VW/BOSCH Fuel Injectors Set 30

( Brand: Vw/bosch ), ( Manufacturer Part Number: 311-906-031A ), ( Type: Fuel Injector ), ( Fuel Type: Gasoline )

Review VW/BOSCH Fuel Injectors Used Tested At 30 Lbs Set Of fits 1970–1973

The **VW/Bosch 311-906-031A fuel injectors (30-set, 1970 1973 models)** represent a critical and meticulously engineered component for maintaining peak performance, reliability, and emissions compliance in Volkswagen s classic air-cooled engines, particularly the iconic 1.6L and 1.9L four-cylinder variants found in the Type 1 (Beetle), Type 2 (Vanagon/Transporter), and Type 3 (Squareback) platforms. These injectors are part of the Bosch L-Jetronic fuel injection system, a pioneering technology for its time, designed to deliver precise metered fuel directly into the intake ports for optimal combustion. Each injector in this set is a finely crafted assembly featuring a robust stainless steel body, a ceramic or glass nozzle tip, and a solenoid-actuated valve that opens and closes with millisecond precision under the control of the engine s fuel injection computer. The **311-906-031A** designation signifies a specific variant optimized for the 1970 1973 production years, where emissions regulations were becoming more stringent, necessitating a balance between performance and compliance. These injectors are engineered to operate within a narrow pressure range, typically around **1.5 to 2.5 bar (22 to 36 psi)**, ensuring consistent fuel delivery regardless of engine load or RPM. Over time, however, carbon buildup, wear on the solenoid or nozzle, or contamination from fuel additives can compromise their efficiency, leading to rough idling, poor acceleration, or increased fuel consumption making this 30-piece set an ideal replacement for restorers, tuners, or enthusiasts seeking to restore their vehicle s original performance or upgrade to modern standards. The set includes all necessary injectors for a complete installation, including those for the intake manifold, ensuring no component is overlooked. When paired with a compatible fuel pump, pressure regulator, and ECU (or aftermarket tuning solution), these injectors can breathe new life into a vintage VW, offering a seamless blend of historical authenticity and contemporary reliability. Whether for a showroom-worthy restoration, a high-performance build, or a straightforward reliability upgrade, the **Bosch 311-906-031A injectors** stand as a testament to Bosch s engineering legacy and Volkswagen s enduring commitment to precision automotive technology.

**Pros and Cons of buying a VW/Bosch 311-906-031A Fuel Injectors (1970-1973, 30-Pack)**

1. **Compatibility and Reliability** These Bosch injectors are designed specifically for early VW models (1970 1973), ensuring a proper fit and reliable performance. Bosch is a well-established brand known for quality in automotive fuel systems.

2. **OEM-Level Quality** While not original equipment, these injectors are manufactured to Bosch s high standards, which means they should perform similarly to OEM parts, reducing the risk of early failure.

3. **Cost-Effective Replacement** Purchasing a full set of 30 injectors at once is often cheaper than buying them individually or in smaller quantities. This can be a good deal if you re restoring multiple vehicles or need spares.

4. **Improved Fuel Efficiency and Performance** If the original injectors were failing or clogged, replacing them with new Bosch units can restore proper fuel delivery, leading to better engine performance, smoother operation, and improved fuel economy.

5. **Ease of Installation** Since these are standard replacement parts, they should be straightforward to install, especially if you have basic mechanical experience or access to a mechanic.

6. **Long-Term Durability** Bosch injectors are built to last, provided they are properly maintained (cleaned or replaced as needed). This can save money in the long run compared to frequently replacing cheaper, lower-quality injectors.

7. **Widely Available Support** Bosch parts have extensive documentation, repair guides, and aftermarket support, making troubleshooting easier if issues arise.

---

1. **Potential for Counterfeit or Low-Quality Units** Buying from untrusted sellers (especially online marketplaces) increases the risk of receiving fake or substandard injectors. Always verify the seller s reputation and product authenticity.

2. **Upfront Cost** While a 30-pack is cost-effective, the initial purchase price may still be higher than buying just what you need for a single vehicle. If you only require a few injectors, this could be an unnecessary expense.

3. **Installation Complexity** Fuel injectors require precise installation, including proper wiring, sealing, and calibration. Improper installation can lead to leaks, poor performance, or even engine damage. If you re not experienced, professional labor may be needed.

4. **Compatibility Variations** While these injectors are designed for 1970 1973 VWs, there may be slight variations in mounting or electrical connections depending on the specific engine or model. Double-check compatibility before purchasing.

5. **Maintenance Requirements** Fuel injectors need periodic cleaning or replacement to prevent carbon buildup and ensure optimal performance. Neglecting maintenance can shorten their lifespan.

6. **Potential for Overkill** If only a few injectors are failing, replacing all 30 at once may be excessive unless you re restoring a vehicle or planning long-term use.

7. **Shipping and Handling Risks** If ordering online, there s a risk of damage during shipping, especially for delicate mechanical parts. Ensure proper packaging and insurance if purchasing from a distant seller.

---

The **VW/Bosch 311-906-031A fuel injectors (1970 1973, 30-pack)** are a solid choice for those restoring or maintaining early VW engines, offering reliability, compatibility, and long-term value. However, they are best suited for projects where multiple injectors are needed or where you want to ensure a full set of high-quality replacements. For single-vehicle repairs, purchasing only the required number of injectors may be more economical.

- **Buy if:** You re restoring a vehicle, need spares, or want to replace all injectors at once for long-term reliability. Verify the seller s authenticity to avoid counterfeit parts.

- **Avoid if:** You only need a few injectors for a minor repair, as the bulk purchase may not be cost-effective. In this case, check for individual replacements or smaller packs.

