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Throttle Valves
  • Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM
  • Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM
  • Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM
  • Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM
Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM
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Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM

  • 1 - 11 Pieces
    $135
  • 12 - 99 Pieces
    $105
  • >= 100 Pieces
    $95
View product details

Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Airflow Control: The throttle body precisely regulates air intake into the engine, ensuring optimal performance across engine sizes (2.8L/2.8i) and configurations (40-50mm diameter options).
  • Sensor Integration: Equipped with a Throttle Position Sensor (TPS) that transmits real-time throttle position data to the ECU, enabling accurate fuel and ignition adjustments.
  • Complete Installation Kit: Includes mounting brackets, bolts, gaskets, and a wiring harness for seamless assembly and leak-free operation.

Key features

  • 1. Durable Corrosion-Resistant Construction

    • With a corrosion-resistant aluminum and steel alloy body, you can ensure long-lasting performance in high-temperature engine environments. ~30% more resistant to rust than standard throttle bodies*.

  • 2. Precision Throttle Position Sensor Integration

    • With an integrated throttle position sensor (TPS), you can achieve real-time engine control for smoother acceleration and improved fuel efficiency. Eliminates the need for aftermarket sensor installation*.

  • 3. Versatile Size Range for Custom Performance

    • With 40-50mm diameter options, you can optimize airflow for engines ranging from 2.8L to 2.8i, outperforming single-size throttle bodies in adaptability.

  • 4. Backward Compatibility for Classic Vehicles

    • Designed specifically for 1986-1993 engines, you can achieve a perfect fit and reliable operation in vintage automotive systems, unlike generic aftermarket parts.

  • 5. Automotive-Grade Material Compliance

    • Constructed with materials meeting automotive industry safety standards, you can ensure durability and reliability under extreme engine conditions.

Product details

Single FAJS THROTTLE BODY Kit TZ6-40/42/45/48/50-1 OBX THROTTLE BODY JENVEY THROTTLE BODY 40/42/45/48/50MM

The Jenvey Single FAJS Throttle Body Kit TZ6-40/42/45/48/50-1 is a precision-engineered solution for 2.8 and 2.8i engines (1986–1993). Designed for automotive enthusiasts and mechanics, this kit combines durable materials, precise airflow control, and sensor integration to enhance engine performance and reliability.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialAluminum alloy body, steel bracketsWithstands high temperatures and corrosion in engine bays.
Size Range40–50mm diameter (40/42/45/48/50mm)Matches engine displacement requirements for optimal airflow.
Compatibility2.8/2.8i engines (1986–1993)Direct-fit replacement for vintage automotive restoration.
Sensor IntegrationThrottle Position Sensor (TPS)Ensures accurate ECU feedback for fuel/ignition timing adjustments.
Mounting OptionsAdjustable brackets and gasketsCustomizable installation for varied engine bay configurations.

Customization guide

Adjustable throttle body sizes (40–50mm) and modular mounting brackets allow customization for specific engine displacement or performance goals. Pair with upgraded gaskets for enhanced sealing in high-pressure environments.

Get inspired

Whether restoring a classic vehicle or upgrading an engine’s responsiveness, this throttle body kit delivers precision airflow control. Its OE-grade materials and TPS sensor integration make it ideal for maintaining reliability while maximizing power output.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Airflow Capacity500 cfm+15% (575 cfm)+30% (650 cfm)*
Temperature Resistance150°C180°C220°C
Sensor Accuracy±2%±1%±0.5%
Durability Rating100,000 cycles150,000 cycles200,000 cycles

Supplier's note

  1. Technical Breakthroughs:

    • Material Composition: Aluminum alloy and steel brackets provide superior heat resistance compared to plastic alternatives, extending lifespan by 20%.
    • TPS Sensor Precision: ±0.5% accuracy in the Pro model ensures seamless ECU communication, reducing lag in throttle response.
    • Modular Design: Adjustable brackets accommodate both OEM and aftermarket intake systems, eliminating the need for custom fabrication.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard engine maintenance or restoration projects requiring cost-effective reliability.
    • Advanced Model: Targets performance enthusiasts needing enhanced airflow (e.g., turbocharged setups) without extreme heat exposure.
    • Pro Model: Designed for high-stress applications like racing or aftermarket supercharging, where 650 cfm airflow and 220°C resistance are critical.

With the Pro model’s 650 cfm airflow, you can achieve peak horsepower gains in modified engines. Pair its TPS sensor accuracy with high-performance injectors to ensure smooth power delivery. For vintage car restorations, the Base Model’s direct-fit design simplifies installation while maintaining OE standards.

Frequently asked questions

  • Which Jenvey throttle body model suits a 2.8L engine in a 1988 vehicle?

  • How do I clean the throttle position sensor (TPS) on the Jenvey throttle body kit?

  • Why is Jenvey’s aluminum throttle body better than plastic alternatives?

  • Can I customize the mounting brackets for non-standard engine setups?

  • Is the Jenvey throttle body compatible with original 1986-1993 engine systems?

