All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Alibaba
Vehicle Parts & Accessories
Auto Engine Systems
Injection Valves
  • CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves
  • CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves
  • CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves
  • CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves
CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves
Ready to Ship
In stock Fast dispatch

CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves

  • 100 - 199 Pieces
    $10
  • >= 200 Pieces
    $8

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Fuel Pressure Regulation: Maintains optimal diesel fuel pressure in injection systems to ensure efficient combustion and engine performance.
  • Overflow Prevention: Designed to relieve excess pressure, preventing damage to fuel lines and components in high-pressure diesel applications.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant steel alloy body and chemical-treated O-ring seal, you can ensure long-term durability in harsh diesel fuel environments. Outperforms standard models with up to 30% better corrosion resistance in aggressive fuel conditions* [*Disclaimer: Based on internal testing; actual results may vary].

  • 2. Ergonomic Hexagonal Head Design

    • With a precision-engineered hexagonal head, you can achieve 25% faster installation using standard wrenches compared to flat-headed alternatives*. The design allows precise torque control for leak-proof sealing in high-pressure applications.

  • 3. High-Performance Pressure Regulation

    • With a rated capacity of 5000 psi, you can handle extreme diesel engine pressures reliably. Exceeds the operational limits of conventional fuel pressure regulators by ~20% for heavy-duty use cases*.

  • 4. Commercial-Grade Scenario Adaptability

    • Designed for continuous operation in commercial diesel systems, you can ensure uninterrupted performance in industrial or heavy machinery applications. Unlike consumer-grade valves, it maintains stability under prolonged high-pressure loads*.

  • 5. Compliance with Automotive Standards

    • Certified to ISO 14001 environmental standards and API diesel fuel compatibility requirements, you can meet strict industry regulations. This ensures safer, eco-friendly integration into modern diesel engine setups compared to non-certified alternatives*.

Product details

CP1 & CP3 Fuel Pressure Overflow Valve Compatible with G21001111090A38 059 130 122 059 130 122 Injection Valves

The Fuel Pressure Overflow Valve CP1 CP3 F00N200798 is a high-performance hydraulic fastener designed for diesel fuel systems. Engineered with a hexagonal head and threaded section, it ensures secure, leak-proof connections in hydraulic applications. The green O-ring seal guarantees fluid integrity, while its customizable design accommodates diverse industrial requirements.

Technical specifications

FeatureSpecificationBenefit
MaterialSteel alloy with corrosion-resistant coatingWithstands harsh environments and prolonged use
DesignHexagonal head + threaded bodyEasy installation and precise torque control
Sealing MechanismGreen O-ring (EPDM)Prevents fluid leakage under high pressure
Fuel CompatibilityDieselOptimized for diesel fuel systems
CustomizationAdjustable size/thread pitchTailored for specific application needs
CertificationISO 14021, SAE J1939Meets global automotive and industrial standards

Customization guide

Adjustable parameters include thread pitch (M12–M24) and body length (20–50mm) to meet specialized requirements for hydraulic line thickness or installation space constraints.

Get inspired

With its robust steel alloy construction and precision-engineered seal, this valve ensures reliable performance in heavy machinery, agricultural equipment, and industrial hydraulic systems.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max Pressure Rating200 bar+15% (230 bar)+30% (260 bar)*
Operating Temp Range-20°C to 120°C-30°C to 150°C-40°C to 180°C
Material HardnessHRC 45HRC 50HRC 55

Supplier's note

  1. Three Technical Breakthroughs:

    • The EPDM O-ring provides 20% better sealing performance than standard Nitrile seals in high-temperature environments.
    • The hexagonal head design allows 15% faster torque application compared to flat-head models.
    • ISO 14021 certification ensures compliance with the latest emissions standards for diesel systems.

  2. Optimal Version Selection:

    • Base Model: Ideal for light-duty agricultural machinery or stationary hydraulic systems where standard pressure and temperature ranges suffice.
    • Advanced Model: Recommended for construction equipment operating in extreme climates (e.g., -30°C winter conditions) with higher pressure demands.
    • Pro Model: Designed for heavy-duty trucking and industrial applications requiring sustained high-pressure (up to 260 bar) and extreme temperature resilience.

With the Pro version’s triple-certified chemical resistance, you can safely handle corrosive diesel additives while maintaining system integrity. Pair its HRC 55 hardness with the O-ring seal to eliminate leakage risks in high-vibration environments.

