If you’re maintaining a shallow or jet pump system, a rebuild kit can extend life and improve efficiency without replacing the entire unit. These five kits cover common 1/2 HP and 1 HP models and pair essential seals, impellers, and gaskets. They’re best for homeowners, small property managers, and professionals seeking cost-effective parts for routine maintenance or repairs.
| Product | Best For | Notes |
|---|---|---|
| Star Service Kit for 1/2 HP Shallow Well Jet Pump | Cast-iron shallow well jet pumps (Star ES05S, Flint & Walling EK05S) | Includes impeller, diffuser, motor shaft seal, diffuser gasket, and body gasket |
| SUNJIKA Pitcher Pump Repair Kit for Simmons 1160/PM500 | Traditional pitcher-style hand pumps | Includes lower valve leathers, cups, check valve weight |
| Red Lion Overhaul Kit for RJS-100-PREM | 1 HP shallow well jet pumps | Most common replaceables: O-rings, seals, impeller, volute, nozzle, venturi |
| Red Lion Overhaul Kit for RJS-50-PREM | 1/2 HP shallow well jet pumps | Similar contents tailored to 1/2 HP models |
| PACER 58-702EP-P S Series Rebuild Kit | Pacer S Series EPDM pumps | Includes volute, impeller, seal, and hardware |
Note: This table highlights typical compatibility and what each kit provides. Always confirm your exact model number before purchasing to ensure proper fit and function.
Star Service Kit for 1/2 HP Shallow Well Jet Pump
This service repair kit targets cast iron 0.5 HP shallow well jet pumps. It includes the pump impeller, diffuser, motor shaft seal (mechanical seal), diffuser gasket, and pump body gasket. It’s suitable for Star ES05S and Flint & Walling EK05S models, making it a direct option for homeowners with these units.
Best for: Homeowners with Star ES05S or Flint & Walling EK05S jet pumps needing a complete small-pump refresh. Choose this if your pump uses a mechanical shaft seal and you need a mixed parts kit.
Caution: This kit is model-specific. If you own a different brand or an incompatible model, parts may not align properly.
SUNJIKA Pitcher Pump Repair Kit for Simmons 1160/PM500
This pitcher pump repair kit is designed for Simmons 1160 and PM500 models. It includes lower valve leathers, leather cups, a cast iron check valve, and necessary screw accessories for installation. It provides a complete rebuild path for traditional hand pumps and extends pump life through wear-resistant components.
Best for: Owners of Simmons 1160/PM500 or similar pitcher-style hand pumps seeking a comprehensive rebuild kit. Better for long-term durability with cast-iron parts and reliable check valves.
Caution: Designed for specific pitcher pump models; compatibility with other hand pumps may be limited.
Red Lion Overhaul Kit for RJS-100-PREM
This overhaul kit is tailored for the Red Lion RJS-100-PREM 1 HP shallow well jet pump. It includes an O-ring, a mechanical seal kit (two pieces), an impeller, a volute, a nozzle, and a venturi. It’s ideal for a comprehensive refresh of a higher-capacity unit at a maintenance point, ensuring critical components are renewed in one purchase.
Best for: 1 HP shallow well pump owners who want a complete part refresh for the Red Lion RJS-100-PREM. Choose this if you need a broad set of common replacement components in one kit.
Caution: Not recommended for other brands or models; mismatches can affect performance.
Red Lion Overhaul Kit for RJS-50-PREM
This overhaul kit covers the 1/2 HP Red Lion RJS-50-PREM shallow well jet pump, including the most common replaceable components: an O-ring, a mechanical seal kit (two pieces), impeller, volute, nozzle, and venturi. It’s a solid option for mid-range capacity pumps requiring routine maintenance or part renewal.
Best for: 1/2 HP Red Lion users who want a targeted kit with essential components for common failures. Better for regular upkeep without buying individual parts piecemeal.
Caution: Specific to RJS-50-PREM; verify model compatibility to avoid fit issues.
PACER 58-702EP-P S Series Rebuild Kit
The PACER rebuild kit 58-702EP-P is designed for all S Series EPDM-fitted Pacer pumps with a 704-30 3-vane impeller, covering models such as SEB2PL, SE2PL, SE2AL, and SE2FL. It includes the essential internal components to rebuild a Pacer S Series Pump and is manufactured in the USA. This kit helps streamline maintenance for multiple S-series models in a single purchase.
Best for: Pacer S Series users needing a complete rebuild with a focus on EPDM compatibility. Choose this if your pump aligns with the included model range.
Caution: Ensure your pump’s impeller count and material match the kit’s specifications to prevent mismatched performance.
Buying Guide
What should I check before buying a rebuild kit?
Confirm the exact pump model and horsepower to ensure compatibility. Look for kits that include both mechanical shaft seals and impellers, plus gaskets and volutes when possible. A kit that covers seals, wear parts, and the housing components can reduce downtime and the need for additional purchases.
Is a complete overhaul better than replacing individual parts?
A complete overhaul kit is often more economical and convenient for mid-cycle maintenance. It ensures all critical components are renewed together, reducing the risk of mismatched parts and ensuring consistent performance after reassembly.
What are common signs that a rebuild kit is needed?
Frequent leaks, reduced flow, unusual noises, or loss of prime can signal worn seals, failing impellers, or degraded gaskets. If these symptoms appear, a rebuild kit is a practical first step before considering a full pump replacement.
How important is material compatibility?
EPDM, leather, and metal components have different wear profiles. EPDM is common for seals in many modern pumps, while leather is still used in traditional hand pumps. Choose a kit whose materials match your pump’s operating conditions and chemical exposure.
Can a DIY rebuild void warranties?
Rebuilding a pump with replacement kits can affect warranty terms. Check the manufacturer’s policy for your specific unit and ensure you retain any required documentation or proof of parts compatibility when performing repairs.
What about installation and testing?
Follow the kit’s included instructions and use proper torque on screws and seals. After reassembly, prime the system and test for leaks, prime retention, and steady water flow. Have a plan to address any immediate leaks or misalignments detected during initial startup.
Frequently Asked Questions
- What is the main purpose of a well pump rebuild kit?
To replace worn seals, bearings, gaskets, and impellers so the pump operates efficiently again without full replacement.
- Can I use a rebuild kit in multiple pump brands?
Most kits are model-specific. Always verify compatibility with your exact pump model before purchasing.
- How long does a typical rebuild take?
For a skilled technician, a standard kit installation can take a few hours; for DIYers with basic tools, plan for a half-day including testing.
- Do rebuild kits include all necessary components?
Most kits include essential parts such as seals, impellers, and gaskets. Some kits also include the volute and nozzle, depending on the model.
- Should I replace the entire pump with a rebuild kit?
If the pump is relatively old or heavily worn beyond seals and impellers, replacement may be more cost-effective in the long term.
- How do I avoid incorrect fittings?
Double-check part numbers, pump model, horsepower, and assembly directions. When in doubt, contact the seller or manufacturer for confirmation.
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