detailed weight specifications available upon request

Suction Lift

Up to 15 ft when the impeller is wet (up to 4.57 meters when the impeller is wet)

Compatibility

Suitable for various marine engine blocks, including:
• Chevrolet 327 and 427
• John Deere JD6404 DR-15
• GMC Toroflow 63701893

 

Exploded View 402M (2)

 

Item

Part Name

Quantity

OB402M

OB402M-03

1

Body

Qty. 1

OB6658

OB6658

2

Cover

Qty. 1

OB6659

OB6659

3

Shaft

Qty. 1

OB6637

OB6637

*4

Impeller

Qty. 1

OB6603

OB6603

5

Cam

Qty. 1

OB6606

OB6606

*6

Seal Assy.

Qty. 1

OB32230

OB32230

7

Lip Seal

Qty. 2

OB6609

OB6609

8

Bearing

Qty. 2

OB5928

OB5928

9

Snap Ring

Qty. 1

OB5925

OB5925

10

Snap Ring

Qty. 2

OB5926

OB5926

11

Washer

Qty. 1

OB6631

OB6631

12

Key

Qty. 1

OB5475

OB5475

*13

O-Ring

Qty. 1

OB6684

OB6684

14

Screw

Qty. 6

OB6775

OB6775

15

Screw

Qty. 1

OB7300-62

OB7300-62

16

Washer

Qty. 3

--

OB5016

17

Pulley

Qty. 1

--

OB6661

18

Key

Qty. 1

OB6567

OB6567

19

Bush’g

Qty. 1

--

OB6931

20

Pin

Qty. 1

OB6685

OB6685

21

Plate

Qty. 1

OB6635

OB6635

22

Screw

Qty. 3

--

OB6958

-

Repair Kit

-

OB10653

OB10653

* Repair Kit contains items 4, 6 & 13 and seal installation tools: OB6751 pin (to occupy keyway and OB6752 bushing to protect seal from sharp edges)

 

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