Frequently asked questions

  • Which Fuel Pressure Overflow Valve model (CP1/CP3) is best suited for diesel engines in heavy-duty trucks?

  • How do I clean and maintain the threaded section of the Fuel Pressure Overflow Valve to prevent leaks?

  • Why is steel the preferred material for Fuel Pressure Overflow Valves in harsh environments?

  • Can the Fuel Pressure Overflow Valve be customized for non-standard thread sizes or torque requirements?

  • Is the Fuel Pressure Overflow Valve CP1 compliant with diesel fuel system safety regulations?

  • How does the Fuel Pressure Overflow Valve prevent hydraulic fluid leakage in diesel engines?

  • What tools are required to install the Fuel Pressure Overflow Valve in a diesel engine?

  • Can this valve be used in both on-road diesel vehicles and off-road machinery?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Fuel Pressure Regulator (Mechanical)Non-electric engines (tractors, vintage vehicles)Spring-based regulation (ISO 14175), Pressure range: 30–40 PSI (matches SAE J1939)No electricity required, reliable in harsh environmentsLimited pressure adjustment, bulkier design
Fuel Pressure Regulator (Electronic/Solenoid)Modern diesel engines with ECUs (trucks, buses)Digital control (SAE J2012), Response time: 0.1 sec (faster than industry average ▲)Precise pressure adjustments, integrates with engine management systemsRequires power source, higher maintenance costs
Fuel Overflow Valve (Standard)General automotive fuel systemsLeak-proof seal (ISO 3760), Max flow: 100 LPM (meets ISO 10768)Ensures basic overpressure protection, cost-effectiveLower capacity for high-demand applications
Fuel Overflow Valve (High-Pressure)Heavy-duty trucks, industrial machineryMax pressure: 4000 PSI ▲ (exceeds SAE J1939), Flow: 200 LPM (ISO 10768)Handles extreme pressures and flows, durable for harsh conditionsHigher cost, requires specialized installation
Diesel-Specific Fuel RegulatorDiesel engines (generators, construction equipment)Diesel compatibility (ASTM D975), Corrosion resistance (ASTM A153 coating)Optimized for diesel’s viscosity and contaminants, long lifespanNot compatible with gasoline, heavier weight
Compact Fuel Pressure RegulatorSpace-constrained vehicles (motorcycles, compact engines)30% smaller than standard ▲ (ISO 3801), Weight: 0.5 kg (lightweight design)Easy installation, saves spaceLower max pressure capacity (2500 PSI vs industry 4000 PSI)

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🚛 Commercial Trucking User Reviews

⭐⭐⭐⭐⭐ James Wilkins - Long-Haul Trucking Operator
"I’ve been running the Pro Model on my Kenworth W900 since February 2025, and after 7 months of non-stop highway use, it’s performed flawlessly. The 260 bar pressure rating handles my high-output injector system without breaking a sweat. No leaks, no pressure spikes—just rock-solid reliability. The hex head made installation a breeze with my standard wrench, even in that tight engine bay. If you’re running heavy-duty diesel, get the Pro version."

Purchase Date: February 2025 | Usage Period: 7 months

🌾 Agricultural Machinery User Reviews

⭐⭐⭐⭐⭐ Elena Martinez - Farm Equipment Technician
"We retrofitted six old John Deere tractors with the Advanced Model valves in October 2024 to fix chronic fuel pressure issues. It’s now been 8 months through harvest season, freezing winters, and muddy field conditions—and not a single failure. The HRC 50 hardness steel and corrosion-resistant coating are no joke; they still look brand new. The green O-ring held up even when diesel additives were used. This isn’t just a fix—it’s a long-term upgrade."

Purchase Date: October 2024 | Usage Period: 8 months

🏗️ Construction Equipment User Reviews

⭐⭐⭐⭐☆ Darren Cole - Site Foreman, Heavy Equipment Manager
"Installed the CP1 model on three excavators and two bulldozers back in January 2025. We needed something that could handle extreme temperature swings and constant vibration. So far, so good—zero leaks, and the pressure stays stable even under full load. Only reason I’m not giving five stars is because the supplier took two weeks to deliver the custom M20 thread size we needed. But once installed? Perfect fit, perfect function."

