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Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B

Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B is a compact metal hydraulic pump priced at $83.99, designed for precise fluid control in model steam engines. Ideal for hobbyists maintaining M30, M31, and S10 series engines.

$83.99

● In stock

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Key features

  • Metal construction for durability
  • Fits M30, M30B, M31, M31B, S10, S10B engines
  • 7.5mm piston diameter, 13mm stroke
  • 1/4 x 40 TPI thread connection
  • Compact 7.3 x 2.2 x 4.2cm size
  • Lightweight at 106g
  • Includes protective carton packaging

Pros

  • +Durable metal build
  • +Exact model compatibility
  • +Precise hydraulic control
  • +Compact and lightweight
  • +Ready for immediate use
!

Cons

  • Manual operation only
  • Limited to specific engine types
  • No mounting hardware included

About Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B

What is Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B?

The Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B is a precision-engineered component designed to regulate hydraulic fluid flow between the boiler and engine in miniature steam systems. Constructed from durable metal, this pump ensures reliable operation in small-scale steam engine setups, particularly those in the M30, M30B, M31, M31B, S10, and S10B series. With a compact design and manual operation, it allows users to maintain consistent pressure and performance during operation, making it essential for model engineering enthusiasts and DIY steam engine builders.

Key features

  • Material — Durable metal construction for long-term use.
  • Compatibility — Fits M30, M30B, M31, M31B, S10, S10B steam engines.
  • Compact Size — Measures 7.3 x 2.2 x 4.2cm for easy integration.
  • Precision Specs — 7.5mm diameter piston with 13mm stroke length.
  • Thread Standard — 1/4 x 40 TPI screw for secure connections.
  • Lightweight — Net weight of 106g for minimal system load.
  • Ready to Use — Includes single pump in protective carton packaging.

Who is Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B for?

This hydraulic pump serves model engineers, steam engine hobbyists, and DIY builders working with M30, M31, or S10 series miniature steam systems. It's ideal for those restoring, maintaining, or assembling functional steam models that require manual hydraulic regulation. Suitable for users aged 14 and up, it supports educational and recreational applications in physics, mechanics, and engineering projects.

How does Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B compare?

Compared to generic hydraulic pumps, this model offers exact compatibility with M30, M31, and S10 series steam engines, ensuring proper fit and function. Its metal build outperforms plastic alternatives in durability and heat resistance, critical in steam environments. While some universal pumps may offer lower cost, they often lack the precise stroke and thread specifications needed for reliable performance in precision steam models.

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Best use cases

  • Restoring M30 series steam engines
  • Maintaining S10B model hydraulic systems
  • DIY steam engine builds
  • Educational engineering projects
  • Precision pressure regulation
🛒

Is Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B right for you?

This pump is best for model engineers and hobbyists working with M30, M31, or S10 series steam engines. Suitable for intermediate builders with basic mechanical skills. Not ideal for automated systems. Consider only if you need exact compatibility—alternatives may suit broader applications but lack precision fit.

How it compares: Compared to universal or plastic hydraulic pumps, this metal piston pump offers superior durability and exact fit for M30/S10 series engines, ensuring reliable performance in high-temperature steam environments where generic models may fail.

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Frequently Asked Questions

What is the thread size of the hydraulic pump?

The pump features a 1/4 x 40 TPI screw thread, designed for secure and leak-resistant connections in compatible steam engine systems.

Does this pump fit S10 and M30B engines?

Yes, this piston manual hydraulic pump is compatible with S10, S10B, M30, M30B, M31, and M31B steam engine models for reliable fluid transfer.

How does the manual hydraulic pump operate?

It operates by hand-driven piston action, moving hydraulic fluid between the boiler and engine to regulate pressure and ensure smooth steam engine function.

Is the pump made of metal or plastic?

The pump is constructed entirely of metal, providing heat resistance and durability essential for use in steam engine applications.

Can this pump be used in other engine types?

It is specifically designed for M30, M31, and S10 series engines. Use in other systems may require adapters and is not guaranteed for performance.

How much does Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B cost?

Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B is $83.99 at EngineDIYShop. Prices may change — click through to EngineDIYShop for the latest.

Is Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B in stock at EngineDIYShop?

Yes, Piston Manual Hydraulic Pump for Steam Engine M30/M30B/M31/M3B/S10/S10B is currently in stock at EngineDIYShop.

Are there coupon codes for EngineDIYShop?

Yes — Love Those Deals currently tracks 4 active EngineDIYShop coupons. See the coupons section on this page to copy a code before checkout.

Specifications

SKU
3405748
Last updated May 14, 2026