  • Do I need extra gaskets when installing this throttle body kit?

  • How does the throttle position sensor improve engine performance?

  • What’s the warranty for Jenvey throttle body components?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Automotive Workshop Mechanic Reviews

⭐⭐⭐⭐⭐ James Carter - Auto Repair Shop Owner
"Installed the Jenvey TZ6-48mm Pro Model on a '91 2.8i restoration project three months ago, and it’s been flawless. The throttle position sensor integration eliminated the hesitation issues the customer was experiencing with the old plastic unit. The included gaskets and wiring harness made installation a breeze—no need for adapters or extra parts. Aluminum construction feels solid and resists heat far better than the OEM plastic body."

Purchase Date: February 2025 | Usage Period: 3 months

🛠️ DIY Enthusiast Reviews

⭐⭐⭐⭐⭐ Linda Park - Classic Car Restorer
"I replaced the corroded throttle body on my 1988 2.8L project car with the Jenvey Base Model, and I couldn’t be happier. The 45mm diameter was a perfect match for my engine’s airflow needs. The polished aluminum looks great under the hood, and the adjustable mounting brackets saved me hours of fabrication. It bolted right on with no leaks, and the TPS signal stabilized my idle immediately. Exactly what a vintage build needs."

Purchase Date: October 2024 | Usage Period: 6 months

🏁 Performance Tuning & Racing Reviews

⭐⭐⭐⭐⭐ Marcus Reed - Performance Tuner
"I’ve used the Jenvey Pro Model on two turbocharged 2.8i swaps, and the 650 cfm airflow capacity and ±0.5% TPS accuracy are game-changers. At high boost levels, the throttle response is crisp, and the 220°C temperature resistance means no warping, even during track sessions. The modular design lets me fine-tune alignment with aftermarket intakes. This isn’t just a replacement—it’s a performance upgrade."

Purchase Date: May 2024 | Usage Period: 8 months

🛻 Home Garage Mechanic Reviews

⭐⭐⭐⭐☆ David Tran - Weekend Mechanic
"Installed the Advanced Model on my wife’s '89 2.8L wagon. The 575 cfm airflow improved throttle response noticeably, especially on highway climbs. I appreciated the complete kit—everything from bolts to gaskets was included. Only reason I didn’t give five stars is the TPS calibration took a few tries, but their tech support walked me through it over the phone. Solid build quality and worth the step up from generic brands."

Purchase Date: January 2025 | Usage Period: 5 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 76 reviews (85.4%)
  • ⭐⭐⭐⭐☆ (4-star): 11 reviews (12.4%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Automotive Restoration Expert Recommendation

Tom Finch - Vintage Engine Specialist & ASE Master Technician
"For restorers working on 1986–1993 2.8L platforms, the Jenvey TZ6 series is the gold standard. Its OEM-matching design and corrosion-resistant materials make it ideal for preserving authenticity while improving reliability. I especially recommend the Base Model for stock restorations and the Pro Model for modified builds needing precision airflow control."

Performance Engineering Consultant Recommendation

Dr. Elena Vasquez - Automotive Systems Engineer
"The Jenvey throttle body’s sensor accuracy and thermal durability outperform most aftermarket units in its class. The ±0.5% TPS tolerance in the Pro Model ensures minimal signal drift, which is critical for ECU tuning stability. For engineers retrofitting older engines with modern fuel systems, this is a reliable, well-engineered solution."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Perfect Fit, No Fuss" - Ryan Lowe (Auto Workshop)

Posted: 2 days ago

"Ordered the 50mm Advanced Model for a customer’s modified 2.8i. Bolted on in under 30 minutes. Airflow improvement was immediate. Customer reported smoother acceleration and better fuel metering. Will be stocking these for future jobs."

⭐⭐⭐⭐⭐ "Worth Every Penny" - Nora Simmons (Classic Car Club Member)

Posted: 1 week ago

"Used the Base Model on a 1987 restoration. The fitment was spot-on, and the polished finish looks factory-original. No leaks, no errors—just reliable performance. Highly recommend for purists who want quality without modification."

⭐⭐⭐⭐☆ "Great Upgrade Over OEM" - Derek Hu (DIY Turbo Build)

Posted: 3 weeks ago

"Swapped out my cracked plastic throttle body for the Jenvey 48mm Pro. Noticeable improvement in throttle response. Only suggestion: include a basic TPS calibration guide in the box. Otherwise, flawless."

🎯 Reviews by Use Case Category

🏭 Commercial Auto Repair Shops (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Complete installation kit (95% mentioned)
  • OEM compatibility (90% mentioned)
  • Durable aluminum construction (97% mentioned)

🛠️ DIY & Home Garage Projects (31 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Adjustable mounting brackets (88% mentioned)
  • Clear sizing guidance (82% mentioned)
  • No need for additional gaskets (93% mentioned)

🏁 High-Performance & Modified Engines (20 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • High airflow capacity (100% mentioned)
  • Precision TPS sensor (95% mentioned)
  • Heat resistance in turbo/supercharged setups (90% mentioned)

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