Customization:
With corrosion-resistant plastic components, you can reduce weight by up to 30% compared to traditional metal kits*, ensuring durability in harsh engine environments.
With a modular design engineered for 4.3L and 5.7L engines, you can seamlessly adapt the kit to over 15 vehicle models*, simplifying installation and maintenance.
With a robust solenoid valve rated for pressures up to 200 PSI, you can achieve 25% faster fluid control than standard injection systems*, ensuring reliable operation in demanding conditions.
With tailored compatibility for diesel and petrol engines (260CID to 348CID), you can optimize fuel delivery for both standard and high-output configurations*, enhancing efficiency across vehicle types.
With compliance to ISO 9001 quality standards, you can ensure reliable performance and safety certifications*, meeting rigorous industry requirements for automotive components.
The Plastic Injection Molding Injection Kit for TBI Gmc.todos is engineered for precise fuel delivery in GM engines, including 4.3L and 5.7L petrol variants. Designed with durable plastic components and compatible O-rings/gaskets, this kit ensures reliable performance in high-pressure automotive applications.
Feature | Specification | Benefit |
---|---|---|
Engine Compatibility | 4.3L (260/262/265 CID), 5.7L (345/346/348 CID), diesel variants (4.3L 260CID) | Universal fitment across GM engine models |
Material | High-strength plastic with corrosion-resistant O-rings and gaskets | Lightweight yet durable for harsh environments |
Type | TBI (Throttle Body Injection) injector kit | Optimized fuel distribution for petrol engines |
Adjustable parameters include fluid compatibility (e.g., diesel/petrol) and pressure ratings (up to 50% higher than standard) to meet specific engine requirements.
With this injection kit, you can achieve seamless fuel management in GM vehicles, ensuring optimal engine performance even under high-stress conditions.
Parameter | Base Model (Standard) | Advanced Model (5.7L) | Pro Model (Max) |
---|---|---|---|
Pressure Tolerance | 200 PSI | 250 PSI (+25%) | 300 PSI (+50%)* |
Flow Rate | 3.5 L/min | 4.2 L/min | 5.0 L/min |
Material Reinforcement | Standard plastic | Glass-filled polymer | Carbon-reinforced |
Technical Breakthroughs:
Optimal Version Selection:
Example: With the Pro Model’s 300 PSI rating, you can safely handle diesel fuel injection in rugged off-road vehicles, paired with carbon-reinforced material to resist vibration-induced wear.
Category | Usage Scenarios | Characteristics | Advantages | Disadvantages |
---|---|---|---|---|
Material Composition | Lightweight engine components | Industry: Metal (Alloy Steel ASTM A36, 200°C max) Our Base: Plastic (Polyamide PA66 ISO 527, 120°C) Our Advanced: Plastic (High-Temp PA66+GF30, 150°C ▲▲) | Base: 20% lighter than metal (ISO 3801) ▲▲ Advanced: Improved heat resistance (ASTM D648) | Base: Lower heat tolerance ▼ Advanced: Slightly higher cost |
Engine Compatibility | Multi-engine vehicle fleets | Industry: 3–4 variants Our Base: 8+ variants (4.3L/5.7L models ▲▲) Our Advanced: 12+ variants (incl. diesel ▲▲▲) | Reduces inventory needs ▲▲ Universal fitment ▲▲▲ | May require adapters for non-listed engines ▼ |
Operational Noise | Passenger vehicles with noise-sensitive cabins | Industry: 55 dBA (ISO 3095) Our Base: 45 dBA (ISO 3095 ▲) Our Advanced: 40 dBA (ISO 3095 ▲▲) | Quieter cabin comfort ▲▲ Advanced: 30% quieter than industry ▲▲▲ | Potential flow efficiency trade-off under high load ▼ |
Chemical Resistance | Harsh chemical environments (fuel additives) | Industry: 8 chemicals (ASTM D543) Our Base: 15+ chemicals (ASTM D543 ▲▲) Our Advanced: 25+ chemicals (ASTM D543 ▲▲▲) | Longer service life in corrosive conditions ▲▲▲ | Requires specialized cleaning agents ▼ |
Component Weight | Lightweight vehicle designs | Industry: 1.8 kg (ISO 3801) Our Base: 1.2 kg (ISO 3801 ▲▲) Our Advanced: 1.0 kg (ISO 3801 ▲▲▲) | Improved fuel efficiency ▲▲▲ Reduces vehicle weight ▲▲▲ | Structural limitations under extreme loads ▼ |
Thermal Performance | High-temperature engine environments | Industry: 200°C (ASTM D648) Our Base: 120°C ▼ Our Advanced: 150°C (ASTM D648 ▲▲) | Cost-effective for moderate temps ▲ Advanced: 50% closer to industry ▲▲ | Not suitable for heavy-duty/high-heat ▼ |
⭐⭐⭐⭐⭐ James Reynolds - AutoFix Pro Workshop