- Research the specific engine model to confirm exact compatibility.

- Consider purchasing from a reputable dealer or authorized Bosch distributor to ensure genuine parts.

- If unsure about installation, consult a mechanic to avoid costly mistakes.

- Pair the injectors with a fuel system cleaning or maintenance routine to maximize their lifespan.

For most serious VW enthusiasts working on classic engines, this is a worthwhile investment when used appropriately.

Details:

The fuel injectors were used for Bugs,Fastbacks,Square backs and Porsche's.The cleaned,pressure tested at 30 lbs.I have 3 sets of 4 selling each as a set only.I am them is 1 $40 VW part No 311-906-031A.

part #: 311906031a price

• $40.00

specifications carfuelinjector:

• for years: 1970-1973
• brand: Vw/bosch
• mpn: 311-906-031a
• type: Fuel Injector
• fuel type: Gasoline

offer carfuelinjector:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• started: May 9, 2026

seller carfuelinjector:

• city: Westerly, Rhode Island
• # reviews: 295
• rating: 94.1%

returns carfuelinjector:

• policy: No Returns

shipping carfuelinjector:

• transit: 4-9 Days
• class: Standard
• carrier: UPS
• service: UPS Ground
• cost: $16.72
• type: Calculated

general carfuelinjector:

• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
• condition: Used

payments carfuelinjector:

• other
• credit card: Diners-club
• wallet: Paypal

Vw/bosch 311-906-031A Is Similar To:

• Cleaned amp Flow Tested OEM BOSCH FUEL INJECTOR SET 4 00-06 VW Audi 1.8 (19.5% similar) ...(January 26th, 2014)
• Fuel Injector-OE Supplier WD EXPRESS 126 54031 066 fits 01-05 VW Jetta 2.0L-L4 (24.5% similar) Enteric, good year gator back,doorman, cortex,national...(April 22nd, 2014)
• FUEL INJECTOR 022906031J AUDI TT VW TOUAREG 04-06 3.2L (18.3% similar) 2l 6 Cl 2004 -2005 Volkswagen trucks Volkswagen Tuareg flu injector, 2l fits: 2004 -2006 Audi Audi Ty flu injector, 2004 -2006 Audi Audi Ty flu injector...(January 14th, 2014)
• 03H906036 Fuel Injector set 6 04-13 For Audi VW 3.6L (41.2% similar) The products include: fuel injector,radiator fan motor,airbag control module,knock sensors,throttle,clock spring,crankshaft sensor,ignition coil,ecu ecm,pressure sensor,power window regulator,air mass sensor,nix sensor,oxygen sensor,airbag crash sensor etc. This is an new original part, oem not ...(May 16th, 2014)
• Audi A4 A6 A8 VW Passat 2.5 TDI injector AFB Bosch 0432133834 059130202 OEM (22.4% similar) Audi a4 a6 a8 vw pasta 5 TD injector AFB bosch 0432133834 059130202 oem...(April 6th, 2014)
• New Bosch NA14X Fuel Injector 0432217164 VW Golf Jetta Diesel MK2 (38% similar) Volkswagen GOLF1989 Volkswagen golf fuel injector part: fuel injector bosch REMANUFACTURED1990 Volkswagen golf fuel injector part: fuel injector bosch REMANUFACTURED1991 Volkswagen golf fuel injector part: fuel injector bosch REMANUFACTURED1986 Volkswagen golf fuel injector engine base: if your ...(March 27th, 2014)
• 6 new Audi A4 A6 A8 Q7 VW Touareg Phaeton 2.7 3.0 tdi Bosch injector 057130277AH (20.4% similar) Posted with mobile. So not only will it fit perfectly, it will last. Msrp $695 per injector. Need a injector module. Why buy an aftermarket one that might not fit when you can get a genuine Volkswagen/Audi one that will fit perfectly, the first time. Injector module 057-130-277-AH is a genuine ...(May 29th, 2014)
• Audi A4 A6 A8 Q7 VW Genuine Fuel Injection Unit Injector 059130277AH (30.3% similar) This is a used, genuine fuel injector. Part number: 059 130 277 ah 059130277AH replacement part number since 04/2009: 059 130 277 Bud 059130277BD this part is also a replacement of all the following part numbers: 059 130 277 AA 059130277AA 059 130 277 ab 059130277AB 059 130 277 j 059130277J 059 130 ...(April 30th, 2014)
• 4 OEM VW Audi Diesel Fuel Injectors 1981 1982 1983 1984 068130201 NA13X 068130 (31.8% similar) This offer includes all four oem diesel fuel injectors in very good condition with part numbers 068130201, NA13X and 068130. Pop pressures and spray patterns are all within spec. Once removed, these were cleaned and retested. These will fit numerous vw and Audi vehicles from the early 80'S such as ...(June 7th, 2014)
• 4 FUEL INJECTORS 06B133551M AUDI A4 VW PASSAT 01-05 1.8T (13.3% similar) Works for some other vw and Audi applications. There is nothing wrong with them, just trying to clear out some room. I got bigger fuel injectors for a custom application. Part number 06B133551M...(May 27th, 2014)
• VDO Seat Leon Ibiza Cordoba Skoda Fabia VW Bora Golf Fuel Injector 1.4-1.6L 99- (25.6% similar) 4/1 6v 10/2002 - 11/2009 1390 74 100 AB sedan seat Cordoba 6L2 252 HOFFER75117166 meat & DORIA75117166 SIDAT81. Picture cross reference and OE number list --> brand number FISPA81. 4/1 6v 08/1999 - 02/2002 1390 74 100 AB hatchback...(June 10th, 2014)