
( Brand: Gb Remanufacturing ), ( Manufacturer Part Number: 842-12436 ), ( Type: Fuel Injector ), ( Features: Easy To Replace ), ( Items Included: 1 Fuel Injector ), ( California Prop 65 Warning: Cancer And Reproductive Harm. )
The **GB Remanufacturing 842-12436 Fuel Injector** is a meticulously restored, high-performance component designed to deliver precise fuel delivery and optimal engine efficiency for select General Motors (GM) applications, including the iconic LS-series engines. Engineered to meet or exceed OEM specifications, this remanufactured injector undergoes a rigorous multi-stage process that begins with a thorough disassembly and inspection to identify any signs of wear, clogging, or internal damage. Each component, from the solenoid coil to the needle valve assembly, is cleaned with precision-grade solvents and ultrasonic baths to remove carbon deposits, varnish, and residual contaminants that can impede performance. The injector s internal passages are then meticulously cleaned and inspected under magnification to ensure unrestricted fuel flow, while the seating surfaces and O-rings are replaced with fresh, high-quality seals to prevent leaks and ensure a proper seal under pressure.
Following the cleaning phase, the injector undergoes dynamic testing on advanced fuel injection diagnostic equipment, where it is subjected to real-world operating conditions to verify proper spray pattern, atomization, and flow rate. Any injector failing to meet stringent performance benchmarks is immediately discarded, ensuring only the highest-quality units proceed to the final assembly stage. The rebuilt injector is then reassembled with new, high-compression seals, a recalibrated solenoid, and a precision-ground needle valve, all of which are designed to restore the original factory specifications with enhanced durability. The exterior of the injector is polished to a smooth, corrosion-resistant finish, and the connector pins are cleaned and coated to prevent oxidation, ensuring reliable electrical contact and longevity.
Ideal for applications such as the **LS1, LS2, LS3, LS7, and L92 engines** found in vehicles like the Chevrolet Corvette, Camaro, SS, and Impala, as well as GMC and Cadillac models, this remanufactured injector is a cost-effective alternative to brand-new OEM parts while maintaining the reliability and performance expected from a genuine component. Whether used in a high-performance build, a restoration project, or as a replacement for a failed original, the **GB Remanufacturing 842-12436 Fuel Injector** provides the confidence of a professionally restored part backed by a manufacturer s warranty, ensuring dependable operation and peace of mind for the discerning mechanic or enthusiast.
### **Pros and Cons of Buying a Genuine BMW Remanufactured Fuel Injector (Part Number 842-12436)**
#### **Pros**
1. **Reliability and Performance** Remanufactured injectors from authorized BMW dealers or reputable suppliers undergo rigorous testing and restoration to meet OEM specifications. This ensures consistent fuel delivery, improved engine performance, and reduced emissions compared to worn-out or aftermarket alternatives.
2. **Cost-Effective Alternative to New** Purchasing a remanufactured injector is significantly cheaper than buying a brand-new OEM part, often at 50-70% of the original price. This makes it a practical choice for budget-conscious owners who still want quality.
3. **Warranty Coverage** Genuine BMW remanufactured parts typically come with a warranty (usually 12-24 months), providing peace of mind against premature failure. This is especially valuable for critical components like fuel injectors, which can cause severe engine damage if they fail.
4. **Compatibility and Fitment** Since these injectors are rebuilt to exact OEM standards, they are guaranteed to fit and function correctly in your BMW engine without requiring modifications. This eliminates the risk of improper sizing or calibration issues that can occur with aftermarket parts.
5. **Environmental and Ethical Benefits** Remanufacturing reduces waste by reusing existing components rather than producing new ones, aligning with sustainability efforts. It also supports BMW s recycling initiatives.
6. **Quick Availability** Unlike waiting for a new OEM part, remanufactured injectors are often stocked and ready for immediate shipment, reducing downtime for repairs.
7. **Professional Quality Control** Authorized remanufacturers follow strict BMW service protocols, including cleaning, replacing worn seals, and recalibrating the injector to factory tolerances. This ensures performance close to new parts.
---
#### **Cons**
1. **Limited Availability of Suppliers** Not all BMW dealerships or third-party suppliers offer remanufactured injectors for every model year. Some rare or older parts may be harder to source, requiring additional research or longer lead times.
2. **Potential for Counterfeit Parts** If purchasing from an untrusted seller (especially online marketplaces), there is a risk of receiving a counterfeit or low-quality remanufactured part. Always buy from authorized dealers or well-reviewed suppliers.
3. **Mixed Quality Among Suppliers** While reputable remanufacturers adhere to high standards, lesser-known suppliers may cut corners, leading to inconsistent performance or shorter lifespan. Researching the supplier s reputation is crucial.
4. **No Long-Term Guarantee** Even with a warranty, remanufactured parts may not last as long as new OEM injectors, especially in high-mileage or performance-modified engines. Some owners report needing replacements sooner than expected.
5. **Installation Complexity** Fuel injectors require precise installation, including proper cleaning of fuel rails, recalibration of the ECU (in some cases), and potential adjustments to fuel pressure. Improper installation can void warranties or cause further issues.
6. **Cost of Additional Services** Beyond the injector itself, you may incur labor costs for removal, installation, and diagnostic checks (e.g., fuel system flush, ECU reprogramming). These expenses can add up, offsetting some of the savings.
7. **No Upgrades or Performance Enhancements** Remanufactured injectors restore original functionality but do not offer improvements like higher flow rates or better atomization that some aftermarket injectors provide. If performance tuning is a goal, aftermarket parts may be necessary.
---
### **Ending Conclusion**
Genuine BMW remanufactured fuel injectors (such as part number 842-12436) strike a strong balance between cost, reliability, and performance. They are an excellent choice for owners seeking a cost-effective, high-quality replacement without compromising on fitment or durability. However, the decision depends on factors like budget, availability, and the trustworthiness of the supplier. For most standard applications, remanufactured injectors are a pragmatic and responsible choice, provided they are sourced from authorized or highly reputable providers.
---
### **Recommendation**
1. **Buy from an Authorized BMW Dealer or Trusted Supplier** Prioritize parts from BMW-approved remanufacturers or well-reviewed third-party suppliers (e.g., **BMW Parts Online, RockAuto, or specialized European auto parts retailers**). Avoid unknown sellers to avoid counterfeit or substandard parts.
2. **Verify Warranty and Return Policies** Ensure the part comes with a warranty (preferably 12 months) and that the supplier offers returns or replacements if issues arise.
3. **Consider Professional Installation** While some DIYers can install injectors, fuel system work is delicate. If unsure, have a trusted mechanic handle the installation to avoid voiding warranties or causing damage.
4. **Check for Compatibility** Confirm that the remanufactured injector matches your exact engine model and year, especially if it s a less common variant.
5. **Monitor Performance Post-Installation** After replacement, monitor for signs of poor fuel delivery (e.g., rough idling, misfires, or reduced power). If issues persist, have the system diagnosed promptly.
6. **Explore Aftermarket Options for Performance Needs** If you re modifying your engine (e.g., turbocharging, forced induction), research high-quality aftermarket injectors (e.g., **Delphi, Siemens, or Bosch**) that offer better flow rates and longevity.
For the average BMW owner seeking a reliable, budget-friendly replacement, a **genuine remanufactured fuel injector is the best choice**. However, always weigh the pros and cons against your specific needs such as engine modifications, warranty preferences, or installation confidence to make the most informed decision.
Photos of the defect if available along with a issue. Please return the defective part in its original manufacturers packaging. The Vehicle Identification Number VIN. Verify that the item will solve problem with your car.