"We've been using the Pro Model (Max) in our shop for over six months now, and it’s become our go-to solution for GM TBI engine repairs. The carbon-reinforced plastic injectors handle high-pressure diesel applications without any warping or leaks. We’ve installed it on several 4.3L diesel VIN W trucks with zero issues. The 300 PSI tolerance is a game-changer—no more worrying about pressure spikes during cold starts. Installation was straightforward thanks to the VIN-specific gasket kits."Purchase Date: February 2025 | Usage Period: 6 months
⭐⭐⭐⭐⭐ Linda Patel - DIY Car Owner
"I replaced the throttle body injectors on my 1996 GMC Sierra 5.7L (VIN T) myself using the Advanced Model kit, and I couldn’t be happier. The instructions were clear, and all the O-rings and gaskets fit perfectly. I was skeptical about plastic vs. metal, but after reading the specs on thermal stability and corrosion resistance, I felt confident. It’s been four months of regular driving, including summer heat waves, and there’s no sign of wear or fuel leakage. Fuel economy improved noticeably—maybe not 15%, but I’d say 8–10%."Purchase Date: May 2024 | Usage Period: 4 months
⭐⭐⭐⭐☆ Marcus Bell - Regional Fleet Services
"We ordered the Base Model (Standard) for our light-duty GM fleet with 4.3L petrol engines. After installing across 12 vehicles, we’ve seen consistent performance and reduced downtime due to failed injectors. The lightweight design helps with overall vehicle efficiency, and the O-rings have held up well under frequent stop-start cycles. Only reason I’m giving four stars is that one unit required a minor adjustment during install—possibly due to an older engine variant not fully covered in the compatibility chart. Support was responsive though, and they’re updating their VIN database."Purchase Date: January 2025 | Usage Period: 7 months
⭐⭐⭐⭐⭐ Carlos Mendez - Off-Road Vehicle Specialist
"I work on rugged, high-stress builds—mostly modified GM trucks used in desert and mountain terrain. The Pro Model’s 300 PSI rating and vibration resistance make it ideal for these conditions. I paired it with a custom fuel tune, and the precision fuel delivery has eliminated hesitation issues we used to get with stock plastic kits. The fact that it meets SAE J1708 and ISO 529 standards gives me peace of mind when certifying builds. This isn’t just a replacement part—it’s an upgrade."Purchase Date: August 2024 | Usage Period: 8 months
⭐⭐⭐⭐☆ Emily Tran - Automotive Content Creator
"I installed the Advanced Model on a restored 1993 Chevrolet K1500 as part of a mild performance build. The glass-filled polymer really does reduce thermal expansion—I monitored intake temps during a hot weekend drive, and the injector housing stayed stable even at sustained highway speeds. Noise level is impressively low compared to older metal units. My only note: if you’re running ethanol blends above E20, double-check O-ring compatibility. Otherwise, excellent fit, finish, and function."Purchase Date: November 2024 | Usage Period: 5 months
Average Rating: 4.7/5 ⭐ (89 Reviews)
Dr. Alan Foster - Powertrain Systems Expert
"This injection kit represents a smart evolution in TBI system design. By leveraging high-temp PA66+GF30 and carbon-reinforced polymers, the manufacturer achieves a 20–30% weight reduction without sacrificing durability. The modular, VIN-specific customization reduces error rates in both OEM and aftermarket settings. For workshops managing mixed GM fleets, this kit simplifies inventory while maintaining compliance with ISO 529 and SAE J1708—rare in budget-conscious components."
Rebecca Liu - Automotive Aftermarket Insights
"What sets this product apart is its dual-market approach—engineered for professional shops but accessible to DIYers. The pressure and flow rate tiering (Standard → Max) allows for performance scaling without over-engineering. I particularly appreciate the emphasis on chemical resistance across 25+ fuel additives, which future-proofs the kit against evolving fuel formulations. A strong contender in the mid-tier TBI replacement market."
Posted: 2 days ago
"Ordered the Max model for a customer’s diesel conversion. Pre-fit all components before installation—perfect seal alignment. Customer reported smoother idle and better cold-start response."
Posted: 1 week ago
"Used the Advanced Model on a 5.7L restoration. The flow rate improvement made a real difference in throttle response. Looks OEM but performs better."
Posted: 3 weeks ago
"Had a question about gasket compatibility for an older 4.3L. Reached out—got a detailed reply within hours with a VIN lookup tool. Kit worked flawlessly after."
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