Finding a reliable snow plow pump assembly is essential for fast, dependable winter clearing. This guide highlights top 5 pump and motor assemblies that fit common 12V snow plow setups. Each option targets different buyer needs—from Do-It-Yourself replacements to OEM-adjacent replacements for Meyer, Western, and Fisher Uni-Mount plows. The listed products emphasize compatibility, ease of installation, and practical performance considerations.
| Product | Brand | Type |
|---|---|---|
| Charging Systems Snow Plow Motor | Charging Systems | 12V CW Motor |
| RAREELECTRICAL 12V Clockwise Snow Plow Motor | Rareelectrical | 12V CW Motor |
| RAREELECTRICAL Snow Plow Hydraulic Pump Motor | Rareelectrical | Hydraulic Pump Motor |
| RAREELECTRICAL Snow Plow Hydraulic Pump Motor for Fisher Western Uni-Mount | Rareelectrical | Hydraulic Pump Motor |
| The ROP Shop New Snow Plow Pressure Gear Pump | The ROP Shop | Pressure Gear Pump |
Charging Systems Snow Plow Motor: 12V CW Replacement

Best for classic 12V snow plow setups requiring a direct motor replacement. The Charging Systems unit is listed as a third-party replacement part compatible with multiple OEM numbers, including 46-4175 and 21500. It is suitable for buyers seeking a straightforward motor swap without changing hydraulic components. The device is designed for CW rotation and insulated grounding for safety.
Who it’s best for: DIYers replacing worn-out plow motors on older Fisher, Western, or similar systems who want a like-for-like replacement without altering hydraulics. Why selected: broad OEM cross-compatibility helps ensure fitment across many units.
Caution: Verify OEM part numbers from your original unit to confirm fitment, as cross-compatibility can vary by model. This is a motor replacement, not a full hydraulic pump kit.
RAREELECTRICAL 12V Clockwise Snow Plow Motor

Better for Meyer and Prestolite implementations needing a 12V CW motor with specific shaft and terminal arrangements. This unit lists compatibility with multiple OEM numbers and uses a 15mm shaft and 5/16-24 terminals, matching several common Meyer and Prestolite assemblies. It includes a double-ball-bearing design for endurance and is suitable where a direct motor swap is required without altering pump components.
Who it’s best for: Plow owners with Meyer or Diamond quick-lift configurations that demand precise shaft dimensions and common replacement references. Why selected: strong cross-reference support for Meyer, Prestolite, and Diamond pump assemblies.
Limitations: Verify the exact OEM number on your plow to avoid misfit, since some cross-references cover broad model ranges rather than a single unit.
RAREELECTRICAL Snow Plow Hydraulic Pump Motor (Meyer/ Diamond)

Designed for Meyer E57/E60 quick-lift systems and Diamond plow pumps, this motor provides a 12V CW output with a 15mm slotted shaft and 4.5-inch frame dimensions. It’s a strong option when a hydraulic pump motor replacement is needed without changing the entire pump housing. It’s commonly paired with 46-4196 and Mue-6209 references.
Who it’s best for: Buyers with Meyer or Diamond quick-lift plows seeking a compatible hydraulic pump motor that matches the shaft and mounting footprint. Why selected: targeted compatibility with popular Meyer/Prestolite pump configurations and Diamond lift systems.
Caution: Confirm the OEM part numbers from your unit to ensure fitment, as cross-references may span several model years.
RAREELECTRICAL Fisher Western Uni-Mount Hydraulic Pump Motor

This motor targets Fisher Western Uni-Mount plows with a 12V DC supply and a 1.7kW rating, offering a 15mm shaft and a double-ball-bearing design for reliability. It cross-references many part numbers, making it a practical option when replacing an older Fisher Western pump without reconfiguring the hydraulic circuit. It is compatible with multiple OEM references such as A5819 and 21500.
Who it’s best for: Fisher Western Uni-Mount owners needing a direct motor substitute that aligns with common OEM cross-references. Why selected: comprehensive cross-reference support and a fit for Uni-Mount hydraulic systems.
Caution: Ensure the exact OEM number matches your unit to avoid incompatibility, as Uni-Mount models can vary by year and variant.
The ROP Shop Snow Plow Pressure Gear Pump Assembly

This unit is a complete snow plow pressure gear pump assembly, designed to fit Meyer Diamond E-46, E-47, and E-47H blades. Replacement includes the pump blade assembly with gasket, filters, O-rings, bolts, washers, and installation instructions. It’s ideal for those replacing a worn pump kit without rebuilding the hydraulic valve body.
Who it’s best for: Buyers needing a full gear pump replacement kit for Meyer Diamond quick-lift systems. Why selected: ready-to-install kit with all essential components shown in standard installation imagery.
Limitation: Kit contents are shown in the listing images; verify you receive all listed components before starting installation.
Buying Guide: Key Considerations for Snow Plow Pump Assemblies
- Compatibility: Cross-reference OEM part numbers from your unit to ensure you select a pump or motor that fits your plow’s model and year.
- Power and Voltage: Most 12V systems use CW (clockwise) motors or pumps. Confirm rotation direction and power rating to match your hydraulic configuration.
- Footprint and Shaft: Verify shaft diameter, length, and mounting footprint (e.g., 15mm shaft, 4.5-inch frame) to avoid misfits.
- Complete Kits vs. Individual Parts: Depending on wear, a complete pump kit (with gaskets, O-rings, filters) can reduce installation time compared to swapping only the motor.
- Wiring and Grounding: Ensure the ground and terminal connections match your unit’s wiring harness to prevent electrical issues.
- Brand and Cross-Reference Support: Brands like Rareelectrical and The ROP Shop offer broad OEM cross-references, which can simplify finding replacements across multiple plow brands.
Frequently Asked Questions
- What is a snow plow pump assembly?
A snow plow pump assembly includes the motor or hydraulic pump, and may include related hardware or gears, used to raise, lower, or angle the plow blade.
- How do I know which part fits my plow?
Check the OEM part numbers on your current pump or motor and compare them with the replacement’s cross-reference list. Manufacturer manuals and parts diagrams can help verify compatibility.
- Is a full pump kit better than replacing just the motor?
For older units, a full kit with seals, gaskets, and filters can prevent leaks and extend life, whereas a motor-only replacement suits units with intact hydraulics.
- What installation considerations matter?
Ensure correct shaft size, mounting pattern, electrical connections, and rotation direction. Improper alignment or wiring can cause premature failure.
- Can I mix brands for a replacement?
Compatibility varies; while some cross-references cover multiple brands, confirm shaft, voltage, and mounting compatibility before mixing parts from different manufacturers.