1. ATV Fuel Pumps For Sale
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  3. CUMMINS 4359134

CUMMINS 4359134 Barrel Plunger Tappet Fuel Pump Kit

5406130 Cummins 4359134 Oem Barrel Plunger Tappet Fuel Pump Kit

( Brand: Cummins ), ( Manufacturer Part Number: 4359134 ), ( Part Type: Fuel Tappet Pump )

Review CUMMINS Oem Barrel Plunger Tappet Fuel Pump Kit

The **Cummins 4359134 Barrel Plunger Assembly (5406130 Tappet) Fuel Pump Kit** is a precision-engineered component designed exclusively for Cummins inline six-cylinder diesel engines, specifically models that rely on the robust and reliable **B-series fuel injection system**. This meticulously crafted kit serves as a complete replacement solution for the internal fuel pump components, ensuring optimal performance, fuel efficiency, and longevity of the engine. The **barrel plunger assembly** is a critical part of the fuel pump, responsible for metering and delivering the precise amount of fuel under high pressure to the injectors, which is essential for smooth combustion and power output. The **5406130 tappet** is a finely machined component that works in tandem with the plunger to regulate fuel flow, reducing wear and preventing leaks that could lead to engine misfires or reduced power. Constructed from high-grade materials, including hardened steel and durable alloys, this kit is engineered to withstand the extreme pressures and temperatures inherent in diesel fuel injection systems, providing superior resistance to wear, corrosion, and fatigue. Whether used in heavy-duty trucks, marine applications, or industrial equipment, this fuel pump kit ensures reliable operation, helping to maintain the engine s performance and extend its service life. Ideal for mechanics and fleet managers seeking a direct replacement for worn or damaged components, this kit simplifies the repair process by offering a complete, pre-matched assembly that eliminates the need for sourcing individual parts. With its emphasis on precision engineering and compatibility with Cummins fuel injection standards, this barrel plunger and tappet kit is an indispensable upgrade for anyone looking to restore or enhance the efficiency of their Cummins-powered engine.

### **Pros and Cons of buying a Cummins 4359134 Barrel Plunger and 5406130 Tappet Fuel Pump Kit**

#### **Pros:**

1. **Compatibility with Cummins Engines** This kit is specifically designed for certain Cummins diesel engines, ensuring proper fitment and functionality. It is commonly used in models like the **ISX, ISB, and older 6BT/6CTA engines**, particularly those with **P7100 or P7101 fuel pumps**.

2. **Improved Fuel Delivery** The barrel plunger and tappet assembly are critical components in the fuel pump s operation. Worn or failing parts can lead to **poor fuel atomization, misfires, or reduced power**. Replacing these ensures smoother fuel delivery and better engine performance.

3. **Prevents Costly Engine Damage** A failing fuel pump can cause **carbon buildup, injector damage, or even engine failure** if fuel isn t delivered properly. Replacing these parts proactively can avoid more extensive (and expensive) repairs down the line.

4. **OEM Quality (or High-Quality Aftermarket)** If purchasing from a reputable supplier (such as **Cummins, Stanadyne, or a trusted aftermarket brand**), these parts are built to last. Some aftermarket kits are designed to match or exceed OEM durability.

5. **Easier Maintenance Access** The fuel pump is a modular component, meaning these parts can often be replaced without removing the entire pump from the engine. This reduces labor costs compared to a full pump replacement.

6. **Potential for Better Fuel Efficiency** A properly functioning fuel pump ensures optimal fuel metering, which can lead to **better combustion efficiency** and slightly improved fuel economy.

7. **Warranty Coverage (If Applicable)** Some suppliers offer warranties on these kits, providing peace of mind against premature failure.

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#### **Cons:**

1. **Cost** While not excessively expensive, the **barrel plunger and tappet kit** (especially if including labor) can be a **significant upfront investment** compared to minor repairs. Prices typically range from **$300 $800 depending on brand and engine model**.

2. **Labor-Intensive Installation** Replacing these parts often requires **removing the fuel pump from the engine**, which involves:

- Disconnecting fuel lines and electrical connections.

- Removing the pump bracket and possibly the governor linkage.

- Ensuring proper alignment and sealing of the new components.

- This may require **specialized tools** (e.g., fuel pump puller, torque wrench for precise adjustments).

3. **Potential for Counterfeit Parts** If purchasing from an untrusted source, there is a risk of receiving **low-quality or fake parts**, which could fail prematurely and worsen engine issues.

4. **Not a Permanent Fix for All Problems** If the **fuel pump itself is failing** (e.g., internal wear, governor issues, or electrical problems), replacing just the barrel plunger and tappet may not fully resolve the issue. A **full pump rebuild or replacement** may still be needed later.