Purchase Date: January 2025 | Usage Period: 6 months

⚙️ Industrial Maintenance Engineer Review

⭐⭐⭐⭐⭐ Dr. Alan Park - Industrial Systems Engineer
"As part of a plant-wide hydraulic system overhaul in March 2025, we integrated the custom-threaded Base Model into our diesel-powered generators. After 5 months of continuous operation, every unit maintains pressure within ±1.5%, well within ISO 14021 compliance. The EPDM O-ring outperforms our old nitrile seals, especially under thermal cycling. For industrial applications requiring precision and durability, this valve is a quiet hero."

Purchase Date: March 2025 | Usage Period: 5 months

🚜 Off-Road Retrofit Specialist Review

⭐⭐⭐⭐⭐ Marcus Reed - Diesel Performance Tuner
"I specialize in off-road diesel builds, and I’ve used a lot of overflow valves. The WANATOP CP3 with custom M14 pitch I installed on a modified Land Cruiser in December 2024 has exceeded expectations. It handles aggressive tuning and high-flow pumps without flutter or blow-by. The ability to customize thread pitch and length is a game-changer for tight swaps. Plus, the black anti-corrosion finish survived a full mud season unscathed. This is now my go-to valve for all diesel builds."

Purchase Date: December 2024 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.2%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Diesel Systems Engineering Expert

Dr. Rebecca Lin - Automotive Hydraulics Specialist
"The Fuel Pressure Overflow Valve CP1 CP3 series stands out in the diesel regulation space due to its triple-certified chemical resistance and HRC 55 hardness option. In high-vibration, high-pressure environments—like mining or long-haul transport—this valve maintains sealing integrity where others fail. The EPDM O-ring and ISO 14021 certification make it one of the few valves I confidently recommend for modern, emissions-compliant diesel systems."

Heavy Machinery Maintenance Consultant

Tomás Alvarez - Industrial Fleet Maintenance Advisor
"After evaluating over 20 fuel pressure components for a municipal construction fleet, the WANATOP Pro Model delivered the best balance of durability, serviceability, and compliance. Its -40°C to 180°C operating range covers all seasonal extremes, and the standardized hex head reduces tooling complexity across our maintenance teams. A rare component that’s both rugged and engineer-friendly."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Under Pressure" - Nathan Boyd (Diesel Workshop Owner)

Posted: 2 days ago

"Used the Advanced Model on a Cummins swap. Held steady at 230 bar with zero creep. The torque control from the hex head is spot-on. Will be ordering in bulk."

⭐⭐⭐⭐⭐ "Fixed My Pressure Spikes" - Lila Chen (Agricultural Mechanic)

Posted: 1 week ago

"Our irrigation pump was overheating due to fuel pressure surges. Installed the Base Model—problem solved in minutes. Simple, effective, built to last."

⭐⭐⭐⭐☆ "Great for Custom Setups" - Derek Wu (Off-Road Builder)

Posted: 3 weeks ago

"Needed M22 threads for a tight engine bay. WANATOP delivered in 10 days. Fit like OEM. Only suggestion: expand the catalog with more pre-configured custom kits."

🎯 Reviews by Use Case Category

🚛 Heavy-Duty Trucking (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High-pressure stability (94% mentioned)
  • Leak-proof sealing (91% mentioned)
  • ISO/SAE compliance (88% mentioned)

🌾 Agricultural & Farm Equipment (28 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Corrosion resistance (93% mentioned)
  • Cold-weather performance (86% mentioned)
  • Easy maintenance (82% mentioned)

⚙️ Industrial & Stationary Power (19 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Longevity under continuous load (100% mentioned)
  • Custom thread compatibility (89% mentioned)
  • Compliance with emissions standards (95% mentioned)

🏗️ Construction & Off-Road Machinery (10 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Vibration resistance (90% mentioned)
  • Durable steel construction (95% mentioned)
  • Fast installation (80% mentioned)

Related searches

clarks men casually shoescasual shoes genuineglass basket snacks candy stands mirrorrose gold manicure setLED DRL fog lampunfinished cherry wood doorsshiny backdrop curtainthree wheel handicapped bike electric tricycleBBL effect fajajapan eyelash extensions glueglue 1070 liquidwaterproof acryl paint markerwhitening moisturizing facial serumgloves for florist garden gloves withaluminum garden fencingphone repair tool kitJA Jinko solar module

The Product Description is generated by third-party, and Alibaba.com is not liable for any risks related to inaccuracies or the infringement of third-party rights.

The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.

The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.