5. **Skill Dependency** Improper installation (e.g., incorrect plunger seating, improper tappet adjustment, or fuel line leaks) can lead to **further damage or poor performance**. This repair is best left to **experienced diesel mechanics** unless the buyer has significant Cummins fuel pump experience.

6. **Downtime** Removing and reinstalling the fuel pump can take **4 8 hours of labor**, depending on engine accessibility. This means the vehicle or equipment will be **out of service** during the repair.

7. **Compatibility Issues with Modified Engines** If the engine has been **turbocharged, nitrous-installed, or otherwise modified**, the stock fuel pump may not handle the increased demands. In such cases, an **upgraded fuel pump** (e.g., Stanadyne 6000 series) may be necessary.

---

### **Conclusion**

The **Cummins 4359134 barrel plunger and 5406130 tappet fuel pump kit** is a **practical and cost-effective solution** for restoring proper fuel delivery in a failing Cummins fuel pump. It is particularly useful for **preventing further engine damage** and improving performance in engines showing symptoms like:

- **Hard starting**

- **Misfires or rough idle**

- **Reduced power or black smoke**

- **Fuel pump clicking but no fuel delivery**

However, the **labor cost, installation complexity, and potential for hidden issues** (such as a failing pump body) mean that this repair should be approached with caution. It is **not a one-size-fits-all fix** some engines may require a **full pump rebuild or upgrade** if the underlying pump is degraded.

### **Recommendation**

1. **Verify Compatibility** Ensure this kit matches your **exact Cummins engine model and fuel pump type** (e.g., P7100 vs. P7101). Consult a **Cummins repair manual or a trusted mechanic** before purchasing.

2. **Purchase from a Reputable Source** Buy from **authorized Cummins dealers, Stanadyne distributors, or well-reviewed aftermarket suppliers** (e.g., **Diesel Power Equipment, Diesel Parts Direct, or local Cummins specialists**) to avoid counterfeit parts.

3. **Consider a Full Fuel Pump Inspection** If the engine has **multiple symptoms** (e.g., fuel pump noise, governor issues, or repeated plunger failures), a **professional inspection** may reveal whether a **full pump rebuild or replacement** is needed rather than just the barrel and tappet.

4. **Budget for Labor** If not experienced with Cummins fuel pump repairs, **hire a certified diesel mechanic** to ensure proper installation. The labor cost is often the **biggest expense**, so factor it into your budget.

5. **Explore Upgrade Options (If Needed)** If the engine is **high-mileage or heavily modified**, consider investing in a **new or rebuilt fuel pump** (e.g., **Stanadyne 6000 series**) for long-term reliability.

6. **Document the Repair** Keep records of the **parts installed, mileage at time of repair, and any symptoms resolved**. This helps in diagnosing future issues and may be useful for warranty claims.

### **Final Verdict**

**Buy the kit if:**

- Your engine has **clear symptoms of barrel/plunger/tappet wear** (e.g., misfires, poor atomization).

- You are **confident in the compatibility** and have access to proper tools.

- You are **prepared for labor costs** and potential follow-up repairs.

**Avoid or reconsider if:**

- The **fuel pump itself is failing** (e.g., internal leaks, electrical issues).

- You are **not experienced with Cummins fuel pump repairs**.

- The engine has **other underlying issues** (e.g., bad injectors, turbo failure) that need addressing first.

For most **stock or lightly modified Cummins engines**, this kit is a **wise investment** to prevent further damage. However, **proper diagnosis and professional installation** are key to ensuring long-term success.

Details:

part #: 4359134 prices

  • $175.00-$1200.00

specifications fuepumintak:

  • brand: Cummins
  • mpn: 4359134
  • part type: Fuel Tappet Pump

returns fuepumintak:

  • policy: No Returns

seller fuepumintak:

  • city: Laredo, Texas
  • # reviews: 34
  • rating: 0.0%

payments fuepumintak:

  • money order
  • other
  • wallet: Google-pay
  • credit card: Diners-club

general fuepumintak:

  • ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Fuel Pumps Sending Units
  • condition: New

shipping fuepumintak:

  • transit: 3-9 Days
  • type: Calculated
  • service: UPS Ground
  • cost: $9.42
  • class: Standard
  • carrier: UPS

offer fuepumintak:

  • options: Ship-to-home
  • quantity: 1
  • best offers: True
  • availability: In Stock
  • sold: 0
  • started: May 27, 2026
part type: fuel tappet pump,
category: atv parts > atv, side-by-side utv parts accessories > air intake fuel delivery > fuel pumps sending units, sku: 5539212297669603,
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